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367 Commits

Author SHA1 Message Date
Hui Wang
66d86f0e76 vc_sm: Let it support to build in the non-src folder
If we build the kernel with "-O=$non-src-folder", this driver will
introdcue a building error because of the header's location.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:15 +01:00
Hui Wang
ded9db62f4 rtl8192cu: Let it support to build in the non-src folder
If we build the kernel with "-O=$non-src-folder", this driver will
introdcue a building error because of the header's location.

Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:15 +01:00
Phil Elwell
618efe6f07 drm/vc4: Prevent load tracking from breaking FKMS
Firmware KMS uses a mixture of VC4 processing and dedicated code. The
load tracking support in VC4 assumes it is dealing with vc4_plane_state
objects when up-casting with container_of, but FKMS uses unadorned
drm_plane_state structures causing the VC4 code to read off the end
into random portions of memory. Work around the problem in a minimally-
invasive way by over-allocating the FKMS plane state structures to be
large enough to contain a vc4_plane_state, filling the remainder with
zeroes.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:15 +01:00
Phil Elwell
38f2d0d117 Revert "drm/vc4: Disable load tracking by default"
This reverts commit 124fba550eeed6ef766e65759a6d8dfdc436d68e.
2019-09-17 11:20:15 +01:00
Phil Elwell
fa6f425274 Revert "configs: Nobble I2S sound cards for now due to modern dai_link api breakage"
This reverts commit f574dc066e.
2019-09-17 11:20:15 +01:00
Hui Wang
ad021fc01f ASoC: pisound: fix the parameter for spi_device_match
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:15 +01:00
Hui Wang
a744810f7e ASoC: allo-boss-dac: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:15 +01:00
Hui Wang
62c935517d ASoC: allo-piano-dac-plus: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
f436efe19c ASoC: allo-piano-dac: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
869a5f1c4c ASoC: audioinjector-octo-soundcard: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
a2da654b12 ASoC: audioinjector-pi-soundcard: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
4d25ac4149 ASoC: audiosense-pi: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
ef0fea4e31 ASoC: digidac1-soundcard: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
4fd717ceb0 ASoC: dionaudio_loco-v2: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
0d60b662c8 ASoC: dionaudio_loco: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
88b2c146db ASoC: fe-pi-audio: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
7ce33e9dd9 ASoC: hifiberry_dacplus: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:14 +01:00
Hui Wang
64b06d8f64 ASoC: i-sabre-q2m: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:13 +01:00
Hui Wang
d608e4d709 ASoC: iqaudio-codec: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:13 +01:00
Hui Wang
9c5f0eb104 ASoC: pisound: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:13 +01:00
Hui Wang
0643358c2f ASoC: rpi-proto: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:13 +01:00
Hui Wang
247f7797c1 ASoC: rpi-simple-soundcard: use modern dai_link style
Signed-off-by: Hui Wang <hui.wang@canonical.com>
2019-09-17 11:20:13 +01:00
Phil Elwell
c8588a0e4b net: bcmgenet: Workaround for Pi 4B network issue
Some combinations of Pi 4Bs and Ethernet switches don't reliably get a
DCHP-assigned IP address, leaving the unit with a self=assigned 169.254
address.

Forcing renegotiation has been found to be an effective workaround, so
add an automatic renegotiation after the link comes up for the first
time; enable it with genet.force_reneg=y - by default it is disabled.

See: https://github.com/raspberrypi/linux/issues/3108

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:13 +01:00
Phil Elwell
ae7c6e7b2d drm/vc4: Disable load tracking by default
The load tracking support appears to be broken which is causing
updates to be rejected (and duplicate mouse pointers!), so disable
it for now.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:13 +01:00
Phil Elwell
a336c4fa74 bcm2835_mmc: Remove vestigial threaded IRQ
With SDIO processing now managed by the MMC framework with a
workqueue, the bcm2835_mmc driver no longer needs a threaded
IRQ.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:13 +01:00
Matthias Reichl
ff803f1cca clk: clk-hifiberry-dacpro: fix kconfig
Make the clock driver and independent configuration option
and change the HifiBerry DAC+ and HifiBerry DAC+ADC kconfig
to select it.

This allows building only the Hifiberry DAC+ADC driver.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:13 +01:00
Matthias Reichl
561c35285f ASoC: hifiberry_dacplusadc: use modern dai_link style
Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:13 +01:00
Matthias Reichl
a031353aa6 ASoC: hifiberry_dacplusadc: fix DAI link setup
The driver only defines a single DAI link and the code that tries
to setup the second (non-existent) DAI link looks wrong - using dmic
as a CPU/platform driver doesn't make any sense.

The DT overlay doesn't define a dmic property, so the code was never
executed (otherwise it would have resulted in a memory corruption).

So drop the offending code to prevent issues if a dmic property
should be added to the DT overlay.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:12 +01:00
Matthias Reichl
b65d5c3a4d ASoC: rpi-wm8804-soundcard: use modern dai_link style
Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:12 +01:00
Matthias Reichl
338626941f ASoC: justboom-dac: use modern dai_link style
Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:12 +01:00
Phil Elwell
67c4745f8f pcie-brcmstb: Don't set DMA ops for root complex
A change to arm_get_dma_map_ops has stopped get_dma_ops from working
on the root complex, causing an error to be logged. However, there is
no need to override the DMA ops in that case, so skip it and
eliminate the error message.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:12 +01:00
Matthias Reichl
4f6f2754a1 ASoC: iqaudio-dac: use modern dai_link style
Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:12 +01:00
Matthias Reichl
3a3f99def6 ASoC: rpi-cirrus: use modern dai_link style
Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:20:12 +01:00
popcornmix
07aa13c6f0 configs: Nobble I2S sound cards for now due to modern dai_link api breakage 2019-09-17 11:20:12 +01:00
popcornmix
390d5a6a3c clk-bcm2835: Avoid null pointer exception
clk_desc_array[BCM2835_PLLB] doesn't exist so we dereference null when iterating
2019-09-17 11:20:12 +01:00
popcornmix
5533659af3 bcm2835_mmc: fixup 2019-09-17 11:20:12 +01:00
popcornmix
497803890b bcm2835-cpufreq: fixup 2019-09-17 11:20:12 +01:00
Phil Elwell
845d0322ef bcm2835-dma: Add proper 40-bit DMA support
The 40-bit additions are not fully tested, but it should be
capable of supporting both 40-bit memcpy on BCM2711 and regular
Lite channels on BCM2835.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:12 +01:00
Marek Behún
aa393f3dee staging: vc04_services: fix compiling in separate directory
The vc04_services Makefiles do not respect the O=path argument
correctly: include paths in CFLAGS are given relatively to object path,
not source path. Compiling in a separate directory yields #include
errors.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
2019-09-17 11:20:11 +01:00
Andrei Gherzan
f2ee4f0fd5 arm64/mm: Limit the DMA zone for arm64
On RaspberryPi, only the first 1Gb can be used for DMA[1].

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2019-July/665986.html

Signed-off-by: Andrei Gherzan <andrei@balena.io>
2019-09-17 11:20:11 +01:00
Phil Elwell
a01d088483 i2c: bcm2835: Set clock-stretch timeout to 35ms
The BCM2835 I2C blocks have a register to set the clock-stretch
timeout - how long the device is allowed to hold SCL low - in bus
cycles. The current driver doesn't write to the register, therefore
the default value of 64 cycles is being used for all devices.

Set the timeout to the value recommended for SMBus - 35ms.

See: https://github.com/raspberrypi/linux/issues/3064

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Jonathan Bell
043e900fdb xhci: add quirk for host controllers that don't update endpoint DCS
Seen on a VLI VL805 PCIe to USB controller. For non-stream endpoints
at least, if the xHC halts on a particular TRB due to an error then
the DCS field in the Out Endpoint Context maintained by the hardware
is not updated with the current cycle state.

Using the quirk XHCI_EP_CTX_BROKEN_DCS and instead fetch the DCS bit
from the TRB that the xHC stopped on.

See: https://github.com/raspberrypi/linux/issues/3060

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Phil Elwell
5a302425d4 tty: amba-pl011: Make TX optimisation conditional
pl011_tx_chars takes a "from_irq" parameter to reduce the number of
register accesses. When from_irq is true the function assumes that the
FIFO is half empty and writes up to half a FIFO's worth of bytes
without polling the FIFO status register, the reasoning being that
the function is being called as a result of the TX interrupt being
raised. This logic would work were it not for the fact that
pl011_rx_chars, called from pl011_int before pl011_tx_chars, releases
the spinlock before calling tty_flip_buffer_push.

A user thread writing to the UART claims the spinlock and ultimately
calls pl011_tx_chars with from_irq set to false. This reverts to the
older logic that polls the FIFO status register before sending every
byte. If this happen on an SMP system during the section of the IRQ
handler where the spinlock has been released, then by the time the TX
interrupt handler is called, the FIFO may already be full, and any
further writes are likely to be lost.

The fix involves adding a per-port flag that is true iff running from
within the interrupt handler and the spinlock has not yet been released.
This flag is then used as the value for the from_irq parameter of
pl011_tx_chars, causing polling to be used in the unsafe case.

Fixes: 1e84d22322 ("serial/amba-pl011: Refactor and simplify TX FIFO handling")

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
343c1bd880 staging: vc-sm-cma: Fix the few remaining coding style issues
Fix a few minor checkpatch complaints to make the driver clean

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
e91510e492 staging: vcsm-cma: Rework to use dma APIs, not CMA
Due to a misunderstanding of the DMA mapping APIs, I made
the wrong decision on how to implement this.

Rework to use dma_alloc_coherent instead of the CMA
API. This also allows it to be built as a module easily.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
48e37e9927 staging: vcsm-cma: Remove cache manipulation ioctl from ARM64
The cache flushing ioctls are used by the Pi3 HEVC hw-assisted
decoder as it needs finer grained flushing control than dma_ops
allow.
These cache calls are not present for ARM64, therefore disable
them. We are not actively supporting 64bit kernels at present,
and the use case of the HEVC decoder is fairly limited.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
63ab0a41f9 drm/vc4: Add support for color encoding on YUV planes
Adds signalling for BT601/709/2020, and limited/full range
(on BT601).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Chris Miller
3785873ee2 drm: vc4_dsi: Fix DMA channel and memory leak in vc4 (#3012)
Signed-off-by: Chris G Miller <chris@creative-electronics.net>
2019-09-17 11:20:11 +01:00
Phil Elwell
da5e9d74f4 drm/vc4: Ignore HVS unless initialised
An upstream commit to report HVS underruns causes VC4 in firmware KMS
mode to cross into the HVS side, where it crashes due to a NULL hvs
pointer.

Make the underrun masking conditional on the hvs pointer being
initialised.

Fixes: 531a1b622d ("drm/vc4: Report HVS underrun errors")

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
28365453f2 drm/vc4: Limit fkms to modes <= 85Hz
Selecting 1080p100 and 120 has very limited gain, but don't want
to block VGA85 and similar.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:11 +01:00
Dave Stevenson
0ddf0d6683 drm/vc4: In FKMS look at the modifiers correctly for SAND
Incorrect masking was used in the switch for the modifier,
therefore for SAND (which puts the column pitch in the
modifier) it didn't match.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
0540b8343e drm: vc4: Add status of which display is updated through vblank
Previously multiple  displays were slaved off the same SMI
interrupt, triggered by HVS channel 1 (HDMI0).
This doesn't work if you only have a DPI or DSI screen (HVS channel
0), and gives slightly erroneous results with dual HDMI as the
events for HDMI1 are incorrect.

Use SMIDSW0 and SMIDSW1 registers to denote which display has
triggered the vblank.
Handling should be backwards compatible with older firmware.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
61678e5095 drm/vc4: Remove 340MHz clock limit from FKMS now scrambling issues resolved
Firmware TMDS scrambling is now being correctly configured, so
we can use it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
cc60ff4e84 drm/vc4: Fix T-format modifiers in FKMS.
The wrong vc_image formats were being checked for in the switch
statement. Correct these.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
211de22f65 drm/vc4: Max resolution of 7680 is conditional on being Pi4
The max resolution had been increased from 2048 to 7680 for all
platforms. This code is common with Pi0-3 which have a max render
target for GL of 2048, therefore the increased resolution has to
be conditional on the platform.
Switch based on whether the bcm2835-v3d node is found, as that is
not present on Pi4. (There is a potential configuration on Pi0-3
with no v3d, but this is very unlikely).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
eadec28cce drm/vc4: fkms to query the VPU for HDMI clock limits
The VPU has configured clocks for 4k (or not) via config.txt,
and will limit the choice of video modes based on that.
Make fkms query it for these limits too to avoid selecting modes
that can not be handled by the current clock setup.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
e739ec2598 drm/vc4: Correct SAND support for FKMS.
It was accepting NV21 which doesn't map through, but
also wasn't advertising the modifier so nothing would know
to request it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
4811319abe drm: vc4: Fixup typo when setting HDMI aspect ratio
Assignment was to the wrong structure.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
75c64a2d80 drm/vc4: Support the VEC in FKMS
Extends the DPI/DSI support to also report the VEC output
which supports interlacing too.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Jonathan Bell
8f5e1acf41 drm: vc4: handle the case where there are no available displays
It's reasonable for the firmware to return zero as the number of
attached displays. Handle this case as otherwise drm thinks that
the DSI panel is attached, which is nonsense.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
febbddb9d1 drm: vc4: Probe DPI/DSI timings from the firmware
For DPI and DSI displays query the firmware as to the configuration
and add it as the only mode for DRM.

In theory we can add plumbing for setting the DPI/DSI mode from
KMS, but this is not being added at present as the support frameworks
aren't present in the firmware.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
b49ab1ff08 drm: vc4-firmware-kms: Fix DSI display support
The mode was incorrectly listed as interlaced, which was then
rejected.
Correct this and FKMS works with the DSI display.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:10 +01:00
Dave Stevenson
5ec20dd570 drm: vc4: Log flags in fkms mode set
The flags contain info such as limited/full range RGB, aspect
ratio, and a fwe other useful things.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
f4acb58b8c drm: vc4-firmware-kms: Remove incorrect overscan support.
The overscan support was required for the old mailbox API
in order to match up the cursor and frame buffer planes.
With the newer API directly talking to dispmanx there is no
difference, therefore FKMS does not need to make any
adjustments.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
307eb6fb52 drm: vc4: FKMS reads the EDID from fw, and supports mode setting
This extends FKMS to read the EDID from the display, and support
requesting a particular mode via KMS.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
099bbf0362 drm: vc4: Increase max_width/height to 7680.
There are some limits still being investigated that stop
us going up to 8192, but 7680 is sufficient for dual 4k
displays.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
eee1dc05dd drm: vc4: Bring fkms into line with kms in blocking doublescan modes
Implement vc4_crtc_mode_valid so that it blocks doublescan modes

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
a689afa501 drm: vc4: Iterate over all planes in vc4_crtc_[dis|en]able
Fixes a FIXME where the overlay plane wouldn't be restored.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
f788940a5b drm: vc4: Remove unused vc4_fkms_cancel_page_flip function
"32a3dbe drm/vc4: Nuke preclose hook" removed vc4_cancel_page_flip,
but vc4_fkms_cancel_page_flip was still be added to with the
fkms driver, even though it was never called.
Nuke it too.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
3b1745681b drm: vc4: Add support for H & V flips on each plane for FKMS
They are near zero cost options for the HVS, therefore they
may as well be implemented, and it allows us to invert the
DSI display.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
e8356982f3 drm: vc4: Need to call drm_crtc_vblank_[on|off] from vc4_crtc_[en|dis]able
vblank needs to be enabled and disabled by the driver to avoid the
DRM framework complaining in the kernel log.

vc4_fkms_disable_vblank needs to signal that we don't want vblank
callbacks too.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
5cb569dc91 drm/vc4: Set the display number when querying the display resolution
Without this the two displays got set to the same resolution.
(Requires a firmware bug fix to work).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
346a76050a drm: vc4: Query the display ID for each display in FKMS
Replace the hard coded list of display IDs for a mailbox call
that returns the display ID for each display that has been
detected.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
51734288cc drm: vc4: Remove now unused structure.
Cleaning up structure that was unused after
fbb59a2 drm: vc4: Add an overlay plane to vc4-firmware-kms

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:09 +01:00
Dave Stevenson
7878e7115c drm: vc4: Select display to blank during initialisation
Otherwise the rainbow splash screen remained in the display list

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Dave Stevenson
66b56be0b3 drm: vc4: Fix build warning
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Dave Stevenson
0e2dfc4f87 drm: vc4: Add support for multiple displays to fkms
There is a slightly nasty hack in that all crtcs share the
same SMI interrupt from the firmware. This seems to currently
work well enough, but ought to be fixed at a later date.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Dave Stevenson
078a9a1b54 drm: vc4: Increase max screen size to 4096x4096.
We now should support 4k screens, therefore this limit needs to
be increased.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Dave Stevenson
e9cdfef029 drm: vc4: Add an overlay plane to vc4-firmware-kms
This uses a new API that is exposed via the mailbox service
to stick an element straight on the screen using DispmanX.

The primary and cursor planes have also been switched to using
the new plane API, and it supports layering based on the DRM
zpos parameter.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Dave Stevenson
c7f54ad58e gpu: vc4-fkms: Switch to the newer mailbox frame buffer API.
The old mailbox FB API was ideally deprecated but still used by
the FKMS driver.
Update to the newer API.

NB This needs current firmware that accepts ARM allocated buffers
through the newer API.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:08 +01:00
Eric Anholt
d01d5df752 drm/vc4: Fix vblank timestamping for firmwarekms.
The core doesn't expect a false return from the scanoutpos function in
normal usage, so we were doing the precise vblank timestamping path
and thus "immediate" vblank disables (even though firmwarekms can't
actually disable vblanks interrupts, sigh), and the kernel would get
confused when getting timestamp info when also turning vblanks back
on.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:08 +01:00
Eric Anholt
bd70099ca3 drm/vc4: Expose the format modifiers for firmware kms.
This should technically not expose VC4_T_TILED on pi4.  However, if we
don't expose anything, then userspace will assume that display can
handle whatever modifiers 3d can do (UIF on 2711).  By exposing a
list, that will get intersected with what 3D can do so that we get T
tiling for display on 2710 and linear on 2711.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:08 +01:00
Eric Anholt
6a87f0b017 drm/vc4: Fix synchronization firmwarekms against GL rendering.
We would present the framebuffer immediately without waiting for
rendering to finish first, resulting in stuttering and flickering as a
window was dragged around when the GPU was busy enough to not just win
the race.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:08 +01:00
Eric Anholt
e6d373bb54 drm/v3d: Hook up the runtime PM ops.
In translating the runtime PM code from vc4, I missed the ".pm"
assignment to actually connect them up.  Fixes missing MMU setup if
runtime PM resets V3D.

Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit ca197699af29baa8236c74c53d4904ca8957ee06)
2019-09-17 11:20:08 +01:00
Eric Anholt
067e1d0aff drm/v3d: Skip MMU flush if the device is currently off.
If it's off, we know it will be reset on poweron, so the MMU won't
have any TLB cached from before this point.  Avoids failed waits for
MMU flush to reply.

Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 3ee4e2e0a9e9587eacbb69b067bbc72ab2cdc47b)
2019-09-17 11:20:08 +01:00
Eric Anholt
a772e9dac4 drm/v3d: Add support for 2711.
Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:08 +01:00
Eric Anholt
e6064eee5a drm/vc4: Fix oops at boot with firmwarekms on 4.19.
Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:07 +01:00
Phil Elwell
7ec36c1f84 arm: bcm2835: Add bcm2838 compatible string.
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Jonathan Bell
0347d40d47 usbhid: call usb_fixup_endpoint after mangling intervals
Lets the mousepoll override mechanism work with xhci.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Jonathan Bell
8facff2b38 xhci: implement xhci_fixup_endpoint for interval adjustments
Must be called in a non-atomic context, after the endpoint
has been registered with the hardware via xhci_add_endpoint
and before the first URB is submitted for the endpoint.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Jonathan Bell
222cd59552 usb: add plumbing for updating interrupt endpoint interval state
xHCI caches device and endpoint data after the interface is configured,
so an explicit command needs to be issued for any device driver wanting
to alter the polling interval of an endpoint.

Add usb_fixup_endpoint() to allow drivers to do this. The fixup must be
called after calculating endpoint bandwidth requirements but before any
URBs are submitted.

If polling intervals are shortened, any bandwidth reservations are no
longer valid but in practice polling intervals are only ever relaxed.

Limit the scope to interrupt transfers for now.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Stefan Wahren
b8bf68251a HACK: clk-bcm2835: Add BCM2838_CLOCK_EMMC2 support
The new BCM2838 supports an additional emmc2 clock. So add a new
compatible to register this clock only for BCM2838.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
2019-09-17 11:20:07 +01:00
Eric Anholt
34027be5a1 clk: bcm2835: Allow reparenting leaf clocks while they're running.
This falls under the same "we can reprogram glitch-free as long as we
pause generation" rule as updating the div/frac fields.  This can be
used for runtime reclocking of V3D to manage power leakage.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:07 +01:00
Eric Anholt
47ad87c736 clk: bcm2835: Add support for setting leaf clock rates while running.
As long as you wait for !BUSY, you can do glitch-free updates of clock
rate while the clock is running.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:07 +01:00
Phil Elwell
b55ec03bef config: Permit LPAE and PCIE_BRCMSTB on BCM2835 2019-09-17 11:20:07 +01:00
James Hughes
1ff942f696 Pulled in the multi frame buffer support from the Pi3 repo 2019-09-17 11:20:07 +01:00
Dave Stevenson
9d17706df6 staging: vcsm-cma: Fixup the alloc code handling of kernel_id
The allocation code had been copied in from an old branch prior
to having added the IDR for 64bit support. It was therefore pushing
a pointer into the kernel_id field instead of an IDR handle, the
lookup therefore failed, and we never released the buffer.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Dave Stevenson
7d70fd8ecc staging: vcsm-cma: Drop logging level on messages in vc_sm_release_resource
They weren't errors but were logged as such.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:07 +01:00
Dave Stevenson
7d7d7bcb49 staging: vcsm-cma: Alter dev node permissions to 0666
Until the udev rules are updated, open up access to this node by
default.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Dave Stevenson
61f54bef7b staging: vcsm-cma: Add cache control ioctls
The old driver allowed for direct cache manipulation and that
was used by various clients. Replicate here.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Dave Stevenson
a24a46689c staging: vc-sm-cma: Add in userspace allocation API
Replacing the functionality from the older vc-sm driver,
add in a userspace API that allows allocation of buffers,
and importing of dma-bufs.
The driver hands out dma-buf fds, therefore much of the
handling around lifespan and odd mmaps from the old driver
goes away.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Dave Stevenson
d88b49ef7c staging: vc-sm-cma: Update TODO.
The driver is already a platform driver, so that can be
deleted from the TODO.
There are no known issues that need to be resolved.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Dave Stevenson
09d575425c staging: vc-sm-cma: Add in allocation for VPU requests.
Module has to change from tristate to bool as all CMA functions
are boolean.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Dave Stevenson
44e0fdf041 staging: vc-sm-cma: Remove obsolete comment and make function static
Removes obsolete comment about wanting to pass a function
pointer into mmal-vchiq as we now do.
As the function is passed as a function pointer, the function itself
can be static.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Eric Anholt
d374e5f1bc soc: bcm: bcm2835-pm: Add support for 2711.
Without the actual power management part any more, there's a lot less
to set up for V3D.  We just need to clear the RSTN field for the power
domain, and expose the reset controller for toggling it again.

This is definitely incomplete -- the old ISP and H264 is in the old
bridge, but since we have no consumers of it I've just done the
minimum to get V3D working.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:20:06 +01:00
Phil Elwell
7734f96b94 clk-bcm2835: Don't wait for pllh lock
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Jonathan Bell
ccc3318ad6 drivers: char: add chardev for mmap'ing Argon control registers
Based on the gpiomem driver, allow mapping of the decoder register
spaces such that userspace can access control/status registers.
This driver is intended for use with a custom ffmpeg backend accelerator
prior to a v4l2 driver being written.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Martin Sperl
4a7c1b19a4 spi: bcm2835: enable shared interrupt support
Add shared interrupt support for this driver.

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
2019-09-17 11:20:06 +01:00
Tim Gover
6f37cd65db pinctrl-bcm2835: Add support for BCM2838
GPIO configuration on BCM2838 is largely the same as BCM2835 except for
the pull up/down configuration. The old mechanism has been replaced
by new registers which don't require the fixed delay.

Detect BCN2838 at run-time and use the new mechanism. Backwards
compatibility for the device-tree configuration has been retained.
2019-09-17 11:20:06 +01:00
Phil Elwell
c864b9ac47 usb: xhci: Show that the VIA VL805 supports LPM
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:06 +01:00
Tim Gover
8334a2e05c usb: xhci: Disable the XHCI 5 second timeout
If the VL805 EEPROM has not been programmed then boot will hang for five
seconds. The timeout seems to be arbitrary and is an unecessary
delay on the first boot. Remove the timeout.

This is common code and probably can't be upstreamed unless the timeout
can be configurable somehow or perhaps the XHCI driver can be skipped
on the first boot.
2019-09-17 11:20:06 +01:00
Jonathan Bell
4b5f41ab6e phy: bcm54213pe: configure the LED outputs to be more user-friendly
The default state was both LEDs indicating link speed.

Change the default configuration to
- Amber: 1000/100 link speed indication
- Green: link present + activity indication

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Jonathan Bell
dead1f7b1d phy: broadcom: split out the BCM54213PE from the BCM54210E IDs
The last nibble is a revision ID, and the 54213pe is a later rev
than the 54210e. Running the 54210e setup code on a 54213pe results
in a broken RGMII interface.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Jonathan Bell
e78d71574b net: genet: enable link energy detect powerdown for external PHYs
There are several warts surrounding bcmgenet_mii_probe() as this
function is called from ndo_open, but it's calling registration-type
functions. The probe should be called at probe time and refactored
such that the PHY device data can be extracted to limit the scope
of this flag to Broadcom PHYs.

For now, pass this flag in as it puts our attached PHY into a low-power
state when disconnected.

Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Phil Elwell
b60f233a48 bcmgenet: Better coalescing parameter defaults
Set defaults for TX and RX packet coalescing to be equivalent to:

  # ethtool -C eth0 tx-frames 10
  # ethtool -C eth0 rx-usecs 50

This may be something we want to set via DT parameters in the
future.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Jonathan Bell
c5b2a9b52c bcmgenet: constrain max DMA burst length 2019-09-17 11:20:05 +01:00
popcornmix
c4253739cd bcm2835-pcm.c: Support multichannel audio 2019-09-17 11:20:05 +01:00
Phil Elwell
bc771e77c6 vchiq: Add 36-bit address support
Conditional on a new compatible string, change the pagelist encoding
such that the top 24 bits are the pfn, leaving 8 bits for run length
(-1).

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Stefan Wahren
85c850dbfb thermal: brcmstb_thermal: Add BCM2838 support
The BCM2838 has an AVS TMON hardware block. This adds the necessary
support to the brcmstb_thermal driver ( no trip handling ).

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
2019-09-17 11:20:05 +01:00
Stefan Wahren
780ebe5641 hwrng: iproc-rng200: Add BCM2838 support
The HWRNG on the BCM2838 is compatible to iproc-rng200, so add the
support to this driver instead of bcm2835-rng.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
2019-09-17 11:20:05 +01:00
Stefan Wahren
1aa159351e mmc: sdhci-iproc: Add support for emmc2 of the BCM2838
The emmc2 interface of the BCM2838 should be integrated in sdhci-iproc
to avoid code redundancy. Except 32 bit only access no other quirks are
known yet. Add an additional compatible string for upstream proposal.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
2019-09-17 11:20:05 +01:00
Phil Elwell
cc979fdcae mmc: sdhci: Mask "spurious" interrupts
Add a filter for "spurious" Transfer Complete interrupts, attempting
to make it as specific as possible:
* INT_DATA_END (transfer complete) is set
* There is a stop command in progress
* There is no data transfer in progress

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:05 +01:00
Phil Elwell
8d48dfa964 mmc: bcm2835-sdhost: Support 64-bit physical addresses
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Phil Elwell
98437a9a04 arm: bcm2835: DMA can only address 1GB
The legacy peripherals can only address the first gigabyte of RAM, so
ensure that DMA allocations are restricted to that region.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Phil Elwell
a75622fa27 pcie-brcmstb: Changes for BCM2711
The initial brcmstb PCIe driver - originally taken from the V3(?)
patch set - has been modified significantly for the BCM2711.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Jim Quinlan
d852e15503 dt-bindings: pci: Add DT docs for Brcmstb PCIe device
The DT bindings description of the Brcmstb PCIe device is described.  This
node can be used by almost all Broadcom settop box chips, using
ARM, ARM64, or MIPS CPU architectures.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
2019-09-17 11:20:04 +01:00
Phil Elwell
2c7a440999 PCI: brcmstb: Add MSI capability
This commit adds MSI to the Broadcom STB PCIe host controller. It does
not add MSIX since that functionality is not in the HW.  The MSI
controller is physically located within the PCIe block, however, there
is no reason why the MSI controller could not be moved elsewhere in
the future.

Since the internal Brcmstb MSI controller is intertwined with the PCIe
controller, it is not its own platform device but rather part of the
PCIe platform device.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
2019-09-17 11:20:04 +01:00
Phil Elwell
9f7d09014d PCI: brcmstb: Add dma-range mapping for inbound traffic
The Broadcom STB PCIe host controller is intimately related to the
memory subsystem.  This close relationship adds complexity to how cpu
system memory is mapped to PCIe memory.  Ideally, this mapping is an
identity mapping, or an identity mapping off by a constant.  Not so in
this case.

Consider the Broadcom reference board BCM97445LCC_4X8 which has 6 GB
of system memory.  Here is how the PCIe controller maps the
system memory to PCIe memory:

  memc0-a@[        0....3fffffff] <=> pci@[        0....3fffffff]
  memc0-b@[100000000...13fffffff] <=> pci@[ 40000000....7fffffff]
  memc1-a@[ 40000000....7fffffff] <=> pci@[ 80000000....bfffffff]
  memc1-b@[300000000...33fffffff] <=> pci@[ c0000000....ffffffff]
  memc2-a@[ 80000000....bfffffff] <=> pci@[100000000...13fffffff]
  memc2-b@[c00000000...c3fffffff] <=> pci@[140000000...17fffffff]

Although there are some "gaps" that can be added between the
individual mappings by software, the permutation of memory regions for
the most part is fixed by HW.  The solution of having something close
to an identity mapping is not possible.

The idea behind this HW design is that the same PCIe module can
act as an RC or EP, and if it acts as an EP it concatenates all
of system memory into a BAR so anything can be accessed.  Unfortunately,
when the PCIe block is in the role of an RC it also presents this
"BAR" to downstream PCIe devices, rather than offering an identity map
between its system memory and PCIe space.

Suppose that an endpoint driver allocs some DMA memory.  Suppose this
memory is located at 0x6000_0000, which is in the middle of memc1-a.
The driver wants a dma_addr_t value that it can pass on to the EP to
use.  Without doing any custom mapping, the EP will use this value for
DMA: the driver will get a dma_addr_t equal to 0x6000_0000.  But this
won't work; the device needs a dma_addr_t that reflects the PCIe space
address, namely 0xa000_0000.

So, essentially the solution to this problem must modify the
dma_addr_t returned by the DMA routines routines.  There are two
ways (I know of) of doing this:

(a) overriding/redefining the dma_to_phys() and phys_to_dma() calls
that are used by the dma_ops routines.  This is the approach of

	arch/mips/cavium-octeon/dma-octeon.c

In ARM and ARM64 these two routines are defiend in asm/dma-mapping.h
as static inline functions.

(b) Subscribe to a notifier that notifies when a device is added to a
bus.  When this happens, set_dma_ops() can be called for the device.
This method is mentioned in:

    http://lxr.free-electrons.com/source/drivers/of/platform.c?v=3.16#L152

where it says as a comment

    "In case if platform code need to use own special DMA
    configuration, it can use Platform bus notifier and
    handle BUS_NOTIFY_ADD_DEVICE event to fix up DMA
    configuration."

Solution (b) is what this commit does.  It uses its own set of
dma_ops which are wrappers around the arch_dma_ops.  The
wrappers translate the dma addresses before/after invoking
the arch_dma_ops, as appropriate.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
2019-09-17 11:20:04 +01:00
Phil Elwell
aef7cf9ea4 PCI: brcmstb: Add Broadcom STB PCIe host controller driver
This commit adds the basic Broadcom STB PCIe controller.  Missing is
the ability to process MSI and also handle dma-ranges for inbound
memory accesses.  These two functionalities are added in subsequent
commits.

The PCIe block contains an MDIO interface.  This is a local interface
only accessible by the PCIe controller.  It cannot be used or shared
by any other HW.  As such, the small amount of code for this
controller is included in this driver as there is little upside to put
it elsewhere.

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
2019-09-17 11:20:04 +01:00
Tim Gover
3293fe6db9 Fix copy_from_user if BCM2835_FAST_MEMCPY=n
The change which introduced CONFIG_BCM2835_FAST_MEMCPY unconditionally
changed the behaviour of arm_copy_from_user. The page pinning code
is not safe on ARMv7 if LPAE & high memory is enabled and causes
crashes which look like PTE corruption.

Make __copy_from_user_memcpy conditional on CONFIG_2835_FAST_MEMCPY=y
which is really an ARMv6 / Pi1 optimization and not necessary on newer
ARM processors.
2019-09-17 11:20:04 +01:00
Phil Elwell
e8b93bbd7a arm: bcm2835: Fix FIQ early ioremap
The ioremapping creates mappings within the vmalloc area. The
equivalent early function, create_mapping, now checks that the
requested explicit virtual address is between VMALLOC_START and
VMALLOC_END. As there is no reason to have any correlation between
the physical and virtual addresses, put the required mappings at
VMALLOC_START and above.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Phil Elwell
a83835496d bcm2835-sdhost: Fix DMA channel leak on error/remove
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Phil Elwell
8fc06681e3 w1: w1-gpio: Make GPIO an output for strong pullup
The logic to drive the data line high to implement a strong pullup
assumed that the pin was already an output - setting a value does
not change an input.

See: https://github.com/raspberrypi/firmware/issues/1143

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Dave Stevenson
e52b546fd5 staging: bcm2835-codec: Add support for setting S_PARM and G_PARM
Video encode can use the frame rate for rate control calculations,
therefore plumb it through from V4L2's [S|G]_PARM ioctl.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:04 +01:00
Dave Stevenson
acc1a57de6 staging: bcm2835-codec: Convert V4L2 nsec timestamps to MMAL usec
V4L2 uses nsecs, whilst MMAL uses usecs, but the code wasn't converting
between them. This upsets video encode rate control.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Marcel Holtmann
268014c824 Bluetooth: Check key sizes only when Secure Simple Pairing is enabled
The encryption is only mandatory to be enforced when both sides are using
Secure Simple Pairing and this means the key size check makes only sense
in that case.

On legacy Bluetooth 2.0 and earlier devices like mice the encryption was
optional and thus causing an issue if the key size check is not bound to
using Secure Simple Pairing.

Fixes: d5bb334a8e ("Bluetooth: Align minimum encryption key size for LE and BR/EDR connections")
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Cc: stable@vger.kernel.org
2019-09-17 11:20:03 +01:00
Dave Stevenson
f464a6cd07 staging: mmal-vchiq: Fix memory leak in error path
On error, vchiq_mmal_component_init could leave the
event context allocated for ports.
Clean them up in the error path.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
24caf23d4e staging: mmal-vchiq: Free the event context for control ports
vchiq_mmal_component_init calls init_event_context for the
control port, but vchiq_mmal_component_finalise didn't free
it, causing a memory leak..

Add the free call.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
9cb88f124b staging: bcm2835-codec: Remove height padding for ISP role
The ISP has no need for heights to be a multiple of macroblock
sizes, therefore doesn't require the align on the height.
Remove it for the ISP role. (It is required for the codecs).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
85730558b7 staging: bcm2835-codec: Correct port width calc for truncation
The calculation converting from V4L2 bytesperline to MMAL
width had an operator ordering issue that lead to Bayer raw 10
(and 12 and 14) setting an incorrect stride for the buffer.
Correct this operation ordering issue.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
e6bfec5bd0 staging: bcm2835-codec: Refactor default resolution code
The default resolution code was different for each role
as compressed formats need to pass bytesperline as 0 and
set up customised buffer sizes.
This is common setup, therefore amend get_sizeimage and
get_bytesperline to do the correct thing whether compressed
or uncompressed.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
d1a96bd0bd media: bcm2835-unicam: Add support for enum framesizes and frameintervals
vidioc_enum_framesizes and vidioc_enum_frameintervals weren't implemented,
therefore clients couldn't enumerate the supported resolutions.

Implement them by forwarding on to the sensor driver.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
75702e3397 staging: bcm2835_codec: Clean up logging on unloading the driver
The log line was missing a closing \n, so wasn't added to the
log immediately.
Adds the function of the V4L2 device that is being unregistered
too.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
e0c4cf259f staging: vc-sm-cma: Ensure mutex and idr are destroyed
map_lock and kernelid_map are created in probe, but not released
in release should the vcsm service not connect (eg running the
cutdown firmware).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
e26fa78054 staging: vc-sm-cma: Don't fail if debugfs calls fail.
Return codes from debugfs calls should never alter the
flow of the main code.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
59035556b8 staging: vc-sm-cma: Use devm_ allocs for sm_state.
Use managed allocations for sm_state, removing reliance on
manual management.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:03 +01:00
Dave Stevenson
84d46c189f staging: vc-sm-cma: Remove the debugfs directory on remove
Without removing that, reloading the driver fails.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
e1ce5fc02b staging: bcm2835-codec: NULL component handle on queue_setup failure
queue_setup tries creating the relevant MMAL component and configures
the input and output ports as we're expecting to start streaming.
If the port configuration failed then it destroyed the component,
but failed to clear the component handle, therefore release tried
destroying the component again.
Adds some logging should the port config fail as well.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
b119fd93e0 staging: vc_sm_cma: Remove erroneous misc_deregister
Code from the misc /dev node was still present in
bcm2835_vc_sm_cma_remove, which caused a NULL deref.
Remove it.

See #2885.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
b7f4b8217d staging: bcm2835_codec: Include timing info in SPS headers
Inserting timing information into the VUI block of the SPS is
optional with the VPU encoder.
GStreamer appears to require them when using V4L2 M2M, therefore
set the option to enable them from the encoder.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
888104b806 staging: mmal-vchiq: Update mmal_parameters.h with recently defined params
mmal_parameters.h hasn't been updated to reflect additions made
over the last few years. Update it to reflect the currently
supported parameters.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
3c6cc7f6e0 staging: bcm2835_codec: Fix handling of VB2_MEMORY_DMABUF buffers
If the queue is configured as VB2_MEMORY_DMABUF then vb2_core_expbuf
fails as it ensures the queue is defined as VB2_MEMORY_MMAP.

Correct the handling so that we unmap the buffer from vcsm and the
VPU on cleanup, and then correctly get the dma buf of the new buffer.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
a540003ab2 staging: bcm2835_codec: Add an option for ignoring Bayer formats.
This is a workaround for GStreamer currently not identifying Bayer
as a raw format, therefore any device that supports it does not
match the criteria for v4l2convert.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
430d73d62b staging: bcm2835_codec: Add support for the ISP as an M2M device
The MMAL ISP component can also use this same V4L2 wrapper to
provide a M2M format conversion and resizer.
Instantiate 3 V4L2 devices now, one for each of decode, encode,
and isp.
The ISP currently doesn't expose any controls via V4L2, but this
can be extended in the future.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
f8a0dca7d2 staging: bcm2835_codec: Query supported formats from the component
The driver was previously working with hard coded tables of
which video formats were supported by each component.
The components advertise this information via a MMAL parameter,
so retrieve the information from there during probe, and store
in the state structure for that device.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
ee14ce49c0 staging: mmal-vchiq: If the VPU returns an error, don't negate it
There is an enum for the errors that the VPU can return.
port_parameter_get was negating that value, but also using -EINVAL
from the Linux error codes.
Pass the VPU error code as positive values. Should the function
need to pass a Linux failure, then return that as negative.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
28eab80594 staging: mmal-vchiq: Always return the param size from param_get
mmal-vchiq is a reimplementation of the userland library for MMAL.
When getting a parameter, the client provides the storage and
the size of the storage. The VPU then returns the size of the
parameter that it wished to return, and as much as possible of
that parameter is returned to the client.

The implementation previously only returned the size provided
by the VPU should it exceed the buffer size. So for parameters
such as the supported encodings list the client had no idea
how much of the provided storage had been populated.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
1fb948a143 staging: mmal_vchiq: Add in the Bayer encoding formats
The list of formats was copied before Bayer support was added.
The ISP supports Bayer and is being supported by the bcm2835_codec
driver, so add in the encodings for them.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:02 +01:00
Dave Stevenson
2ecdad2324 staging: vc-sm-cma: Fix up for 64bit builds
There were a number of logging lines that were using
inappropriate formatting under 64bit kernels.

The kernel_id field passed to/from the VPU was being
abused for storing the struct vc_sm_buffer *.
This breaks with 64bit kernels, so change to using an IDR.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
633bf98917 staging: vc-sm-cma: Use a void* pointer as the handle within the kernel
The driver was using an unsigned int as the handle to the outside world,
and doing a nasty cast to the struct dmabuf when handed it back.
This breaks badly with a 64 bit kernel where the pointer doesn't fit
in an unsigned int.

Switch to using a void* within the kernel. Reality is that it is
a struct dma_buf*, but advertising it as such to other drivers seems
to encourage the use of it as such, and I'm not sure on the implications
of that.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
ef9b82917e staging: vc-sm-cma: Correct DMA configuration.
Now that VCHIQ is setting up the DMA configuration as our
parent device, don't try to configure it during probe.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
b120fe4fc7 staging: bcm2835-codec: Fix potentially uninitialised vars
src_m2m_buf and dst_m2m_buf were printed in log messages
when there are code paths that don't initialise them.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
a3d5b7ee32 staging: bcm2835-codec: variable vb2 may be used uninitialised
In op_buffer_cb, the failure path checked whether there was
an associated vb2 buffer before the variable vb2 had been
assigned.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
c10c137852 media:bcm2835-unicam: Power on subdev on open/release, not streaming
The driver was powering on the source subdevice as part of STREAMON,
and powering it off in STREAMOFF. This isn't so great if there is a
significant amount of setup required for your device.

Copy the approach taken in the Atmel ISC driver where s_power(1) is called
on first file handle open, and s_power(0) is called on the last release.

See https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=232437

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
5caf58c478 media: ov5647: Use gpiod_set_value_cansleep
All calls to the gpio library are in contexts that can sleep,
therefore there is no issue with having those GPIOs controlled
by controllers which require sleeping (eg I2C GPIO expanders).

Switch to using gpiod_set_value_cansleep instead of gpiod_set_value
to avoid triggering the warning in gpiolib should the GPIO
controller need to sleep.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
8c4fdd297d clk: clk-bcm2835: Use %zd when printing size_t
The debug text for how many clocks have been registered
uses "%d" with a size_t. Correct it to "%zd".

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
94133e729a char: vc_mem: Fix all coding style issues.
Cleans up all checkpatch errors in vc_mem.c and vc_mem.h
No functional change to the code.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
b4ad2de807 char: vc_mem: Fix up compat ioctls for 64bit kernel
compat_ioctl wasn't defined, so 32bit user/64bit kernel
always failed.
VC_MEM_IOC_MEM_PHYS_ADDR was defined with parameter size
unsigned long, so the ioctl cmd changes between sizes.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
39832be043 staging: mmal-vchiq: Fix client_component for 64 bit kernel
The MMAL client_component field is used with the event
mechanism to allow the client to identify the component for
which the event is generated.
The field is only 32bits in size, therefore we can't use a
pointer to the component in a 64 bit kernel.

Component handles are already held in an array per VCHI
instance, so use the array index as the client_component handle
to avoid having to create a new IDR for this purpose.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
d2f5289585 char: vcio: Fail probe if rpi_firmware is not found.
Device Tree is now the only supported config mechanism, therefore
uncomment the block of code that fails the probe if the
firmware node can't be found.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:01 +01:00
Dave Stevenson
f5c9e11f58 char: vcio: Add compat ioctl handling
There was no compat ioctl handler, so 32 bit userspace on a
64 bit kernel failed as IOCTL_MBOX_PROPERTY used the size
of char*.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
dfa374404f staging: vc04_services: Add a V4L2 M2M codec driver
This adds a V4L2 memory to memory device that wraps the MMAL
video decode and video_encode components for H264 and MJPEG encode
and decode, MPEG4, H263, and VP8 decode (and MPEG2 decode
if the appropriate licence has been purchased).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
5df11de31d media: videobuf2: Allow exporting of a struct dmabuf
videobuf2 only allowed exporting a dmabuf as a file descriptor,
but there are instances where having the struct dma_buf is
useful within the kernel.

Split the current implementation into two, one step which
exports a struct dma_buf, and the second which converts that
into an fd.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
5e28b4f9e7 staging: vc04_services: Use vc-sm-cma to support zero copy
With the vc-sm-cma driver we can support zero copy of buffers between
the kernel and VPU. Add this support to vchiq-mmal.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
e0b687518d staging: vc04_services: Add new vc-sm-cma driver
This new driver allows contiguous memory blocks to be imported
into the VideoCore VPU memory map, and manages the lifetime of
those objects, only releasing the source dmabuf once the VPU has
confirmed it has finished with it.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
81ef7c66c3 staging: vc04_services: Fixup vchiq-mmal include ordering
There were dependencies on including the headers in the correct
order. Fix up the headers so that they include the other
headers that they depend on themselves.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
9212780222 staging: vc04_services: Support sending data to MMAL ports
Add the ability to send data to ports. This only supports
zero copy mode as the required bulk transfer setup calls
are not done.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
30bbcf9012 staging: mmal-vchiq: Add support for event callbacks.
(Preparation for the codec driver).
The codec uses the event mechanism to report things such as
resolution changes. It is signalled by the cmd field of the buffer
being non-zero.

Add support for passing this information out to the client.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
e988837704 staging: mmal-vchiq: Make a mmal_buf struct for passing parameters
The callback from vchi_mmal to the client was growing lots of extra
parameters. Consolidate them into a single struct instead of
growing the list further.
The struct is associated with the client buffer, therefore there
are various changes to setup various containers for the struct,
and pass the appropriate members.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
3cc44b7f39 staging: mmal-vchiq: Make timeout a defined parameter
The timeout period for VPU communications is a useful thing
to extend when debugging.
Set it via a define, rather than a magic number buried in the code.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
4115c74e3d staging: mmal-vchiq: Avoid use of bool in structures
Fixes up a checkpatch error "Avoid using bool structure members
because of possible alignment issues".

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
f978275c99 staging: mmal-vchiq: Allocate and free components as required
The existing code assumed that there would only ever be 4 components,
and never freed the entries once used.
Allow arbitrary creation and destruction of components.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:20:00 +01:00
Dave Stevenson
9865da7342 staging: vc04_services: Split vchiq-mmal into a module
In preparation for adding a video codec V4L2 module which also
wants to use vchiq-mmal functions, split it out into an
independent module.
The minimum number of changes have been made to achieve this
(eg straight moves where possible) so existing checkpatch
errors will still be present.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
c7744300ae staging: bcm2835-camera: Ensure timestamps never go backwards.
There is an awkward situation with H264 header bytes. Currently
they are returned with a PTS of 0 because they aren't associated
with a timestamped frame to encode. These are handled by either
returning the timestamp of the last buffer to have been received,
or in the case of the first buffer the timestamp taken at
start_streaming.
This results in a race where the current frame may have started
before we take the start time, which results in the first encoded
frame having an earlier timestamp than the header bytes.

Ensure that we never return a negative delta to the user by checking
against the previous timestamp.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
665f41ba52 staging: bcm2835-camera: Fix logical continuation splits
Fix checkpatch errors for "Logical continuations should be
on the previous line".

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Stefan Wahren
1ba9ed60ce staging: vchiq_arm: Fix platform device unregistration
In error case platform_device_register_data would return an ERR_PTR
instead of NULL. So we better check this before unregistration.

Fixes: 37b7b3087a ("staging/vc04_services: Register a platform device for the camera driver.")
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
2019-09-17 11:19:59 +01:00
Dave Stevenson
00d7c97d0a media: tc358743: Return an appropriate colorspace from tc358743_set_fmt
When calling tc358743_set_fmt, the code was calling tc358743_get_fmt
to choose a valid format. However that sets the colorspace
based on what was read back from the chip. When you set the format,
then the driver would choose and program the colorspace based
on the format code.

The result was that if you called try or set format for UYVY
when the current format was RGB3 then you would get told sRGB,
and try RGB3 when current was UYVY and you would get told
SMPTE170M.

The value programmed into the chip is determined by this driver,
therefore there is no need to read back the value. Return the
colorspace based on the format set/tried instead.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
cb6e7e21e7 media: bcm2835-unicam: Pass through the colorspace on try_fmt
The current colorspace was always returned from try_fmt for no
good reason.
Return what the source subdevice returns instead.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
ecb83c60e5 MAINTAINERS: Add entry for BCM2835 Unicam driver
Adds entry for the new BCM2835 Unicam (CSI-2 receiver) driver

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
77a6f5413c media: bcm2835-unicam: Driver for CCP2/CSI2 camera interface
Add driver for the Unicam camera receiver block on
BCM283x processors.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
a5c25dec96 dt-bindings: Document BCM283x CSI2/CCP2 receiver
Document the DT bindings for the CSI2/CCP2 receiver peripheral
(known as Unicam) on BCM283x SoCs.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
Acked-by: Rob Herring <robh@kernel.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
b2f4c94175 media: videodev2: Add helper defines for printing FOURCCs
New helper defines that allow printing of a FOURCC using
printf(V4L2_FOURCC_CONV, V4L2_FOURCC_CONV_ARGS(fourcc));

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
91d0ea6964 media: adv7180: Add YPrPb support for ADV7282M
The ADV7282M can support YPbPr on AIN1-3, but this was
not selectable from the driver. Add it to the list of
supported input modes.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
cb2a0c534f media: adv7180: Default to the first valid input
The hardware default is differential CVBS on AIN1 & 2, which
isn't very useful.

Select the first input that is defined as valid for the
chip variant (typically CVBS_AIN1).

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:59 +01:00
Dave Stevenson
dd6df047cc media: tc358743: Check I2C succeeded during probe.
The probe for the TC358743 reads the CHIPID register from
the device and compares it to the expected value of 0.
If the I2C request fails then that also returns 0, so
the driver loads thinking that the device is there.

Generally I2C communications are reliable so there is
limited need to check the return value on every transfer,
therefore only amend the one read during probe to check
for I2C errors.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Dave Stevenson
86c358cc27 media: tc358743: Add support for 972Mbit/s link freq.
Adds register setups for running the CSI lanes at 972Mbit/s,
which allows 1080P50 UYVY down 2 lanes.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Philipp Zabel
9acccafc0c media: tc358743: fix connected/active CSI-2 lane reporting
g_mbus_config was supposed to indicate all supported lane numbers, not
only the number of those currently in active use. Since the TC358743
can dynamically reduce the number of active lanes if the required
bandwidth allows for it, report all lane numbers up to the connected
number of lanes as supported in pdata mode.
In device tree mode, do not report lane count and clock mode at all, as
the receiver driver can determine these from the device tree.

To allow communicating the number of currently active lanes, add a new
bitfield to the v4l2_mbus_config flags. This is a temporary fix, to be
used only until a better solution is found.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2019-09-17 11:19:58 +01:00
Dave Stevenson
598bb0c643 media: tc358743: Increase FIFO level to 374.
The existing fixed value of 16 worked for UYVY 720P60 over
2 lanes at 594MHz, or UYVY 1080P60 over 4 lanes. (RGB888
1080P60 needs 6 lanes at 594MHz).
It doesn't allow for lower resolutions to work as the FIFO
underflows.

374 is required for 1080P24-30 UYVY over 2 lanes @ 972Mbit/s, but
>374 means that the FIFO underflows on 1080P50 UYVY over 2 lanes
@ 972Mbit/s.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Dave Stevenson
6acb9f331e media: ov5647: Add support for non-continuous clock mode
The driver was only supporting continuous clock mode
although this was not stated anywhere.
Non-continuous clock saves a small amount of power and
on some SoCs is easier to interface with.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Dave Stevenson
9828b3d610 media: ov5647: Add support for PWDN GPIO.
Add support for an optional GPIO connected to PWDN on the sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Dave Stevenson
1071ab8313 [media] Documentation: DT: add device tree for PWDN control
Add optional GPIO pwdn to connect to the PWDN line on the sensor.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Dave Stevenson
cc75ca0967 media: ov5647: Add set_fmt and get_fmt calls.
There's no way to query the subdevice for the supported
resolutions.
Add set_fmt and get_fmt implementations.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:58 +01:00
Klaus Schulz
518eebb54a sound: pcm512x-codec: Adding 352.8kHz samplerate support 2019-09-17 11:19:58 +01:00
IQaudIO
edb26a1704 Added IQaudIO Pi-Codec board support (#2969)
Add support for the IQaudIO Pi-Codec board.

Signed-off-by: Gordon <gordon@iqaudio.com>

Fixed 48k timing issue
2019-09-17 11:19:58 +01:00
P33M
f7ff81f08b lan78xx: use default alignment for rx buffers
The lan78xx uses a 12-byte hardware rx header, so there is no need
to allocate SKBs with NET_IP_ALIGN set. Removes alignment faults
in both dwc_otg and in ipv6 processing.
2019-09-17 11:19:58 +01:00
Phil Elwell
545bc4b031 sound: Fixes for audioinjector-octo under 4.19
1. Move the DT alias declaration to the I2C shim in the cases
where the shim is enabled. This works around a problem caused by a
4.19 commit [1] that generates DT/OF uevents for I2C drivers.

2. Fix the diagnostics in an error path of the soundcard driver to
correctly identify the reason for the failure to load.

3. Move the declaration of the clock node in the overlay outside
the I2C node to avoid warnings.

4. Sort the overlay nodes so that dependencies are only to earlier
fragments, in an attempt to get runtime dtoverlay application to
work (it still doesn't...)

See: https://github.com/Audio-Injector/Octo/issues/14
Signed-off-by: Phil Elwell <phil@raspberrypi.org>

[1] af503716ac ("i2c: core: report OF style module alias for devices registered via OF")
2019-09-17 11:19:58 +01:00
FERHAT Nicolas
271da4a156 Audiophonics I-Sabre 9038Q2M DAC driver
Signed-off-by: Audiophonics <contact@audiophonics.fr>
2019-09-17 11:19:57 +01:00
Phil Howard
124ffc3b1f rtc: rv3028: Add backup switchover mode support
Signed-off-by: Phil Howard <phil@pimoroni.com>
2019-09-17 11:19:57 +01:00
Dave Stevenson
1ca156c875 drm: vc4: Programming the CTM is conditional on running full KMS
vc4_ctm_commit writes to HVS registers, so this is only applicable
when in full KMS mode, not in firmware KMS mode. Add this conditional.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:57 +01:00
Phil Elwell
e82fcb7768 bcm2835-dma: Add support for per-channel flags
Add the ability to interpret the high bits of the dreq specifier as
flags to be included in the DMA_CS register. The motivation for this
change is the ability to set the DISDEBUG flag for SD card transfers
to avoid corruption when using the VPU debugger.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:57 +01:00
Dave Stevenson
51382445b6 gpu: vc4_firmware_kms: Fix up 64 bit compile warnings.
Resolve two build warnings with regard using incorrectly
sized parameters in logging messages on 64 bit builds.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:57 +01:00
popcornmix
3db0bf04ed Revert "staging: bcm2835-audio: Drop DT dependency"
This reverts commit b7491a9fca.
2019-09-17 11:19:57 +01:00
Phil Elwell
1e57679f81 Revert "staging: vchiq: delete vchiq_killable.h"
This reverts commit 2da56630b1.
2019-09-17 11:19:57 +01:00
Phil Elwell
45a6af3f0a lan78xx: EEE support is now a PHY property
Now that EEE support is a property of the PHY, use the PHY's DT node
when querying the EEE-related properties.

See: https://github.com/raspberrypi/linux/issues/2882

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:57 +01:00
Phil Elwell
de66db02b6 configs: Enable the AD193x codecs
See: https://github.com/raspberrypi/linux/issues/2850

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:57 +01:00
Serge Schneider
ceef490ef1 mfd: Add rpi_sense_core of compatible string 2019-09-17 11:19:57 +01:00
HiFiBerry
e8b613d7d7 Added driver for the HiFiBerry DAC+ ADC (#2694)
Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>

hifiberry_dacplusadc: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:57 +01:00
Phil Elwell
36861fe0d4 spi: spi-bcm2835: Disable forced software CS
With GPIO CS used by the DTBs, allow hardware CS to be selected by an
overlay.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:57 +01:00
Phil Elwell
a306498a94 spi: spi-bcm2835: Re-enable HW CS
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:57 +01:00
b-ak
fedbb9f7b4 ASoC: Add support for AudioSense-Pi add-on soundcard
AudioSense-Pi is a RPi HAT based on a TI's TLV320AIC32x4 stereo codec

This hardware provides multiple audio I/O capabilities to the RPi.
The codec connects to the RPi's SoC through the I2S Bus.

The following devices can be connected through a 3.5mm jack
	1. Line-In: Plain old audio in from mobile phones, PCs, etc.,
	2. Mic-In: Connect a microphone
	3. Line-Out: Connect the output to a speaker
	4. Headphones: Connect a Headphone w or w/o microphones

Multiple Inputs:
	It supports the following combinations
	1. Two stereo Line-Inputs and a microphone
	2. One stereo Line-Input and two microphones
	3. Two stereo Line-Inputs, a microphone and
		one mono line-input (with h/w hack)
	4. One stereo Line-Input, two microphones and
		one mono line-input (with h/w hack)

Multiple Outputs:
	Audio output can be routed to the headphones or
		speakers (with additional hardware)

Signed-off-by: b-ak <anur.bhargav@gmail.com>
2019-09-17 11:19:56 +01:00
Joshua Emele
08c58a7492 lan78xx: Debounce link events to minimize poll storm
The bInterval is set to 4 (i.e. 8 microframes => 1ms) and the only bit
that the driver pays attention to is "link was reset". If there's a
flapping status bit in that endpoint data, (such as if PHY negotiation
needs a few tries to get a stable link) then polling at a slower rate
would act as a de-bounce.

See: https://github.com/raspberrypi/linux/issues/2447
2019-09-17 11:19:56 +01:00
Ezekiel Bethel
4cd1ceae0a bcm2835_smi: re-add dereference to fix DMA transfers 2019-09-17 11:19:56 +01:00
Dave Stevenson
519a437690 firmware: raspberrypi: Report the fw git hash during probe
The firmware can now report the git hash from which it was built
via the mailbox, so report it during probe.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:56 +01:00
Dave Stevenson
de9f0908ca firmware: raspberrypi: Report the fw variant during probe
The driver already reported the firmware build date during probe.
The mailbox calls have been extended to also report the variant
 1 = standard start.elf
 2 = start_x.elf (includes camera stack)
 3 = start_db.elf (includes assert logging)
 4 = start_cd.elf (cutdown version for smallest memory footprint).
Log the variant during probe.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:56 +01:00
Dave Stevenson
625ee0e75f staging: bcm2835-camera: Ensure H264 header bytes get a sensible timestamp
H264 header come from VC with 0 timestamps, which means they get a
strange timestamp when processed with VC/kernel start times,
particularly if used with the inline header option.
Remember the last frame timestamp and use that if set, or otherwise
use the kernel start time.

https://github.com/raspberrypi/linux/issues/1836

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:56 +01:00
Phil Elwell
5232d9ce71 net: lan78xx: Support auto-downshift to 100Mb/s
Ethernet cables with faulty or missing pairs (specifically pairs C and
D) allow auto-negotiation to 1000Mbs, but do not support the successful
establishment of a link. Add a DT property, "microchip,downshift-after",
to configure the number of auto-negotiation failures after which it
falls back to 100Mbs. Valid values are 2, 3, 4, 5 and 0, where 0 means
never downshift.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:56 +01:00
Matthias Reichl
656ae9e10f rpi-wm8804-soundcard: configure wm8804 clocks only on rate change
This should avoid clicks when stopping and immediately afterwards
starting a stream with the same samplerate as before.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:56 +01:00
Matthias Reichl
bc445e2641 rpi-wm8804-soundcard: drop PWRDN register writes
Since kernel 4.0 the PWRDN register bits are under DAPM
control from the wm8804 driver.

Drop code that modifies that register to avoid interfering
with DAPM.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:56 +01:00
Phil Elwell
f58e43e8fa lan78xx: disable interrupts for PHY irqs
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:56 +01:00
Phil Elwell
68e287cb23 gpiolib: Don't prevent IRQ usage of output GPIOs
Upstream Linux deems using output GPIOs to generate IRQs as a bogus
use case, even though the BCM2835 GPIO controller is capable of doing
so. A number of users would like to make use of this facility, so
disable the checks.

See: https://github.com/raspberrypi/linux/issues/2527

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:56 +01:00
James Hughes
ec11a8fe3d Update issue templates (#2736) 2019-09-17 11:19:56 +01:00
Serge Schneider
e77d76e805 drivers: thermal: step_wise: avoid throttling at hysteresis temperature after dropping below it
Signed-off-by: Serge Schneider <serge@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Ram Chandrasekar
b56f104334 drivers: thermal: step_wise: add support for hysteresis
Step wise governor increases the mitigation level when the temperature
goes above a threshold and will decrease the mitigation when the
temperature falls below the threshold. If it were a case, where the
temperature hovers around a threshold, the mitigation will be applied
and removed at every iteration. This reaction to the temperature is
inefficient for performance.

The use of hysteresis temperature could avoid this ping-pong of
mitigation by relaxing the mitigation to happen only when the
temperature goes below this lower hysteresis value.

Signed-off-by: Ram Chandrasekar <rkumbako@codeaurora.org>
Signed-off-by: Lina Iyer <ilina@codeaurora.org>
2019-09-17 11:19:55 +01:00
Phil Elwell
cc6250f122 sc16is7xx: Don't spin if no data received
See: https://github.com/raspberrypi/linux/issues/2676

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Stefan Wahren
290efb0b0b firmware: raspberrypi: Add backward compatible get_throttled
Avoid a hard userspace ABI change by adding a compatible get_throttled
sysfs entry. Its value is now feed by the GET_THROTTLED requests of the
new hwmon driver. The first access to get_throttled will generate
a warning.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
2019-09-17 11:19:55 +01:00
Stefan Wahren
4583b08d3f hwmon: raspberrypi: Prevent voltage low warnings from filling log
Although the correct fix for low voltage warnings is to
improve the power supply, the current implementation
of the detection can fill the log if the warning
happens freqently. This replaces the logging with
slightly custom ratelimited logging.

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
2019-09-17 11:19:55 +01:00
detule
57f0a27f51 vchiq_2835_arm: Implement a DMA pool for small bulk transfers (#2699)
During a bulk transfer we request a DMA allocation to hold the
scatter-gather list.  Most of the time, this allocation is small
(<< PAGE_SIZE), however it can be requested at a high enough frequency
to cause fragmentation and/or stress the CMA allocator (think time
spent in compaction here, or during allocations elsewhere).

Implement a pool to serve up small DMA allocations, falling back
to a coherent allocation if the request is greater than
VCHIQ_DMA_POOL_SIZE.

Signed-off-by: Oliver Gjoneski <ogjoneski@gmail.com>
2019-09-17 11:19:55 +01:00
popcornmix
1b08d96dc1 cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT 2019-09-17 11:19:55 +01:00
Serge Schneider
1b8f5ac6d6 Add rpi-poe-fan driver
Signed-off-by: Serge Schneider <serge@raspberrypi.org>

PoE HAT driver cleanup

* Fix undeclared variable in rpi_poe_fan_suspend
* Add SPDX-License-Identifier
* Expand PoE acronym in Kconfig help
* Give clearer error message on of_property_count_u32_elems fail
* Add documentation
* Add vendor to of_device_id compatible string.
* Rename m_data_s struct to fw_data_s
* Fix typos

Fixes: #2665

Signed-off-by: Serge Schneider <serge@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Phil Elwell
e1aebb45a7 lan78xx: Move enabling of EEE into PHY init code
Enable EEE mode as soon as possible after connecting to the PHY, and
before phy_start. This avoids a second link negotiation, which speeds
up booting and stops the interface failing to become ready.

See: https://github.com/raspberrypi/linux/issues/2437

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Phil Elwell
c0db3bfb19 brcmfmac: Re-enable firmware roaming support
As of 4.18, a firmware that implements the update_connect_params
method but doesn't claim to support roaming causes an error. We
disabled firmware roaming in 4.4 [1] because it appeared to
prevent disconnects, but let's try with the current firmware to see
if things have improved.

[1] dd91880117

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Dave Stevenson
706448e71c net: lan78xx: Disable TCP Segmentation Offload (TSO)
TSO seems to be having issues when packets are dropped and the
remote end uses Selective Acknowledge (SACK) to denote that
data is missing. The missing data is never resent, so the
connection eventually stalls.

There is a module parameter of enable_tso added to allow
further debugging without forcing a rebuild of the kernel.

https://github.com/raspberrypi/linux/issues/2449
https://github.com/raspberrypi/linux/issues/2482

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Phil Elwell
fe73eac1e4 of: configfs: Use of_overlay_fdt_apply API call
The published API to the dynamic overlay application mechanism now
takes a Flattened Device Tree blob as input so that it can manage the
lifetime of the unflattened tree. Conveniently, the new API call -
of_overlay_fdt_apply - is virtually a drop-in replacement for
create_overlay, which can now be deleted.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:55 +01:00
Phil Elwell
71fa23832b irqchip: irq-bcm2835: Calc. FIQ_START at boot-time
ad83c7cb2f ("irqchip/irq-bcm2836: Add support for DT interrupt polarity")
changed the way that the BCM2836/7 local interrupts are mapped; instead
of being pre-mapped they are now mapped on-demand. A side effect of this
change is that the call to irq_of_parse_and_map from armctrl_of_init
creates a new mapping, forming a gap between the IRQs and the FIQs. This
 gap breaks the FIQ<->IRQ mapping which up to now has been done by assuming:

1) that the value of FIQ_START is the same as the number of normal IRQs
that will be mapped (still true), and

2) that this value is also the offset between an IRQ and its equivalent
FIQ (which is no longer the case).

Remove both assumptions by measuring the interval between the last IRQ
and the last FIQ, passing it as the parameter to init_FIQ().

Fixes: https://github.com/raspberrypi/linux/issues/2432

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:54 +01:00
Phil Elwell
792e4b7ca1 firmware/raspberrypi: Notify firmware of a reboot
Register for reboot notifications, sending RPI_FIRMWARE_NOTIFY_REBOOT
over the mailbox interface on reception.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:54 +01:00
Nick Bulleid
ec5e2870c6 Add ability to export gpio used by gpio-poweroff
Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>

Added export feature to gpio-poweroff documentation

Signed-off-by: Nick Bulleid <nedbulleid@fastmail.com>
2019-09-17 11:19:54 +01:00
popcornmix
cd04fde19b hid: Reduce default mouse polling interval to 60Hz
Reduces overhead when using X
2019-09-17 11:19:54 +01:00
Phil Elwell
1ec4e43caa lan78xx: Read initial EEE status from DT
Add two new DT properties:
* microchip,eee-enabled  - a boolean to enable EEE
* microchip,tx-lpi-timer - time in microseconds to wait before entering
                           low power state

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:54 +01:00
hdoverobinson
2be3b49561 added capture_clear option to pps-gpio via dtoverlay (#2433) 2019-09-17 11:19:54 +01:00
Phil Elwell
1ba1643bef i2c-gpio: Also set bus numbers from reg property
I2C busses can be assigned specific bus numbers using aliases in
Device Tree - string properties where the name is the alias and the
value is the path to the node. The current DT parameter mechanism
does not allow property names to be derived from a parameter value
in any way, so it isn't possible to generate unique or matching
aliases for nodes from an overlay that can generate multiple
instances, e.g. i2c-gpio.

Work around this limitation (at least temporarily) by allowing
the i2c adapter number to be initialised from the "reg" property
if present.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:54 +01:00
Eric Anholt
a7e9dd37ed drm/vc4: Don't wait for vblank on fkms cursor updates.
We don't use the same async update path between fkms and normal kms,
and the normal kms workaround ended up making us wait.  This became a
larger problem in rpi-4.14.y, as the USB HID update rate throttling
got (accidentally?) dropped.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:54 +01:00
Dave Stevenson
7e9d86c1a5 gpu:vc4-fkms: Update driver to not use plane->crtc.
Following on from
commit 2f958af7fc ("drm/vc4: Stop updating plane->fb/crtc")
do the same in the firmwarekms driver and look at plane_state->crtc
instead.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:54 +01:00
popcornmix
7bd4c486e5 vc4_firmware_kms: fix build 2019-09-17 11:19:54 +01:00
Eric Anholt
9c681547fd drm/vc4: Remove duplicate primary/cursor fields from FKMS driver.
The CRTC has those fields and we can just use them.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:54 +01:00
Eric Anholt
6c345b4561 drm/vc4: Skip SET_CURSOR_INFO when the cursor contents didn't change.
Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:54 +01:00
Eric Anholt
50ab55d55f drm/vc4: Fix warning about vblank interrupts before DRM core is ready.
The SMICS interrupt fires continuously, but since it's 1/100 the rate
of the USB interrupts, we don't really need a way to turn it off.  We
do need to make sure that we don't tell DRM about it until DRM has
asked for the interrupt at least once, because otherwise it will throw
a warning at boot time.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:54 +01:00
popcornmix
cd7a9d3720 vc4_fkms: Apply firmware overscan offset to hardware cursor 2019-09-17 11:19:53 +01:00
Eric Anholt
a7c81b0240 drm/vc4: Add missing enable/disable vblank handlers in fkms.
Fixes hang at boot in 4.14.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
173987df9f drm/vc4: Add FB modifier support to firmwarekms.
Signed-off-by: Eric Anholt <eric@anholt.net>
(cherry picked from commit 11752d7348)
2019-09-17 11:19:53 +01:00
Eric Anholt
8e2453e106 drm/vc4: Add support for setting DPMS in firmwarekms.
This ensures that the screen goes blank during DPMS (screensaver),
including the cursor.  Planes don't necessarily get disabled during
CRTC disable, so we need to be careful to not leave them on or turn
them back on early.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
95c8ff2588 drm/vc4: Fix sending of page flip completion events in FKMS mode.
In the rewrite of vc4_crtc.c for fkms, I dropped the part of the
CRTC's atomic flush handler that moved the completion event from the
proposed atomic state change to the CRTC's current state.  That meant
that when full screen pageflipping happened (glxgears -fullscreen in
X, compton, por weston), the app would end up blocked firever waiting
to draw its next frame.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
5c7fab1ada drm/vc4: Add DRM_DEBUG_ATOMIC for the insides of fkms.
Trying to debug weston on fkms involved figuring out what calls I was
making to the firmware.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
eefd4be2a8 drm/vc4: Name the primary and cursor planes in fkms.
This makes debugging nicer, compared to trying to remember what the
IDs are.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
992f490321 drm/vc4: Add a mode for using the closed firmware for display.
Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Eric Anholt
46e0182d3d raspberrypi-firmware: Export the general transaction function.
The vc4-firmware-kms module is going to be doing the MBOX FB call.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:53 +01:00
Phil Elwell
152c429f52 serial: 8250: bcm2835aux - suppress EPROBE_DEFER
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:53 +01:00
Phil Elwell
1c1f919210 ARM: Activate FIQs to avoid __irq_startup warnings
There is a new test in __irq_startup that the IRQ is activated, which
hasn't been the case for FIQs since they bypass some of the usual setup.

Augment enable_fiq to include a call to irq_activate to avoid the
warning.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:53 +01:00
Phil Elwell
ca0ee54b0c dwc-otg: FIQ: Fix "bad mode in data abort handler"
Create a semi-static mapping for the USB registers early in the boot
process, before additional kernel threads are started, so all threads
will have the mappings from the start. This avoids the need for
data aborts to lazily update them.

See: https://github.com/raspberrypi/linux/issues/2450

Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
2019-09-17 11:19:53 +01:00
Noralf Trønnes
27166ab42e ARM: bcm2835: Set Serial number and Revision
The VideoCore bootloader passes in Serial number and
Revision number through Device Tree. Make these available to
userspace through /proc/cpuinfo.

Mainline status:

There is a commit in linux-next that standardize passing the serial
number through Device Tree (string: /serial-number):
ARM: 8355/1: arch: Show the serial number from devicetree in cpuinfo

There was an attempt to do the same with the revision number, but it
didn't get in:
[PATCH v2 1/2] arm: devtree: Set system_rev from DT revision

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:52 +01:00
Phil Elwell
5f174f8b47 cgroup: Disable cgroup "memory" by default
Some Raspberry Pis have limited RAM and most users won't use the
cgroup memory support so it is disabled by default. Enable with:

    cgroup_enable=memory

See: https://github.com/raspberrypi/linux/issues/1950

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:52 +01:00
Phil Elwell
c03d95f2e0 mcp2515: Use DT-supplied interrupt flags
The MCP2515 datasheet clearly describes a level-triggered interrupt
pin. Therefore the receiving interrupt controller must also be
configured for level-triggered operation otherwise there is a danger
of a missed interrupt condition blocking all subsequent interrupts.
The ONESHOT flag ensures that the interrupt is masked until the
threaded interrupt handler exits.

Rather than change the flags globally (they must have worked for at
least one user), allow the flags to be overridden from Device Tree
in the event that the device has a DT node.

See: https://github.com/raspberrypi/linux/issues/2175
     https://github.com/raspberrypi/linux/issues/2263

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:52 +01:00
James Hughes
cdeb1e96c0 AXI performance monitor driver (#2222)
Uses the debugfs I/F to provide access to the AXI
bus performance monitors.

Requires the new mailbox peripheral access for access
to the VPU performance registers, system bus access
is done using direct register reads.

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>
2019-09-17 11:19:52 +01:00
popcornmix
7fcbd1d89b cache: export clean and invalidate
hack: cache: Fix linker error
2019-09-17 11:19:52 +01:00
Phil Elwell
81039749db Revert "build/arm64: Add rules for .dtbo files for dts overlays"
DT build rules are now in the common top-level Makefile.

This reverts commit dce5b0fbdd.
2019-09-17 11:19:52 +01:00
Khem Raj
7faf64305c build/arm64: Add rules for .dtbo files for dts overlays
We now create overlays as .dtbo files.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
2019-09-17 11:19:52 +01:00
Michael Zoran
fd9266513d ARM64: Force hardware emulation of deprecated instructions. 2019-09-17 11:19:52 +01:00
Michael Zoran
d10980bba5 ARM64: Round-Robin dispatch IRQs between CPUs.
IRQ-CPU mapping is round robined on ARM64 to increase
concurrency and allow multiple interrupts to be serviced
at a time.  This reduces the need for FIQ.

Signed-off-by: Michael Zoran <mzoran@crowfest.net>
2019-09-17 11:19:52 +01:00
popcornmix
74f3fa02d0 config: Add default configs 2019-09-17 11:19:52 +01:00
Phil Elwell
e3714c7dd4 hci_h5: Don't send conf_req when ACTIVE
Without this patch, a modem and kernel can continuously bombard each
other with conf_req and conf_rsp messages, in a demented game of tag.
2019-09-17 11:19:52 +01:00
Cheong2K
6bae335f53 brcm: adds support for BCM43341 wifi
brcmfmac: Disable power management

Disable wireless power saving in the brcmfmac WLAN driver. This is a
temporary measure until the connectivity loss resulting from power
saving is resolved.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

brcmfmac: Use original country code as a fallback

Commit 73345fd212:

    brcmfmac: Configure country code using device specific settings

prevents region codes from working on devices that lack a region code
translation table. In the event of an absent table, preserve the old
behaviour of using the provided code as-is.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

brcmfmac: Plug memory leak in brcmf_fill_bss_param

See: https://github.com/raspberrypi/linux/issues/1471

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

brcmfmac: do not use internal roaming engine by default

Some evidence of curing disconnects with this disabled, so make it a default.
Can be overridden with module parameter roamoff=0
See: http://projectable.me/optimize-my-pi-wi-fi/

brcmfmac: Change stop_ap sequence

Patch from Broadcom/Cypress to resolve a customer error

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:52 +01:00
Pantelis Antoniou
774a23ee85 OF: DT-Overlay configfs interface
This is a port of Pantelis Antoniou's v3 port that makes use of the
new upstreamed configfs support for binary attributes.

Original commit message:

Add a runtime interface to using configfs for generic device tree overlay
usage. With it its possible to use device tree overlays without having
to use a per-platform overlay manager.

Please see Documentation/devicetree/configfs-overlays.txt for more info.

Changes since v2:
- Removed ifdef CONFIG_OF_OVERLAY (since for now it's required)
- Created a documentation entry
- Slight rewording in Kconfig

Changes since v1:
- of_resolve() -> of_resolve_phandles().

Originally-signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Phil Elwell <phil@raspberrypi.org>

DT configfs: Fix build errors on other platforms

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

DT configfs: fix build error

There is an error when compiling rpi-4.6.y branch:
  CC      drivers/of/configfs.o
drivers/of/configfs.c:291:21: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
   .default_groups = of_cfs_def_groups,
                     ^
drivers/of/configfs.c:291:21: note: (near initialization for 'of_cfs_subsys.su_group.default_groups.next')

The .default_groups is linked list since commit
1ae1602de0.
This commit uses configfs_add_default_group to fix this problem.

Signed-off-by: Slawomir Stepien <sst@poczta.fm>

configfs: New of_overlay API
2019-09-17 11:19:51 +01:00
popcornmix
b908e9c989 net: Add non-mainline source for rtl8192cu wlan
We are now syncing with version from:
https://github.com/pvaret/rtl8192cu-fixes
2019-09-17 11:19:51 +01:00
popcornmix
526802f76e bcm2835-virtgpio: Virtual GPIO driver
Add a virtual GPIO driver that uses the firmware mailbox interface to
request that the VPU toggles LEDs.
2019-09-17 11:19:51 +01:00
P33M
4cb3e8181c rpi_display: add backlight driver and overlay
Add a mailbox-driven backlight controller for the Raspberry Pi DSI
touchscreen display. Requires updated GPU firmware to recognise the
mailbox request.

Signed-off-by: Gordon Hollingworth <gordon@raspberrypi.org>

Add Raspberry Pi firmware driver to the dependencies of backlight driver

Otherwise the backlight driver fails to build if the firmware
loading driver is not in the kernel

Signed-off-by: Alex Riesen <alexander.riesen@cetitec.com>
2019-09-17 11:19:51 +01:00
Tim Gover
5cc4fa2ede ASoC: Create a generic Pi Hat WM8804 driver
Reduce the amount of duplicated code by creating a generic driver for
Pi Hat digi cards using the WM8804 codec.

This replaces the
Allo DigiOne, Hifiberry Digi/Pro, JustBoom Digi and IQAudIO Digi
dedicate soundcard drivers with a generic driver.

There are no significant changes to the runtime behavior of the drivers
and end users should not have to change any configuration settings
after upgrading.

Minor changes
* Check the return value of snd_soc_component_update_bits
* Added some pr_debug tracing
* Various checkpatch tidyups
* Updated allodigi-one to use use 128FS at > 96 Khz. This appears to
  be an omission in the original driver code so followed the Hifiberry
  DAC driver approach.
2019-09-17 11:19:51 +01:00
popcornmix
21b21e30e0 ASoC: Add Kconfig and Makefile for sound/soc/bcm
Signed-off-by: popcornmix <popcornmix@gmail.com>
2019-09-17 11:19:51 +01:00
Tim Gover
90c73624b2 ASoC: Add generic RPI driver for simple soundcards.
The RPI simple sound card driver provides a generic ALSA SOC card driver
supporting a variety of Pi HAT soundcards. The intention is to avoid
the duplication of code for cards that can't be fully supported by
the soc simple/graph cards but are otherwise almost identical.

This initial commit adds support for the ADAU1977 ADC, Google VoiceHat,
HifiBerry AMP, HifiBerry DAC and RPI DAC.

Signed-off-by: Tim Gover <tim.gover@raspberrypi.org>

ASoC: Use correct card name in rpi-simple driver

Use the specific card name from drvdata instead of the snd_rpi_simple

rpi-simple-soundcard: Use nicer driver name "RPi-simple"

Rename the driver from "RPI simple soundcard" to "RPi-simple" so that
the driver name won't be mangled allowing to be used unaltered as the
card conf filename.
2019-09-17 11:19:51 +01:00
allocom
a6046c1c20 Driver and overlay for Allo Katana DAC
Allo Katana DAC: Updated default values

Signed-off-by: Jaikumar <jaikumar@cem-solutions.com>

Added mute stream func

Signed-off-by: Jaikumar <jaikumar@cem-solutions.net>
2019-09-17 11:19:51 +01:00
Peter Malkin
619d26eb0b Driver support for Google voiceHAT soundcard.
ASoC: googlevoicehat-codec: Use correct device when grabbing GPIO

The fixup for the VoiceHAT in 4.18 incorrectly tried to find the
sdmode GPIO pin under the card device, not the codec device.
This failed, and therefore caused the device probe to fail.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Reformat for kernel coding standards

Fix all whitespace, indentation, and bracing errors.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Make driver function structure const

Make voicehat_component_driver a const structure.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

ASoC: googlevoicehat-codec: Only convert from ms to jiffies once

Minor optimisation and allows to become checkpatch clean.
A msec value is read out of DT or from a define, and convert once to
jiffies, rather than every time that it is used.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:51 +01:00
Matt Flax
59306adf7e Add support for the AudioInjector.net Octo sound card
AudioInjector Octo: sample rates, regulators, reset

This patch adds new sample rates to the Audioinjector Octo sound card. The
new supported rates are (in kHz) :
96, 48, 32, 24, 16, 8, 88.2, 44.1, 29.4, 22.05, 14.7

Reference the bcm270x DT regulators in the overlay.

This patch adds a reset GPIO for the AudioInjector.net octo sound card.

Audioinjector octo : Make the playback and capture symmetric

This patch ensures that the sample rate and channel count of the audioinjector
octo sound card are symmetric.

audioinjector-octo: Add continuous clock feature

By user request, add a switch to prevent the clocks being stopped when
the stream is paused, stopped or shutdown. Provide access to the switch
by adding a 'non-stop-clocks' parameter to the audioinjector-addons
overlay.

See: https://github.com/raspberrypi/linux/issues/2409

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:51 +01:00
Fe-Pi
3c685ea18a Add support for Fe-Pi audio sound card. (#1867)
Fe-Pi Audio Sound Card is based on NXP SGTL5000 codec.
Mechanical specification of the board is the same the Raspberry Pi Zero.
3.5mm jacks for Headphone/Mic, Line In, and Line Out.

Signed-off-by: Henry Kupis <fe-pi@cox.net>
2019-09-17 11:19:51 +01:00
Miquel
a4062a0580 sound: Support for Dion Audio LOCO-V2 DAC-AMP HAT
Signed-off-by: Miquel Blauw <info@dionaudio.nl>

ASoC: dionaudio_loco-v2: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
Matthias Reichl
932c7dcd94 ASoC: Add driver for Cirrus Logic Audio Card
Note: due to problems with deferred probing of regulators
the following softdep should be added to a modprobe.d file

softdep arizona-spi pre: arizona-ldo1

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
gtrainavicius
034efbfe01 Support for Blokas Labs pisound board
Pisound dynamic overlay (#1760)

Restructuring pisound-overlay.dts, so it can be loaded and unloaded dynamically using dtoverlay.

Print a logline when the kernel module is removed.

pisound improvements:

* Added a writable sysfs object to enable scripts / user space software
to blink MIDI activity LEDs for variable duration.
* Improved hw_param constraints setting.
* Added compatibility with S16_LE sample format.
* Exposed some simple placeholder volume controls, so the card appears
in volumealsa widget.

Add missing SND_PISOUND selects dependency to SND_RAWMIDI

Without it the Pisound module fails to compile.
See https://github.com/raspberrypi/linux/issues/2366

Updates for Pisound module code:

	* Merged 'Fix a warning in DEBUG builds' (1c8b82b).
	* Updating some strings and copyright information.
	* Fix for handling high load of MIDI input and output.
	* Use dual rate oversampling ratio for 96kHz instead of single
	  rate one.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fixing memset call in pisound.c

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fix for Pisound's MIDI Input getting blocked for a while in rare cases.

There was a possible race condition which could lead to Input's FIFO queue
to be underflown, causing high amount of processing in the worker thread for
some period of time.

Signed-off-by: Giedrius Trainavicius <giedrius@blokas.io>

Fix for Pisound kernel module in Real Time kernel configuration.

When handler of data_available interrupt is fired, queue_work ends up
getting called and it can block on a spin lock which is not allowed in
interrupt context. The fix was to run the handler from a thread context
instead.

Pisound: Remove spinlock usage around spi_sync
2019-09-17 11:19:50 +01:00
BabuSubashChandar
dd830be9e2 Add support for Allo Boss DAC add-on board for Raspberry Pi. (#1924)
Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>

Add support for new clock rate and mute gpios.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Deepak <deepak@zilogic.com>
Reviewed-by: BabuSubashChandar <babusubashchandar@zilogic.com>

ASoC: allo-boss-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: allo-boss-dac: transmit S24_LE with 64 BCLK cycles

Signed-off-by: Matthias Reichl <hias@horus.com>

allo-boss-dac: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
Raashid Muhammed
af9767f8c0 Add support for Allo Piano DAC 2.1 plus add-on board for Raspberry Pi.
The Piano DAC 2.1 has support for 4 channels with subwoofer.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>

Add clock changes and mute gpios (#1938)

Also improve code style and adhere to ALSA coding conventions.

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Reviewed-by: Vijay Kumar B. <vijaykumar@zilogic.com>
Reviewed-by: Raashid Muhammed <raashidmuhammed@zilogic.com>

PianoPlus: Dual Mono & Dual Stereo features added (#2069)

allo-piano-dac-plus: Master volume added + fixes

Master volume added, which controls both DACs volumes.

See: https://github.com/raspberrypi/linux/pull/2149

Also fix initial max volume, default mode value, and unmute.

Signed-off-by: allocom <sparky-dev@allo.com>

ASoC: allo-piano-dac-plus: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

sound: bcm: Fix memset dereference warning

This warning appears with GCC 6.4.0 from toolchains.bootlin.com:

../sound/soc/bcm/allo-piano-dac-plus.c: In function ‘snd_allo_piano_dac_init’:
../sound/soc/bcm/allo-piano-dac-plus.c:711:30: warning: argument to ‘sizeof’ in ‘memset’ call is the same expression as the destination; did you mean to dereference it? [-Wsizeof-pointer-memaccess]
  memset(glb_ptr, 0x00, sizeof(glb_ptr));
                              ^

Suggested-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
2019-09-17 11:19:50 +01:00
Clive Messer
c15521cc28 Allo Piano DAC boards: Initial 2 channel (stereo) support (#1645)
Add initial 2 channel (stereo) support for Allo Piano DAC (2.0/2.1) boards,
using allo-piano-dac-pcm512x-audio overlay and allo-piano-dac ALSA ASoC
machine driver.

NB. The initial support is 2 channel (stereo) ONLY!
(The Piano DAC 2.1 will only support 2 channel (stereo) left/right output,
 pending an update to the upstream pcm512x codec driver, which will have
 to be submitted via upstream. With the initial downstream support,
 provided by this patch, the Piano DAC 2.1 subwoofer outputs will
 not function.)

Signed-off-by: Baswaraj K <jaikumar@cem-solutions.net>
Signed-off-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>
Tested-by: Clive Messer <clive.messer@digitaldreamtime.co.uk>

ASoC: allo-piano-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params and ops as they are no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
DigitalDreamtime
571b9a0ea1 Add support for Dion Audio LOCO DAC-AMP HAT
Using dedicated machine driver and pcm5102a codec driver.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>
2019-09-17 11:19:50 +01:00
escalator2015
bbb897e8a8 New driver for RRA DigiDAC1 soundcard using WM8741 + WM8804 2019-09-17 11:19:50 +01:00
Matt Flax
035368cfac New AudioInjector.net Pi soundcard with low jitter audio in and out.
Contains the sound/soc/bcm ALSA machine driver and necessary alterations to the Kconfig and Makefile.
Adds the dts overlay and updates the Makefile and README.
Updates the relevant defconfig files to enable building for the Raspberry Pi.
Thanks to Phil Elwell (pelwell) for the review, simple-card concepts and discussion. Thanks to Clive Messer for overlay naming suggestions.

Added support for headphones, microphone and bclk_ratio settings.

This patch adds headphone and microphone capability to the Audio Injector sound card. The patch also sets the bit clock ratio for use in the bcm2835-i2s driver. The bcm2835-i2s can't handle an 8 kHz sample rate when the bit clock is at 12 MHz because its register is only 10 bits wide which can't represent the ch2 offset of 1508. For that reason, the rate constraint is added.
2019-09-17 11:19:50 +01:00
Aaron Shaw
c9e4f9883e Add Support for JustBoom Audio boards
justboom-dac: Adjust for ALSA API change

As of 4.4, snd_soc_limit_volume now takes a struct snd_soc_card *
rather than a struct snd_soc_codec *.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

ASoC: justboom-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Also remove hw_params as it's no longer needed.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
Waldemar Brodkorb
1f9f5382e9 Add driver for rpi-proto
Forward port of 3.10.x driver from https://github.com/koalo
We are using a custom board and would like to use rpi 3.18.x
kernel. Patch works fine for our embedded system.

URL to the audio chip:
http://www.mikroe.com/add-on-boards/audio-voice/audio-codec-proto/

Playback tested with devicetree enabled.

Signed-off-by: Waldemar Brodkorb <wbrodkorb@conet.de>
2019-09-17 11:19:50 +01:00
Daniel Matuschek
be87e5d640 Added driver for HiFiBerry Amp amplifier add-on board
The driver contains a low-level hardware driver for the TAS5713 and the
drivers for the Raspberry Pi I2S subsystem.

TAS5713: return error if initialisation fails

Existing TAS5713 driver logs errors during initialisation, but does not return
an error code. Therefore even if initialisation fails, the driver will still be
loaded, but won't work. This patch fixes this. I2C communication error will now
reported correctly by a non-zero return code.

HiFiBerry Amp: fix device-tree problems

Some code to load the driver based on device-tree-overlays was missing. This is added by this patch.
2019-09-17 11:19:50 +01:00
Daniel Matuschek
94f31955ef Added support for HiFiBerry DAC+
The driver is based on the HiFiBerry DAC driver. However HiFiBerry DAC+ uses
a different codec chip (PCM5122), therefore a new driver is necessary.

Add support for the HiFiBerry DAC+ Pro.

The HiFiBerry DAC+ and DAC+ Pro products both use the existing bcm sound driver with the DAC+ Pro having a special clock device driver representing the two high precision oscillators.

An addition bug fix is included for the PCM512x codec where by the physical size of the sample frame is used in the calculation of the LRCK divisor as it was found to be wrong when using 24-bit depth sample contained in a little endian 4-byte sample frame.

Limit PCM512x "Digital" gain to 0dB by default with HiFiBerry DAC+

24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.

Add dt param to force HiFiBerry DAC+ Pro into slave mode

"dtoverlay=hifiberry-dacplus,slave"

Add 'slave' param to use HiFiBerry DAC+ Pro in slave mode,
with Pi as master for bit and frame clock.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

Fixed a bug when using 352.8kHz sample rate

Signed-off-by: Daniel Matuschek <daniel@hifiberry.com>

ASoC: pcm512x: revert downstream changes

This partially reverts commit 185ea05465
which was added by https://github.com/raspberrypi/linux/pull/1152

The downstream pcm512x changes caused a regression, it broke normal
use of the 24bit format with the codec, eg when using simple-audio-card.

The actual bug with 24bit playback is the incorrect usage
of physical_width in various drivers in the downstream tree
which causes 24bit data to be transmitted with 32 clock
cycles. So it's not the pcm512x that needs fixing, it's the
soundcard drivers.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplus: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>

ASoC: hifiberry_dacplus: transmit S24_LE with 64 BCLK cycles

Signed-off-by: Matthias Reichl <hias@horus.com>

hifiberry_dacplus: switch to snd_soc_dai_set_bclk_ratio

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:50 +01:00
Gordon Garrity
ddefb02660 Add IQaudIO Sound Card support for Raspberry Pi
Set a limit of 0dB on Digital Volume Control

The main volume control in the PCM512x DAC has a range up to
+24dB. This is dangerously loud and can potentially cause massive
clipping in the output stages. Therefore this sets a sensible
limit of 0dB for this control.

Allow up to 24dB digital gain to be applied when using IQAudIO DAC+

24db_digital_gain DT param can be used to specify that PCM512x
codec "Digital" volume control should not be limited to 0dB gain,
and if specified will allow the full 24dB gain.

Modify IQAudIO DAC+ ASoC driver to set card/dai config from dt

Add the ability to set the card name, dai name and dai stream name, from
dt config.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

IQaudIO: auto-mute for AMP+ and DigiAMP+

IQAudIO amplifier mute via GPIO22. Add dt params for "one-shot" unmute
and auto mute.

Revision 2, auto mute implementing HiassofT suggestion to mute/unmute
using set_bias_level, rather than startup/shutdown....
"By default DAPM waits 5 seconds (pmdown_time) before shutting down
playback streams so a close/stop immediately followed by open/start
doesn't trigger an amp mute+unmute."

Tested on both AMP+ (via DAC+) and DigiAMP+, with both options...

dtoverlay=iqaudio-dacplus,unmute_amp
 "one-shot" unmute when kernel module loads.

dtoverlay=iqaudio-dacplus,auto_mute_amp
 Unmute amp when ALSA device opened by a client. Mute, with 5 second delay
 when ALSA device closed. (Re-opening the device within the 5 second close
 window, will cancel mute.)

Revision 4, using gpiod.

Revision 5, clean-up formatting before adding mute code.
 - Convert tab plus 4 space formatting to 2x tab
 - Remove '// NOT USED' commented code

Revision 6, don't attempt to "one-shot" unmute amp, unless card is
successfully registered.

Signed-off-by: DigitalDreamtime <clive.messer@digitaldreamtime.co.uk>

ASoC: iqaudio-dac: fix S24_LE format

Remove set_bclk_ratio call so 24-bit data is transmitted in
24 bclk cycles.

Signed-off-by: Matthias Reichl <hias@horus.com>
2019-09-17 11:19:49 +01:00
Florian Meier
5d2189399f ASoC: Add support for Rpi-DAC 2019-09-17 11:19:49 +01:00
Phil Elwell
0e1af5ace7 mfd: Add Raspberry Pi Sense HAT core driver 2019-09-17 11:19:49 +01:00
Phil Elwell
fecfb8ac9a gpio-poweroff: Allow it to work on Raspberry Pi
The Raspberry Pi firmware manages the power-down and reboot
process. To do this it installs a pm_power_off handler, causing
the gpio-poweroff module to abort the probe function.

This patch introduces a "force" DT property that overrides that
behaviour, and also adds a DT overlay to enable and control it.

Note that running in an active-low configuration (DT parameter
"active_low") requires a custom dt-blob.bin and probably won't
allow a reboot without switching off, so an external inversion
of the trigger signal may be preferable.
2019-09-17 11:19:49 +01:00
popcornmix
a417ee4ed4 Improve __copy_to_user and __copy_from_user performance
Provide a __copy_from_user that uses memcpy. On BCM2708, use
optimised memcpy/memmove/memcmp/memset implementations.

arch/arm: Add mmiocpy/set aliases for memcpy/set

See: https://github.com/raspberrypi/linux/issues/1082

copy_from_user: CPU_SW_DOMAIN_PAN compatibility

The downstream copy_from_user acceleration must also play nice with
CONFIG_CPU_SW_DOMAIN_PAN.

See: https://github.com/raspberrypi/linux/issues/1381

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:49 +01:00
popcornmix
bf2ae19364 Added Device IDs for August DVB-T 205 2019-09-17 11:19:49 +01:00
Phil Elwell
65afae07bc BCM270x_DT: Add pwr_led, and the required "input" trigger
The "input" trigger makes the associated GPIO an input.  This is to support
the Raspberry Pi PWR LED, which is driven by external hardware in normal use.

N.B. pwr_led is not available on Model A or B boards.

leds-gpio: Implement the brightness_get method

The power LED uses some clever logic that means it is driven
by a voltage measuring circuit when configured as input, otherwise
it is driven by the GPIO output value. This patch wires up the
brightness_get method for leds-gpio so that user-space can monitor
the LED value via /sys/class/gpio/led1/brightness. Using the input
trigger this returns an indication of the system power health,
otherwise it is just whatever value the trigger has written most
recently.

See: https://github.com/raspberrypi/linux/issues/1064
2019-09-17 11:19:49 +01:00
notro
17cc6cc6e8 BCM2708: Add core Device Tree support
Add the bare minimum needed to boot BCM2708 from a Device Tree.

Signed-off-by: Noralf Tronnes <notro@tronnes.org>

BCM2708: DT: change 'axi' nodename to 'soc'

Change DT node named 'axi' to 'soc' so it matches ARCH_BCM2835.
The VC4 bootloader fills in certain properties in the 'axi' subtree,
but since this is part of an upstreaming effort, the name is changed.

Signed-off-by: Noralf Tronnes notro@tronnes.org

BCM2708_DT: Correct length of the peripheral space

Use dts-dirs feature for overlays.

The kernel makefiles have a dts-dirs target that is for vendor subdirectories.

Using this fixes the install_dtbs target, which previously did not install the overlays.

BCM270X_DT: configure I2S DMA channels

Signed-off-by: Matthias Reichl <hias@horus.com>

BCM270X_DT: switch to bcm2835-i2s

I2S soundcard drivers with proper devicetree support (i.e. not linking
to the cpu_dai/platform via name but to cpu/platform via of_node)
will work out of the box without any modifications.

When the kernel is compiled without devicetree support the platform
code will instantiate the bcm2708-i2s driver and I2S soundcard drivers
will link to it via name, as before.

Signed-off-by: Matthias Reichl <hias@horus.com>

SDIO-overlay: add poll_once-boolean parameter

Add paramter to toggle sdio-device-polling
done every second or once at boot-time.

Signed-off-by: Patrick Boettcher <patrick.boettcher@posteo.de>

BCM270X_DT: Make mmc overlay compatible with current firmware

The original DT overlay logic followed a merge-then-patch procedure,
i.e. parameters are applied to the loaded overlay before the overlay
is merged into the base DTB. This sequence has been changed to
patch-then-merge, in order to support parameterised node names, and
to protect against bad overlays. As a result, overrides (parameters)
must only target labels in the overlay, but the overlay can obviously target nodes in the base DTB.

mmc-overlay.dts (that switches back to the original mmc sdcard
driver) is the only overlay violating that rule, and this patch
fixes it.

bcm270x_dt: Use the sdhost MMC controller by default

The "mmc" overlay reverts to using the other controller.

squash: Add cprman to dt

BCM270X_DT: Use clk_core for I2C interfaces

BCM270X_DT: Use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi

The mainline Device Tree files are quite close to downstream now.
Let's use bcm283x.dtsi, bcm2835.dtsi and bcm2836.dtsi as base files
for our dts files.

Mainline dts files are based on these files:

          bcm2835-rpi.dtsi
  bcm2835.dtsi    bcm2836.dtsi
          bcm283x.dtsi

Current downstream are based on these:

  bcm2708.dtsi    bcm2709.dtsi    bcm2710.dtsi
             bcm2708_common.dtsi

This patch introduces this dependency:

  bcm2708.dtsi    bcm2709.dtsi
          bcm2708-rpi.dtsi
          bcm270x.dtsi
  bcm2835.dtsi    bcm2836.dtsi
          bcm283x.dtsi

And:
          bcm2710.dtsi
          bcm2708-rpi.dtsi
          bcm270x.dtsi
          bcm283x.dtsi

bcm270x.dtsi contains the downstream bcm283x.dtsi diff.
bcm2708-rpi.dtsi is the downstream version of bcm2835-rpi.dtsi.

Other changes:
- The led node has moved from /soc/leds to /leds. This is not a problem
  since the label is used to reference it.
- The clk_osc reg property changes from 6 to 3.
- The gpu nodes has their interrupt property set in the base file.
- the clocks label does not point to the /clocks node anymore, but
  points to the cprman node. This is not a problem since the overlays
  that use the clock node refer to it directly: target-path = "/clocks";
- some nodes now have 2 labels since mainline and downstream differs in
  this respect: cprman/clocks, spi0/spi, gpu/vc4.
- some nodes doesn't have an explicit status = "okay" since they're not
  disabled in the base file: watchdog and random.
- gpiomem doesn't need an explicit status = "okay".
- bcm2708-rpi-cm.dts got the hpd-gpios property from bcm2708_common.dtsi,
  it's now set directly in that file.
- bcm2709-rpi-2-b.dts has the timer node moved from /soc/timer to /timer.
- Removed clock-frequency property on the bcm{2709,2710}.dtsi timer nodes.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

BCM270X_DT: Use raspberrypi-power to turn on USB power

Use the raspberrypi-power driver to turn on USB power.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

BCM270X_DT: Add a .dtbo target, use for overlays

Change the filenames and extensions to keep the pre-DDT style of
overlay (<name>-overlay.dtb) distinct from new ones that use a
different style of local fixups (<name>.dtbo), and to match other
platforms.

The RPi firmware uses the DDTK trailer atom to choose which type of
overlay to use for each kernel.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

BCM270X_DT: Don't generate "linux,phandle" props

The EPAPR standard says to use "phandle" properties to store phandles,
rather than the deprecated "linux,phandle" version. By default, dtc
generates both, but adding "-H epapr" causes it to only generate
"phandle"s, saving some space and clutter.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

BCM270X_DT: Add overlay for enc28j60 on SPI2

Works on SPI2 for compute module

BCM270X_DT: Add midi-uart0 overlay

MIDI requires 31.25kbaud, a baudrate unsupported by Linux. The
midi-uart0 overlay configures uart0 (ttyAMA0) to use a fake clock
so that requesting 38.4kbaud actually gets 31.25kbaud.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

BCM270X_DT: Add i2c-sensor overlay

The i2c-sensor overlay is a container for various pressure and
temperature sensors, currently bmp085 and bmp280. The standalone
bmp085_i2c-sensor overlay is now deprecated.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

BCM270X_DT: overlays/*-overlay.dtb -> overlays/*.dtbo (#1752)

We now create overlays as .dtbo files.

build: support for .dtbo files for dtb overlays

Kernel 4.4.6+ on RaspberryPi support .dtbo files for overlays, instead of .dtb.
Patch the kernel, which has faulty rules to generate .dtbo the way yocto does

Signed-off-by: Herve Jourdain <herve.jourdain@neuf.fr>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

BCM270X: Drop position requirement for CMA in VC4 overlay.

No longer necessary since 2aefcd5761,
and will probably let peeople that want to choose a larger CMA
allocation (particularly on pi0/1).

Signed-off-by: Eric Anholt <eric@anholt.net>

BCM270X_DT: RPi Device Tree tidy

Use the upstream sdhost node, add thermal-zones, and factor out some
common elements.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

kbuild: Silence unhelpful DTC warnings

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

BCM270X_DT: DT build rules no longer arch-specific

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:49 +01:00
Phil Elwell
8a64d36852 scripts: Add mkknlimg and knlinfo scripts from tools repo
The Raspberry Pi firmware looks for a trailer on the kernel image to
determine whether it was compiled with Device Tree support enabled.
If the firmware finds a kernel without this trailer, or which has a
trailer indicating that it isn't DT-capable, it disables DT support
and reverts to using ATAGs.

The mkknlimg utility adds that trailer, having first analysed the
image to look for signs of DT support and the kernel version string.

knlinfo displays the contents of the trailer in the given kernel image.

scripts/mkknlimg: Add support for ARCH_BCM2835

Add a new trailer field indicating whether this is an ARCH_BCM2835
build, as opposed to MACH_BCM2708/9. If the loader finds this flag
is set it changes the default base dtb file name from bcm270x...
to bcm283y...

Also update knlinfo to show the status of the field.

scripts/mkknlimg: Improve ARCH_BCM2835 detection

The board support code contains sufficient strings to be able to
distinguish 2708 vs. 2835 builds, so remove the check for
bcm2835-pm-wdt which could exist in either.

Also, since the canned configuration is no longer built in (it's
a module), remove the config string checking.

See: https://github.com/raspberrypi/linux/issues/1157

scripts: Multi-platform support for mkknlimg and knlinfo

The firmware uses tags in the kernel trailer to choose which dtb file
to load. Current firmware loads bcm2835-*.dtb if the '283x' tag is true,
otherwise it loads bcm270*.dtb. This scheme breaks if an image supports
multiple platforms.

This patch adds '270X' and '283X' tags to indicate support for RPi and
upstream platforms, respectively. '283x' (note lower case 'x') is left
for old firmware, and is only set if the image only supports upstream
builds.

scripts/mkknlimg: Append a trailer for all input

Now that the firmware assumes an unsigned kernel is DT-capable, it is
helpful to be able to mark a kernel as being non-DT-capable.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

scripts/knlinfo: Decode DDTK atom

Show the DDTK atom as being a boolean.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

mkknlimg: Retain downstream-kernel detection

With the death of ARCH_BCM2708 and ARCH_BCM2709, a new way is needed to
determine if this is a "downstream" build that wants the firmware to
load a bcm27xx .dtb. The vc_cma driver is used downstream but not
upstream, making vc_cma_init a suitable predicate symbol.

mkknlimg: Find some more downstream-only strings

See: https://github.com/raspberrypi/linux/issues/1920

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

scripts: Update mkknlimg, just in case

With the removal of the vc_cma driver, mkknlimg lost an indication that
the user had built a downstream kernel. Update the script, adding a few
more key strings, in case it is still being used.

Note that mkknlimg is now deprecated, except to tag kernels as upstream
(283x), and thus requiring upstream DTBs.

See: https://github.com/raspberrypi/linux/issues/2239

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:49 +01:00
Noralf Trønnes
e6452be341 firmware: bcm2835: Support ARCH_BCM270x
Support booting without Device Tree.
Turn on USB power.
Load driver early because of lacking support for deferred probing
in many drivers.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

firmware: bcm2835: Don't turn on USB power

The raspberrypi-power driver is now used to turn on USB power.

This partly reverts commit:
firmware: bcm2835: Support ARCH_BCM270x

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:49 +01:00
Noralf Trønnes
f1a0d92609 char: broadcom: Add vcio module
Add module for accessing the mailbox property channel through
/dev/vcio. Was previously in bcm2708-vcio.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:49 +01:00
popcornmix
4267d004c4 Add Chris Boot's i2c driver
i2c-bcm2708: fixed baudrate

Fixed issue where the wrong CDIV value was set for baudrates below 3815 Hz (for 250MHz bus clock).
In that case the computed CDIV value was more than 0xffff. However the CDIV register width is only 16 bits.
This resulted in incorrect setting of CDIV and higher baudrate than intended.
Example: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0x1704 -> 42430Hz
After correction: 3500Hz -> CDIV=0x11704 -> CDIV(16bit)=0xffff -> 3815Hz
The correct baudrate is shown in the log after the cdiv > 0xffff correction.

Perform I2C combined transactions when possible

Perform I2C combined transactions whenever possible, within the
restrictions of the Broadcomm Serial Controller.

Disable DONE interrupt during TA poll

Prevent interrupt from being triggered if poll is missed and transfer
starts and finishes.

i2c: Make combined transactions optional and disabled by default

i2c: bcm2708: add device tree support

Add DT support to driver and add to .dtsi file.
Setup pins in .dts file.
i2c is disabled by default.

Signed-off-by: Noralf Tronnes <notro@tronnes.org>

bcm2708: don't register i2c controllers when using DT

The devices for the i2c controllers are in the Device Tree.
Only register devices when not using DT.

Signed-off-by: Noralf Tronnes <notro@tronnes.org>

I2C: Only register the I2C device for the current board revision

i2c_bcm2708: Fix clock reference counting

Fix grabbing lock from atomic context in i2c driver

2 main changes:
- check for timeouts in the bcm2708_bsc_setup function as indicated by this comment:
      /* poll for transfer start bit (should only take 1-20 polls) */
  This implies that the setup function can now fail so account for this everywhere it's called
- Removed the clk_get_rate call from inside the setup function as it locks a mutex and that's not ok since we call it from under a spin lock.

i2c-bcm2708: When using DT, leave the GPIO setup to pinctrl

i2c-bcm2708: Increase timeouts to allow larger transfers

Use the timeout value provided by the I2C_TIMEOUT ioctl when waiting
for completion. The default timeout is 1 second.

See: https://github.com/raspberrypi/linux/issues/260

i2c-bcm2708/BCM270X_DT: Add support for I2C2

The third I2C bus (I2C2) is normally reserved for HDMI use. Careless
use of this bus can break an attached display - use with caution.

It is recommended to disable accesses by VideoCore by setting
hdmi_ignore_edid=1 or hdmi_edid_file=1 in config.txt.

The interface is disabled by default - enable using the
i2c2_iknowwhatimdoing DT parameter.

bcm2708-spi: Don't use static pin configuration with DT

Also remove superfluous error checking - the SPI framework ensures the
validity of the chip_select value.

i2c-bcm2708: Remove non-DT support

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

Set the BSC_CLKT clock streching timeout to 35ms as per SMBus specs.

Fixes i2c_bcm2708: Write to FIFO correctly - v2 (#1574)

* i2c: fix i2c_bcm2708: Clear FIFO before sending data

Make sure FIFO gets cleared before trying to send
data in case of a repeated start (COMBINED=Y).

* i2c: fix i2c_bcm2708: Only write to FIFO when not full

Check if FIFO can accept data before writing.
To avoid a peripheral read on the last iteration of a loop,
both bcm2708_bsc_fifo_fill and ~drain are changed as well.
2019-09-17 11:19:48 +01:00
popcornmix
5c30e2eb32 Add cpufreq driver
Signed-off-by: popcornmix <popcornmix@gmail.com>

bcm2835-cpufreq: Change licence to GPLv2

Signed-off-by: Eben Upton <eben.upton@broadcom.com>
Signed-off-by: Dom Cobley <dom@raspberrypi.com>
2019-09-17 11:19:48 +01:00
popcornmix
2f13bd7001 Revert "Add SMI NAND driver"
This reverts commit b1521a1f77c32e0754edf41064f8eac574380634.
2019-09-17 11:19:48 +01:00
Luke Wren
bd22f71dfe Add SMI NAND driver
Signed-off-by: Luke Wren <wren6991@gmail.com>
2019-09-17 11:19:48 +01:00
Martin Sperl
e2975886b2 MISC: bcm2835: smi: use clock manager and fix reload issues
Use clock manager instead of self-made clockmanager.

Also fix some error paths that showd up during development
(especially missing release of dma resources on rmmod)

Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
2019-09-17 11:19:48 +01:00
Luke Wren
ca5f2d36af Add SMI driver
Signed-off-by: Luke Wren <wren6991@gmail.com>
2019-09-17 11:19:48 +01:00
Luke Wren
b14192f81b Add /dev/gpiomem device for rootless user GPIO access
Signed-off-by: Luke Wren <luke@raspberrypi.org>

bcm2835-gpiomem: Fix for ARCH_BCM2835 builds

Build on ARCH_BCM2835, and fail to probe if no IO resource.

See: https://github.com/raspberrypi/linux/issues/1154
2019-09-17 11:19:48 +01:00
Tim Gover
c61c713a58 vcsm: VideoCore shared memory service for BCM2835
Add experimental support for the VideoCore shared memory service.
This allows user processes to allocate memory from VideoCore's
GPU relocatable heap and mmap the buffers. Additionally, the memory
handles can passed to other VideoCore services such as MMAL, OpenMax
and DispmanX

TODO
* This driver was originally released for BCM28155 which has a different
  cache architecture to BCM2835. Consequently, in this release only
  uncached mappings are supported. However, there's no fundamental
  reason which cached mappings cannot be support or BCM2835
* More refactoring is required to remove the typedefs.
* Re-enable the some of the commented out debug-fs statistics which were
  disabled when migrating code from proc-fs.
* There's a lot of code to support sharing of VCSM in order to support
  Android. This could probably done more cleanly or perhaps just
  removed.

Signed-off-by: Tim Gover <timgover@gmail.com>

config: Disable VC_SM for now to fix hang with cutdown kernel

vcsm: Use boolean as it cannot be built as module

On building the bcm_vc_sm as a module we get the following error:

v7_dma_flush_range and do_munmap are undefined in vc-sm.ko.

Fix by making it not an option to build as module

vcsm: Add ioctl for custom cache flushing

vc-sm: Move headers out of arch directory

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

vcsm: Treat EBUSY as success rather than SIGBUS

Currently if two cores access the same page concurrently one will return VM_FAULT_NOPAGE
and the other VM_FAULT_SIGBUS crashing the user code.

Also report when mapping fails.

Signed-off-by: popcornmix <popcornmix@gmail.com>

vcsm: Provide new ioctl to clean/invalidate a 2D block

vcsm: Convert to loading via device tree.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

VCSM: New option to import a DMABUF for VPU use

Takes a dmabuf, and then calls over to the VPU to wrap
it into a suitable handle.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

vcsm: fix multi-platform build

vcsm: add macros for cache functions

vcsm: use dma APIs for cache functions

* Will handle multi-platform builds

vcsm: Fix up macros to avoid breaking numbers used by existing apps

vcsm: Define cache operation constants in user header

Without this change, users have to use raw values (1, 2, 3) to specify
cache operation.

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Support for finding user/vc handle in memory pool

vmcs_sm_{usr,vc}_handle_from_pid_and_address() were failing to find
handle if specified user pointer is not exactly the one that the memory
locking call returned even if the pointer is in range of map/resource.
So fixed the functions to match the range.

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Unify cache manipulating functions

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Fix obscure conditions

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Fix memory leaking on clean_invalid2 ioctl handler

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Describe the use of cache operation constants

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Fix obscure conditions again

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Add no-op cache operation constant

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Revert to do page-table-walk-based cache manipulating on some ioctl calls

On FLUSH, INVALID, CLEAN_INVALID ioctl calls, cache operations based on
page table walk were used in case that the buffer of the cache is not
pinned.  So reverted to do page-table-based cache manipulating.

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Define cache operation constants in user header

Without this change, users have to use raw values (1, 2, 3) to specify
cache operation.

Signed-off-by: Sugizaki Yukimasa <i.can.speak.c.and.basic@gmail.com>

vcsm: Updates for changed vchiq interface

vcsm: Fix an NULL dereference in the import_dmabuf error path

resource was dereferenced even though it was NULL.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

vcsm: Use struct service_creation

vcsm: Fix makefile include on out-of-tree builds

The vc_sm module tries to include the 'fs' directory from the
$(srctree). $(srctree) is already provided by the build system, and
causes the include path to be duplicated.

With -Werror this fails to compile.

Remove the unnecessary variable.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

vcsm: Remove set but unused variable

The 'success' variable is set by the call to vchi_service_close() but never checked.
Remove it, keeping the call in place.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

vcsm: Reduce scope of local functions

The functions:

  vc_vchi_sm_send_msg
  vc_sm_ioctl_alloc
  vc_sm_ioctl_alloc_share
  vc_sm_ioctl_import_dmabuf

Are declared without a prototype. They are not used outside of this
module, thus - convert them to static functions.

Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
2019-09-17 11:19:48 +01:00
popcornmix
cd866377db vc_mem: Add vc_mem driver for querying firmware memory addresses
Signed-off-by: popcornmix <popcornmix@gmail.com>

BCM270x: Move vc_mem

Make the vc_mem module available for ARCH_BCM2835 by moving it.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:48 +01:00
Phil Elwell
d7a881187e Adding bcm2835-sdhost driver, and an overlay to enable it
BCM2835 has two SD card interfaces. This driver uses the other one.

bcm2835-sdhost: Error handling fix, and code clarification

bcm2835-sdhost: Adding overclocking option

Allow a different clock speed to be substitued for a requested 50MHz.
This option is exposed using the "overclock_50" DT parameter.
Note that the sdhost interface is restricted to integer divisions of
core_freq, and the highest sensible option for a core_freq of 250MHz
is 84 (250/3 = 83.3MHz), the next being 125 (250/2) which is much too
high.

Use at your own risk.

bcm2835-sdhost: Round up the overclock, so 62 works for 62.5Mhz

Also only warn once for each overclock setting.

bcm2835-sdhost: Improve error handling and recovery

1) Expose the hw_reset method to the MMC framework, removing many
   internal calls by the driver.

2) Reduce overclock setting on error.

3) Increase timeout to cope with high capacity cards.

4) Add properties and parameters to control pio_limit and debug.

5) Reduce messages at probe time.

bcm2835-sdhost: Further improve overclock back-off

bcm2835-sdhost: Clear HBLC for PIO mode

Also update pio_limit default in overlay README.

bcm2835-sdhost: Add the ERASE capability

See: https://github.com/raspberrypi/linux/issues/1076

bcm2835-sdhost: Ignore CRC7 for MMC CMD1

It seems that the sdhost interface returns CRC7 errors for CMD1,
which is the MMC-specific SEND_OP_COND. Returning these errors to
the MMC layer causes a downward spiral, but ignoring them seems
to be harmless.

bcm2835-mmc/sdhost: Remove ARCH_BCM2835 differences

The bcm2835-mmc driver (and -sdhost driver that copied from it)
contains code to handle SDIO interrupts in a threaded interrupt
handler rather than waking the MMC framework thread. The change
follows a patch from Russell King that adds the facility as the
preferred way of working.

However, the new code path is only present in ARCH_BCM2835
builds, which I have taken to be a way of testing the waters
rather than making the change across the board; I can't see
any technical reason why it wouldn't be enabled for MACH_BCM270X
builds. So this patch standardises on the ARCH_BCM2835 code,
removing the old code paths.

bcm2835-sdhost: Don't log timeout errors unless debug=1

The MMC card-discovery process generates timeouts. This is
expected behaviour, so reporting it to the user serves no purpose.
Suppress the reporting of timeout errors unless the debug flag
is on.

bcm2835-sdhost: Add workaround for odd behaviour on some cards

For reasons not understood, the sdhost driver fails when reading
sectors very near the end of some SD cards. The problem could
be related to the similar issue that reading the final sector
of any card as part of a multiple read never completes, and the
workaround is an extension of the mechanism introduced to solve
that problem which ensures those sectors are always read singly.

bcm2835-sdhost: Major revision

This is a significant revision of the bcm2835-sdhost driver. It
improves on the original in a number of ways:

1) Through the use of CMD23 for reads it appears to avoid problems
   reading some sectors on certain high speed cards.
2) Better atomicity to prevent crashes.
3) Higher performance.
4) Activity logging included, for easier diagnosis in the event
   of a problem.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Restore ATOMIC flag to PIO sg mapping

Allocation problems have been seen in a wireless driver, and
this is the only change which might have been responsible.

SQUASH: bcm2835-sdhost: Only claim one DMA channel

With both MMC controllers enabled there are few DMA channels left. The
bcm2835-sdhost driver only uses DMA in one direction at a time, so it
doesn't need to claim two channels.

See: https://github.com/raspberrypi/linux/issues/1327

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Workaround for "slow" sectors

Some cards have been seen to cause timeouts after certain sectors are
read. This workaround enforces a minimum delay between the stop after
reading one of those sectors and a subsequent data command.

Using CMD23 (SET_BLOCK_COUNT) avoids this problem, so good cards will
not be penalised by this workaround.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Firmware manages the clock divisor

The bcm2835-sdhost driver hands control of the CDIV clock divisor
register to matching firmware, allowing it to adjust to a changing
core clock. This removes the need to use the performance governor or
to enable io_is_busy on the on-demand governor in order to get the
best SD performance.

N.B. As SD clocks must be an integer divisor of the core clock, it is
possible that the SD clock for "turbo" mode can be different (even
lower) than "normal" mode.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Reset the clock in task context

Since reprogramming the clock can now involve a round-trip to the
firmware it must not be done at atomic context, and a tasklet
is not a task.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Don't exit cmd wait loop on error

The FAIL flag can be set in the CMD register before command processing
is complete, leading to spurious "failed to complete" errors. This has
the effect of promoting harmless CRC7 errors during CMD1 processing
into errors that can delay and even prevent booting.

Also:
1) Convert the last KERN_ERROR message in the register dumping to
   KERN_INFO.
2) Remove an unnecessary reset call from  bcm2835_sdhost_add_host.

See: https://github.com/raspberrypi/linux/pull/1492

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: mmc_card_blockaddr fix

Get the definition of mmc_card_blockaddr from drivers/mmc/core/card.h.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: New timer API

mmc: bcm2835-sdhost: Support underclocking

Support underclocking of the SD bus in two ways:
1. using the max-frequency DT property (which currently has no DT
   parameter), and
2. using the exiting sd_overclock parameter.

The two methods differ slightly - in the former the MMC subsystem is
aware of the underclocking, while in the latter it isn't - but the
end results should be the same.

See: https://github.com/raspberrypi/linux/issues/2350

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

mmc: bcm2835-sdhost: Add include

highmem.h (needed for kmap_atomic) is pulled in by one of the other
include files, but only with some CONFIG settings. Make the inclusion
explicit to cater for cases where the CONFIG setting is absent.

See: https://github.com/raspberrypi/linux/issues/2366

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

mmc/bcm2835-sdhost: Recover from MMC_SEND_EXT_CSD

If the user issues an "mmc extcsd read", the SD controller receives
what it thinks is a SEND_IF_COND command with an unexpected data block.
The resulting operations leave the FSM stuck in READWAIT, a state which
persists until the MMC framework resets the controller, by which point
the root filesystem is likely to have been unmounted.

A less heavyweight solution is to detect the condition and nudge the
FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.

N.B. This workaround was essentially discovered by accident and without
a full understanding the inner workings of the controller, so it is
fortunate that the "fix" only modifies error paths.

See: https://github.com/raspberrypi/linux/issues/2728

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

mmc: bcm2835-sdhost: Fix warnings on arm64

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-sdhost: Allow for sg entries that cross pages

The dma_complete handling code calculates a virtual address for a page
then adds an offset, but if the offset is more than a page and HIGHMEM
is in use then the summed address could be in an unmapped (or just
incorrect) page.

The upstream SDHOST driver allows for this possibility - copy the code
that does so.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:48 +01:00
gellert
b19858d151 MMC: added alternative MMC driver
mmc: Disable CMD23 transfers on all cards

Pending wire-level investigation of these types of transfers
and associated errors on bcm2835-mmc, disable for now. Fallback of
CMD18/CMD25 transfers will be used automatically by the MMC layer.

Reported/Tested-by: Gellert Weisz <gellert@raspberrypi.org>

mmc: bcm2835-mmc: enable DT support for all architectures

Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now.
Enable Device Tree support for all architectures.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

mmc: bcm2835-mmc: fix probe error handling

Probe error handling is broken in several places.
Simplify error handling by using device managed functions.
Replace pr_{err,info} with dev_{err,info}.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm2835-mmc: Add locks when accessing sdhost registers

bcm2835-mmc: Add range of debug options for slowing things down

bcm2835-mmc: Add option to disable some delays

bcm2835-mmc: Add option to disable MMC_QUIRK_BLK_NO_CMD23

bcm2835-mmc: Default to disabling MMC_QUIRK_BLK_NO_CMD23

bcm2835-mmc: Adding overclocking option

Allow a different clock speed to be substitued for a requested 50MHz.
This option is exposed using the "overclock_50" DT parameter.
Note that the mmc interface is restricted to EVEN integer divisions of
250MHz, and the highest sensible option is 63 (250/4 = 62.5), the
next being 125 (250/2) which is much too high.

Use at your own risk.

bcm2835-mmc: Round up the overclock, so 62 works for 62.5Mhz

Also only warn once for each overclock setting.

mmc: bcm2835-mmc: Make available on ARCH_BCM2835

Make the bcm2835-mmc driver available for use on ARCH_BCM2835.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

BCM270x_DT: add bcm2835-mmc entry

Add Device Tree entry for bcm2835-mmc.
In non-DT mode, don't add the device in the board file.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm2835-mmc: Don't overwrite MMC capabilities from DT

bcm2835-mmc: Don't override bus width capabilities from devicetree

Take out the force setting of the MMC_CAP_4_BIT_DATA host capability
so that the result read from devicetree via mmc_of_parse() is
preserved.

bcm2835-mmc: Only claim one DMA channel

With both MMC controllers enabled there are few DMA channels left. The
bcm2835-mmc driver only uses DMA in one direction at a time, so it
doesn't need to claim two channels.

See: https://github.com/raspberrypi/linux/issues/1327

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-mmc: New timer API

mmc: bcm2835-mmc: Support underclocking

Support underclocking of the SD bus using the max-frequency DT property
(which currently has no DT parameter). The sd_overclock parameter
already provides another way to achieve the same thing which should be
equivalent in end result, but it is a bug not to support max-frequency
as well.

See: https://github.com/raspberrypi/linux/issues/2350

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

mmc/bcm2835: Recover from MMC_SEND_EXT_CSD

If the user issues an "mmc extcsd read", the SD controller receives
what it thinks is a SEND_IF_COND command with an unexpected data block.
The resulting operations leave the FSM stuck in READWAIT, a state which
persists until the MMC framework resets the controller, by which point
the root filesystem is likely to have been unmounted.

A less heavyweight solution is to detect the condition and nudge the
FSM by asserting the (self-clearing) FORCE_DATA_MODE bit.

N.B. This workaround was essentially discovered by accident and without
a full understanding the inner workings of the controller, so it is
fortunate that the "fix" only modifies error paths.

See: https://github.com/raspberrypi/linux/issues/2728

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

bcm2835-mmc: Fix DMA channel leak

The BCM2835 MMC host driver requests a DMA channel on probe but neglects
to release the channel in the probe error path and on driver unbind.

I'm seeing this happen on every boot of the Compute Module 3: On first
driver probe, DMA channel 2 is allocated and then leaked with a "could
not get clk, deferring probe" message. On second driver probe, channel 4
is allocated.

Fix it.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>

bcm2835-mmc: Fix struct mmc_host leak on probe

The BCM2835 MMC host driver requests the bus address of the host's
register map on probe.  If that fails, the driver leaks the struct
mmc_host allocated earlier.

Fix it.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>

bcm2835-mmc: Fix duplicate free_irq() on remove

The BCM2835 MMC host driver requests its interrupt as a device-managed
resource, so the interrupt is automatically freed after the driver is
unbound.

However on driver unbind, bcm2835_mmc_remove() frees the interrupt
explicitly to avoid invocation of the interrupt handler after driver
structures have been torn down.

The interrupt is thus freed twice, leading to a WARN splat in
__free_irq().  Fix by not requesting the interrupt as a device-managed
resource.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>

bcm2835-mmc: Handle mmc_add_host() errors

The BCM2835 MMC host driver calls mmc_add_host() but doesn't check its
return value.  Errors occurring in that function are therefore not
handled.  Fix it.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>

bcm2835-mmc: Deduplicate reset of driver data on remove

The BCM2835 MMC host driver sets the device's driver data pointer to
NULL on ->remove() even though the driver core subsequently does the
same in __device_release_driver().  Drop the duplicate assignment.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Cc: Frank Pavlic <f.pavlic@kunbus.de>
2019-09-17 11:19:48 +01:00
Florian Meier
e294409342 dmaengine: Add support for BCM2708
Add support for DMA controller of BCM2708 as used in the Raspberry Pi.
Currently it only supports cyclic DMA.

Signed-off-by: Florian Meier <florian.meier@koalo.de>

dmaengine: expand functionality by supporting scatter/gather transfers sdhci-bcm2708 and dma.c: fix for LITE channels

DMA: fix cyclic LITE length overflow bug

dmaengine: bcm2708: Remove chancnt affectations

Mirror bcm2835-dma.c commit 9eba5536a7:
chancnt is already filled by dma_async_device_register, which uses the channel
list to know how much channels there is.

Since it's already filled, we can safely remove it from the drivers' probe
function.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: overwrite dreq only if it is not set

dreq is set when the DMA channel is fetched from Device Tree.
slave_id is set using dmaengine_slave_config().
Only overwrite dreq with slave_id if it is not set.

dreq/slave_id in the cyclic DMA case is not touched, because I don't
have hardware to test with.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: do device registration in the board file

Don't register the device in the driver. Do it in the board file.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: don't restrict DT support to ARCH_BCM2835

Both ARCH_BCM2835 and ARCH_BCM270x are built with OF now.
Add Device Tree support to the non ARCH_BCM2835 case.
Use the same driver name regardless of architecture.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

BCM270x_DT: add bcm2835-dma entry

Add Device Tree entry for bcm2835-dma.
The entry doesn't contain any resources since they are handled
by the arch/arm/mach-bcm270x/dma.c driver.
In non-DT mode, don't add the device in the board file.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm2708-dmaengine: Add debug options

BCM270x: Add memory and irq resources to dmaengine device and DT

Prepare for merging of the legacy DMA API arch driver dma.c
with bcm2708-dmaengine by adding memory and irq resources both
to platform file device and Device Tree node.
Don't use BCM_DMAMAN_DRIVER_NAME so we don't have to include mach/dma.h

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: Merge with arch dma.c driver and disable dma.c

Merge the legacy DMA API driver with bcm2708-dmaengine.
This is done so we can use bcm2708_fb on ARCH_BCM2835 (mailbox
driver is also needed).

Changes to the dma.c code:
- Use BIT() macro.
- Cutdown some comments to one line.
- Add mutex to vc_dmaman and use this, since the dev lock is locked
  during probing of the engine part.
- Add global g_dmaman variable since drvdata is used by the engine part.
- Restructure for readability:
  vc_dmaman_chan_alloc()
  vc_dmaman_chan_free()
  bcm_dma_chan_free()
- Restructure bcm_dma_chan_alloc() to simplify error handling.
- Use device irq resources instead of hardcoded bcm_dma_irqs table.
- Remove dev_dmaman_register() and code it directly.
- Remove dev_dmaman_deregister() and code it directly.
- Simplify bcm_dmaman_probe() using devm_* functions.
- Get dmachans from DT if available.
- Keep 'dma.dmachans' module argument name for backwards compatibility.

Make it available on ARCH_BCM2835 as well.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: set residue_granularity field

bcm2708-dmaengine supports residue reporting at burst level
but didn't report this via the residue_granularity field.

Without this field set properly we get playback issues with I2S cards.

dmaengine: bcm2708-dmaengine: Fix memory leak when stopping a running transfer

bcm2708-dmaengine: Use more DMA channels (but not 12)

1) Only the bcm2708_fb drivers uses the legacy DMA API, and
it requires a BULK-capable channel, so all other types
(FAST, NORMAL and LITE) can be made available to the regular
DMA API.

2) DMA channels 11-14 share an interrupt. The driver can't
handle this, so don't use channels 12-14 (12 was used, probably
because it appears to have an interrupt, but in reality that
interrupt is for activity on ANY channel). This may explain
a lockup encountered when running out of DMA channels.

The combined effect of this patch is to leave 7 DMA channels
available + channel 0 for bcm2708_fb via the legacy API.

See: https://github.com/raspberrypi/linux/issues/1110
     https://github.com/raspberrypi/linux/issues/1108

dmaengine: bcm2708: Make legacy API available for bcm2835-dma

bcm2708_fb uses the legacy DMA API, so in order to start using
bcm2835-dma, bcm2835-dma has to support the legacy API. Make this
possible by exporting bcm_dmaman_probe() and bcm_dmaman_remove().

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: Change DT compatible string

Both bcm2835-dma and bcm2708-dmaengine have the same compatible string.
So change compatible to "brcm,bcm2708-dma".

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dmaengine: bcm2708: Remove driver but keep legacy API

Dropping non-DT support means we don't need this driver,
but we still need the legacy DMA API.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm2708-dmaengine - Fix arm64 portability/build issues

dma-bcm2708: Fix module compilation of CONFIG_DMA_BCM2708

bcm2708-dmaengine.c defines functions like bcm_dma_start which are
defined as well in dma-bcm2708.h as inline versions when
CONFIG_DMA_BCM2708 is not defined. This works fine when
CONFIG_DMA_BCM2708 is built in, but when it is selected as module build
fails with redefinition errors because in the build system when
CONFIG_DMA_BCM2708 is selected as module, the macro becomes
CONFIG_DMA_BCM2708_MODULE.

This patch makes the header use CONFIG_DMA_BCM2708_MODULE too when
available.

Fixes https://github.com/raspberrypi/linux/issues/2056

Signed-off-by: Andrei Gherzan <andrei@gherzan.com>
2019-09-17 11:19:48 +01:00
Harm Hanemaaijer
e23ccc64ce Speed up console framebuffer imageblit function
Especially on platforms with a slower CPU but a relatively high
framebuffer fill bandwidth, like current ARM devices, the existing
console monochrome imageblit function used to draw console text is
suboptimal for common pixel depths such as 16bpp and 32bpp. The existing
code is quite general and can deal with several pixel depths. By creating
special case functions for 16bpp and 32bpp, by far the most common pixel
formats used on modern systems, a significant speed-up is attained
which can be readily felt on ARM-based devices like the Raspberry Pi
and the Allwinner platform, but should help any platform using the
fb layer.

The special case functions allow constant folding, eliminating a number
of instructions including divide operations, and allow the use of an
unrolled loop, eliminating instructions with a variable shift size,
reducing source memory access instructions, and eliminating excessive
branching. These unrolled loops also allow much better code optimization
by the C compiler. The code that selects which optimized variant is used
is also simplified, eliminating integer divide instructions.

The speed-up, measured by timing 'cat file.txt' in the console, varies
between 40% and 70%, when testing on the Raspberry Pi and Allwinner
ARM-based platforms, depending on font size and the pixel depth, with
the greater benefit for 32bpp.

Signed-off-by: Harm Hanemaaijer <fgenfb@yahoo.com>
2019-09-17 11:19:47 +01:00
Siarhei Siamashka
6430d8468b fbdev: add FBIOCOPYAREA ioctl
Based on the patch authored by Ali Gholami Rudi at
    https://lkml.org/lkml/2009/7/13/153

Provide an ioctl for userspace applications, but only if this operation
is hardware accelerated (otherwide it does not make any sense).

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

bcm2708_fb: Add ioctl for reading gpu memory through dma

video: bcm2708_fb: Add compat_ioctl support.

When using a 64 bit kernel with 32 bit userspace we need
compat ioctl handling for FBIODMACOPY as one of the
parameters is a pointer.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:47 +01:00
popcornmix
26e14d0592 bcm2708 framebuffer driver
Signed-off-by: popcornmix <popcornmix@gmail.com>

bcm2708_fb : Implement blanking support using the mailbox property interface

bcm2708_fb: Add pan and vsync controls

bcm2708_fb: DMA acceleration for fb_copyarea

Based on http://www.raspberrypi.org/phpBB3/viewtopic.php?p=62425#p62425
Also used Simon's dmaer_master module as a reference for tweaking DMA
settings for better performance.

For now busylooping only. IRQ support might be added later.
With non-overclocked Raspberry Pi, the performance is ~360 MB/s
for simple copy or ~260 MB/s for two-pass copy (used when dragging
windows to the right).

In the case of using DMA channel 0, the performance improves
to ~440 MB/s.

For comparison, VFP optimized CPU copy can only do ~114 MB/s in
the same conditions (hindered by reading uncached source buffer).

Signed-off-by: Siarhei Siamashka <siarhei.siamashka@gmail.com>

bcm2708_fb: report number of dma copies

Add a counter (exported via debugfs) reporting the
number of dma copies that the framebuffer driver
has done, in order to help evaluate different
optimization strategies.

Signed-off-by: Luke Diamand <luked@broadcom.com>

bcm2708_fb: use IRQ for DMA copies

The copyarea ioctl() uses DMA to speed things along. This
was busy-waiting for completion. This change supports using
an interrupt instead for larger transfers. For small
transfers, busy-waiting is still likely to be faster.

Signed-off-by: Luke Diamand <luke@diamand.org>

bcm2708: Make ioctl logging quieter

video: fbdev: bcm2708_fb: Don't panic on error

No need to panic the kernel if the video driver fails.
Just print a message and return an error.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

fbdev: bcm2708_fb: Add ARCH_BCM2835 support

Add Device Tree support.
Pass the device to dma_alloc_coherent() in order to get the
correct bus address on ARCH_BCM2835.
Use the new DMA legacy API header file.
Including <mach/platform.h> is not necessary.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

BCM270x_DT: Add bcm2708-fb device

Add bcm2708-fb to Device Tree and don't add the
platform device when booting in DT mode.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

Cleanup of bcm2708_fb file to kernel coding standards

Some minor change to function - remove a use of
in_atomic, plus replacing various debug messages
that manually specify the function name with
("%s",.__func__)

Signed-off-by: James Hughes <james.hughes@raspberrypi.org>

video: bcm2708_fb: Try allocating on the ARM and passing to VPU

Currently the VPU allocates the contiguous buffer for the
framebuffer.
Try an alternate path first where we use dma_alloc_coherent
and pass the buffer to the VPU. Should the VPU firmware not
support that path, then free the buffer and revert to the
old behaviour of using the VPU allocation.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
2019-09-17 11:19:47 +01:00
popcornmix
678be9f7f4 Add dwc_otg driver
Signed-off-by: popcornmix <popcornmix@gmail.com>

usb: dwc: fix lockdep false positive

Signed-off-by: Kari Suvanto <karis79@gmail.com>

usb: dwc: fix inconsistent lock state

Signed-off-by: Kari Suvanto <karis79@gmail.com>

Add FIQ patch to dwc_otg driver. Enable with dwc_otg.fiq_fix_enable=1. Should give about 10% more ARM performance.
Thanks to Gordon and Costas

Avoid dynamic memory allocation for channel lock in USB driver. Thanks ddv2005.

Add NAK holdoff scheme. Enabled by default, disable with dwc_otg.nak_holdoff_enable=0. Thanks gsh

Make sure we wait for the reset to finish

dwc_otg: fix bug in dwc_otg_hcd.c resulting in silent kernel
	 memory corruption, escalating to OOPS under high USB load.

dwc_otg: Fix unsafe access of QTD during URB enqueue

In dwc_otg_hcd_urb_enqueue during qtd creation, it was possible that the
transaction could complete almost immediately after the qtd was assigned
to a host channel during URB enqueue, which meant the qtd pointer was no
longer valid having been completed and removed. Usually, this resulted in
an OOPS during URB submission. By predetermining whether transactions
need to be queued or not, this unsafe pointer access is avoided.

This bug was only evident on the Pi model A where a device was attached
that had no periodic endpoints (e.g. USB pendrive or some wlan devices).

dwc_otg: Fix incorrect URB allocation error handling

If the memory allocation for a dwc_otg_urb failed, the kernel would OOPS
because for some reason a member of the *unallocated* struct was set to
zero. Error handling changed to fail correctly.

dwc_otg: fix potential use-after-free case in interrupt handler

If a transaction had previously aborted, certain interrupts are
enabled to track error counts and reset where necessary. On IN
endpoints the host generates an ACK interrupt near-simultaneously
with completion of transfer. In the case where this transfer had
previously had an error, this results in a use-after-free on
the QTD memory space with a 1-byte length being overwritten to
0x00.

dwc_otg: add handling of SPLIT transaction data toggle errors

Previously a data toggle error on packets from a USB1.1 device behind
a TT would result in the Pi locking up as the driver never handled
the associated interrupt. Patch adds basic retry mechanism and
interrupt acknowledgement to cater for either a chance toggle error or
for devices that have a broken initial toggle state (FT8U232/FT232BM).

dwc_otg: implement tasklet for returning URBs to usbcore hcd layer

The dwc_otg driver interrupt handler for transfer completion will spend
a very long time with interrupts disabled when a URB is completed -
this is because usb_hcd_giveback_urb is called from within the handler
which for a USB device driver with complicated processing (e.g. webcam)
will take an exorbitant amount of time to complete. This results in
missed completion interrupts for other USB packets which lead to them
being dropped due to microframe overruns.

This patch splits returning the URB to the usb hcd layer into a
high-priority tasklet. This will have most benefit for isochronous IN
transfers but will also have incidental benefit where multiple periodic
devices are active at once.

dwc_otg: fix NAK holdoff and allow on split transactions only

This corrects a bug where if a single active non-periodic endpoint
had at least one transaction in its qh, on frnum == MAX_FRNUM the qh
would get skipped and never get queued again. This would result in
a silent device until error detection (automatic or otherwise) would
either reset the device or flush and requeue the URBs.

Additionally the NAK holdoff was enabled for all transactions - this
would potentially stall a HS endpoint for 1ms if a previous error state
enabled this interrupt and the next response was a NAK. Fix so that
only split transactions get held off.

dwc_otg: Call usb_hcd_unlink_urb_from_ep with lock held in completion handler

usb_hcd_unlink_urb_from_ep must be called with the HCD lock held.  Calling it
asynchronously in the tasklet was not safe (regression in
c4564d4a1a).

This change unlinks it from the endpoint prior to queueing it for handling in
the tasklet, and also adds a check to ensure the urb is OK to be unlinked
before doing so.

NULL pointer dereference kernel oopses had been observed in usb_hcd_giveback_urb
when a USB device was unplugged/replugged during data transfer.  This effect
was reproduced using automated USB port power control, hundreds of replug
events were performed during active transfers to confirm that the problem was
eliminated.

USB fix using a FIQ to implement split transactions

This commit adds a FIQ implementaion that schedules
the split transactions using a FIQ so we don't get
held off by the interrupt latency of Linux

dwc_otg: fix device attributes and avoid kernel warnings on boot

dcw_otg: avoid logging function that can cause panics

See: https://github.com/raspberrypi/firmware/issues/21
Thanks to cleverca22 for fix

dwc_otg: mask correct interrupts after transaction error recovery

The dwc_otg driver will unmask certain interrupts on a transaction
that previously halted in the error state in order to reset the
QTD error count. The various fine-grained interrupt handlers do not
consider that other interrupts besides themselves were unmasked.

By disabling the two other interrupts only ever enabled in DMA mode
for this purpose, we can avoid unnecessary function calls in the
IRQ handler. This will also prevent an unneccesary FIQ interrupt
from being generated if the FIQ is enabled.

dwc_otg: fiq: prevent FIQ thrash and incorrect state passing to IRQ

In the case of a transaction to a device that had previously aborted
due to an error, several interrupts are enabled to reset the error
count when a device responds. This has the side-effect of making the
FIQ thrash because the hardware will generate multiple instances of
a NAK on an IN bulk/interrupt endpoint and multiple instances of ACK
on an OUT bulk/interrupt endpoint. Make the FIQ mask and clear the
associated interrupts.

Additionally, on non-split transactions make sure that only unmasked
interrupts are cleared. This caused a hard-to-trigger but serious
race condition when you had the combination of an endpoint awaiting
error recovery and a transaction completed on an endpoint - due to
the sequencing and timing of interrupts generated by the dwc_otg core,
it was possible to confuse the IRQ handler.

Fix function tracing

dwc_otg: whitespace cleanup in dwc_otg_urb_enqueue

dwc_otg: prevent OOPSes during device disconnects

The dwc_otg_urb_enqueue function is thread-unsafe. In particular the
access of urb->hcpriv, usb_hcd_link_urb_to_ep, dwc_otg_urb->qtd and
friends does not occur within a critical section and so if a device
was unplugged during activity there was a high chance that the
usbcore hub_thread would try to disable the endpoint with partially-
formed entries in the URB queue. This would result in BUG() or null
pointer dereferences.

Fix so that access of urb->hcpriv, enqueuing to the hardware and
adding to usbcore endpoint URB lists is contained within a single
critical section.

dwc_otg: prevent BUG() in TT allocation if hub address is > 16

A fixed-size array is used to track TT allocation. This was
previously set to 16 which caused a crash because
dwc_otg_hcd_allocate_port would read past the end of the array.

This was hit if a hub was plugged in which enumerated as addr > 16,
due to previous device resets or unplugs.

Also add #ifdef FIQ_DEBUG around hcd->hub_port_alloc[], which grows
to a large size if 128 hub addresses are supported. This field is
for debug only for tracking which frame an allocate happened in.

dwc_otg: make channel halts with unknown state less damaging

If the IRQ received a channel halt interrupt through the FIQ
with no other bits set, the IRQ would not release the host
channel and never complete the URB.

Add catchall handling to treat as a transaction error and retry.

dwc_otg: fiq_split: use TTs with more granularity

This fixes certain issues with split transaction scheduling.

- Isochronous multi-packet OUT transactions now hog the TT until
  they are completed - this prevents hubs aborting transactions
  if they get a periodic start-split out-of-order
- Don't perform TT allocation on non-periodic endpoints - this
  allows simultaneous use of the TT's bulk/control and periodic
  transaction buffers

This commit will mainly affect USB audio playback.

dwc_otg: fix potential sleep while atomic during urb enqueue

Fixes a regression introduced with eb1b482a. Kmalloc called from
dwc_otg_hcd_qtd_add / dwc_otg_hcd_qtd_create did not always have
the GPF_ATOMIC flag set. Force this flag when inside the larger
critical section.

dwc_otg: make fiq_split_enable imply fiq_fix_enable

Failing to set up the FIQ correctly would result in
"IRQ 32: nobody cared" errors in dmesg.

dwc_otg: prevent crashes on host port disconnects

Fix several issues resulting in crashes or inconsistent state
if a Model A root port was disconnected.

- Clean up queue heads properly in kill_urbs_in_qh_list by
  removing the empty QHs from the schedule lists
- Set the halt status properly to prevent IRQ handlers from
  using freed memory
- Add fiq_split related cleanup for saved registers
- Make microframe scheduling reclaim host channels if
  active during a disconnect
- Abort URBs with -ESHUTDOWN status response, informing
  device drivers so they respond in a more correct fashion
  and don't try to resubmit URBs
- Prevent IRQ handlers from attempting to handle channel
  interrupts if the associated URB was dequeued (and the
  driver state was cleared)

dwc_otg: prevent leaking URBs during enqueue

A dwc_otg_urb would get leaked if the HCD enqueue function
failed for any reason. Free the URB at the appropriate points.

dwc_otg: Enable NAK holdoff for control split transactions

Certain low-speed devices take a very long time to complete a
data or status stage of a control transaction, producing NAK
responses until they complete internal processing - the USB2.0
spec limit is up to 500mS. This causes the same type of interrupt
storm as seen with USB-serial dongles prior to c8edb238.

In certain circumstances, usually while booting, this interrupt
storm could cause SD card timeouts.

dwc_otg: Fix for occasional lockup on boot when doing a USB reset

dwc_otg: Don't issue traffic to LS devices in FS mode

Issuing low-speed packets when the root port is in full-speed mode
causes the root port to stop responding. Explicitly fail when
enqueuing URBs to a LS endpoint on a FS bus.

Fix ARM architecture issue with local_irq_restore()

If local_fiq_enable() is called before a local_irq_restore(flags) where
the flags variable has the F bit set, the FIQ will be erroneously disabled.

Fixup arch_local_irq_restore to avoid trampling the F bit in CPSR.

Also fix some of the hacks previously implemented for previous dwc_otg
incarnations.

dwc_otg: fiq_fsm: Base commit for driver rewrite

This commit removes the previous FIQ fixes entirely and adds fiq_fsm.

This rewrite features much more complete support for split transactions
and takes into account several OTG hardware bugs. High-speed
isochronous transactions are also capable of being performed by fiq_fsm.

All driver options have been removed and replaced with:
  - dwc_otg.fiq_enable (bool)
  - dwc_otg.fiq_fsm_enable (bool)
  - dwc_otg.fiq_fsm_mask (bitmask)
  - dwc_otg.nak_holdoff (unsigned int)

Defaults are specified such that fiq_fsm behaves similarly to the
previously implemented FIQ fixes.

fiq_fsm: Push error recovery into the FIQ when fiq_fsm is used

If the transfer associated with a QTD failed due to a bus error, the HCD
would retry the transfer up to 3 times (implementing the USB2.0
three-strikes retry in software).

Due to the masking mechanism used by fiq_fsm, it is only possible to pass
a single interrupt through to the HCD per-transfer.

In this instance host channels would fall off the radar because the error
reset would function, but the subsequent channel halt would be lost.

Push the error count reset into the FIQ handler.

fiq_fsm: Implement timeout mechanism

For full-speed endpoints with a large packet size, interrupt latency
runs the risk of the FIQ starting a transaction too late in a full-speed
frame. If the device is still transmitting data when EOF2 for the
downstream frame occurs, the hub will disable the port. This change is
not reflected in the hub status endpoint and the device becomes
unresponsive.

Prevent high-bandwidth transactions from being started too late in a
frame. The mechanism is not guaranteed: a combination of bit stuffing
and hub latency may still result in a device overrunning.

fiq_fsm: fix bounce buffer utilisation for Isochronous OUT

Multi-packet isochronous OUT transactions were subject to a few bounday
bugs. Fix them.

Audio playback is now much more robust: however, an issue stands with
devices that have adaptive sinks - ALSA plays samples too fast.

dwc_otg: Return full-speed frame numbers in HS mode

The frame counter increments on every *microframe* in high-speed mode.
Most device drivers expect this number to be in full-speed frames - this
caused considerable confusion to e.g. snd_usb_audio which uses the
frame counter to estimate the number of samples played.

fiq_fsm: save PID on completion of interrupt OUT transfers

Also add edge case handling for interrupt transports.

Note that for periodic split IN, data toggles are unimplemented in the
OTG host hardware - it unconditionally accepts any PID.

fiq_fsm: add missing case for fiq_fsm_tt_in_use()

Certain combinations of bitrate and endpoint activity could
result in a periodic transaction erroneously getting started
while the previous Isochronous OUT was still active.

fiq_fsm: clear hcintmsk for aborted transactions

Prevents the FIQ from erroneously handling interrupts
on a timed out channel.

fiq_fsm: enable by default

fiq_fsm: fix dequeues for non-periodic split transactions

If a dequeue happened between the SSPLIT and CSPLIT phases of the
transaction, the HCD would never receive an interrupt.

fiq_fsm: Disable by default

fiq_fsm: Handle HC babble errors

The HCTSIZ transfer size field raises a babble interrupt if
the counter wraps. Handle the resulting interrupt in this case.

dwc_otg: fix interrupt registration for fiq_enable=0

Additionally make the module parameter conditional for wherever
hcd->fiq_state is touched.

fiq_fsm: Enable by default

dwc_otg: Fix various issues with root port and transaction errors

Process the host port interrupts correctly (and don't trample them).
Root port hotplug now functional again.

Fix a few thinkos with the transaction error passthrough for fiq_fsm.

fiq_fsm: Implement hack for Split Interrupt transactions

Hubs aren't too picky about which endpoint we send Control type split
transactions to. By treating Interrupt transfers as Control, it is
possible to use the non-periodic queue in the OTG core as well as the
non-periodic FIFOs in the hub itself. This massively reduces the
microframe exclusivity/contention that periodic split transactions
otherwise have to enforce.

It goes without saying that this is a fairly egregious USB specification
violation, but it works.

Original idea by Hans Petter Selasky @ FreeBSD.org.

dwc_otg: FIQ support on SMP. Set up FIQ stack and handler on Core 0 only.

dwc_otg: introduce fiq_fsm_spin(un|)lock()

SMP safety for the FIQ relies on register read-modify write cycles being
completed in the correct order. Several places in the DWC code modify
registers also touched by the FIQ. Protect these by a bare-bones lock
mechanism.

This also makes it possible to run the FIQ and IRQ handlers on different
cores.

fiq_fsm: fix build on bcm2708 and bcm2709 platforms

dwc_otg: put some barriers back where they should be for UP

bcm2709/dwc_otg: Setup FIQ on core 1 if >1 core active

dwc_otg: fixup read-modify-write in critical paths

Be more careful about read-modify-write on registers that the FIQ
also touches.

Guard fiq_fsm_spin_lock with fiq_enable check

fiq_fsm: Falling out of the state machine isn't fatal

This edge case can be hit if the port is disabled while the FIQ is
in the middle of a transaction. Make the effects less severe.

Also get rid of the useless return value.

squash: dwc_otg: Allow to build without SMP

usb: core: make overcurrent messages more prominent

Hub overcurrent messages are more serious than "debug". Increase loglevel.

usb: dwc_otg: Don't use dma_to_virt()

Commit 6ce0d20 changes dma_to_virt() which breaks this driver.
Open code the old dma_to_virt() implementation to work around this.

Limit the use of __bus_to_virt() to cases where transfer_buffer_length
is set and transfer_buffer is not set. This is done to increase the
chance that this driver will also work on ARCH_BCM2835.

transfer_buffer should not be NULL if the length is set, but the
comment in the code indicates that there are situations where this
might happen. drivers/usb/isp1760/isp1760-hcd.c also has a similar
comment pointing to a possible: 'usb storage / SCSI bug'.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dwc_otg: Fix crash when fiq_enable=0

dwc_otg: fiq_fsm: Make high-speed isochronous strided transfers work properly

Certain low-bandwidth high-speed USB devices (specialist audio devices,
compressed-frame webcams) have packet intervals > 1 microframe.

Stride these transfers in the FIQ by using the start-of-frame interrupt
to restart the channel at the right time.

dwc_otg: Force host mode to fix incorrect compute module boards

dwc_otg: Add ARCH_BCM2835 support

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dwc_otg: Simplify FIQ irq number code

Dropping ATAGS means we can simplify the FIQ irq number code.
Also add error checking on the returned irq number.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dwc_otg: Remove duplicate gadget probe/unregister function

dwc_otg: Properly set the HFIR

Douglas Anderson reported:

According to the most up to date version of the dwc2 databook, the FRINT
field of the HFIR register should be programmed to:
* 125 us * (PHY clock freq for HS) - 1
* 1000 us * (PHY clock freq for FS/LS) - 1

This is opposed to older versions of the doc that claimed it should be:
* 125 us * (PHY clock freq for HS)
* 1000 us * (PHY clock freq for FS/LS)

and reported lower timing jitter on a USB analyser

dcw_otg: trim xfer length when buffer larger than allocated size is received

dwc_otg: Don't free qh align buffers in atomic context

dwc_otg: Enable the hack for Split Interrupt transactions by default

dwc_otg.fiq_fsm_mask=0xF has long been a suggestion for users with audio stutters or other USB bandwidth issues.
So far we are aware of many success stories but no failure caused by this setting.
Make it a default to learn more.

See: https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=70437

Signed-off-by: popcornmix <popcornmix@gmail.com>

dwc_otg: Use kzalloc when suitable

dwc_otg: Pass struct device to dma_alloc*()

This makes it possible to get the bus address from Device Tree.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

dwc_otg: fix summarize urb->actual_length for isochronous transfers

Kernel does not copy input data of ISO transfers to userspace
if actual_length is set only in ISO transfers and not summarized
in urb->actual_length. Fixes raspberrypi/linux#903

fiq_fsm: Use correct states when starting isoc OUT transfers

In fiq_fsm_start_next_periodic() if an isochronous OUT transfer
was selected, no regard was given as to whether this was a single-packet
transfer or a multi-packet staged transfer.

For single-packet transfers, this had the effect of repeatedly sending
OUT packets with bogus data and lengths.

Eventually if the channel was repeatedly enabled enough times, this
would lock up the OTG core and no further bus transfers would happen.

Set the FSM state up properly if we select a single-packet transfer.

Fixes https://github.com/raspberrypi/linux/issues/1842

dwc_otg: make nak_holdoff work as intended with empty queues

If URBs reading from non-periodic split endpoints were dequeued and
the last transfer from the endpoint was a NAK handshake, the resulting
qh->nak_frame value was stale which would result in unnecessarily long
polling intervals for the first subsequent transfer with a fresh URB.

Fixup qh->nak_frame in dwc_otg_hcd_urb_dequeue and also guard against
a case where a single URB is submitted to the endpoint, a NAK was
received on the transfer immediately prior to receiving data and the
device subsequently resubmits another URB past the qh->nak_frame interval.

Fixes https://github.com/raspberrypi/linux/issues/1709

dwc_otg: fix split transaction data toggle handling around dequeues

See https://github.com/raspberrypi/linux/issues/1709

Fix several issues regarding endpoint state when URBs are dequeued
- If the HCD is disconnected, flush FIQ-enabled channels properly
- Save the data toggle state for bulk endpoints if the last transfer
  from an endpoint where URBs were dequeued returned a data packet
- Reset hc->start_pkt_count properly in assign_and_init_hc()

dwc_otg: fix several potential crash sources

On root port disconnect events, the host driver state is cleared and
in-progress host channels are forcibly stopped. This doesn't play
well with the FIQ running in the background, so:
- Guard the disconnect callback with both the host spinlock and FIQ
  spinlock
- Move qtd dereference in dwc_otg_handle_hc_fsm() after the early-out
  so we don't dereference a qtd that has gone away
- Turn catch-all BUG()s in dwc_otg_handle_hc_fsm() into warnings.

dwc_otg: delete hcd->channel_lock

The lock serves no purpose as it is only held while the HCD spinlock
is already being held.

dwc_otg: remove unnecessary dma-mode channel halts on disconnect interrupt

Host channels are already halted in kill_urbs_in_qh_list() with the
subsequent interrupt processing behaving as if the URB was dequeued
via HCD callback.

There's no need to clobber the host channel registers a second time
as this exposes races between the driver and host channel resulting
in hcd->free_hc_list becoming corrupted.

dwcotg: Allow to build without FIQ on ARM64

Signed-off-by: popcornmix <popcornmix@gmail.com>

dwc_otg: make periodic scheduling behave properly for FS buses

If the root port is in full-speed mode, transfer times at 12mbit/s
would be calculated but matched against high-speed quotas.

Reinitialise hcd->frame_usecs[i] on each port enable event so that
full-speed bandwidth can be tracked sensibly.

Also, don't bother using the FIQ for transfers when in full-speed
mode - at the slower bus speed, interrupt frequency is reduced by
an order of magnitude.

Related issue: https://github.com/raspberrypi/linux/issues/2020

dwc_otg: fiq_fsm: Make isochronous compatibility checks work properly

Get rid of the spammy printk and local pointer mangling.
Also, there is a nominal benefit for using fiq_fsm for isochronous
transfers in FS mode (~1.1k IRQs per second vs 2.1k IRQs per second)
so remove the root port speed check.

dwc_otg: add module parameter int_ep_interval_min

Add a module parameter (defaulting to ignored) that clamps the polling rate
of high-speed Interrupt endpoints to a minimum microframe interval.

The parameter is modifiable at runtime as it is used when activating new
endpoints (such as on device connect).

dwc_otg: fiq_fsm: Add non-periodic TT exclusivity constraints

Certain hub types do not discriminate between pipe direction (IN or OUT)
when considering non-periodic transfers. Therefore these hubs get confused
if multiple transfers are issued in different directions with the same
device address and endpoint number.

Constrain queuing non-periodic split transactions so they are performed
serially in such cases.

Related: https://github.com/raspberrypi/linux/issues/2024

dwc_otg: Fixup change to DRIVER_ATTR interface

dwc_otg: Fix compilation warnings

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

USB_DWCOTG: Disable building dwc_otg as a module (#2265)

When dwc_otg is built as a module, build will fail with the following
error:

ERROR: "DWC_TASK_HI_SCHEDULE" [drivers/usb/host/dwc_otg/dwc_otg.ko] undefined!
scripts/Makefile.modpost:91: recipe for target '__modpost' failed
make[1]: *** [__modpost] Error 1
Makefile:1199: recipe for target 'modules' failed
make: *** [modules] Error 2

Even if the error is solved by including the missing
DWC_TASK_HI_SCHEDULE function, the kernel will panic when loading
dwc_otg.

As a workaround, simply prevent user from building dwc_otg as a module
as the current kernel does not support it.

See: https://github.com/raspberrypi/linux/issues/2258

Signed-off-by: Malik Olivier Boussejra <malik@boussejra.com>

dwc_otg: New timer API

dwc_otg: Fix removed ACCESS_ONCE->READ_ONCE

dwc_otg: don't unconditionally force host mode in dwc_otg_cil_init()

Add the ability to disable force_host_mode for those that want to use
dwc_otg in both device and host modes.

dwc_otg: Fix a regression when dequeueing isochronous transfers

In 282bed95 (dwc_otg: make nak_holdoff work as intended with empty queues)
the dequeue mechanism was changed to leave FIQ-enabled transfers to run
to completion - to avoid leaving hub TT buffers with stale packets lying
around.

This broke FIQ-accelerated isochronous transfers, as this then meant that
dozens of transfers were performed after the dequeue function returned.

Restore the state machine fence for isochronous transfers.

fiq_fsm: rewind DMA pointer for OUT transactions that fail (#2288)

See: https://github.com/raspberrypi/linux/issues/2140

dwc_otg: add smp_mb() to prevent driver state corruption on boot

Occasional crashes have been seen where the FIQ code dereferences
invalid/random pointers immediately after being set up, leading to
panic on boot.

The crash occurs as the FIQ code races against hcd_init_fiq() and
the hcd_init_fiq() code races against the outstanding memory stores
from dwc_otg_hcd_init(). Use explicit barriers after touching
driver state.

usb: dwc_otg: fix memory corruption in dwc_otg driver

[Upstream commit 51b1b64917]

The move from the staging tree to the main tree exposed a
longstanding memory corruption bug in the dwc2 driver. The
reordering of the driver initialization caused the dwc2 driver
to corrupt the initialization data of the sdhci driver on the
Raspberry Pi platform, which made the bug show up.

The error is in calling to_usb_device(hsotg->dev), since ->dev
is not a member of struct usb_device. The easiest fix is to
just remove the offending code, since it is not really needed.

Thanks to Stephen Warren for tracking down the cause of this.

Reported-by: Andre Heider <a.heider@gmail.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[lukas: port from upstream dwc2 to out-of-tree dwc_otg driver]
Signed-off-by: Lukas Wunner <lukas@wunner.de>

usb: dwb_otg: Fix unreachable switch statement warning

This warning appears with GCC 7.3.0 from toolchains.bootlin.com:

../drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c: In function ‘fiq_fsm_update_hs_isoc’:
../drivers/usb/host/dwc_otg/dwc_otg_fiq_fsm.c:595:61: warning: statement will never be executed [-Wswitch-unreachable]
   st->hctsiz_copy.b.xfersize = nrpackets * st->hcchar_copy.b.mps;
                                            ~~~~~~~~~~~~~~~~~^~~~

Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>

dwc_otg: fiq_fsm: fix incorrect DMA register offset calculation

Rationalise the offset and update all call sites.

Fixes https://github.com/raspberrypi/linux/issues/2408

dwc_otg: fix bug with port_addr assignment for single-TT hubs

See https://github.com/raspberrypi/linux/issues/2734

The "Hub Port" field in the split transaction packet was always set
to 1 for single-TT hubs. The majority of single-TT hub products
apparently ignore this field and broadcast to all downstream enabled
ports, which masked the issue. A subset of hub devices apparently
need the port number to be exact or split transactions will fail.

usb: dwc_otg: Clean up build warnings on 64bit kernels

No functional changes. Almost all are changes to logging lines.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

usb: dwc_otg: Use dma allocation for mphi dummy_send buffer

The FIQ driver used a kzalloc'ed buffer for dummy_send,
passing a kernel virtual address to the hardware block.
The buffer is only ever used for a dummy read, so it
should be harmless, but there is the chance that it will
cause exceptions.

Use a dma allocation so that we have a genuine bus address,
and read from that.
Free the allocation when done for good measure.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>

dwc_otg: only do_split when we actually need to do a split

The previous test would fail if the root port was in fullspeed mode
and there was a hub between the FS device and the root port. While
the transfer worked, the schedule mangling performed for high-speed
split transfers would break leading to an 8ms polling interval.

dwc_otg: fix locking around dequeueing and killing URBs

kill_urbs_in_qh_list() is practically only ever called with the fiq lock
already held, so don't spinlock twice in the case where we need to cancel
an isochronous transfer.

Also fix up a case where the global interrupt register could be read with
the fiq lock not held.

Fixes the deadlock seen in https://github.com/raspberrypi/linux/issues/2907

ARM64/DWC_OTG: Port dwc_otg driver to ARM64

In ARM64, the FIQ mechanism used by this driver is not current
implemented.   As a workaround, reqular IRQ is used instead
of FIQ.

In a separate change, the IRQ-CPU mapping is round robined
on ARM64 to increase concurrency and allow multiple interrupts
to be serviced at a time.  This reduces the need for FIQ.

Tests Run:

This mechanism is most likely to break when multiple USB devices
are attached at the same time.  So the system was tested under
stress.

Devices:

1. USB Speakers playing back a FLAC audio through VLC
   at 96KHz.(Higher then typically, but supported on my speakers).

2. sftp transferring large files through the buildin ethernet
   connection which is connected through USB.

3. Keyboard and mouse attached and being used.

Although I do occasionally hear some glitches, the music seems to
play quite well.

Signed-off-by: Michael Zoran <mzoran@crowfest.net>

usb: dwc_otg: Clean up interrupt claiming code

The FIQ/IRQ interrupt number identification code is scattered through
the dwc_otg driver. Rationalise it, simplifying the code and solving
an existing issue.

See: https://github.com/raspberrypi/linux/issues/2612

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

dwc_otg: Choose appropriate IRQ handover strategy

2711 has no MPHI peripheral, but the ARM Control block can fake
interrupts. Use the size of the DTB "mphi" reg block to determine
which is required.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>

usb: host: dwc_otg: fix compiling in separate directory

The dwc_otg Makefile does not respect the O=path argument correctly:
include paths in CFLAGS are given relatively to object path, not source
path. Compiling in a separate directory yields #include errors.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
2019-09-17 11:19:47 +01:00
popcornmix
24e2599fec Main bcm2708/bcm2709 linux port
Signed-off-by: popcornmix <popcornmix@gmail.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm2709: Drop platform smp and timer init code

irq-bcm2836 handles this through these functions:
bcm2835_init_local_timer_frequency()
bcm2836_arm_irqchip_smp_init()

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

bcm270x: Use watchdog for reboot/poweroff

The watchdog driver already has support for reboot/poweroff.
Make use of this and remove the code from the platform files.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>

board_bcm2835: Remove coherent dma pool increase - API has gone
2019-09-17 11:19:47 +01:00
notro
957893fb56 pinctrl-bcm2835: Set base to 0 give expected gpio numbering
Signed-off-by: Noralf Tronnes <notro@tronnes.org>
2019-09-17 11:19:47 +01:00
Phil Elwell
698284259b amba_pl011: Add cts-event-workaround DT property
The BCM2835 PL011 implementation seems to have a bug that can lead to a
transmission lockup if CTS changes frequently. A workaround was added to
the driver with a vendor-specific flag to enable it, but this flag is
currently not set for ARM implementations.

Add a "cts-event-workaround" property to Pi DTBs and use the presence
of that property to force the flag to be enabled in the driver.

See: https://github.com/raspberrypi/linux/issues/1280

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:47 +01:00
Phil Elwell
ea7648cf35 amba_pl011: Insert mb() for correct FIFO handling
The pl011 register accessor functions use the _relaxed versions of the
standard readl() and writel() functions, meaning that there are no
automatic memory barriers. When polling a FIFO status register to check
for fullness, it is necessary to ensure that any outstanding writes have
completed; otherwise the flags are effectively stale, making it possible
that the next write is to a full FIFO.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:47 +01:00
Phil Elwell
992d0334c2 amba_pl011: Round input clock up
The UART clock is initialised to be as close to the requested
frequency as possible without exceeding it. Now that there is a
clock manager that returns the actual frequencies, an expected
48MHz clock is reported as 47999625. If the requested baudrate
== requested clock/16, there is no headroom and the slight
reduction in actual clock rate results in failure.

Detect cases where it looks like a "round" clock was chosen and
adjust the reported clock to match that "round" value. As the
code comment says:

/*
 * If increasing a clock by less than 0.1% changes it
 * from ..999.. to ..000.., round up.
 */

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:47 +01:00
Phil Elwell
554aeabdfe amba_pl011: Don't use DT aliases for numbering
The pl011 driver looks for DT aliases of the form "serial<n>",
and if found uses <n> as the device ID. This can cause
/dev/ttyAMA0 to become /dev/ttyAMA1, which is confusing if the
other serial port is provided by the 8250 driver which doesn't
use the same logic.
2019-09-17 11:19:47 +01:00
Phil Elwell
06b3d2fa12 lan78xx: Enable LEDs and auto-negotiation
For applications of the LAN78xx that don't have valid programmed
EEPROMs or OTPs, enabling both LEDs and auto-negotiation by default
seems reasonable.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:47 +01:00
Phil Elwell
b3f65dff69 irqchip: irq-bcm2836: Remove regmap and syscon use
The syscon node defines a register range that duplicates that used by
the local_intc node on bcm2836/7. Since irq-bcm2835 and irq-bcm2836 are
built in and always present together (both drivers are enabled by
CONFIG_ARCH_BCM2835), it is possible to replace the syscon usage with a
global variable that simplifies the code. Doing so does lose the
locking provided by regmap, but as only one side is using the regmap
interface (irq-bcm2835 uses readl and write) there is no loss of
atomicity.

See: https://github.com/raspberrypi/firmware/issues/926

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
Phil Elwell
385f85e36d ASoC: Add prompt for ICS43432 codec
Without a prompt string, a config setting can't be included in a
defconfig. Give CONFIG_SND_SOC_ICS43432 a prompt so that Pi soundcards
can use the driver.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
Eric Anholt
0942e223e8 mm: Remove the PFN busy warning
See commit dae803e165 -- the warning is
expected sometimes when using CMA.  However, that commit still spams
my kernel log with these warnings.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:46 +01:00
Noralf Trønnes
afa6ed3239 i2c: bcm2835: Add debug support
This adds a debug module parameter to aid in debugging transfer issues
by printing info to the kernel log. When enabled, status values are
collected in the interrupt routine and msg info in
bcm2835_i2c_start_transfer(). This is done in a way that tries to avoid
affecting timing. Having printk in the isr can mask issues.

debug values (additive):
1: Print info on error
2: Print info on all transfers
3: Print messages before transfer is started

The value can be changed at runtime:
/sys/module/i2c_bcm2835/parameters/debug

Example output, debug=3:
[  747.114448] bcm2835_i2c_xfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
[  747.114463] bcm2835_i2c_xfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
[  747.117809] start_transfer: msg(1/2) write addr=0x54, len=2 flags= [i2c1]
[  747.117825] isr: remain=2, status=0x30000055 : TA TXW TXD TXE  [i2c1]
[  747.117839] start_transfer: msg(2/2) read addr=0x54, len=32 flags= [i2c1]
[  747.117849] isr: remain=32, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
[  747.117861] isr: remain=20, status=0xd0000039 : TA RXR TXD RXD  [i2c1]
[  747.117870] isr: remain=8, status=0x32 : DONE TXD RXD  [i2c1]

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:46 +01:00
Claggy3
c51d3c77e8 Update vfpmodule.c
Christopher Alexander Tobias Schulze - May 2, 2015, 11:57 a.m.
This patch fixes a problem with VFP state save and restore related
to exception handling (panic with message "BUG: unsupported FP
instruction in kernel mode") present on VFP11 floating point units
(as used with ARM1176JZF-S CPUs, e.g. on first generation Raspberry
Pi boards). This patch was developed and discussed on

   https://github.com/raspberrypi/linux/issues/859

A precondition to see the crashes is that floating point exception
traps are enabled. In this case, the VFP11 might determine that a FPU
operation needs to trap at a point in time when it is not possible to
signal this to the ARM11 core any more. The VFP11 will then set the
FPEXC.EX bit and store the trapped opcode in FPINST. (In some cases,
a second opcode might have been accepted by the VFP11 before the
exception was detected and could be reported to the ARM11 - in this
case, the VFP11 also sets FPEXC.FP2V and stores the second opcode in
FPINST2.)

If FPEXC.EX is set, the VFP11 will "bounce" the next FPU opcode issued
by the ARM11 CPU, which will be seen by the ARM11 as an undefined opcode
trap. The VFP support code examines the FPEXC.EX and FPEXC.FP2V bits
to decide what actions to take, i.e., whether to emulate the opcodes
found in FPINST and FPINST2, and whether to retry the bounced instruction.

If a user space application has left the VFP11 in this "pending trap"
state, the next FPU opcode issued to the VFP11 might actually be the
VSTMIA operation vfp_save_state() uses to store the FPU registers
to memory (in our test cases, when building the signal stack frame).
In this case, the kernel crashes as described above.

This patch fixes the problem by making sure that vfp_save_state() is
always entered with FPEXC.EX cleared. (The current value of FPEXC has
already been saved, so this does not corrupt the context. Clearing
FPEXC.EX has no effects on FPINST or FPINST2. Also note that many
callers already modify FPEXC by setting FPEXC.EN before invoking
vfp_save_state().)

This patch also addresses a second problem related to FPEXC.EX: After
returning from signal handling, the kernel reloads the VFP context
from the user mode stack. However, the current code explicitly clears
both FPEXC.EX and FPEXC.FP2V during reload. As VFP11 requires these
bits to be preserved, this patch disables clearing them for VFP
implementations belonging to architecture 1. There should be no
negative side effects: the user can set both bits by executing FPU
opcodes anyway, and while user code may now place arbitrary values
into FPINST and FPINST2 (e.g., non-VFP ARM opcodes) the VFP support
code knows which instructions can be emulated, and rejects other
opcodes with "unhandled bounce" messages, so there should be no
security impact from allowing reloading FPEXC.EX and FPEXC.FP2V.

Signed-off-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
2019-09-17 11:19:46 +01:00
Phil Elwell
2135d0aefb sound: Demote deferral errors to INFO level
At present there is no mechanism to specify driver load order,
which can lead to deferrals and repeated retries until successful.
Since this situation is expected, reduce the dmesg level to
INFO and mention that the operation will be retried.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
Eric Anholt
005d1d0984 clk: bcm2835: Mark GPIO clocks enabled at boot as critical.
These divide off of PLLD_PER and are used for the ethernet and wifi
PHYs source PLLs.  Neither of them is currently represented by a phy
device that would grab the clock for us.

This keeps other drivers from killing the networking PHYs when they
disable their own clocks and trigger PLLD_PER's refcount going to 0.

v2: Skip marking as critical if they aren't on at boot.

Signed-off-by: Eric Anholt <eric@anholt.net>
2019-09-17 11:19:46 +01:00
Phil Elwell
e0c321afbb clk-bcm2835: Read max core clock from firmware
The VPU is responsible for managing the core clock, usually under
direction from the bcm2835-cpufreq driver but not via the clk-bcm2835
driver. Since the core frequency can change without warning, it is
safer to report the maximum clock rate to users of the core clock -
I2C, SPI and the mini UART - to err on the safe side when calculating
clock divisors.

If the DT node for the clock driver includes a reference to the
firmware node, use the firmware API to query the maximum core clock
instead of reading the divider registers.

Prior to this patch, a "100KHz" I2C bus was sometimes clocked at about
160KHz. In particular, switching to the 4.9 kernel was likely to break
SenseHAT usage on a Pi3.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
Phil Elwell
15cddad023 clk-bcm2835: Add claim-clocks property
The claim-clocks property can be used to prevent PLLs and dividers
from being marked as critical. It contains a vector of clock IDs,
as defined by dt-bindings/clock/bcm2835.h.

Use this mechanism to claim PLLD_DSI0, PLLD_DSI1, PLLH_AUX and
PLLH_PIX for the vc4_kms_v3d driver.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
Phil Elwell
d68b20efda clk-bcm2835: Mark used PLLs and dividers CRITICAL
The VPU configures and relies on several PLLs and dividers. Mark all
enabled dividers and their PLLs as CRITICAL to prevent the kernel from
switching them off.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:46 +01:00
popcornmix
8c489dd6e4 bcm2835-rng: Avoid initialising if already enabled
Avoids the 0x40000 cycles of warmup again if firmware has already used it
2019-09-17 11:19:46 +01:00
Martin Sperl
671165b951 Register the clocks early during the boot process, so that special/critical clocks can get enabled early on in the boot process avoiding the risk of disabling a clock, pll_divider or pll when a claiming driver fails to install propperly - maybe it needs to defer.
Signed-off-by: Martin Sperl <kernel@martin.sperl.org>
2019-09-17 11:19:46 +01:00
popcornmix
7cea52c36f bcm: Make RASPBERRYPI_POWER depend on PM 2019-09-17 11:19:45 +01:00
popcornmix
2aa3a6ca53 reboot: Use power off rather than busy spinning when halt is requested 2019-09-17 11:19:45 +01:00
Noralf Trønnes
14ee958a6f watchdog: bcm2835: Support setting reboot partition
The Raspberry Pi firmware looks at the RSTS register to know which
partition to boot from. The reboot syscall command
LINUX_REBOOT_CMD_RESTART2 supports passing in a string argument.

Add support for passing in a partition number 0..63 to boot from.
Partition 63 is a special partiton indicating halt.
If the partition doesn't exist, the firmware falls back to partition 0.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:45 +01:00
Phil Elwell
e7562e99bb rtc: Add SPI alias for pcf2123 driver
Without this alias, Device Tree won't cause the driver
to be loaded.

See: https://github.com/raspberrypi/linux/pull/1510
2019-09-17 11:19:45 +01:00
popcornmix
81bbae5ce6 firmware: Updated mailbox header 2019-09-17 11:19:45 +01:00
Noralf Trønnes
3aaac6af94 dmaengine: bcm2835: Load driver early and support legacy API
Load driver early since at least bcm2708_fb doesn't support deferred
probing and even if it did, we don't want the video driver deferred.
Support the legacy DMA API which is needed by bcm2708_fb.
Don't mask out channel 2.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:45 +01:00
Phil Elwell
3011ad696f spi: spidev: Completely disable the spidev warning
An alternative strategy would be to use "rpi,spidev" instead, but that
would require many Raspberry Pi Device Tree changes.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:45 +01:00
Noralf Trønnes
add79076e6 irqchip: irq-bcm2835: Add 2836 FIQ support
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
2019-09-17 11:19:45 +01:00
Noralf Trønnes
e4b3284ac2 irqchip: bcm2835: Add FIQ support
Add a duplicate irq range with an offset on the hwirq's so the
driver can detect that enable_fiq() is used.
Tested with downstream dwc_otg USB controller driver.

Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
2019-09-17 11:19:45 +01:00
Phil Elwell
daa832a4ec irq-bcm2836: Avoid "Invalid trigger warning"
Initialise the level for each IRQ to avoid a warning from the
arm arch timer code.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:45 +01:00
Phil Elwell
0038c29f43 irq-bcm2836: Prevent spurious interrupts, and trap them early
The old arch-specific IRQ macros included a dsb to ensure the
write to clear the mailbox interrupt completed before returning
from the interrupt. The BCM2836 irqchip driver needs the same
precaution to avoid spurious interrupts.

Spurious interrupts are still possible for other reasons,
though, so trap them early.
2019-09-17 11:19:45 +01:00
Phil Elwell
1dcccaa7ae Protect __release_resource against resources without parents
Without this patch, removing a device tree overlay can crash here.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:45 +01:00
popcornmix
6faff3ee51 Allow mac address to be set in smsc95xx
Signed-off-by: popcornmix <popcornmix@gmail.com>
2019-09-17 11:19:44 +01:00
Sam Nazarko
a95b6ee1de smsc95xx: Experimental: Enable turbo_mode and packetsize=2560 by default
See: http://forum.kodi.tv/showthread.php?tid=285288
2019-09-17 11:19:44 +01:00
Steve Glendinning
81682c23ea smsx95xx: fix crimes against truesize
smsc95xx is adjusting truesize when it shouldn't, and following a recent patch from Eric this is now triggering warnings.

This patch stops smsc95xx from changing truesize.

Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
2019-09-17 11:19:44 +01:00
Phil Elwell
101e05de92 Revert "rtc: pcf8523: properly handle oscillator stop bit"
This reverts commit ede44c908d.

See: https://github.com/raspberrypi/firmware/issues/1065

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
2019-09-17 11:19:44 +01:00
Dan Pasanen
f090e330b1 arm: partially revert 702b94bff3
* Re-expose some dmi APIs for use in VCSM
2019-09-17 11:19:44 +01:00
44434 changed files with 2070093 additions and 4516999 deletions

View File

@@ -80,15 +80,12 @@ ForEachMacros:
- 'ax25_uid_for_each'
- '__bio_for_each_bvec'
- 'bio_for_each_bvec'
- 'bio_for_each_bvec_all'
- 'bio_for_each_integrity_vec'
- '__bio_for_each_segment'
- 'bio_for_each_segment'
- 'bio_for_each_segment_all'
- 'bio_list_for_each'
- 'bip_for_each_vec'
- 'bitmap_for_each_clear_region'
- 'bitmap_for_each_set_region'
- 'blkg_for_each_descendant_post'
- 'blkg_for_each_descendant_pre'
- 'blk_queue_for_each_rl'
@@ -111,7 +108,6 @@ ForEachMacros:
- 'css_for_each_descendant_pre'
- 'device_for_each_child_node'
- 'dma_fence_chain_for_each'
- 'do_for_each_ftrace_op'
- 'drm_atomic_crtc_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane'
- 'drm_atomic_crtc_state_for_each_plane_state'
@@ -119,7 +115,6 @@ ForEachMacros:
- 'drm_client_for_each_connector_iter'
- 'drm_client_for_each_modeset'
- 'drm_connector_for_each_possible_encoder'
- 'drm_for_each_bridge_in_chain'
- 'drm_for_each_connector_iter'
- 'drm_for_each_crtc'
- 'drm_for_each_encoder'
@@ -137,21 +132,16 @@ ForEachMacros:
- 'for_each_active_dev_scope'
- 'for_each_active_drhd_unit'
- 'for_each_active_iommu'
- 'for_each_aggr_pgid'
- 'for_each_available_child_of_node'
- 'for_each_bio'
- 'for_each_board_func_rsrc'
- 'for_each_bvec'
- 'for_each_card_auxs'
- 'for_each_card_auxs_safe'
- 'for_each_card_components'
- 'for_each_card_dapms'
- 'for_each_card_pre_auxs'
- 'for_each_card_links'
- 'for_each_card_links_safe'
- 'for_each_card_prelinks'
- 'for_each_card_rtds'
- 'for_each_card_rtds_safe'
- 'for_each_card_widgets'
- 'for_each_card_widgets_safe'
- 'for_each_cgroup_storage_type'
- 'for_each_child_of_node'
- 'for_each_clear_bit'
@@ -166,7 +156,6 @@ ForEachMacros:
- 'for_each_cpu_and'
- 'for_each_cpu_not'
- 'for_each_cpu_wrap'
- 'for_each_dapm_widgets'
- 'for_each_dev_addr'
- 'for_each_dev_scope'
- 'for_each_displayid_db'
@@ -197,29 +186,23 @@ ForEachMacros:
- 'for_each_ip_tunnel_rcu'
- 'for_each_irq_nr'
- 'for_each_link_codecs'
- 'for_each_link_cpus'
- 'for_each_link_platforms'
- 'for_each_lru'
- 'for_each_matching_node'
- 'for_each_matching_node_and_match'
- 'for_each_member'
- 'for_each_mem_region'
- 'for_each_memblock'
- 'for_each_memblock_type'
- 'for_each_memcg_cache_index'
- 'for_each_mem_pfn_range'
- '__for_each_mem_range'
- 'for_each_mem_range'
- '__for_each_mem_range_rev'
- 'for_each_mem_range_rev'
- 'for_each_migratetype_order'
- 'for_each_msi_entry'
- 'for_each_msi_entry_safe'
- 'for_each_net'
- 'for_each_net_continue_reverse'
- 'for_each_netdev'
- 'for_each_netdev_continue'
- 'for_each_netdev_continue_rcu'
- 'for_each_netdev_continue_reverse'
- 'for_each_netdev_feature'
- 'for_each_netdev_in_bond_rcu'
- 'for_each_netdev_rcu'
@@ -238,7 +221,6 @@ ForEachMacros:
- 'for_each_node_state'
- 'for_each_node_with_cpus'
- 'for_each_node_with_property'
- 'for_each_nonreserved_multicast_dest_pgid'
- 'for_each_of_allnodes'
- 'for_each_of_allnodes_from'
- 'for_each_of_cpu_node'
@@ -260,8 +242,6 @@ ForEachMacros:
- 'for_each_pci_bridge'
- 'for_each_pci_dev'
- 'for_each_pci_msi_entry'
- 'for_each_pcm_streams'
- 'for_each_physmem_range'
- 'for_each_populated_zone'
- 'for_each_possible_cpu'
- 'for_each_present_cpu'
@@ -271,34 +251,22 @@ ForEachMacros:
- 'for_each_process_thread'
- 'for_each_property_of_node'
- 'for_each_registered_fb'
- 'for_each_requested_gpio'
- 'for_each_requested_gpio_in_range'
- 'for_each_reserved_mem_range'
- 'for_each_reserved_mem_region'
- 'for_each_rtd_codec_dais'
- 'for_each_rtd_codec_dais_rollback'
- 'for_each_rtd_components'
- 'for_each_rtd_cpu_dais'
- 'for_each_rtd_cpu_dais_rollback'
- 'for_each_rtd_dais'
- 'for_each_rtd_codec_dai'
- 'for_each_rtd_codec_dai_rollback'
- 'for_each_rtdcom'
- 'for_each_rtdcom_safe'
- 'for_each_set_bit'
- 'for_each_set_bit_from'
- 'for_each_set_clump8'
- 'for_each_sg'
- 'for_each_sg_dma_page'
- 'for_each_sg_page'
- 'for_each_sgtable_dma_page'
- 'for_each_sgtable_dma_sg'
- 'for_each_sgtable_page'
- 'for_each_sgtable_sg'
- 'for_each_sibling_event'
- 'for_each_subelement'
- 'for_each_subelement_extid'
- 'for_each_subelement_id'
- '__for_each_thread'
- 'for_each_thread'
- 'for_each_unicast_dest_pgid'
- 'for_each_wakeup_source'
- 'for_each_zone'
- 'for_each_zone_zonelist'
- 'for_each_zone_zonelist_nodemask'
@@ -357,13 +325,11 @@ ForEachMacros:
- 'klp_for_each_object'
- 'klp_for_each_object_safe'
- 'klp_for_each_object_static'
- 'kunit_suite_for_each_test_case'
- 'kvm_for_each_memslot'
- 'kvm_for_each_vcpu'
- 'list_for_each'
- 'list_for_each_codec'
- 'list_for_each_codec_safe'
- 'list_for_each_continue'
- 'list_for_each_entry'
- 'list_for_each_entry_continue'
- 'list_for_each_entry_continue_rcu'
@@ -385,7 +351,6 @@ ForEachMacros:
- 'llist_for_each_entry'
- 'llist_for_each_entry_safe'
- 'llist_for_each_safe'
- 'mci_for_each_dimm'
- 'media_device_for_each_entity'
- 'media_device_for_each_intf'
- 'media_device_for_each_link'
@@ -411,7 +376,6 @@ ForEachMacros:
- 'of_property_for_each_string'
- 'of_property_for_each_u32'
- 'pci_bus_for_each_resource'
- 'pcm_for_each_format'
- 'ping_portaddr_for_each_entry'
- 'plist_for_each'
- 'plist_for_each_continue'
@@ -429,7 +393,6 @@ ForEachMacros:
- 'rbtree_postorder_for_each_entry_safe'
- 'rdma_for_each_block'
- 'rdma_for_each_port'
- 'rdma_umem_for_each_dma_block'
- 'resource_list_for_each_entry'
- 'resource_list_for_each_entry_safe'
- 'rhl_for_each_entry_rcu'
@@ -479,19 +442,12 @@ ForEachMacros:
- 'v4l2_m2m_for_each_src_buf'
- 'v4l2_m2m_for_each_src_buf_safe'
- 'virtio_device_for_each_vq'
- 'while_for_each_ftrace_op'
- 'xa_for_each'
- 'xa_for_each_marked'
- 'xa_for_each_range'
- 'xa_for_each_start'
- 'xas_for_each'
- 'xas_for_each_conflict'
- 'xas_for_each_marked'
- 'xbc_array_for_each_value'
- 'xbc_for_each_key_value'
- 'xbc_node_for_each_array_value'
- 'xbc_node_for_each_child'
- 'xbc_node_for_each_key_value'
- 'zorro_for_each_dev'
#IncludeBlocks: Preserve # Unknown to clang-format-5.0
@@ -509,7 +465,7 @@ KeepEmptyLinesAtTheStartOfBlocks: false
MacroBlockBegin: ''
MacroBlockEnd: ''
MaxEmptyLinesToKeep: 1
NamespaceIndentation: None
NamespaceIndentation: Inner
#ObjCBinPackProtocolList: Auto # Unknown to clang-format-5.0
ObjCBlockIndentWidth: 8
ObjCSpaceAfterProperty: true

2
.gitattributes vendored
View File

@@ -1,4 +1,2 @@
*.c diff=cpp
*.h diff=cpp
*.dtsi diff=dts
*.dts diff=dts

12
.gitignore vendored
View File

@@ -1,4 +1,3 @@
# SPDX-License-Identifier: GPL-2.0-only
#
# NOTE! Don't add files that are generated in specific
# subdirectories here. Add them in the ".gitignore" file
@@ -36,6 +35,7 @@
*.mod.c
*.o
*.o.*
*.order
*.patch
*.s
*.so
@@ -45,10 +45,8 @@
*.tab.[ch]
*.tar
*.xz
*.zst
Module.symvers
modules.builtin
modules.order
#
# Top-level generic files
@@ -58,13 +56,11 @@ modules.order
/linux
/vmlinux
/vmlinux.32
/vmlinux.symvers
/vmlinux-gdb.py
/vmlinuz
/System.map
/Module.markers
/modules.builtin.modinfo
/modules.nsdeps
#
# RPM spec file (make rpm-pkg)
@@ -145,14 +141,8 @@ x509.genkey
/allrandom.config
/allyes.config
# Kconfig savedefconfig output
/defconfig
# Kdevelop4
*.kdev4
# Clang's compilation database file
/compile_commands.json
# Documentation toolchain
sphinx_*/

213
.mailmap
View File

@@ -2,163 +2,112 @@
# This list is used by git-shortlog to fix a few botched name translations
# in the git archive, either because the author's full name was messed up
# and/or not always written the same way, making contributions from the
# same person appearing not to be so or badly displayed. Also allows for
# old email addresses to map to new email addresses.
# same person appearing not to be so or badly displayed.
#
# For format details, see "MAPPING AUTHORS" in "man git-shortlog".
#
# Please keep this list dictionary sorted.
#
# This comment is parsed by git-shortlog:
# repo-abbrev: /pub/scm/linux/kernel/git/
#
Aaron Durbin <adurbin@google.com>
Adam Oldham <oldhamca@gmail.com>
Adam Radford <aradford@gmail.com>
Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>
Adrian Bunk <bunk@stusta.de>
Adriana Reus <adi.reus@gmail.com> <adriana.reus@intel.com>
Alan Cox <alan@lxorguk.ukuu.org.uk>
Alan Cox <root@hraefn.swansea.linux.org.uk>
Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
Aleksey Gorelov <aleksey_gorelov@phoenix.com>
Alexander Lobakin <alobakin@pm.me> <alobakin@dlink.ru>
Alexander Lobakin <alobakin@pm.me> <alobakin@marvell.com>
Alexander Lobakin <alobakin@pm.me> <bloodyreaper@yandex.ru>
Alexandre Belloni <alexandre.belloni@bootlin.com> <alexandre.belloni@free-electrons.com>
Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
Alexei Starovoitov <ast@kernel.org> <ast@fb.com>
Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>
Aleksandar Markovic <aleksandar.markovic@mips.com> <aleksandar.markovic@imgtec.com>
Alex Shi <alex.shi@linux.alibaba.com> <alex.shi@intel.com>
Alex Shi <alex.shi@linux.alibaba.com> <alex.shi@linaro.org>
Alexei Starovoitov <ast@kernel.org> <ast@plumgrid.com>
Alexei Starovoitov <ast@kernel.org> <alexei.starovoitov@gmail.com>
Alexei Starovoitov <ast@kernel.org> <ast@fb.com>
Al Viro <viro@ftp.linux.org.uk>
Al Viro <viro@zenIV.linux.org.uk>
Andi Kleen <ak@linux.intel.com> <ak@suse.de>
Andi Shyti <andi@etezian.org> <andi.shyti@samsung.com>
Andreas Herrmann <aherrman@de.ibm.com>
Andrew Morton <akpm@linux-foundation.org>
Andrew Murray <amurray@thegoodpenguin.co.uk> <amurray@embedded-bits.co.uk>
Andrew Murray <amurray@thegoodpenguin.co.uk> <andrew.murray@arm.com>
Andrew Vasquez <andrew.vasquez@qlogic.com>
Andrey Ryabinin <ryabinin.a.a@gmail.com> <a.ryabinin@samsung.com>
Andrew Morton <akpm@linux-foundation.org>
Andrew Vasquez <andrew.vasquez@qlogic.com>
Andy Adamson <andros@citi.umich.edu>
Antoine Tenart <atenart@kernel.org> <antoine.tenart@bootlin.com>
Antoine Tenart <atenart@kernel.org> <antoine.tenart@free-electrons.com>
Antoine Tenart <antoine.tenart@free-electrons.com>
Antonio Ospite <ao2@ao2.it> <ao2@amarulasolutions.com>
Archit Taneja <archit@ti.com>
Ard Biesheuvel <ardb@kernel.org> <ard.biesheuvel@linaro.org>
Arnaud Patard <arnaud.patard@rtp-net.org>
Arnd Bergmann <arnd@arndb.de>
Axel Dyks <xl@xlsigned.net>
Axel Lin <axel.lin@gmail.com>
Bart Van Assche <bvanassche@acm.org> <bart.vanassche@sandisk.com>
Bart Van Assche <bvanassche@acm.org> <bart.vanassche@wdc.com>
Bart Van Assche <bvanassche@acm.org> <bart.vanassche@sandisk.com>
Ben Gardner <bgardner@wabtec.com>
Ben M Cahill <ben.m.cahill@intel.com>
Björn Steinbrink <B.Steinbrink@gmx.de>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon.dev@gmail.com>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon@overkiz.com>
Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@bootlin.com>
Boris Brezillon <bbrezillon@kernel.org> <boris.brezillon@free-electrons.com>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon.dev@gmail.com>
Boris Brezillon <bbrezillon@kernel.org> <b.brezillon@overkiz.com>
Brian Avery <b.avery@hp.com>
Brian King <brking@us.ibm.com>
Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>
Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>
Chao Yu <chao@kernel.org> <chao2.yu@samsung.com>
Chao Yu <chao@kernel.org> <yuchao0@huawei.com>
Christophe Ricard <christophe.ricard@gmail.com>
Christoph Hellwig <hch@lst.de>
Christophe Ricard <christophe.ricard@gmail.com>
Corey Minyard <minyard@acm.org>
Damian Hobson-Garcia <dhobsong@igel.co.jp>
Daniel Borkmann <daniel@iogearbox.net> <danborkmann@googlemail.com>
Daniel Borkmann <daniel@iogearbox.net> <dborkman@redhat.com>
Daniel Borkmann <daniel@iogearbox.net> <dborkmann@redhat.com>
Daniel Borkmann <daniel@iogearbox.net> <danborkmann@iogearbox.net>
Daniel Borkmann <daniel@iogearbox.net> <daniel.borkmann@tik.ee.ethz.ch>
Daniel Borkmann <daniel@iogearbox.net> <dborkmann@redhat.com>
Daniel Borkmann <daniel@iogearbox.net> <dborkman@redhat.com>
Daniel Borkmann <daniel@iogearbox.net> <danborkmann@googlemail.com>
Daniel Borkmann <daniel@iogearbox.net> <dxchgb@gmail.com>
David Brownell <david-b@pacbell.net>
David Woodhouse <dwmw2@shinybook.infradead.org>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@mips.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@imgtec.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dczhu@mips.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@gmail.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@imgtec.com>
Dengcheng Zhu <dzhu@wavecomp.com> <dengcheng.zhu@mips.com>
<dev.kurt@vandijck-laurijssen.be> <kurt.van.dijck@eia.be>
Dmitry Baryshkov <dbaryshkov@gmail.com>
Dmitry Baryshkov <dbaryshkov@gmail.com> <[dbaryshkov@gmail.com]>
Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_baryshkov@mentor.com>
Dmitry Baryshkov <dbaryshkov@gmail.com> <dmitry_eremin@mentor.com>
Dmitry Safonov <0x7f454c46@gmail.com> <dima@arista.com>
Dmitry Safonov <0x7f454c46@gmail.com> <d.safonov@partner.samsung.com>
Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Dmitry Safonov <0x7f454c46@gmail.com> <dsafonov@virtuozzo.com>
Dmitry Safonov <0x7f454c46@gmail.com> <d.safonov@partner.samsung.com>
Dmitry Safonov <0x7f454c46@gmail.com> <dima@arista.com>
Domen Puncer <domen@coderock.org>
Douglas Gilbert <dougg@torque.net>
Ed L. Cashin <ecashin@coraid.com>
Erik Kaneda <erik.kaneda@intel.com> <erik.schmauss@intel.com>
Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Felipe W Damasio <felipewd@terra.com.br>
Felix Kuhling <fxkuehl@gmx.de>
Felix Moeller <felix@derklecks.de>
Filipe Lautert <filipe@icewall.org>
Franck Bui-Huu <vagabon.xyz@gmail.com>
Frank Rowand <frowand.list@gmail.com> <frowand@mvista.com>
Frank Rowand <frowand.list@gmail.com> <frank.rowand@am.sony.com>
Frank Rowand <frowand.list@gmail.com> <frank.rowand@sonymobile.com>
Frank Rowand <frowand.list@gmail.com> <frowand@mvista.com>
Frank Zago <fzago@systemfabricworks.com>
Gao Xiang <xiang@kernel.org> <gaoxiang25@huawei.com>
Gao Xiang <xiang@kernel.org> <hsiangkao@aol.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <gerald.schaefer@de.ibm.com>
Gerald Schaefer <gerald.schaefer@linux.ibm.com> <geraldsc@linux.vnet.ibm.com>
Greg Kroah-Hartman <greg@echidna.(none)>
Greg Kroah-Hartman <gregkh@suse.de>
Greg Kroah-Hartman <greg@kroah.com>
Greg Kurz <groug@kaod.org> <gkurz@linux.vnet.ibm.com>
Gregory CLEMENT <gregory.clement@bootlin.com> <gregory.clement@free-electrons.com>
Gustavo Padovan <gustavo@las.ic.unicamp.br>
Gustavo Padovan <padovan@profusion.mobi>
Hanjun Guo <guohanjun@huawei.com> <hanjun.guo@linaro.org>
Heiko Carstens <hca@linux.ibm.com> <h.carstens@de.ibm.com>
Heiko Carstens <hca@linux.ibm.com> <heiko.carstens@de.ibm.com>
Henk Vergonet <Henk.Vergonet@gmail.com>
Henrik Kretzschmar <henne@nachtwindheim.de>
Henrik Rydberg <rydberg@bitmath.org>
Herbert Xu <herbert@gondor.apana.org.au>
Jacob Shin <Jacob.Shin@amd.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@google.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk.kim@samsung.com>
Jaegeuk Kim <jaegeuk@kernel.org> <jaegeuk@motorola.com>
Jakub Kicinski <kuba@kernel.org> <jakub.kicinski@netronome.com>
James Bottomley <jejb@mulgrave.(none)>
James Bottomley <jejb@titanic.il.steeleye.com>
James E Wilson <wilson@specifix.com>
James Hogan <jhogan@kernel.org> <james@albanarts.com>
James Hogan <jhogan@kernel.org> <james.hogan@imgtec.com>
James Hogan <jhogan@kernel.org> <james@albanarts.com>
James Ketrenos <jketreno@io.(none)>
Jan Glauber <jan.glauber@gmail.com> <jang@de.ibm.com>
Jan Glauber <jan.glauber@gmail.com> <jang@linux.vnet.ibm.com>
Jan Glauber <jan.glauber@gmail.com> <jglauber@cavium.com>
Jarkko Sakkinen <jarkko@kernel.org> <jarkko.sakkinen@linux.intel.com>
Jason Gunthorpe <jgg@ziepe.ca> <jgg@mellanox.com>
Jason Gunthorpe <jgg@ziepe.ca> <jgg@nvidia.com>
Jason Gunthorpe <jgg@ziepe.ca> <jgunthorpe@obsidianresearch.com>
<javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
Javi Merino <javi.merino@kernel.org> <javi.merino@arm.com>
Jayachandran C <c.jayachandran@gmail.com> <jayachandranc@netlogicmicro.com>
Jayachandran C <c.jayachandran@gmail.com> <jchandra@broadcom.com>
Jayachandran C <c.jayachandran@gmail.com> <jchandra@digeo.com>
Jayachandran C <c.jayachandran@gmail.com> <jnair@caviumnetworks.com>
<jean-philippe@linaro.org> <jean-philippe.brucker@arm.com>
<javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
Jean Tourrilhes <jt@hpl.hp.com>
<jean-philippe@linaro.org> <jean-philippe.brucker@arm.com>
Jeff Garzik <jgarzik@pretzel.yyz.us>
Jeff Layton <jlayton@kernel.org> <jlayton@redhat.com>
Jeff Layton <jlayton@kernel.org> <jlayton@poochiereds.net>
Jeff Layton <jlayton@kernel.org> <jlayton@primarydata.com>
Jeff Layton <jlayton@kernel.org> <jlayton@redhat.com>
Jens Axboe <axboe@suse.de>
Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
Jiri Slaby <jirislaby@kernel.org> <jirislaby@gmail.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@novell.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.com>
Jiri Slaby <jirislaby@kernel.org> <jslaby@suse.cz>
Jiri Slaby <jirislaby@kernel.org> <xslaby@fi.muni.cz>
Johan Hovold <johan@kernel.org> <jhovold@gmail.com>
Johan Hovold <johan@kernel.org> <johan@hovoldconsulting.com>
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
@@ -172,40 +121,28 @@ Juha Yrjola <at solidboot.com>
Juha Yrjola <juha.yrjola@nokia.com>
Juha Yrjola <juha.yrjola@solidboot.com>
Julien Thierry <julien.thierry.kdev@gmail.com> <julien.thierry@arm.com>
Kamil Konieczny <k.konieczny@samsung.com> <k.konieczny@partner.samsung.com>
Kay Sievers <kay.sievers@vrfy.org>
Kees Cook <keescook@chromium.org> <kees.cook@canonical.com>
Kees Cook <keescook@chromium.org> <keescook@google.com>
Kees Cook <keescook@chromium.org> <kees@outflux.net>
Kees Cook <keescook@chromium.org> <kees@ubuntu.com>
Kenneth W Chen <kenneth.w.chen@intel.com>
Konstantin Khlebnikov <koct9i@gmail.com> <khlebnikov@yandex-team.ru>
Konstantin Khlebnikov <koct9i@gmail.com> <k.khlebnikov@samsung.com>
Koushik <raghavendra.koushik@neterion.com>
Krzysztof Kozlowski <krzk@kernel.org> <k.kozlowski.k@gmail.com>
Krzysztof Kozlowski <krzk@kernel.org> <k.kozlowski@samsung.com>
Krzysztof Kozlowski <krzk@kernel.org> <k.kozlowski.k@gmail.com>
Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Leonardo Bras <leobras.c@gmail.com> <leonardo@linux.ibm.com>
Leonid I Ananiev <leonid.i.ananiev@intel.com>
Leon Romanovsky <leon@kernel.org> <leon@leon.nu>
Leon Romanovsky <leon@kernel.org> <leonro@mellanox.com>
Leon Romanovsky <leon@kernel.org> <leonro@nvidia.com>
Leonid I Ananiev <leonid.i.ananiev@intel.com>
Linas Vepstas <linas@austin.ibm.com>
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@web.de>
<linux-hardening@vger.kernel.org> <kernel-hardening@lists.openwall.com>
Li Yang <leoyang.li@nxp.com> <leoli@freescale.com>
Linus Lüssing <linus.luessing@c0d3.blue> <linus.luessing@ascom.ch>
Li Yang <leoyang.li@nxp.com> <leo@zh-kernel.org>
Lukasz Luba <lukasz.luba@arm.com> <l.luba@partner.samsung.com>
Li Yang <leoyang.li@nxp.com> <leoli@freescale.com>
Maciej W. Rozycki <macro@mips.com> <macro@imgtec.com>
Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
Marc Zyngier <maz@kernel.org> <marc.zyngier@arm.com>
Marcin Nowakowski <marcin.nowakowski@mips.com> <marcin.nowakowski@imgtec.com>
Mark Brown <broonie@sirena.org.uk>
Mark Starovoytov <mstarovo@pm.me> <mstarovoitov@marvell.com>
Mark Yao <markyao0591@gmail.com> <mark.yao@rock-chips.com>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@puri.sm>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@theobroma-systems.com>
Martin Kepplinger <martink@posteo.de> <martin.kepplinger@ginzinger.com>
Mathieu Othacehe <m.othacehe@gmail.com>
Matthew Wilcox <willy@infradead.org> <matthew.r.wilcox@intel.com>
Matthew Wilcox <willy@infradead.org> <matthew@wil.cx>
@@ -215,25 +152,22 @@ Matthew Wilcox <willy@infradead.org> <willy@debian.org>
Matthew Wilcox <willy@infradead.org> <willy@linux.intel.com>
Matthew Wilcox <willy@infradead.org> <willy@parisc-linux.org>
Matthieu CASTET <castet.matthieu@free.fr>
Matt Ranostay <matt.ranostay@konsulko.com> <matt@ranostay.consulting>
Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>
Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>
Matt Redfearn <matt.redfearn@mips.com> <matt.redfearn@imgtec.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@brturbo.com.br>
Mauro Carvalho Chehab <mchehab@kernel.org> <maurochehab@gmail.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@infradead.org>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@redhat.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <m.chehab@samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@osg.samsung.com>
Mauro Carvalho Chehab <mchehab@kernel.org> <mchehab@s-opensource.com>
Matt Ranostay <mranostay@gmail.com> Matthew Ranostay <mranostay@embeddedalley.com>
Matt Ranostay <mranostay@gmail.com> <matt.ranostay@intel.com>
Matt Ranostay <matt.ranostay@konsulko.com> <matt@ranostay.consulting>
Matt Redfearn <matt.redfearn@mips.com> <matt.redfearn@imgtec.com>
Maxime Ripard <mripard@kernel.org> <maxime.ripard@bootlin.com>
Maxime Ripard <mripard@kernel.org> <maxime.ripard@free-electrons.com>
Mayuresh Janorkar <mayur@ti.com>
Michael Buesch <m@bues.ch>
Michel Dänzer <michel@tungstengraphics.com>
Mike Rapoport <rppt@kernel.org> <mike@compulab.co.il>
Mike Rapoport <rppt@kernel.org> <mike.rapoport@gmail.com>
Mike Rapoport <rppt@kernel.org> <rppt@linux.ibm.com>
Miodrag Dinic <miodrag.dinic@mips.com> <miodrag.dinic@imgtec.com>
Miquel Raynal <miquel.raynal@bootlin.com> <miquel.raynal@free-electrons.com>
Mitesh shah <mshah@teja.com>
@@ -244,102 +178,79 @@ Morten Welinder <welinder@darter.rentec.com>
Morten Welinder <welinder@troll.com>
Mythri P K <mythripk@ti.com>
Nguyen Anh Quynh <aquynh@gmail.com>
Nicolas Ferre <nicolas.ferre@microchip.com> <nicolas.ferre@atmel.com>
Nicolas Pitre <nico@fluxnic.net> <nicolas.pitre@linaro.org>
Nicolas Pitre <nico@fluxnic.net> <nico@linaro.org>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paul.burton@mips.com> <paul.burton@imgtec.com>
Peter A Jonsson <pj@ludd.ltu.se>
Peter Oruba <peter@oruba.de>
Peter Oruba <peter.oruba@amd.com>
Pratyush Anand <pratyush.anand@gmail.com> <pratyush.anand@st.com>
Praveen BP <praveenbp@ti.com>
Punit Agrawal <punitagrawal@gmail.com> <punit.agrawal@arm.com>
Qais Yousef <qsyousef@gmail.com> <qais.yousef@imgtec.com>
Oleksij Rempel <linux@rempel-privat.de> <bug-track@fisher-privat.net>
Oleksij Rempel <linux@rempel-privat.de> <external.Oleksij.Rempel@de.bosch.com>
Oleksij Rempel <linux@rempel-privat.de> <fixed-term.Oleksij.Rempel@de.bosch.com>
Oleksij Rempel <linux@rempel-privat.de> <o.rempel@pengutronix.de>
Oleksij Rempel <linux@rempel-privat.de> <ore@pengutronix.de>
Pali Rohár <pali@kernel.org> <pali.rohar@gmail.com>
Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Patrick Mochel <mochel@digitalimplant.org>
Paul Burton <paulburton@kernel.org> <paul.burton@imgtec.com>
Paul Burton <paulburton@kernel.org> <paul.burton@mips.com>
Paul E. McKenney <paulmck@kernel.org> <paul.mckenney@linaro.org>
Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.ibm.com>
Paul E. McKenney <paulmck@kernel.org> <paulmck@linux.vnet.ibm.com>
Paul E. McKenney <paulmck@kernel.org> <paulmck@us.ibm.com>
Peter A Jonsson <pj@ludd.ltu.se>
Peter Oruba <peter.oruba@amd.com>
Peter Oruba <peter@oruba.de>
Pratyush Anand <pratyush.anand@gmail.com> <pratyush.anand@st.com>
Praveen BP <praveenbp@ti.com>
Punit Agrawal <punitagrawal@gmail.com> <punit.agrawal@arm.com>
Qais Yousef <qsyousef@gmail.com> <qais.yousef@imgtec.com>
Quentin Monnet <quentin@isovalent.com> <quentin.monnet@netronome.com>
Quentin Perret <qperret@qperret.net> <quentin.perret@arm.com>
Rafael J. Wysocki <rjw@rjwysocki.net> <rjw@sisk.pl>
Rajesh Shah <rajesh.shah@intel.com>
Ralf Baechle <ralf@linux-mips.org>
Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Randy Dunlap <rdunlap@infradead.org> <rdunlap@xenotime.net>
Rémi Denis-Courmont <rdenis@simphalempin.com>
Ricardo Ribalda <ribalda@kernel.org> <ricardo@ribalda.com>
Ricardo Ribalda <ribalda@kernel.org> Ricardo Ribalda Delgado <ribalda@kernel.org>
Ricardo Ribalda <ribalda@kernel.org> <ricardo.ribalda@gmail.com>
Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Ross Zwisler <zwisler@kernel.org> <ross.zwisler@linux.intel.com>
Rudolf Marek <R.Marek@sh.cvut.cz>
Rui Saraiva <rmps@joel.ist.utl.pt>
Sachin P Sant <ssant@in.ibm.com>
Sakari Ailus <sakari.ailus@linux.intel.com> <sakari.ailus@iki.fi>
Sam Ravnborg <sam@mars.ravnborg.org>
Santosh Shilimkar <santosh.shilimkar@oracle.org>
Santosh Shilimkar <ssantosh@kernel.org>
Sarangdhar Joshi <spjoshi@codeaurora.org>
Sam Ravnborg <sam@mars.ravnborg.org>
Santosh Shilimkar <ssantosh@kernel.org>
Santosh Shilimkar <santosh.shilimkar@oracle.org>
Sascha Hauer <s.hauer@pengutronix.de>
S.Çağlar Onur <caglar@pardus.org.tr>
Sean Christopherson <seanjc@google.com> <sean.j.christopherson@intel.com>
Sean Nyekjaer <sean@geanix.com> <sean.nyekjaer@prevas.dk>
Sebastian Reichel <sre@kernel.org> <sebastian.reichel@collabora.co.uk>
Sebastian Reichel <sre@kernel.org> <sre@debian.org>
Sedat Dilek <sedat.dilek@gmail.com> <sedat.dilek@credativ.de>
Sebastian Reichel <sre@kernel.org> <sebastian.reichel@collabora.co.uk>
Shiraz Hashim <shiraz.linux.kernel@gmail.com> <shiraz.hashim@st.com>
Shuah Khan <shuah@kernel.org> <shuahkhan@gmail.com>
Shuah Khan <shuah@kernel.org> <shuah.khan@hp.com>
Shuah Khan <shuah@kernel.org> <shuahkh@osg.samsung.com>
Shuah Khan <shuah@kernel.org> <shuah.kh@samsung.com>
Simon Arlott <simon@octiron.net> <simon@fire.lp0.eu>
Simon Kelley <simon@thekelleys.org.uk>
Stéphane Witzmann <stephane.witzmann@ubpmes.univ-bpclermont.fr>
Stephen Hemminger <shemminger@osdl.org>
Steve Wise <larrystevenwise@gmail.com> <swise@chelsio.com>
Steve Wise <larrystevenwise@gmail.com> <swise@opengridcomputing.com>
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Subhash Jadavani <subhashj@codeaurora.org>
Sudeep Holla <sudeep.holla@arm.com> Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Sumit Semwal <sumit.semwal@ti.com>
Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Tejun Heo <htejun@gmail.com>
Thomas Graf <tgraf@suug.ch>
Thomas Pedersen <twp@codeaurora.org>
Tiezhu Yang <yangtiezhu@loongson.cn> <kernelpatch@126.com>
Todor Tomov <todor.too@gmail.com> <todor.tomov@linaro.org>
Tony Luck <tony.luck@intel.com>
TripleX Chung <xxx.phy@gmail.com> <triplex@zh-kernel.org>
TripleX Chung <xxx.phy@gmail.com> <zhongyu@18mail.cn>
TripleX Chung <xxx.phy@gmail.com> <triplex@zh-kernel.org>
Tsuneo Yoshioka <Tsuneo.Yoshioka@f-secure.com>
Tycho Andersen <tycho@tycho.pizza> <tycho@tycho.ws>
Uwe Kleine-König <ukleinek@informatik.uni-freiburg.de>
Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Uwe Kleine-König <ukleinek@strlen.de>
Uwe Kleine-König <ukl@pengutronix.de>
Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Vinod Koul <vkoul@kernel.org> <vinod.koul@intel.com>
Vinod Koul <vkoul@kernel.org> <vinod.koul@linux.intel.com>
Vinod Koul <vkoul@kernel.org> <vkoul@infradead.org>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar@st.com>
Viresh Kumar <vireshk@kernel.org> <viresh.linux@gmail.com>
Vivien Didelot <vivien.didelot@gmail.com> <vivien.didelot@savoirfairelinux.com>
Viresh Kumar <vireshk@kernel.org> <viresh.kumar2@arm.com>
Vlad Dogaru <ddvlad@gmail.com> <vlad.dogaru@intel.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@virtuozzo.com>
WeiXiong Liao <gmpy.liaowx@gmail.com> <liaoweixiong@allwinnertech.com>
Vladimir Davydov <vdavydov.dev@gmail.com> <vdavydov@parallels.com>
Takashi YOSHII <takashi.yoshii.zj@renesas.com>
Will Deacon <will@kernel.org> <will.deacon@arm.com>
Wolfram Sang <wsa@kernel.org> <w.sang@pengutronix.de>
Wolfram Sang <wsa@kernel.org> <wsa@the-dreams.de>
Yakir Yang <kuankuan.y@gmail.com> <ykk@rock-chips.com>
Yusuke Goda <goda.yusuke@renesas.com>
Gustavo Padovan <gustavo@las.ic.unicamp.br>
Gustavo Padovan <padovan@profusion.mobi>
Changbin Du <changbin.du@intel.com> <changbin.du@intel.com>
Changbin Du <changbin.du@intel.com> <changbin.du@gmail.com>

View File

@@ -16,5 +16,3 @@ In addition, other licenses may also apply. Please see:
Documentation/process/license-rules.rst
for more details.
All contributions to the Linux Kernel are subject to this COPYING file.

180
CREDITS
View File

@@ -34,7 +34,7 @@ S: Romania
N: Mark Adler
E: madler@alumni.caltech.edu
W: https://alumnus.caltech.edu/~madler/
W: http://alumnus.caltech.edu/~madler/
D: zlib decompression
N: Monalisa Agrawal
@@ -62,7 +62,7 @@ S: United Kingdom
N: Werner Almesberger
E: werner@almesberger.net
W: https://www.almesberger.net/
W: http://www.almesberger.net/
D: dosfs, LILO, some fd features, ATM, various other hacks here and there
S: Buenos Aires
S: Argentina
@@ -96,9 +96,9 @@ S: USA
N: Erik Andersen
E: andersen@codepoet.org
W: https://www.codepoet.org/
W: http://www.codepoet.org/
P: 1024D/30D39057 1BC4 2742 E885 E4DE 9301 0C82 5F9B 643E 30D3 9057
D: Maintainer of ide-cd and Uniform CD-ROM driver,
D: Maintainer of ide-cd and Uniform CD-ROM driver,
D: ATAPI CD-Changer support, Major 2.1.x CD-ROM update.
S: 352 North 525 East
S: Springville, Utah 84663
@@ -114,7 +114,7 @@ S: Canada K2P 0X3
N: H. Peter Anvin
E: hpa@zytor.com
W: https://www.zytor.com/~hpa/
W: http://www.zytor.com/~hpa/
P: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD 1E DF FE 69 EE 35 BD 74
D: Author of the SYSLINUX boot loader, maintainer of the linux.* news
D: hierarchy and the Linux Device List; various kernel hacks
@@ -124,7 +124,7 @@ S: USA
N: Andrea Arcangeli
E: andrea@suse.de
W: https://www.kernel.org/pub/linux/kernel/people/andrea/
W: http://www.kernel.org/pub/linux/kernel/people/andrea/
P: 1024D/68B9CB43 13D9 8355 295F 4823 7C49 C012 DFA1 686E 68B9 CB43
P: 1024R/CB4660B9 CC A0 71 81 F4 A0 63 AC C0 4B 81 1D 8C 15 C8 E5
D: Parport hacker
@@ -191,10 +191,6 @@ N: Krishna Balasubramanian
E: balasub@cis.ohio-state.edu
D: Wrote SYS V IPC (part of standard kernel since 0.99.10)
B: Robert Baldyga
E: r.baldyga@hackerion.com
D: Samsung S3FWRN5 NCI NFC Controller
N: Chris Ball
E: chris@printf.net
D: Former maintainer of the MMC/SD/SDIO subsystem.
@@ -263,7 +259,7 @@ N: Paul Barton-Davis
E: pbd@op.net
D: Driver for WaveFront soundcards (Turtle Beach Maui, Tropez, Tropez+)
D: Various bugfixes and changes to sound drivers
S: USA
S: USA
N: Carlos Henrique Bauer
E: chbauer@acm.org
@@ -343,7 +339,7 @@ S: Haifa, Israel
N: Johannes Berg
E: johannes@sipsolutions.net
W: https://johannes.sipsolutions.net/
W: http://johannes.sipsolutions.net/
P: 4096R/7BF9099A C0EB C440 F6DA 091C 884D 8532 E0F3 73F3 7BF9 099A
D: powerpc & 802.11 hacker
@@ -380,7 +376,7 @@ D: Original author of the Linux networking code
N: Anton Blanchard
E: anton@samba.org
W: https://samba.org/~anton/
W: http://samba.org/~anton/
P: 1024/8462A731 4C 55 86 34 44 59 A7 99 2B 97 88 4A 88 9A 0D 97
D: sun4 port, Sparc hacker
@@ -513,7 +509,7 @@ S: Sweden
N: Paul Bristow
E: paul@paulbristow.net
W: https://paulbristow.net/linux/idefloppy.html
W: http://paulbristow.net/linux/idefloppy.html
D: Maintainer of IDE/ATAPI floppy driver
N: Stefano Brivio
@@ -522,7 +518,7 @@ D: Broadcom B43 driver
N: Dominik Brodowski
E: linux@brodo.de
W: https://www.brodo.de/
W: http://www.brodo.de/
P: 1024D/725B37C6 190F 3E77 9C89 3B6D BECD 46EE 67C3 0308 725B 37C6
D: parts of CPUFreq code, ACPI bugfixes, PCMCIA rewrite, cpufrequtils
S: Tuebingen, Germany
@@ -571,11 +567,6 @@ D: Original author of Amiga FFS filesystem
S: Orlando, Florida
S: USA
N: Paul Burton
E: paulburton@kernel.org
W: https://pburton.com
D: MIPS maintainer 2018-2020
N: Lennert Buytenhek
E: kernel@wantstofly.org
D: Original (2.4) rewrite of the ethernet bridging code
@@ -740,11 +731,6 @@ S: (ask for current address)
S: Portland, Oregon
S: USA
N: Jason Cooper
D: ARM/Marvell SOC co-maintainer
D: irqchip co-maintainer
D: MVEBU PCI DRIVER co-maintainer
N: Robin Cornelius
E: robincornelius@users.sourceforge.net
D: Ralink rt2x00 WLAN driver
@@ -765,7 +751,7 @@ S: Santa Cruz, California
S: USA
N: Luis Correia
E: luisfcorreia@gmail.com
E: lfcorreia@users.sf.net
D: Ralink rt2x00 WLAN driver
S: Belas, Portugal
@@ -854,12 +840,6 @@ D: trivial hack to add variable address length routing to Rose.
D: AX25-HOWTO, HAM-HOWTO, IPX-HOWTO, NET-2-HOWTO
D: ax25-utils maintainer.
N: Kamil Debski
E: kamil@wypas.org
D: Samsung S5P 2D graphics acceleration and Multi Format Codec drivers
D: Samsung USB2 phy drivers
D: PWM fan driver
N: Helge Deller
E: deller@gmx.de
W: http://www.parisc-linux.org/
@@ -880,7 +860,7 @@ D: Promise DC4030VL caching HD controller drivers
N: Todd J. Derr
E: tjd@fore.com
W: https://www.wordsmith.org/~tjd
W: http://www.wordsmith.org/~tjd
D: Random console hacks and other miscellaneous stuff
S: 3000 FORE Drive
S: Warrendale, Pennsylvania 15086
@@ -909,8 +889,8 @@ S: USA
N: Matt Domsch
E: Matt_Domsch@dell.com
W: https://www.dell.com/linux
W: https://domsch.com/linux
W: http://www.dell.com/linux
W: http://domsch.com/linux
D: Linux/IA-64
D: Dell PowerEdge server, SCSI layer, misc drivers, and other patches
S: Dell Inc.
@@ -1007,7 +987,7 @@ S: USA
N: Randy Dunlap
E: rdunlap@infradead.org
W: https://www.infradead.org/~rdunlap/
W: http://www.infradead.org/~rdunlap/
D: Linux-USB subsystem, USB core/UHCI/printer/storage drivers
D: x86 SMP, ACPI, bootflag hacking
D: documentation, builds
@@ -1172,7 +1152,7 @@ S: Germany
N: Jeremy Fitzhardinge
E: jeremy@goop.org
W: https://www.goop.org/~jeremy
W: http://www.goop.org/~jeremy
D: author of userfs filesystem
D: Improved mmap and munmap handling
D: General mm minor tidyups
@@ -1210,7 +1190,7 @@ N: Daniel J. Frasnelli
E: dfrasnel@alphalinux.org
W: http://www.alphalinux.org/
P: 1024/3EF87611 B9 F1 44 50 D3 E8 C2 80 DA E5 55 AA 56 7C 42 DA
D: DEC Alpha hacker
D: DEC Alpha hacker
D: Miscellaneous bug squisher
N: Jim Freeman
@@ -1310,7 +1290,7 @@ S: P.O. Box 76, Epping
S: New South Wales, 2121
S: Australia
N: Carlos E. Gorges
N: Carlos E. Gorges
E: carlos@techlinux.com.br
D: fix smp support on cmpci driver
P: 2048G/EA3C4B19 FF31 33A6 0362 4915 B7EB E541 17D0 0379 EA3C 4B19
@@ -1351,7 +1331,7 @@ E: wgreathouse@smva.com
E: wgreathouse@myfavoritei.com
D: Current Belkin USB Serial Adapter F5U103 hacker
D: Kernel hacker, embedded systems
S: 7802 Fitzwater Road
S: 7802 Fitzwater Road
S: Brecksville, OH 44141-1334
S: USA
@@ -1392,7 +1372,7 @@ N: Grant Guenther
E: grant@torque.net
W: http://www.torque.net/linux-pp.html
D: original author of ppa driver for parallel port ZIP drive
D: original architect of the parallel-port sharing scheme
D: original architect of the parallel-port sharing scheme
D: PARIDE subsystem: drivers for parallel port IDE & ATAPI devices
S: 44 St. Joseph Street, Suite 506
S: Toronto, Ontario, M4Y 2W4
@@ -1475,7 +1455,7 @@ S: The Netherlands
N: Oliver Hartkopp
E: oliver.hartkopp@volkswagen.de
W: https://www.volkswagen.de
W: http://www.volkswagen.de
D: Controller Area Network (network layer core)
S: Brieffach 1776
S: 38436 Wolfsburg
@@ -1534,7 +1514,7 @@ N: Benjamin Herrenschmidt
E: benh@kernel.crashing.org
D: Various parts of PPC/PPC64 & PowerMac
S: 312/107 Canberra Avenue
S: Griffith, ACT 2603
S: Griffith, ACT 2603
S: Australia
N: Andreas Herrmann
@@ -1614,13 +1594,13 @@ S: Germany
N: Kenji Hollis
E: kenji@bitgate.com
W: https://www.bitgate.com/
W: http://www.bitgate.com/
D: Berkshire PC Watchdog Driver
D: Small/Industrial Driver Project
N: Nick Holloway
E: Nick.Holloway@pyrites.org.uk
W: https://www.pyrites.org.uk/
W: http://www.pyrites.org.uk/
P: 1024/36115A04 F4E1 3384 FCFD C055 15D6 BA4C AB03 FBF8 3611 5A04
D: Occasional Linux hacker...
S: (ask for current address)
@@ -1657,10 +1637,6 @@ S: Panoramastrasse 18
S: D-69126 Heidelberg
S: Germany
N: Simon Horman
M: horms@verge.net.au
D: Renesas ARM/ARM64 SoC maintainer
N: Christopher Horn
E: chorn@warwick.net
D: Miscellaneous sysctl hacks
@@ -1670,7 +1646,7 @@ S: USA
N: Harald Hoyer
E: harald@redhat.com
W: https://www.harald-hoyer.de
W: http://www.harald-hoyer.de
D: ip_masq_quake
D: md boot support
S: Am Strand 5
@@ -1836,7 +1812,7 @@ S: Hungary
N: Bernhard Kaindl
E: bkaindl@netway.at
E: edv@bartelt.via.at
D: Author of a menu based configuration tool, kmenu, which
D: Author of a menu based configuration tool, kmenu, which
D: is the predecessor of 'make menuconfig' and 'make xconfig'.
D: digiboard driver update(modularisation work and 2.1.x upd)
S: Tallak 95
@@ -1871,7 +1847,7 @@ E: kas@fi.muni.cz
D: Author of the COSA/SRP sync serial board driver.
D: Port of the syncppp.c from the 2.0 to the 2.1 kernel.
P: 1024/D3498839 0D 99 A7 FB 20 66 05 D7 8B 35 FC DE 05 B1 8A 5E
W: https://www.fi.muni.cz/~kas/
W: http://www.fi.muni.cz/~kas/
S: c/o Faculty of Informatics, Masaryk University
S: Botanicka' 68a
S: 602 00 Brno
@@ -1895,9 +1871,8 @@ S: The Netherlands
N: Martin Kepplinger
E: martink@posteo.de
E: martin.kepplinger@puri.sm
E: martin.kepplinger@ginzinger.com
W: http://www.martinkepplinger.com
P: 4096R/5AB387D3 F208 2B88 0F9E 4239 3468 6E3F 5003 98DF 5AB3 87D3
D: mma8452 accelerators iio driver
D: pegasus_notetaker input driver
D: Kernel fixes and cleanups
@@ -1921,15 +1896,6 @@ S: 660 Harvard Ave. #7
S: Santa Clara, CA 95051
S: USA
N: Kukjin Kim
E: kgene@kernel.org
D: Samsung S3C, S5P and Exynos ARM architectures
N: Sangbeom Kim
E: sbkim73@samsung.com
D: Samsung SoC Audio (ASoC) drivers
D: Samsung PMIC (RTC, regulators, MFD) drivers
N: Russell King
E: rmk@arm.linux.org.uk
D: Linux/arm integrator, maintainer & hacker
@@ -1966,10 +1932,6 @@ S: Post Office Box 611311
S: San Jose, California 95161-1311
S: USA
N: Hartmut Knaack
E: knaack.h@gmx.de
D: IIO subsystem and drivers
N: Thorsten Knabe
E: Thorsten Knabe <tek@rbg.informatik.tu-darmstadt.de>
E: Thorsten Knabe <tek01@hrzpub.tu-darmstadt.de>
@@ -2027,7 +1989,7 @@ W: http://www.xos.nl/
D: IP transparent proxy support
S: X/OS Experts in Open Systems BV
S: Kruislaan 419
S: 1098 VA Amsterdam
S: 1098 VA Amsterdam
S: The Netherlands
N: Goran Koruga
@@ -2045,7 +2007,7 @@ S: Prague, Czech Republic
N: Gene Kozin
E: 74604.152@compuserve.com
W: https://www.sangoma.com
W: http://www.sangoma.com
D: WAN Router & Sangoma WAN drivers
S: Sangoma Technologies Inc.
S: 7170 Warden Avenue, Unit 2
@@ -2099,7 +2061,7 @@ S: Germany
N: Andrzej M. Krzysztofowicz
E: ankry@mif.pg.gda.pl
D: Some 8-bit XT disk driver and devfs hacking
D: Some 8-bit XT disk driver and devfs hacking
D: Aladdin 1533/1543(C) chipset IDE
D: PIIX chipset IDE
S: ul. Matemblewska 1B/10
@@ -2140,7 +2102,7 @@ D: Original author of software suspend
N: Jaroslav Kysela
E: perex@perex.cz
W: https://www.perex.cz
W: http://www.perex.cz
D: Original Author and Maintainer for HP 10/100 Mbit Network Adapters
D: ISA PnP
S: Sindlovy Dvory 117
@@ -2344,7 +2306,7 @@ S: Finland
N: Daniel J. Maas
E: dmaas@dcine.com
W: https://www.maasdigital.com
W: http://www.maasdigital.com
D: dv1394
N: Hamish Macdonald
@@ -2474,7 +2436,7 @@ E: mge@EZ-Darmstadt.Telekom.de
D: Logical Volume Manager
S: Bartningstr. 12
S: 64289 Darmstadt
S: Germany
S: Germany
N: Mark W. McClelland
E: mmcclell@bigfoot.com
@@ -2558,7 +2520,7 @@ E: meskes@debian.org
P: 1024/04B6E8F5 6C 77 33 CA CC D6 22 03 AB AB 15 A3 AE AD 39 7D
D: Kernel hacker. PostgreSQL hacker. Software watchdog daemon.
D: Maintainer of several Debian packages
S: Th.-Heuss-Str. 61
S: Th.-Heuss-Str. 61
S: D-41812 Erkelenz
S: Germany
@@ -2675,7 +2637,7 @@ D: bug fixes, documentation, minor hackery
N: Paul Moore
E: paul@paul-moore.com
W: https://www.paul-moore.com
W: http://www.paul-moore.com
D: NetLabel, SELinux, audit
N: James Morris
@@ -2796,7 +2758,7 @@ E: neuffer@goofy.zdv.uni-mainz.de
W: http://www.i-Connect.Net/~mike/
D: Developer and maintainer of the EATA-DMA SCSI driver
D: Co-developer EATA-PIO SCSI driver
D: /proc/scsi and assorted other snippets
D: /proc/scsi and assorted other snippets
S: Zum Schiersteiner Grund 2
S: 55127 Mainz
S: Germany
@@ -2814,7 +2776,7 @@ N: David C. Niemi
E: niemi@tux.org
W: http://www.tux.org/~niemi/
D: Assistant maintainer of Mtools, fdutils, and floppy driver
D: Administrator of Tux.Org Linux Server, https://www.tux.org
D: Administrator of Tux.Org Linux Server, http://www.tux.org
S: 2364 Old Trail Drive
S: Reston, Virginia 20191
S: USA
@@ -2863,10 +2825,6 @@ D: IPX development and support
N: Venkatesh Pallipadi (Venki)
D: x86/HPET
N: Kyungmin Park
E: kyungmin.park@samsung.com
D: Samsung S5Pv210 and Exynos4210 mobile platforms
N: David Parsons
E: orc@pell.chi.il.us
D: improved memory detection code.
@@ -2882,7 +2840,7 @@ S: USA
N: Mikulas Patocka
E: mikulas@artax.karlin.mff.cuni.cz
W: https://artax.karlin.mff.cuni.cz/~mikulas/
W: http://artax.karlin.mff.cuni.cz/~mikulas/
P: 1024/BB11D2D5 A0 F1 28 4A C4 14 1E CF 92 58 7A 8F 69 BC A4 D3
D: Read/write HPFS filesystem
S: Weissova 8
@@ -2904,7 +2862,7 @@ D: RFC2385 Support for TCP
N: Barak A. Pearlmutter
E: bap@cs.unm.edu
W: https://www.cs.unm.edu/~bap/
W: http://www.cs.unm.edu/~bap/
P: 512/602D785D 9B A1 83 CD EE CB AD 93 20 C6 4C B7 F5 E9 60 D4
D: Author of mark-and-sweep GC integrated by Alan Cox
S: Computer Science Department
@@ -3034,7 +2992,7 @@ D: Embedded PowerPC 4xx/6xx/7xx/74xx support
S: Chandler, Arizona 85249
S: USA
N: Frederic Potter
N: Frederic Potter
E: fpotter@cirpack.com
D: Some PCI kernel support
@@ -3067,7 +3025,7 @@ S: United Kingdom
N: Daniel Quinlan
E: quinlan@pathname.com
W: https://www.pathname.com/~quinlan/
W: http://www.pathname.com/~quinlan/
D: FSSTND coordinator; FHS editor
D: random Linux documentation, patches, and hacks
S: 4390 Albany Drive #41A
@@ -3136,16 +3094,14 @@ W: http://www.qsl.net/dl1bke/
D: Generic Z8530 driver, AX.25 DAMA slave implementation
D: Several AX.25 hacks
N: Ricardo Ribalda
E: ribalda@kernel.org
N: Ricardo Ribalda Delgado
E: ricardo.ribalda@gmail.com
W: http://ribalda.com
D: PLX USB338x driver
D: PCA9634 driver
D: Option GTM671WFS
D: Fintek F81216A
D: AD5761 iio driver
D: TI DAC7612 driver
D: Sony IMX214 driver
D: Various kernel hacks
S: Qtechnology A/S
S: Valby Langgade 142
@@ -3162,7 +3118,7 @@ S: France
N: Rik van Riel
E: riel@redhat.com
W: https://www.surriel.com/
W: http://www.surriel.com/
D: Linux-MM site, Documentation/admin-guide/sysctl/*, swap/mm readaround
D: kswapd fixes, random kernel hacker, rmap VM,
D: nl.linux.org administrator, minor scheduler additions
@@ -3278,7 +3234,7 @@ S: Germany
N: Paul `Rusty' Russell
E: rusty@rustcorp.com.au
W: https://ozlabs.org/~rusty
W: http://ozlabs.org/~rusty
D: Ruggedly handsome.
D: netfilter, ipchains with Michael Neuling.
S: 52 Moore St
@@ -3341,9 +3297,7 @@ S: France
N: Aleksa Sarai
E: cyphar@cyphar.com
W: https://www.cyphar.com/
D: /sys/fs/cgroup/pids
D: openat2(2)
S: Sydney, Australia
D: `pids` cgroup subsystem
N: Dipankar Sarma
E: dipankar@in.ibm.com
@@ -3401,7 +3355,7 @@ S: Germany
N: Robert Schwebel
E: robert@schwebel.de
W: https://www.schwebel.de
W: http://www.schwebel.de
D: Embedded hacker and book author,
D: AMD Elan support for Linux
S: Pengutronix
@@ -3467,21 +3421,21 @@ S: Klosterweg 28 / i309
S: 76131 Karlsruhe
S: Germany
N: James Simmons
N: James Simmons
E: jsimmons@infradead.org
E: jsimmons@users.sf.net
E: jsimmons@users.sf.net
D: Frame buffer device maintainer
D: input layer development
D: tty/console layer
D: various mipsel devices
S: 115 Carmel Avenue
D: various mipsel devices
S: 115 Carmel Avenue
S: El Cerrito CA 94530
S: USA
S: USA
N: Jaspreet Singh
E: jaspreet@sangoma.com
W: www.sangoma.com
D: WANPIPE drivers & API Support for Sangoma S508/FT1 cards
D: WANPIPE drivers & API Support for Sangoma S508/FT1 cards
S: Sangoma Technologies Inc.,
S: 1001 Denison Street
S: Suite 101
@@ -3505,7 +3459,7 @@ N: Craig Small
E: csmall@triode.apana.org.au
E: vk2xlz@gonzo.vk2xlz.ampr.org (packet radio)
D: Gracilis PackeTwin device driver
D: RSPF daemon
D: RSPF daemon
S: 10 Stockalls Place
S: Minto, NSW, 2566
S: Australia
@@ -3577,7 +3531,7 @@ S: Australia
N: Henrik Storner
E: storner@image.dk
W: http://www.image.dk/~storner/
W: https://www.sslug.dk/
W: http://www.sslug.dk/
D: Configure script: Invented tristate for module-configuration
D: vfat/msdos integration, kerneld docs, Linux promotion
D: Miscellaneous bug-fixes
@@ -3611,7 +3565,7 @@ S: USA
N: Eugene Surovegin
E: ebs@ebshome.net
W: https://kernel.ebshome.net/
W: http://kernel.ebshome.net/
P: 1024D/AE5467F1 FF22 39F1 6728 89F6 6E6C 2365 7602 F33D AE54 67F1
D: Embedded PowerPC 4xx: EMAC, I2C, PIC and random hacks/fixes
S: Sunnyvale, California 94085
@@ -3641,7 +3595,7 @@ S: France
N: Urs Thuermann
E: urs.thuermann@volkswagen.de
W: https://www.volkswagen.de
W: http://www.volkswagen.de
D: Controller Area Network (network layer core)
S: Brieffach 1776
S: 38436 Wolfsburg
@@ -3688,7 +3642,7 @@ S: Canada K2L 1S2
N: Andrew Tridgell
E: tridge@samba.org
W: https://samba.org/tridge/
W: http://samba.org/tridge/
D: dosemu, networking, samba
S: 3 Ballow Crescent
S: MacGregor A.C.T 2615
@@ -3715,7 +3669,7 @@ N: Tsu-Sheng Tsao
E: tsusheng@scf.usc.edu
D: IGMP(Internet Group Management Protocol) version 2
S: 2F 14 ALY 31 LN 166 SEC 1 SHIH-PEI RD
S: Taipei
S: Taipei
S: Taiwan 112
S: Republic of China
S: 24335 Delta Drive
@@ -3876,7 +3830,7 @@ D: Produced the Slackware distribution, updated the SVGAlib
D: patches for ghostscript, worked on color 'ls', etc.
S: 301 15th Street S.
S: Moorhead, Minnesota 56560
S: USA
S: USA
N: Jos Vos
E: jos@xos.nl
@@ -3884,7 +3838,7 @@ W: http://www.xos.nl/
D: Various IP firewall updates, ipfwadm
S: X/OS Experts in Open Systems BV
S: Kruislaan 419
S: 1098 VA Amsterdam
S: 1098 VA Amsterdam
S: The Netherlands
N: Jeroen Vreeken
@@ -3926,7 +3880,7 @@ D: The Linux Support Team Erlangen
N: David Weinehall
E: tao@acc.umu.se
P: 1024D/DC47CA16 7ACE 0FB0 7A74 F994 9B36 E1D1 D14E 8526 DC47 CA16
W: https://www.acc.umu.se/~tao/
W: http://www.acc.umu.se/~tao/
D: v2.0 kernel maintainer
D: Fixes for the NE/2-driver
D: Miscellaneous MCA-support
@@ -3951,7 +3905,7 @@ S: USA
N: Harald Welte
E: laforge@netfilter.org
P: 1024D/30F48BFF DBDE 6912 8831 9A53 879B 9190 5DA5 C655 30F4 8BFF
W: https://gnumonks.org/users/laforge
W: http://gnumonks.org/users/laforge
D: netfilter: new nat helper infrastructure
D: netfilter: ULOG, ECN, DSCP target
D: netfilter: TTL match
@@ -4122,7 +4076,7 @@ S: People's Repulic of China
N: Victor Yodaiken
E: yodaiken@fsmlabs.com
D: RTLinux (RealTime Linux)
S: POB 1822
S: POB 1822
S: Socorro NM, 87801
S: USA
@@ -4220,7 +4174,7 @@ D: EISA/sysfs subsystem
S: France
# Don't add your name here, unless you really _are_ after Marc
# alphabetically. Leonard used to be very proud of being the
# alphabetically. Leonard used to be very proud of being the
# last entry, and he'll get positively pissed if he can't even
# be second-to-last. (and this file really _is_ supposed to be
# in alphabetic order)

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@@ -1,3 +1,2 @@
# SPDX-License-Identifier: GPL-2.0-only
output
*.pyc

View File

@@ -32,7 +32,7 @@ The different levels of stability are:
layout of the files below for details on how to do this.)
obsolete/
This directory documents interfaces that are still remaining in
This directory documents interfaces that are still remaining in
the kernel, but are marked to be removed at some later point in
time. The description of the interface will document the reason
why it is obsolete and when it can be expected to be removed.
@@ -58,14 +58,6 @@ Users: All users of this interface who wish to be notified when
be changed further.
Note:
The fields should be use a simple notation, compatible with ReST markup.
Also, the file **should not** have a top-level index, like::
===
foo
===
How things move between levels:
Interfaces in stable may move to obsolete, as long as the proper

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@@ -8,11 +8,11 @@ Description: Device DAX is the device-centric analogue of Filesystem
system. Device DAX is strict, precise and predictable.
Specifically this interface:
1. Guarantees fault granularity with respect to a given
page size (pte, pmd, or pud) set at configuration time.
1/ Guarantees fault granularity with respect to a given
page size (pte, pmd, or pud) set at configuration time.
2. Enforces deterministic behavior by being strict about
what fault scenarios are supported.
2/ Enforces deterministic behavior by being strict about
what fault scenarios are supported.
The /sys/class/dax/ interface enumerates all the
device-dax instances in the system. The ABI is

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@@ -1,9 +0,0 @@
What: /sys/devices/system/cpu/cpuidle/current_governor_ro
Date: April, 2020
Contact: linux-pm@vger.kernel.org
Description:
current_governor_ro shows current using cpuidle governor, but read only.
with the update that cpuidle governor can be changed at runtime in default,
both current_governor and current_governor_ro co-exist under
/sys/devices/system/cpu/cpuidle/ file, it's duplicate so make
current_governor_ro obselete.

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@@ -7,13 +7,10 @@ Description: It is possible to switch the cpi setting of the mouse with the
setting reported by the mouse. This number has to be further
processed to receive the real dpi value:
===== ====
VALUE DPI
===== ====
1 400
2 800
4 1600
===== ====
This file is readonly.
Has never been used. If bookkeeping is done, it's done in userland tools.

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@@ -1,22 +0,0 @@
These files allow sending arbitrary IPC commands to the PMC/SCU which
may be dangerous. These will be removed eventually and should not be
used in any new applications.
What: /sys/bus/platform/devices/INT34D2:00/simplecmd
Date: Jun 2015
KernelVersion: 4.1
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This interface allows userspace to send an arbitrary
IPC command to the PMC/SCU.
Format: %d %d where first number is command and
second number is subcommand.
What: /sys/bus/platform/devices/INT34D2:00/northpeak
Date: Jun 2015
KernelVersion: 4.1
Contact: Mika Westerberg <mika.westerberg@linux.intel.com>
Description: This interface allows userspace to enable and disable
Northpeak through the PMC/SCU.
Format: %u.

View File

@@ -13,8 +13,6 @@ Description:
GPIOs are identified as they are inside the kernel, using integers in
the range 0..INT_MAX. See Documentation/admin-guide/gpio for more information.
::
/sys/class/gpio
/export ... asks the kernel to export a GPIO to userspace
/unexport ... to return a GPIO to the kernel

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@@ -1,9 +0,0 @@
This ABI is renamed and moved to a new location /sys/kernel/fadump/enabled.
What: /sys/kernel/fadump_enabled
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
Description: read only
Primarily used to identify whether the FADump is enabled in
the kernel or not.
User: Kdump service

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@@ -1,10 +0,0 @@
This ABI is renamed and moved to a new location /sys/kernel/fadump/registered.¬
What: /sys/kernel/fadump_registered
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
Description: read/write
Helps to control the dump collect feature from userspace.
Setting 1 to this file enables the system to collect the
dump and 0 to disable it.
User: Kdump service

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@@ -1,10 +0,0 @@
This ABI is renamed and moved to a new location /sys/kernel/fadump/release_mem.¬
What: /sys/kernel/fadump_release_mem
Date: Feb 2012
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
This is a special sysfs file and only available when
the system is booted to capture the vmcore using FADump.
It is used to release the memory reserved by FADump to
save the crash dump.

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@@ -1,23 +0,0 @@
What: /sys/fs/selinux/checkreqprot
Date: April 2005 (predates git)
KernelVersion: 2.6.12-rc2 (predates git)
Contact: selinux@vger.kernel.org
Description:
The selinuxfs "checkreqprot" node allows SELinux to be configured
to check the protection requested by userspace for mmap/mprotect
calls instead of the actual protection applied by the kernel.
This was a compatibility mechanism for legacy userspace and
for the READ_IMPLIES_EXEC personality flag. However, if set to
1, it weakens security by allowing mappings to be made executable
without authorization by policy. The default value of checkreqprot
at boot was changed starting in Linux v4.4 to 0 (i.e. check the
actual protection), and Android and Linux distributions have been
explicitly writing a "0" to /sys/fs/selinux/checkreqprot during
initialization for some time. Support for setting checkreqprot to 1
will be removed no sooner than June 2021, at which point the kernel
will always cease using checkreqprot internally and will always
check the actual protections being applied upon mmap/mprotect calls.
The checkreqprot selinuxfs node will remain for backward compatibility
but will discard writes of the "0" value and will reject writes of the
"1" value when this mechanism is removed.

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@@ -1,26 +0,0 @@
What: /sys/fs/selinux/disable
Date: April 2005 (predates git)
KernelVersion: 2.6.12-rc2 (predates git)
Contact: selinux@vger.kernel.org
Description:
The selinuxfs "disable" node allows SELinux to be disabled at runtime
prior to a policy being loaded into the kernel. If disabled via this
mechanism, SELinux will remain disabled until the system is rebooted.
The preferred method of disabling SELinux is via the "selinux=0" boot
parameter, but the selinuxfs "disable" node was created to make it
easier for systems with primitive bootloaders that did not allow for
easy modification of the kernel command line. Unfortunately, allowing
for SELinux to be disabled at runtime makes it difficult to secure the
kernel's LSM hooks using the "__ro_after_init" feature.
Thankfully, the need for the SELinux runtime disable appears to be
gone, the default Kconfig configuration disables this selinuxfs node,
and only one of the major distributions, Fedora, supports disabling
SELinux at runtime. Fedora is in the process of removing the
selinuxfs "disable" node and once that is complete we will start the
slow process of removing this code from the kernel.
More information on /sys/fs/selinux/disable can be found under the
CONFIG_SECURITY_SELINUX_DISABLE Kconfig option.

View File

@@ -5,7 +5,6 @@ Description:
devfs has been unmaintained for a number of years, has unfixable
races, contains a naming policy within the kernel that is
against the LSB, and can be replaced by using udev.
The files fs/devfs/*, include/linux/devfs_fs*.h were removed,
along with the assorted devfs function calls throughout the
kernel tree.

View File

@@ -7,7 +7,6 @@ Description:
to implement sensible device security policies, and its low level
of abstraction that required userspace clients to duplicate much
of the kernel's ieee1394 core functionality.
Replaced by /dev/fw*, i.e. the <linux/firewire-cdev.h> ABI of
firewire-core.

View File

@@ -10,4 +10,4 @@ Description: This file was deprecated because there no longer was a way to
claim just control over a single rfkill instance.
This file was scheduled to be removed in 2012, and was removed
in 2016.
Values: 0: Kernel handles events
Values: 0: Kernel handles events

View File

@@ -1,9 +0,0 @@
This ABI is moved to /sys/firmware/opal/mpipl/release_core.
What: /sys/kernel/fadump_release_opalcore
Date: Sep 2019
Contact: linuxppc-dev@lists.ozlabs.org
Description: write only
The sysfs file is available when the system is booted to
collect the dump on OPAL based machine. It used to release
the memory used to collect the opalcore.

View File

@@ -8,7 +8,6 @@ Description:
performance issues in its first generation. Any video1394 user had
to use raw1394 + libraw1394 too because video1394 did not provide
asynchronous I/O for device discovery and configuration.
Replaced by /dev/fw*, i.e. the <linux/firewire-cdev.h> ABI of
firewire-core.

View File

@@ -14,17 +14,13 @@ Description:
Each /dev/fw* is associated with one IEEE 1394 node, which can
be remote or local nodes. Operations on a /dev/fw* file have
different scope:
- The 1394 node which is associated with the file:
- Asynchronous request transmission
- Get the Configuration ROM
- Query node ID
- Query maximum speed of the path between this node
and local node
- The 1394 bus (i.e. "card") to which the node is attached to:
- Isochronous stream transmission and reception
- Asynchronous stream transmission and reception
- Asynchronous broadcast request transmission
@@ -35,9 +31,7 @@ Description:
manager
- Query cycle time
- Bus reset initiation, bus reset event reception
- All 1394 buses:
- Allocation of IEEE 1212 address ranges on the local
link layers, reception of inbound requests to such
an address range, asynchronous response transmission
@@ -49,7 +43,6 @@ Description:
userland implement different access permission models, some
operations are restricted to /dev/fw* files that are associated
with a local node:
- Addition of descriptors or directories to the local
nodes' Configuration ROM
- PHY packet transmission and reception
@@ -62,50 +55,50 @@ Description:
The following file operations are supported:
open(2)
Currently the only useful flags are O_RDWR.
Currently the only useful flags are O_RDWR.
ioctl(2)
Initiate various actions. Some take immediate effect, others
are performed asynchronously while or after the ioctl returns.
See the inline documentation in <linux/firewire-cdev.h> for
descriptions of all ioctls.
Initiate various actions. Some take immediate effect, others
are performed asynchronously while or after the ioctl returns.
See the inline documentation in <linux/firewire-cdev.h> for
descriptions of all ioctls.
poll(2), select(2), epoll_wait(2) etc.
Watch for events to become available to be read.
Watch for events to become available to be read.
read(2)
Receive various events. There are solicited events like
outbound asynchronous transaction completion or isochronous
buffer completion, and unsolicited events such as bus resets,
request reception, or PHY packet reception. Always use a read
buffer which is large enough to receive the largest event that
could ever arrive. See <linux/firewire-cdev.h> for descriptions
of all event types and for which ioctls affect reception of
events.
Receive various events. There are solicited events like
outbound asynchronous transaction completion or isochronous
buffer completion, and unsolicited events such as bus resets,
request reception, or PHY packet reception. Always use a read
buffer which is large enough to receive the largest event that
could ever arrive. See <linux/firewire-cdev.h> for descriptions
of all event types and for which ioctls affect reception of
events.
mmap(2)
Allocate a DMA buffer for isochronous reception or transmission
and map it into the process address space. The arguments should
be used as follows: addr = NULL, length = the desired buffer
size, i.e. number of packets times size of largest packet,
prot = at least PROT_READ for reception and at least PROT_WRITE
for transmission, flags = MAP_SHARED, fd = the handle to the
/dev/fw*, offset = 0.
Allocate a DMA buffer for isochronous reception or transmission
and map it into the process address space. The arguments should
be used as follows: addr = NULL, length = the desired buffer
size, i.e. number of packets times size of largest packet,
prot = at least PROT_READ for reception and at least PROT_WRITE
for transmission, flags = MAP_SHARED, fd = the handle to the
/dev/fw*, offset = 0.
Isochronous reception works in packet-per-buffer fashion except
for multichannel reception which works in buffer-fill mode.
munmap(2)
Unmap the isochronous I/O buffer from the process address space.
Unmap the isochronous I/O buffer from the process address space.
close(2)
Besides stopping and freeing I/O contexts that were associated
with the file descriptor, back out any changes to the local
nodes' Configuration ROM. Deallocate isochronous channels and
bandwidth at the IRM that were marked for kernel-assisted
re- and deallocation.
Besides stopping and freeing I/O contexts that were associated
with the file descriptor, back out any changes to the local
nodes' Configuration ROM. Deallocate isochronous channels and
bandwidth at the IRM that were marked for kernel-assisted
re- and deallocation.
Users: libraw1394;
libdc1394;
libhinawa;
Users: libraw1394
libdc1394
libhinawa
tools like linux-firewire-utils, fwhack, ...

View File

@@ -1,26 +1,22 @@
What: /sys/firmware/acpi/pm_profile
What: /sys/firmware/acpi/pm_profile
Date: 03-Nov-2011
KernelVersion: v3.2
Contact: linux-acpi@vger.kernel.org
Description: The ACPI pm_profile sysfs interface exports the platform
Description: The ACPI pm_profile sysfs interface exports the platform
power management (and performance) requirement expectations
as provided by BIOS. The integer value is directly passed as
retrieved from the FADT ACPI table.
Values: For possible values see ACPI specification:
Values: For possible values see ACPI specification:
5.2.9 Fixed ACPI Description Table (FADT)
Field: Preferred_PM_Profile
Currently these values are defined by spec:
== =================
0 Unspecified
1 Desktop
2 Mobile
3 Workstation
4 Enterprise Server
5 SOHO Server
6 Appliance PC
7 Performance Server
0 Unspecified
1 Desktop
2 Mobile
3 Workstation
4 Enterprise Server
5 SOHO Server
6 Appliance PC
7 Performance Server
>7 Reserved
== =================

View File

@@ -47,7 +47,6 @@ Description:
IEEE 1394 node device attribute.
Read-only and immutable.
Values: 1: The sysfs entry represents a local node (a controller card).
0: The sysfs entry represents a remote node.
@@ -126,9 +125,7 @@ Description:
Read-only attribute, immutable during the target's lifetime.
Format, as exposed by firewire-sbp2 since 2.6.22, May 2007:
Colon-separated hexadecimal string representations of
u64 EUI-64 : u24 directory_ID : u16 LUN
without 0x prefixes, without whitespace. The former sbp2 driver
(removed in 2.6.37 after being superseded by firewire-sbp2) used
a somewhat shorter format which was not as close to SAM.

View File

@@ -1,21 +0,0 @@
What: /sys/bus/mhi/devices/.../serialnumber
Date: Sept 2020
KernelVersion: 5.10
Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
Description: The file holds the serial number of the client device obtained
using a BHI (Boot Host Interface) register read after at least
one attempt to power up the device has been done. If read
without having the device power on at least once, the file will
read all 0's.
Users: Any userspace application or clients interested in device info.
What: /sys/bus/mhi/devices/.../oem_pk_hash
Date: Sept 2020
KernelVersion: 5.10
Contact: Bhaumik Bhatt <bbhatt@codeaurora.org>
Description: The file holds the OEM PK Hash value of the endpoint device
obtained using a BHI (Boot Host Interface) register read after
at least one attempt to power up the device has been done. If
read without having the device power on at least once, the file
will read all 0's.
Users: Any userspace application or clients interested in device info.

View File

@@ -9,14 +9,13 @@ Description:
Note: This file is only present if CONFIG_NVMEM_SYSFS
is enabled
ex::
ex:
hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
hexdump /sys/bus/nvmem/devices/qfprom0/nvmem
0000000 0000 0000 0000 0000 0000 0000 0000 0000
*
00000a0 db10 2240 0000 e000 0c00 0c00 0000 0c00
0000000 0000 0000 0000 0000 0000 0000 0000 0000
...
*
0001000
0000000 0000 0000 0000 0000 0000 0000 0000 0000
*
00000a0 db10 2240 0000 e000 0c00 0c00 0000 0c00
0000000 0000 0000 0000 0000 0000 0000 0000 0000
...
*
0001000

View File

@@ -50,10 +50,8 @@ Description:
Tools can use this file and the connected_duration file to
compute the percentage of time that a device has been active.
For example::
echo $((100 * `cat active_duration` / `cat connected_duration`))
For example,
echo $((100 * `cat active_duration` / `cat connected_duration`))
will give an integer percentage. Note that this does not
account for counter wrap.
Users:

View File

@@ -63,6 +63,13 @@ Contact: Stephen Hemminger <sthemmin@microsoft.com>
Description: VCPU (sub)channel is affinitized to
Users: tools/hv/lsvmbus and other debugging tools
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
Date: September. 2017
KernelVersion: 4.14
Contact: Stephen Hemminger <sthemmin@microsoft.com>
Description: VCPU (sub)channel is affinitized to
Users: tools/hv/lsvmbus and other debugging tools
What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/in_mask
Date: September. 2017
KernelVersion: 4.14

View File

@@ -6,7 +6,6 @@ Description: Bus scanning interval, microseconds component.
control systems are attached/generate presence for as short as
100 ms - hence the tens-to-hundreds milliseconds scan intervals
are required.
see Documentation/w1/w1-generic.rst for detailed information.
see Documentation/w1/w1.generic for detailed information.
Users: any user space application which wants to know bus scanning
interval

View File

@@ -4,7 +4,6 @@ KernelVersion: 2.6.12
Contact: Richard Purdie <rpurdie@rpsys.net>
Description:
Control BACKLIGHT power, values are FB_BLANK_* from fb.h
- FB_BLANK_UNBLANK (0) : power on.
- FB_BLANK_POWERDOWN (4) : power off
Users: HAL

View File

@@ -8,14 +8,12 @@ Date: Apr, 2005
KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===========================================
node_type: (RO) Node type (CA, RNIC, usNIC, usNIC UDP,
switch or router)
node_guid: (RO) Node GUID
sys_image_guid: (RO) System image GUID
=============== ===========================================
What: /sys/class/infiniband/<device>/node_desc
@@ -49,7 +47,6 @@ KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===============================================
lid: (RO) Port LID
rate: (RO) Port data rate (active width * active
@@ -69,9 +66,8 @@ Description:
cap_mask: (RO) Port capability mask. 2 bits here are
settable- IsCommunicationManagementSupported
(set when CM module is loaded) and IsSM (set
via open of issmN file).
=============== ===============================================
(set when CM module is loaded) and IsSM (set via
open of issmN file).
What: /sys/class/infiniband/<device>/ports/<port-num>/link_layer
@@ -107,7 +103,8 @@ Date: Apr, 2005
KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
**Errors info**:
Errors info:
-----------
symbol_error: (RO) Total number of minor link errors detected on
one or more physical lanes.
@@ -145,7 +142,8 @@ Description:
intervention. It can also indicate hardware issues or extremely
poor link signal integrity
**Data info**:
Data info:
---------
port_xmit_data: (RO) Total number of data octets, divided by 4
(lanes), transmitted on all VLs. This is 64 bit counter
@@ -178,7 +176,8 @@ Description:
transmitted on all VLs from the port. This may include multicast
packets with errors.
**Misc info**:
Misc info:
---------
port_xmit_discards: (RO) Total number of outbound packets
discarded by the port because the port is down or congested.
@@ -245,11 +244,9 @@ Description:
two umad devices and two issm devices, while a switch will have
one device of each type (for switch port 0).
======= =====================================
ibdev: (RO) Show Infiniband (IB) device name
port: (RO) Display port number
======= =====================================
What: /sys/class/infiniband_mad/abi_version
@@ -261,18 +258,33 @@ Description:
userspace ABI compatibility of umad & issm devices.
What: /sys/class/infiniband_cm/ucmN/ibdev
Date: Oct, 2005
KernelVersion: v2.6.14
Contact: linux-rdma@vger.kernel.org
Description:
(RO) Display Infiniband (IB) device name
What: /sys/class/infiniband_cm/abi_version
Date: Oct, 2005
KernelVersion: v2.6.14
Contact: linux-rdma@vger.kernel.org
Description:
(RO) Value is incremented if any changes are made that break
userspace ABI compatibility of ucm devices.
What: /sys/class/infiniband_verbs/uverbsN/ibdev
What: /sys/class/infiniband_verbs/uverbsN/abi_version
Date: Sept, 2005
KernelVersion: v2.6.14
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===========================================
ibdev: (RO) Display Infiniband (IB) device name
abi_version: (RO) Show ABI version of IB device specific
interfaces.
=============== ===========================================
What: /sys/class/infiniband_verbs/abi_version
@@ -294,14 +306,31 @@ Date: Apr, 2005
KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
=============== ================================================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Host Channel Adapter type: MT23108, MT25208
(MT23108 compat mode), MT25208 or MT25204
board_id: (RO) Manufacturing board ID
=============== ================================================
sysfs interface for Chelsio T3 RDMA Driver (cxgb3)
--------------------------------------------------
What: /sys/class/infiniband/cxgb3_X/hw_rev
What: /sys/class/infiniband/cxgb3_X/hca_type
What: /sys/class/infiniband/cxgb3_X/board_id
Date: Feb, 2007
KernelVersion: v2.6.21
Contact: linux-rdma@vger.kernel.org
Description:
hw_rev: (RO) Hardware revision number
hca_type: (RO) HCA type. Here it is a driver short name.
It should normally match the name in its bus
driver structure (e.g. pci_driver::name).
board_id: (RO) Manufacturing board id
sysfs interface for Mellanox ConnectX HCA IB driver (mlx4)
@@ -314,13 +343,11 @@ Date: Sep, 2007
KernelVersion: v2.6.24
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===============================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Host channel adapter type
board_id: (RO) Manufacturing board ID
=============== ===============================
What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/gids/<n>
@@ -346,7 +373,6 @@ Description:
example, ports/1/pkeys/10 contains the value at index 10 in port
1's P_Key table.
======================= ==========================================
gids/<n>: (RO) The physical port gids n = 0..127
admin_guids/<n>: (RW) Allows examining or changing the
@@ -375,7 +401,6 @@ Description:
guest, whenever it uses its pkey index
1, will actually be using the real pkey
index 10.
======================= ==========================================
What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/smi_enabled
@@ -387,14 +412,12 @@ Description:
Enabling QP0 on VFs for selected VF/port. By default, no VFs are
enabled for QP0 operation.
================= ==== ===========================================
smi_enabled: (RO) Indicates whether smi is currently enabled
for the indicated VF/port
smi_enabled: (RO) Indicates whether smi is currently enabled
for the indicated VF/port
enable_smi_admin: (RW) Used by the admin to request that smi
capability be enabled or disabled for the
indicated VF/port. 0 = disable, 1 = enable.
================= ==== ===========================================
enable_smi_admin:(RW) Used by the admin to request that smi
capability be enabled or disabled for the
indicated VF/port. 0 = disable, 1 = enable.
The requested enablement will occur at the next reset of the VF
(e.g. driver restart on the VM which owns the VF).
@@ -411,7 +434,6 @@ KernelVersion: v2.6.35
Contact: linux-rdma@vger.kernel.org
Description:
=============== =============================================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Driver short name. Should normally match
@@ -420,7 +442,6 @@ Description:
board_id: (RO) Manufacturing board id. (Vendor + device
information)
=============== =============================================
sysfs interface for Intel IB driver qib
@@ -441,7 +462,6 @@ Date: May, 2010
KernelVersion: v2.6.35
Contact: linux-rdma@vger.kernel.org
Description:
=============== ======================================================
version: (RO) Display version information of installed software
and drivers.
@@ -468,7 +488,6 @@ Description:
chip_reset: (WO) Reset the chip if possible by writing
"reset" to this file. Only allowed if no user
contexts are open that use chip resources.
=============== ======================================================
What: /sys/class/infiniband/qibX/ports/N/sl2vl/[0-15]
@@ -488,16 +507,14 @@ Contact: linux-rdma@vger.kernel.org
Description:
Per-port congestion control. Both are binary attributes.
=============== ================================================
cc_table_bin (RO) Congestion control table size followed by
cc_table_bin: (RO) Congestion control table size followed by
table entries.
cc_settings_bin (RO) Congestion settings: port control, control
cc_settings_bin:(RO) Congestion settings: port control, control
map and an array of 16 entries for the
congestion entries - increase, timer, event log
trigger threshold and the minimum injection rate
delay.
=============== ================================================
What: /sys/class/infiniband/qibX/ports/N/linkstate/loopback
What: /sys/class/infiniband/qibX/ports/N/linkstate/led_override
@@ -510,7 +527,6 @@ Contact: linux-rdma@vger.kernel.org
Description:
[to be documented]
=============== ===============================================
loopback: (WO)
led_override: (WO)
hrtbt_enable: (RW)
@@ -521,7 +537,6 @@ Description:
errors. Possible states are- "Initted",
"Present", "IB_link_up", "IB_configured" or
"Fatal_Hardware_Error".
=============== ===============================================
What: /sys/class/infiniband/qibX/ports/N/diag_counters/rc_resends
What: /sys/class/infiniband/qibX/ports/N/diag_counters/seq_naks
@@ -570,7 +585,6 @@ Contact: Christian Benvenuti <benve@cisco.com>,
linux-rdma@vger.kernel.org
Description:
=============== ===============================================
board_id: (RO) Manufacturing board id
config: (RO) Report the configuration for this PF
@@ -583,7 +597,6 @@ Description:
iface: (RO) Shows which network interface this usNIC
entry is associated to (visible with ifconfig).
=============== ===============================================
What: /sys/class/infiniband/usnic_X/qpn/summary
What: /sys/class/infiniband/usnic_X/qpn/context
@@ -628,7 +641,6 @@ Date: May, 2016
KernelVersion: v4.6
Contact: linux-rdma@vger.kernel.org
Description:
=============== =============================================
hw_rev: (RO) Hardware revision number
board_id: (RO) Manufacturing board id
@@ -647,7 +659,6 @@ Description:
available.
tempsense: (RO) Thermal sense information
=============== =============================================
What: /sys/class/infiniband/hfi1_X/ports/N/CCMgtA/cc_settings_bin
@@ -659,21 +670,19 @@ Contact: linux-rdma@vger.kernel.org
Description:
Per-port congestion control.
=============== ================================================
cc_table_bin (RO) CCA tables used by PSM2 Congestion control
cc_table_bin: (RO) CCA tables used by PSM2 Congestion control
table size followed by table entries. Binary
attribute.
cc_settings_bin (RO) Congestion settings: port control, control
cc_settings_bin:(RO) Congestion settings: port control, control
map and an array of 16 entries for the
congestion entries - increase, timer, event log
trigger threshold and the minimum injection rate
delay. Binary attribute.
cc_prescan (RW) enable prescanning for faster BECN
cc_prescan: (RW) enable prescanning for faster BECN
response. Write "on" to enable and "off" to
disable.
=============== ================================================
What: /sys/class/infiniband/hfi1_X/ports/N/sc2vl/[0-31]
What: /sys/class/infiniband/hfi1_X/ports/N/sl2sc/[0-31]
@@ -682,13 +691,11 @@ Date: May, 2016
KernelVersion: v4.6
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===================================================
sc2vl/: (RO) 32 files (0 - 31) used to translate sl->vl
sl2sc/: (RO) 32 files (0 - 31) used to translate sl->sc
vl2mtu/: (RO) 16 files (0 - 15) used to determine MTU for vl
=============== ===================================================
What: /sys/class/infiniband/hfi1_X/sdma_N/cpu_list
@@ -699,28 +706,26 @@ Contact: linux-rdma@vger.kernel.org
Description:
sdma<N>/ contains one directory per sdma engine (0 - 15)
=============== ==============================================
cpu_list: (RW) List of cpus for user-process to sdma
engine assignment.
vl: (RO) Displays the virtual lane (vl) the sdma
engine maps to.
=============== ==============================================
This interface gives the user control on the affinity settings
for the device. As an example, to set an sdma engine irq
affinity and thread affinity of a user processes to use the
sdma engine, which is "near" in terms of NUMA configuration, or
physical cpu location, the user will do::
physical cpu location, the user will do:
echo "3" > /proc/irq/<N>/smp_affinity_list
echo "4-7" > /sys/devices/.../sdma3/cpu_list
cat /sys/devices/.../sdma3/vl
0
echo "8" > /proc/irq/<M>/smp_affinity_list
echo "9-12" > /sys/devices/.../sdma4/cpu_list
cat /sys/devices/.../sdma4/vl
1
echo "3" > /proc/irq/<N>/smp_affinity_list
echo "4-7" > /sys/devices/.../sdma3/cpu_list
cat /sys/devices/.../sdma3/vl
0
echo "8" > /proc/irq/<M>/smp_affinity_list
echo "9-12" > /sys/devices/.../sdma4/cpu_list
cat /sys/devices/.../sdma4/vl
1
to make sure that when a process runs on cpus 4,5,6, or 7, and
uses vl=0, then sdma engine 3 is selected by the driver, and
@@ -742,13 +747,11 @@ Date: Jan, 2016
KernelVersion: v4.10
Contact: linux-rdma@vger.kernel.org
Description:
=============== ==== ========================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Show HCA type (I40IW)
board_id: (RO) I40IW board ID
=============== ==== ========================
sysfs interface for QLogic qedr NIC Driver
@@ -761,11 +764,9 @@ KernelVersion: v4.10
Contact: linux-rdma@vger.kernel.org
Description:
=============== ==== ========================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Display HCA type
=============== ==== ========================
sysfs interface for VMware Paravirtual RDMA driver
@@ -779,13 +780,11 @@ KernelVersion: v4.10
Contact: linux-rdma@vger.kernel.org
Description:
=============== ==== =====================================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Host channel adapter type
board_id: (RO) Display PVRDMA manufacturing board ID
=============== ==== =====================================
sysfs interface for Broadcom NetXtreme-E RoCE driver
@@ -797,8 +796,6 @@ Date: Feb, 2017
KernelVersion: v4.11
Contact: linux-rdma@vger.kernel.org
Description:
=============== ==== =========================
hw_rev: (RO) Hardware revision number
hca_type: (RO) Host channel adapter type
=============== ==== =========================

View File

@@ -2,7 +2,7 @@ rfkill - radio frequency (RF) connector kill switch support
For details to this subsystem look at Documentation/driver-api/rfkill.rst.
For the deprecated ``/sys/class/rfkill/*/claim`` knobs of this interface look in
For the deprecated /sys/class/rfkill/*/claim knobs of this interface look in
Documentation/ABI/removed/sysfs-class-rfkill.
What: /sys/class/rfkill
@@ -36,10 +36,9 @@ KernelVersion v2.6.22
Contact: linux-wireless@vger.kernel.org
Description: Whether the soft blocked state is initialised from non-volatile
storage at startup.
Values: A numeric value:
- 0: false
- 1: true
Values: A numeric value.
0: false
1: true
What: /sys/class/rfkill/rfkill[0-9]+/state
@@ -55,7 +54,6 @@ Description: Current state of the transmitter.
through this interface. There will likely be another attempt to
remove it in the future.
Values: A numeric value.
0: RFKILL_STATE_SOFT_BLOCKED
transmitter is turned off by software
1: RFKILL_STATE_UNBLOCKED
@@ -71,7 +69,6 @@ KernelVersion v2.6.34
Contact: linux-wireless@vger.kernel.org
Description: Current hardblock state. This file is read only.
Values: A numeric value.
0: inactive
The transmitter is (potentially) active.
1: active
@@ -85,9 +82,7 @@ KernelVersion v2.6.34
Contact: linux-wireless@vger.kernel.org
Description: Current softblock state. This file is read and write.
Values: A numeric value.
0: inactive
The transmitter is (potentially) active.
1: active
The transmitter is turned off by software.

View File

@@ -1,7 +1,7 @@
What: /sys/class/tpm/tpmX/device/
Date: April 2005
KernelVersion: 2.6.12
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The device/ directory under a specific TPM instance exposes
the properties of that TPM chip
@@ -9,7 +9,7 @@ Description: The device/ directory under a specific TPM instance exposes
What: /sys/class/tpm/tpmX/device/active
Date: April 2006
KernelVersion: 2.6.17
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "active" property prints a '1' if the TPM chip is accepting
commands. An inactive TPM chip still contains all the state of
an active chip (Storage Root Key, NVRAM, etc), and can be
@@ -21,7 +21,7 @@ Description: The "active" property prints a '1' if the TPM chip is accepting
What: /sys/class/tpm/tpmX/device/cancel
Date: June 2005
KernelVersion: 2.6.13
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "cancel" property allows you to cancel the currently
pending TPM command. Writing any value to cancel will call the
TPM vendor specific cancel operation.
@@ -29,14 +29,14 @@ Description: The "cancel" property allows you to cancel the currently
What: /sys/class/tpm/tpmX/device/caps
Date: April 2005
KernelVersion: 2.6.12
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "caps" property contains TPM manufacturer and version info.
Example output::
Example output:
Manufacturer: 0x53544d20
TCG version: 1.2
Firmware version: 8.16
Manufacturer: 0x53544d20
TCG version: 1.2
Firmware version: 8.16
Manufacturer is a hex dump of the 4 byte manufacturer info
space in a TPM. TCG version shows the TCG TPM spec level that
@@ -46,7 +46,7 @@ Description: The "caps" property contains TPM manufacturer and version info.
What: /sys/class/tpm/tpmX/device/durations
Date: March 2011
KernelVersion: 3.1
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "durations" property shows the 3 vendor-specific values
used to wait for a short, medium and long TPM command. All
TPM commands are categorized as short, medium or long in
@@ -54,9 +54,9 @@ Description: The "durations" property shows the 3 vendor-specific values
any longer than necessary before starting to poll for a
result.
Example output::
Example output:
3015000 4508000 180995000 [original]
3015000 4508000 180995000 [original]
Here the short, medium and long durations are displayed in
usecs. "[original]" indicates that the values are displayed
@@ -69,7 +69,7 @@ Description: The "durations" property shows the 3 vendor-specific values
What: /sys/class/tpm/tpmX/device/enabled
Date: April 2006
KernelVersion: 2.6.17
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "enabled" property prints a '1' if the TPM chip is enabled,
meaning that it should be visible to the OS. This property
may be visible but produce a '0' after some operation that
@@ -78,7 +78,7 @@ Description: The "enabled" property prints a '1' if the TPM chip is enabled,
What: /sys/class/tpm/tpmX/device/owned
Date: April 2006
KernelVersion: 2.6.17
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "owned" property produces a '1' if the TPM_TakeOwnership
ordinal has been executed successfully in the chip. A '0'
indicates that ownership hasn't been taken.
@@ -86,20 +86,20 @@ Description: The "owned" property produces a '1' if the TPM_TakeOwnership
What: /sys/class/tpm/tpmX/device/pcrs
Date: April 2005
KernelVersion: 2.6.12
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "pcrs" property will dump the current value of all Platform
Configuration Registers in the TPM. Note that since these
values may be constantly changing, the output is only valid
for a snapshot in time.
Example output::
Example output:
PCR-00: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-01: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-02: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-03: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-04: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
...
PCR-00: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-01: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-02: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-03: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
PCR-04: 3A 3F 78 0F 11 A4 B4 99 69 FC AA 80 CD 6E 39 57 C3 3B 22 75
...
The number of PCRs and hex bytes needed to represent a PCR
value will vary depending on TPM chip version. For TPM 1.1 and
@@ -109,7 +109,7 @@ Description: The "pcrs" property will dump the current value of all Platform
What: /sys/class/tpm/tpmX/device/pubek
Date: April 2005
KernelVersion: 2.6.12
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "pubek" property will return the TPM's public endorsement
key if possible. If the TPM has had ownership established and
is version 1.2, the pubek will not be available without the
@@ -119,49 +119,49 @@ Description: The "pubek" property will return the TPM's public endorsement
ated at TPM manufacture time and exists for the life of the
chip.
Example output::
Example output:
Algorithm: 00 00 00 01
Encscheme: 00 03
Sigscheme: 00 01
Parameters: 00 00 08 00 00 00 00 02 00 00 00 00
Modulus length: 256
Modulus:
B4 76 41 82 C9 20 2C 10 18 40 BC 8B E5 44 4C 6C
3A B2 92 0C A4 9B 2A 83 EB 5C 12 85 04 48 A0 B6
1E E4 81 84 CE B2 F2 45 1C F0 85 99 61 02 4D EB
86 C4 F7 F3 29 60 52 93 6B B2 E5 AB 8B A9 09 E3
D7 0E 7D CA 41 BF 43 07 65 86 3C 8C 13 7A D0 8B
82 5E 96 0B F8 1F 5F 34 06 DA A2 52 C1 A9 D5 26
0F F4 04 4B D9 3F 2D F2 AC 2F 74 64 1F 8B CD 3E
1E 30 38 6C 70 63 69 AB E2 50 DF 49 05 2E E1 8D
6F 78 44 DA 57 43 69 EE 76 6C 38 8A E9 8E A3 F0
A7 1F 3C A8 D0 12 15 3E CA 0E BD FA 24 CD 33 C6
47 AE A4 18 83 8E 22 39 75 93 86 E6 FD 66 48 B6
10 AD 94 14 65 F9 6A 17 78 BD 16 53 84 30 BF 70
E0 DC 65 FD 3C C6 B0 1E BF B9 C1 B5 6C EF B1 3A
F8 28 05 83 62 26 11 DC B4 6B 5A 97 FF 32 26 B6
F7 02 71 CF 15 AE 16 DD D1 C1 8E A8 CF 9B 50 7B
C3 91 FF 44 1E CF 7C 39 FE 17 77 21 20 BD CE 9B
Algorithm: 00 00 00 01
Encscheme: 00 03
Sigscheme: 00 01
Parameters: 00 00 08 00 00 00 00 02 00 00 00 00
Modulus length: 256
Modulus:
B4 76 41 82 C9 20 2C 10 18 40 BC 8B E5 44 4C 6C
3A B2 92 0C A4 9B 2A 83 EB 5C 12 85 04 48 A0 B6
1E E4 81 84 CE B2 F2 45 1C F0 85 99 61 02 4D EB
86 C4 F7 F3 29 60 52 93 6B B2 E5 AB 8B A9 09 E3
D7 0E 7D CA 41 BF 43 07 65 86 3C 8C 13 7A D0 8B
82 5E 96 0B F8 1F 5F 34 06 DA A2 52 C1 A9 D5 26
0F F4 04 4B D9 3F 2D F2 AC 2F 74 64 1F 8B CD 3E
1E 30 38 6C 70 63 69 AB E2 50 DF 49 05 2E E1 8D
6F 78 44 DA 57 43 69 EE 76 6C 38 8A E9 8E A3 F0
A7 1F 3C A8 D0 12 15 3E CA 0E BD FA 24 CD 33 C6
47 AE A4 18 83 8E 22 39 75 93 86 E6 FD 66 48 B6
10 AD 94 14 65 F9 6A 17 78 BD 16 53 84 30 BF 70
E0 DC 65 FD 3C C6 B0 1E BF B9 C1 B5 6C EF B1 3A
F8 28 05 83 62 26 11 DC B4 6B 5A 97 FF 32 26 B6
F7 02 71 CF 15 AE 16 DD D1 C1 8E A8 CF 9B 50 7B
C3 91 FF 44 1E CF 7C 39 FE 17 77 21 20 BD CE 9B
Possible values::
Possible values:
Algorithm: TPM_ALG_RSA (1)
Encscheme: TPM_ES_RSAESPKCSv15 (2)
Algorithm: TPM_ALG_RSA (1)
Encscheme: TPM_ES_RSAESPKCSv15 (2)
TPM_ES_RSAESOAEP_SHA1_MGF1 (3)
Sigscheme: TPM_SS_NONE (1)
Parameters, a byte string of 3 u32 values:
Sigscheme: TPM_SS_NONE (1)
Parameters, a byte string of 3 u32 values:
Key Length (bits): 00 00 08 00 (2048)
Num primes: 00 00 00 02 (2)
Exponent Size: 00 00 00 00 (0 means the
default exp)
Modulus Length: 256 (bytes)
Modulus: The 256 byte Endorsement Key modulus
Modulus Length: 256 (bytes)
Modulus: The 256 byte Endorsement Key modulus
What: /sys/class/tpm/tpmX/device/temp_deactivated
Date: April 2006
KernelVersion: 2.6.17
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "temp_deactivated" property returns a '1' if the chip has
been temporarily deactivated, usually until the next power
cycle. Whether a warm boot (reboot) will clear a TPM chip
@@ -170,27 +170,16 @@ Description: The "temp_deactivated" property returns a '1' if the chip has
What: /sys/class/tpm/tpmX/device/timeouts
Date: March 2011
KernelVersion: 3.1
Contact: linux-integrity@vger.kernel.org
Contact: tpmdd-devel@lists.sf.net
Description: The "timeouts" property shows the 4 vendor-specific values
for the TPM's interface spec timeouts. The use of these
timeouts is defined by the TPM interface spec that the chip
conforms to.
Example output::
Example output:
750000 750000 750000 750000 [original]
750000 750000 750000 750000 [original]
The four timeout values are shown in usecs, with a trailing
"[original]" or "[adjusted]" depending on whether the values
were scaled by the driver to be reported in usec from msecs.
What: /sys/class/tpm/tpmX/tpm_version_major
Date: October 2019
KernelVersion: 5.5
Contact: linux-integrity@vger.kernel.org
Description: The "tpm_version_major" property shows the TCG spec major version
implemented by the TPM device.
Example output::
2

View File

@@ -1,6 +1,5 @@
Note:
This documents additional properties of any device beyond what
is documented in Documentation/admin-guide/sysfs-rules.rst
# Note: This documents additional properties of any device beyond what
# is documented in Documentation/admin-guide/sysfs-rules.rst
What: /sys/devices/*/of_node
Date: February 2015

View File

@@ -54,7 +54,7 @@ Date: October 2002
Contact: Linux Memory Management list <linux-mm@kvack.org>
Description:
Provides information about the node's distribution and memory
utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.rst
utilization. Similar to /proc/meminfo, see Documentation/filesystems/proc.txt
What: /sys/devices/system/node/nodeX/numastat
Date: October 2002

View File

@@ -6,19 +6,10 @@ Description: Configures which IO port the host side of the UART
Users: OpenBMC. Proposed changes should be mailed to
openbmc@lists.ozlabs.org
What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq
What: /sys/bus/platform/drivers/aspeed-vuart*/sirq
Date: April 2017
Contact: Jeremy Kerr <jk@ozlabs.org>
Description: Configures which interrupt number the host side of
the UART will appear on the host <-> BMC LPC bus.
Users: OpenBMC. Proposed changes should be mailed to
openbmc@lists.ozlabs.org
What: /sys/bus/platform/drivers/aspeed-vuart/*/sirq_polarity
Date: July 2019
Contact: Oskar Senft <osk@google.com>
Description: Configures the polarity of the serial interrupt to the
host via the BMC LPC bus.
Set to 0 for active-low or 1 for active-high.
Users: OpenBMC. Proposed changes should be mailed to
openbmc@lists.ozlabs.org

View File

@@ -1,197 +0,0 @@
What: /sys/bus/dsa/devices/dsa<m>/version
Date: Apr 15, 2020
KernelVersion: 5.8.0
Contact: dmaengine@vger.kernel.org
Description: The hardware version number.
What: /sys/bus/dsa/devices/dsa<m>/cdev_major
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The major number that the character device driver assigned to
this device.
What: /sys/bus/dsa/devices/dsa<m>/errors
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The error information for this device.
What: /sys/bus/dsa/devices/dsa<m>/max_batch_size
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The largest number of work descriptors in a batch.
What: /sys/bus/dsa/devices/dsa<m>/max_work_queues_size
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The maximum work queue size supported by this device.
What: /sys/bus/dsa/devices/dsa<m>/max_engines
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The maximum number of engines supported by this device.
What: /sys/bus/dsa/devices/dsa<m>/max_groups
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The maximum number of groups can be created under this device.
What: /sys/bus/dsa/devices/dsa<m>/max_tokens
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The total number of bandwidth tokens supported by this device.
The bandwidth tokens represent resources within the DSA
implementation, and these resources are allocated by engines to
support operations.
What: /sys/bus/dsa/devices/dsa<m>/max_transfer_size
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The number of bytes to be read from the source address to
perform the operation. The maximum transfer size is dependent on
the workqueue the descriptor was submitted to.
What: /sys/bus/dsa/devices/dsa<m>/max_work_queues
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The maximum work queue number that this device supports.
What: /sys/bus/dsa/devices/dsa<m>/numa_node
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The numa node number for this device.
What: /sys/bus/dsa/devices/dsa<m>/op_cap
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The operation capability bit mask specify the operation types
supported by the this device.
What: /sys/bus/dsa/devices/dsa<m>/state
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The state information of this device. It can be either enabled
or disabled.
What: /sys/bus/dsa/devices/dsa<m>/group<m>.<n>
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The assigned group under this device.
What: /sys/bus/dsa/devices/dsa<m>/engine<m>.<n>
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The assigned engine under this device.
What: /sys/bus/dsa/devices/dsa<m>/wq<m>.<n>
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The assigned work queue under this device.
What: /sys/bus/dsa/devices/dsa<m>/configurable
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: To indicate if this device is configurable or not.
What: /sys/bus/dsa/devices/dsa<m>/token_limit
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The maximum number of bandwidth tokens that may be in use at
one time by operations that access low bandwidth memory in the
device.
What: /sys/bus/dsa/devices/dsa<m>/cmd_status
Date: Aug 28, 2020
KernelVersion: 5.10.0
Contact: dmaengine@vger.kernel.org
Description: The last executed device administrative command's status/error.
What: /sys/bus/dsa/devices/wq<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The group id that this work queue belongs to.
What: /sys/bus/dsa/devices/wq<m>.<n>/size
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The work queue size for this work queue.
What: /sys/bus/dsa/devices/wq<m>.<n>/type
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The type of this work queue, it can be "kernel" type for work
queue usages in the kernel space or "user" type for work queue
usages by applications in user space.
What: /sys/bus/dsa/devices/wq<m>.<n>/cdev_minor
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The minor number assigned to this work queue by the character
device driver.
What: /sys/bus/dsa/devices/wq<m>.<n>/mode
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The work queue mode type for this work queue.
What: /sys/bus/dsa/devices/wq<m>.<n>/priority
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The priority value of this work queue, it is a vlue relative to
other work queue in the same group to control quality of service
for dispatching work from multiple workqueues in the same group.
What: /sys/bus/dsa/devices/wq<m>.<n>/state
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The current state of the work queue.
What: /sys/bus/dsa/devices/wq<m>.<n>/threshold
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The number of entries in this work queue that may be filled
via a limited portal.
What: /sys/bus/dsa/devices/wq<m>.<n>/max_transfer_size
Date: Aug 28, 2020
KernelVersion: 5.10.0
Contact: dmaengine@vger.kernel.org
Description: The max transfer sized for this workqueue. Cannot exceed device
max transfer size. Configurable parameter.
What: /sys/bus/dsa/devices/wq<m>.<n>/max_batch_size
Date: Aug 28, 2020
KernelVersion: 5.10.0
Contact: dmaengine@vger.kernel.org
Description: The max batch size for this workqueue. Cannot exceed device
max batch size. Configurable parameter.
What: /sys/bus/dsa/devices/engine<m>.<n>/group_id
Date: Oct 25, 2019
KernelVersion: 5.6.0
Contact: dmaengine@vger.kernel.org
Description: The group that this engine belongs to.

View File

@@ -1,29 +1,29 @@
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/cap
Date: December 3, 2009
KernelVersion: 2.6.32
Contact: dmaengine@vger.kernel.org
Description: Capabilities the DMA supports.Currently there are DMA_PQ, DMA_PQ_VAL,
DMA_XOR,DMA_XOR_VAL,DMA_INTERRUPT.
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_active
Date: December 3, 2009
KernelVersion: 2.6.32
Contact: dmaengine@vger.kernel.org
Description: The number of descriptors active in the ring.
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/ring_size
Date: December 3, 2009
KernelVersion: 2.6.32
Contact: dmaengine@vger.kernel.org
Description: Descriptor ring size, total number of descriptors available.
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/version
Date: December 3, 2009
KernelVersion: 2.6.32
Contact: dmaengine@vger.kernel.org
Description: Version of ioatdma device.
What: /sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
What: sys/devices/pciXXXX:XX/0000:XX:XX.X/dma/dma<n>chan<n>/quickdata/intr_coalesce
Date: August 8, 2017
KernelVersion: 4.14
Contact: dmaengine@vger.kernel.org

View File

@@ -1,115 +0,0 @@
What: /sys/devices/platform/firmware\:zynqmp-firmware/ggs*
Date: March 2020
KernelVersion: 5.6
Contact: "Jolly Shah" <jollys@xilinx.com>
Description:
Read/Write PMU global general storage register value,
GLOBAL_GEN_STORAGE{0:3}.
Global general storage register that can be used
by system to pass information between masters.
The register is reset during system or power-on
resets. Three registers are used by the FSBL and
other Xilinx software products: GLOBAL_GEN_STORAGE{4:6}.
Usage::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
# echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
Example::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
# echo 0x1234ABCD > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
Users: Xilinx
What: /sys/devices/platform/firmware\:zynqmp-firmware/pggs*
Date: March 2020
KernelVersion: 5.6
Contact: "Jolly Shah" <jollys@xilinx.com>
Description:
Read/Write PMU persistent global general storage register
value, PERS_GLOB_GEN_STORAGE{0:3}.
Persistent global general storage register that
can be used by system to pass information between
masters.
This register is only reset by the power-on reset
and maintains its value through a system reset.
Four registers are used by the FSBL and other Xilinx
software products: PERS_GLOB_GEN_STORAGE{4:7}.
Register is reset only by a POR reset.
Usage::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
# echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
Example::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
# echo 0x1234ABCD > /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
Users: Xilinx
What: /sys/devices/platform/firmware\:zynqmp-firmware/shutdown_scope
Date: March 2020
KernelVersion: 5.6
Contact: "Jolly Shah" <jollys@xilinx.com>
Description:
This sysfs interface allows to set the shutdown scope for the
next shutdown request. When the next shutdown is performed, the
platform specific portion of PSCI-system_off can use the chosen
shutdown scope.
Following are available shutdown scopes(subtypes):
subsystem:
Only the APU along with all of its peripherals
not used by other processing units will be
shut down. This may result in the FPD power
domain being shut down provided that no other
processing unit uses FPD peripherals or DRAM.
ps_only:
The complete PS will be shut down, including the
RPU, PMU, etc. Only the PL domain (FPGA)
remains untouched.
system:
The complete system/device is shut down.
Usage::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/shutdown_scope
# echo <scope> > /sys/devices/platform/firmware\:zynqmp-firmware/shutdown_scope
Example::
# cat /sys/devices/platform/firmware\:zynqmp-firmware/shutdown_scope
# echo "subsystem" > /sys/devices/platform/firmware\:zynqmp-firmware/shutdown_scope
Users: Xilinx
What: /sys/devices/platform/firmware\:zynqmp-firmware/health_status
Date: March 2020
KernelVersion: 5.6
Contact: "Jolly Shah" <jollys@xilinx.com>
Description:
This sysfs interface allows to set the health status. If PMUFW
is compiled with CHECK_HEALTHY_BOOT, it will check the healthy
bit on FPD WDT expiration. If healthy bit is set by a user
application running in Linux, PMUFW will do APU only restart. If
healthy bit is not set during FPD WDT expiration, PMUFW will do
system restart.
Usage:
Set healthy bit::
# echo 1 > /sys/devices/platform/firmware\:zynqmp-firmware/health_status
Unset healthy bit::
# echo 0 > /sys/devices/platform/firmware\:zynqmp-firmware/health_status
Users: Xilinx

View File

@@ -6,7 +6,6 @@ Description: Interface for making ib_srp connect to a new target.
One can request ib_srp to connect to a new target by writing
a comma-separated list of login parameters to this sysfs
attribute. The supported parameters are:
* id_ext, a 16-digit hexadecimal number specifying the eight
byte identifier extension in the 16-byte SRP target port
identifier. The target port identifier is sent by ib_srp
@@ -68,8 +67,6 @@ Description: Interface for making ib_srp connect to a new target.
initiator is allowed to queue per SCSI host. The default
value for this parameter is 62. The lowest supported value
is 2.
* max_it_iu_size, a decimal number specifying the maximum
initiator to target information unit length.
What: /sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
Date: January 2, 2006

View File

@@ -1,4 +1,5 @@
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/asic_health
Date: June 2018
KernelVersion: 4.19
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -18,6 +19,7 @@ Description: These files show with which CPLD versions have been burned
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/fan_dir
Date: December 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -27,16 +29,18 @@ Description: This file shows the system fans direction:
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
on LED or Gearbox board.
on LED board.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/jtag_enable
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -104,6 +108,7 @@ What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_pwr_fail
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_comex
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_system
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_voltmon_upgrade_fail
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -116,21 +121,6 @@ Description: These files show the system reset cause, as following: ComEx
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version
Date: November 2018
KernelVersion: 5.0
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD versions have been burned
on LED board.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd
Date: June 2019
KernelVersion: 5.3
Contact: Vadim Pasternak <vadimpmellanox.com>
@@ -144,82 +134,9 @@ Description: These files show the system reset cause, as following:
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config1
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/config2
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show system static topology identification
like system's static I2C topology, number and type of FPGA
devices within the system and so on.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_ac_pwr_fail
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_platform
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_soc
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sw_pwr_off
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show the system reset causes, as following: reset
due to AC power failure, reset invoked from software by
assertion reset signal through CPLD. reset caused by signal
asserted by SOC through ACPI register, reset invoked from
software by assertion power off signal through CPLD.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/pcie_asic_reset_dis
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file allows to retain ASIC up during PCIe root complex
reset, when attribute is set 1.
The file is read/write.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/vpd_wp
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file allows to overwrite system VPD hardware wrtie
protection when attribute is set 1.
The file is read/write.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/voltreg_update_status
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file exposes the configuration update status of burnable
voltage regulator devices. The status values are as following:
0 - OK; 1 - CRC failure; 2 = I2C failure; 3 - in progress.
The file is read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/ufm_version
Date: January 2020
KernelVersion: 5.6
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: This file exposes the firmware version of burnable voltage
regulator devices.
The file is read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_pn
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_pn
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_pn
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_pn
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld1_version_min
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld2_version_min
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld3_version_min
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/cpld4_version_min
Date: July 2020
KernelVersion: 5.9
Contact: Vadim Pasternak <vadimpmellanox.com>
Description: These files show with which CPLD part numbers and minor
versions have been burned CPLD devices equipped on a
system.
The files are read only.
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_thermal
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_comex_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_from_asic
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_reload_bios
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_sff_wd
What: /sys/devices/platform/mlxplat/mlxreg-io/hwmon/hwmon*/reset_swb_wd

View File

@@ -1,379 +0,0 @@
What: /sys/accessibility/speakup/attrib_bleep
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Beeps the PC speaker when there is an attribute change such as
foreground or background color when using speakup review
commands. One = on, zero = off.
What: /sys/accessibility/speakup/bell_pos
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This works much like a typewriter bell. If for example 72 is
echoed to bell_pos, it will beep the PC speaker when typing on
a line past character 72.
What: /sys/accessibility/speakup/bleeps
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This controls whether one hears beeps through the PC speaker
when using speakup's review commands.
TODO: what values does it accept?
What: /sys/accessibility/speakup/bleep_time
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This controls the duration of the PC speaker beeps speakup
produces.
TODO: What are the units? Jiffies?
What: /sys/accessibility/speakup/cursor_time
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This controls cursor delay when using arrow keys. When a
connection is very slow, with the default setting, when moving
with the arrows, or backspacing etc. speakup says the incorrect
characters. Set this to a higher value to adjust for the delay
and better synchronisation between cursor position and speech.
What: /sys/accessibility/speakup/delimiters
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Delimit a word from speakup.
TODO: add more info
What: /sys/accessibility/speakup/ex_num
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/key_echo
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Controls if speakup speaks keys when they are typed. One = on,
zero = off or don't echo keys.
What: /sys/accessibility/speakup/keymap
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Speakup keymap remaps keys to Speakup functions.
It uses a binary
format. A special program called genmap is needed to compile a
textual keymap into the binary format which is then loaded into
/sys/accessibility/speakup/keymap.
What: /sys/accessibility/speakup/no_interrupt
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Controls if typing interrupts output from speakup. With
no_interrupt set to zero, typing on the keyboard will interrupt
speakup if for example
the say screen command is used before the
entire screen is read.
With no_interrupt set to one, if the say
screen command is used, and one then types on the keyboard,
speakup will continue to say the whole screen regardless until
it finishes.
What: /sys/accessibility/speakup/punc_all
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This is a list of all the punctuation speakup should speak when
punc_level is set to four.
What: /sys/accessibility/speakup/punc_level
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Controls the level of punctuation spoken as the screen is
displayed, not reviewed. Levels range from zero no punctuation,
to four, all punctuation. One corresponds to punc_some, two
corresponds to punc_most, and three as well as four both
correspond to punc_all. Some hardware synthesizers may have
different levels each corresponding to three and four for
punc_level. Also note that if punc_level is set to zero, and
key_echo is set to one, typed punctuation is still spoken as it
is typed.
What: /sys/accessibility/speakup/punc_most
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This is a list of all the punctuation speakup should speak when
punc_level is set to two.
What: /sys/accessibility/speakup/punc_some
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This is a list of all the punctuation speakup should speak when
punc_level is set to one.
What: /sys/accessibility/speakup/reading_punc
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Almost the same as punc_level, the differences being that
reading_punc controls the level of punctuation when reviewing
the screen with speakup's screen review commands. The other
difference is that reading_punc set to three speaks punc_all,
and reading_punc set to four speaks all punctuation, including
spaces.
What: /sys/accessibility/speakup/repeats
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: A list of characters speakup repeats. Normally, when there are
more than three characters in a row, speakup
just reads three of
those characters. For example, "......" would be read as dot,
dot, dot. If a . is added to the list of characters in repeats,
"......" would be read as dot, dot, dot, times six.
What: /sys/accessibility/speakup/say_control
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: If set to one, speakup speaks shift, alt and control when those
keys are pressed. If say_control is set to zero, shift, ctrl,
and alt are not spoken when they are pressed.
What: /sys/accessibility/speakup/say_word_ctl
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/silent
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/spell_delay
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This controls how fast a word is spelled
when speakup's say word
review command is pressed twice quickly to speak the current
word being reviewed. Zero just speaks the letters one after
another, while values one through four
seem to introduce more of
a pause between the spelling of each letter by speakup.
What: /sys/accessibility/speakup/synth
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the synthesizer driver currently in use. Reading
synth returns the synthesizer driver currently in use. Writing
synth switches to the given synthesizer driver, provided it is
either built into the kernel, or already loaded as a module.
What: /sys/accessibility/speakup/synth_direct
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Sends whatever is written to synth_direct
directly to the speech synthesizer in use, bypassing speakup.
This could be used to make the synthesizer speak
a string, or to
send control sequences to the synthesizer to change how the
synthesizer behaves.
What: /sys/accessibility/speakup/version
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Reading version returns the version of speakup, and the version
of the synthesizer driver currently in use.
What: /sys/accessibility/speakup/i18n/announcements
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This file contains various general announcements, most of which
cannot be categorized. You will find messages such as "You
killed Speakup", "I'm alive", "leaving help", "parked",
"unparked", and others. You will also find the names of the
screen edges and cursor tracking modes here.
What: /sys/accessibility/speakup/i18n/chartab
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO
What: /sys/accessibility/speakup/i18n/ctl_keys
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Here, you will find names of control keys. These are used with
Speakup's say_control feature.
What: /sys/accessibility/speakup/i18n/function_names
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Here, you will find a list of names for Speakup functions.
These are used by the help system. For example, suppose that
you have activated help mode, and you pressed
keypad 3. Speakup
says: "keypad 3 is character, say next."
The message "character, say next" names a Speakup function, and
it comes from this function_names file.
What: /sys/accessibility/speakup/i18n/states
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This file contains names for key states.
Again, these are part of the help system. For instance, if you
had pressed speakup + keypad 3, you would hear:
"speakup keypad 3 is go to bottom edge."
The speakup key is depressed, so the name of the key state is
speakup.
This part of the message comes from the states collection.
What: /sys/accessibility/speakup/i18n/characters
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Through this sys entry, Speakup gives you the ability to change
how Speakup pronounces a given character. You could, for
example, change how some punctuation characters are spoken. You
can even change how Speakup will pronounce certain letters. For
further details see '12. Changing the Pronunciation of
Characters' in Speakup User's Guide (file spkguide.txt in
source).
What: /sys/accessibility/speakup/i18n/colors
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: When you use the "say attributes" function, Speakup says the
name of the foreground and background colors. These names come
from the i18n/colors file.
What: /sys/accessibility/speakup/i18n/formatted
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This group of messages contains embedded formatting codes, to
specify the type and width of displayed data. If you change
these, you must preserve all of the formatting codes, and they
must appear in the order used by the default messages.
What: /sys/accessibility/speakup/i18n/key_names
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Again, key_names is used by Speakup's help system. In the
previous example, Speakup said that you pressed "keypad 3."
This name came from the key_names file.
What: /sys/accessibility/speakup/<synth-name>/
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: In `/sys/accessibility/speakup` is a directory corresponding to
the synthesizer driver currently in use (E.G) `soft` for the
soft driver. This directory contains files which control the
speech synthesizer itself,
as opposed to controlling the speakup
screen reader. The parameters in this directory have the same
names and functions across all
supported synthesizers. The range
of values for freq, pitch, rate, and vol is the same for all
supported synthesizers, with the given range being internally
mapped by the driver to more or less fit the range of values
supported for a given parameter by the individual synthesizer.
Below is a description of values and parameters for soft
synthesizer, which is currently the most commonly used.
What: /sys/accessibility/speakup/soft/caps_start
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This is the string that is sent to the synthesizer to cause it
to start speaking uppercase letters. For the soft synthesizer
and most others, this causes the pitch of the voice to rise
above the currently set pitch.
What: /sys/accessibility/speakup/soft/caps_stop
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This is the string sent to the synthesizer to cause it to stop
speaking uppercase letters. In the case of the soft synthesizer
and most others, this returns the pitch of the voice
down to the
currently set pitch.
What: /sys/accessibility/speakup/soft/delay_time
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/soft/direct
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Controls if punctuation is spoken by speakup, or by the
synthesizer.
For example, speakup speaks ">" as "greater", while
the espeak synthesizer used by the soft driver speaks "greater
than". Zero lets speakup speak the punctuation. One lets the
synthesizer itself speak punctuation.
What: /sys/accessibility/speakup/soft/freq
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the frequency of the speech synthesizer. Range is
0-9.
What: /sys/accessibility/speakup/soft/full_time
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/soft/jiffy_delta
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: This controls how many jiffys the kernel gives to the
synthesizer. Setting this too high can make a system unstable,
or even crash it.
What: /sys/accessibility/speakup/soft/pitch
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the pitch of the synthesizer. The range is 0-9.
What: /sys/accessibility/speakup/soft/inflection
KernelVersion: 5.8
Contact: speakup@linux-speakup.org
Description: Gets or sets the inflection of the synthesizer, i.e. the pitch
range. The range is 0-9.
What: /sys/accessibility/speakup/soft/punct
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the amount of punctuation spoken by the
synthesizer. The range for the soft driver seems to be 0-2.
TODO: How is this related to speakup's punc_level, or
reading_punc.
What: /sys/accessibility/speakup/soft/rate
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the rate of the synthesizer. Range is from zero
slowest, to nine fastest.
What: /sys/accessibility/speakup/soft/tone
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the tone of the speech synthesizer. The range for
the soft driver seems to be 0-2. This seems to make no
difference if using espeak and the espeakup connector.
TODO: does espeakup support different tonalities?
What: /sys/accessibility/speakup/soft/trigger_time
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: TODO:
What: /sys/accessibility/speakup/soft/voice
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the voice used by the synthesizer if the
synthesizer can speak in more than one voice. The range for the
soft driver is 0-7. Note that while espeak supports multiple
voices, this parameter will not set the voice when the espeakup
connector is used between speakup and espeak.
What: /sys/accessibility/speakup/soft/vol
KernelVersion: 2.6
Contact: speakup@linux-speakup.org
Description: Gets or sets the volume of the speech synthesizer. Range is 0-9,
with zero being the softest, and nine being the loudest.

View File

@@ -2,7 +2,7 @@ What: /sys/bus/w1/devices/.../pio
Date: May 2012
Contact: Markus Franke <franm@hrz.tu-chemnitz.de>
Description: read/write the contents of the two PIO's of the DS28E04-100
see Documentation/w1/slaves/w1_ds28e04.rst for detailed information
see Documentation/w1/slaves/w1_ds28e04 for detailed information
Users: any user space application which wants to communicate with DS28E04-100
@@ -11,5 +11,5 @@ What: /sys/bus/w1/devices/.../eeprom
Date: May 2012
Contact: Markus Franke <franm@hrz.tu-chemnitz.de>
Description: read/write the contents of the EEPROM memory of the DS28E04-100
see Documentation/w1/slaves/w1_ds28e04.rst for detailed information
see Documentation/w1/slaves/w1_ds28e04 for detailed information
Users: any user space application which wants to communicate with DS28E04-100

View File

@@ -2,5 +2,5 @@ What: /sys/bus/w1/devices/.../w1_seq
Date: Apr 2015
Contact: Matt Campbell <mattrcampbell@gmail.com>
Description: Support for the DS28EA00 chain sequence function
see Documentation/w1/slaves/w1_therm.rst for detailed information
see Documentation/w1/slaves/w1_therm for detailed information
Users: any user space application which wants to communicate with DS28EA00

View File

@@ -17,7 +17,6 @@ Description:
directory has a name of the form "<key>-<vendor guid>"
and contains the following files:
=============== ========================================
attributes: A read-only text file enumerating the
EFI variable flags. Potential values
include:
@@ -60,14 +59,12 @@ Description:
size: As ASCII representation of the size of
the variable's value.
=============== ========================================
In addition, two other magic binary files are provided
in the top-level directory and are used for adding and
removing variables:
=============== ========================================
new_var: Takes a "struct efi_variable" and
instructs the EFI firmware to create a
new variable.
@@ -76,4 +73,3 @@ Description:
instructs the EFI firmware to remove any
variable that has a matching vendor GUID
and variable key name.
=============== ========================================

View File

@@ -7,7 +7,6 @@ Description:
This is only for the powerpc/powernv platform.
=============== ===============================================
initiate_dump: When '1' is written to it,
we will initiate a dump.
Read this file for supported commands.
@@ -20,11 +19,8 @@ Description:
and ID of the dump, use the id and type files.
Do not rely on any particular size of dump
type or dump id.
=============== ===============================================
Each dump has the following files:
=============== ===============================================
id: An ASCII representation of the dump ID
in hex (e.g. '0x01')
type: An ASCII representation of the type of
@@ -43,4 +39,3 @@ Description:
inaccessible.
Reading this file will get a list of
supported actions.
=============== ===============================================

View File

@@ -38,7 +38,6 @@ Description:
For each log entry (directory), there are the following
files:
============== ================================================
id: An ASCII representation of the ID of the
error log, in hex - e.g. "0x01".
@@ -59,4 +58,3 @@ Description:
entry will be removed from sysfs.
Reading this file will list the supported
operations (currently just acknowledge).
============== ================================================

View File

@@ -33,8 +33,6 @@ Description: If running under Xen:
Space separated list of supported guest system types. Each type
is in the format: <class>-<major>.<minor>-<arch>
With:
======== ============================================
<class>: "xen" -- x86: paravirtualized, arm: standard
"hvm" -- x86 only: fully virtualized
<major>: major guest interface version
@@ -45,7 +43,6 @@ Description: If running under Xen:
"x86_64": 64 bit x86 guest
"armv7l": 32 bit arm guest
"aarch64": 64 bit arm guest
======== ============================================
What: /sys/hypervisor/properties/changeset
Date: March 2009

View File

@@ -1,5 +0,0 @@
What: /sys/kernel/notes
Date: July 2009
Contact: <linux-kernel@vger.kernel.org>
Description: The /sys/kernel/notes file contains the binary representation
of the running vmlinux's .notes section.

View File

@@ -1,9 +1,3 @@
What: vDSO
Date: July 2011
KernelVersion: 3.0
Contact: Andy Lutomirski <luto@kernel.org>
Description:
On some architectures, when the kernel loads any userspace program it
maps an ELF DSO into that program's address space. This DSO is called
the vDSO and it often contains useful and highly-optimized alternatives
@@ -29,7 +23,6 @@ Unless otherwise noted, the set of symbols with any given version and the
ABI of those symbols is considered stable. It may vary across architectures,
though.
Note:
As of this writing, this ABI documentation as been confirmed for x86_64.
(As of this writing, this ABI documentation as been confirmed for x86_64.
The maintainers of the other vDSO-using architectures should confirm
that it is correct for their architecture.
that it is correct for their architecture.)

View File

@@ -14,8 +14,7 @@ Description:
This group contains the configuration for user defined ACPI
tables. The attributes of a user define table are:
aml
- a binary attribute that the user can use to
aml - a binary attribute that the user can use to
fill in the ACPI aml definitions. Once the aml
data is written to this file and the file is
closed the table will be loaded and ACPI devices
@@ -27,26 +26,11 @@ Description:
The rest of the attributes are read-only and are valid only
after the table has been loaded by filling the aml entry:
signature
- ASCII table signature
length
- length of table in bytes, including the header
revision
- ACPI Specification minor version number
oem_id
- ASCII OEM identification
oem_table_id
- ASCII OEM table identification
oem_revision
- OEM revision number
asl_compiler_id
- ASCII ASL compiler vendor ID
asl_compiler_revision
- ASL compiler version
signature - ASCII table signature
length - length of table in bytes, including the header
revision - ACPI Specification minor version number
oem_id - ASCII OEM identification
oem_table_id - ASCII OEM table identification
oem_revision - OEM revision number
asl_compiler_id - ASCII ASL compiler vendor ID
asl_compiler_revision - ASL compiler version

View File

@@ -1,241 +0,0 @@
What: /sys/kernel/config/most_<component>
Date: March 8, 2019
KernelVersion: 5.2
Description: Interface is used to configure and connect device channels
to component drivers.
Attributes are visible only when configfs is mounted. To mount
configfs in /sys/kernel/config directory use:
# mount -t configfs none /sys/kernel/config/
What: /sys/kernel/config/most_cdev/<link>
Date: March 8, 2019
KernelVersion: 5.2
Description:
The attributes:
buffer_size
configure the buffer size for this channel
subbuffer_size
configure the sub-buffer size for this channel
(needed for synchronous and isochrnous data)
num_buffers
configure number of buffers used for this
channel
datatype
configure type of data that will travel over
this channel
direction
configure whether this link will be an input
or output
dbr_size
configure DBR data buffer size (this is used
for MediaLB communication only)
packets_per_xact
configure the number of packets that will be
collected from the network before being
transmitted via USB (this is used for USB
communication only)
device
name of the device the link is to be attached to
channel
name of the channel the link is to be attached to
comp_params
pass parameters needed by some components
create_link
write '1' to this attribute to trigger the
creation of the link. In case of speculative
configuration, the creation is post-poned until
a physical device is being attached to the bus.
destroy_link
write '1' to this attribute to destroy an
active link
What: /sys/kernel/config/most_video/<link>
Date: March 8, 2019
KernelVersion: 5.2
Description:
The attributes:
buffer_size
configure the buffer size for this channel
subbuffer_size
configure the sub-buffer size for this channel
(needed for synchronous and isochrnous data)
num_buffers
configure number of buffers used for this
channel
datatype
configure type of data that will travel over
this channel
direction
configure whether this link will be an input
or output
dbr_size
configure DBR data buffer size (this is used
for MediaLB communication only)
packets_per_xact
configure the number of packets that will be
collected from the network before being
transmitted via USB (this is used for USB
communication only)
device
name of the device the link is to be attached to
channel
name of the channel the link is to be attached to
comp_params
pass parameters needed by some components
create_link
write '1' to this attribute to trigger the
creation of the link. In case of speculative
configuration, the creation is post-poned until
a physical device is being attached to the bus.
destroy_link
write '1' to this attribute to destroy an
active link
What: /sys/kernel/config/most_net/<link>
Date: March 8, 2019
KernelVersion: 5.2
Description:
The attributes:
buffer_size
configure the buffer size for this channel
subbuffer_size
configure the sub-buffer size for this channel
(needed for synchronous and isochrnous data)
num_buffers
configure number of buffers used for this
channel
datatype
configure type of data that will travel over
this channel
direction
configure whether this link will be an input
or output
dbr_size
configure DBR data buffer size (this is used
for MediaLB communication only)
packets_per_xact
configure the number of packets that will be
collected from the network before being
transmitted via USB (this is used for USB
communication only)
device
name of the device the link is to be attached to
channel
name of the channel the link is to be attached to
comp_params
pass parameters needed by some components
create_link
write '1' to this attribute to trigger the
creation of the link. In case of speculative
configuration, the creation is post-poned until
a physical device is being attached to the bus.
destroy_link
write '1' to this attribute to destroy an
active link
What: /sys/kernel/config/most_sound/<card>
Date: March 8, 2019
KernelVersion: 5.2
Description:
The attributes:
create_card
write '1' to this attribute to trigger the
registration of the sound card with the ALSA
subsystem.
What: /sys/kernel/config/most_sound/<card>/<link>
Date: March 8, 2019
KernelVersion: 5.2
Description:
The attributes:
buffer_size
configure the buffer size for this channel
subbuffer_size
configure the sub-buffer size for this channel
(needed for synchronous and isochrnous data)
num_buffers
configure number of buffers used for this
channel
datatype
configure type of data that will travel over
this channel
direction
configure whether this link will be an input
or output
dbr_size
configure DBR data buffer size (this is used
for MediaLB communication only)
packets_per_xact
configure the number of packets that will be
collected from the network before being
transmitted via USB (this is used for USB
communication only)
device
name of the device the link is to be attached to
channel
name of the channel the link is to be attached to
comp_params
pass parameters needed by some components
create_link
write '1' to this attribute to trigger the
creation of the link. In case of speculative
configuration, the creation is post-poned until
a physical device is being attached to the bus.
destroy_link
write '1' to this attribute to destroy an
active link

View File

@@ -10,24 +10,22 @@ Description:
This interfaces can be used to show spear's PCIe device capability.
Nodes are only visible when configfs is mounted. To mount configfs
in /config directory use::
in /config directory use:
# mount -t configfs none /config/
# mount -t configfs none /config/
For nth PCIe Device Controller /config/pcie-gadget.n/:
=============== ======================================================
link used to enable ltssm and read its status.
int_type used to configure and read type of supported interrupt
no_of_msi used to configure number of MSI vector needed and
For nth PCIe Device Controller
/config/pcie-gadget.n/
link ... used to enable ltssm and read its status.
int_type ...used to configure and read type of supported
interrupt
no_of_msi ... used to configure number of MSI vector needed and
to read no of MSI granted.
inta write 1 to assert INTA and 0 to de-assert.
send_msi write MSI vector to be sent.
vendor_id used to write and read vendor id (hex)
device_id used to write and read device id (hex)
bar0_size used to write and read bar0_size
bar0_address used to write and read bar0 mapped area in hex.
bar0_rw_offset used to write and read offset of bar0 where bar0_data
will be written or read.
bar0_data used to write and read data at bar0_rw_offset.
=============== ======================================================
inta ... write 1 to assert INTA and 0 to de-assert.
send_msi ... write MSI vector to be sent.
vendor_id ... used to write and read vendor id (hex)
device_id ... used to write and read device id (hex)
bar0_size ... used to write and read bar0_size
bar0_address ... used to write and read bar0 mapped area in hex.
bar0_rw_offset ... used to write and read offset of bar0 where
bar0_data will be written or read.
bar0_data ... used to write and read data at bar0_rw_offset.

View File

@@ -12,24 +12,18 @@ Description:
The attributes of a gadget:
================ ============================================
UDC bind a gadget to UDC/unbind a gadget;
write UDC's name found in /sys/class/udc/*
to bind a gadget, empty string "" to unbind.
UDC - bind a gadget to UDC/unbind a gadget;
write UDC's name found in /sys/class/udc/*
to bind a gadget, empty string "" to unbind.
max_speed maximum speed the driver supports. Valid
names are super-speed-plus, super-speed,
high-speed, full-speed, and low-speed.
bDeviceClass USB device class code
bDeviceSubClass USB device subclass code
bDeviceProtocol USB device protocol code
bMaxPacketSize0 maximum endpoint 0 packet size
bcdDevice bcd device release number
bcdUSB bcd USB specification version number
idProduct product ID
idVendor vendor ID
================ ============================================
bDeviceClass - USB device class code
bDeviceSubClass - USB device subclass code
bDeviceProtocol - USB device protocol code
bMaxPacketSize0 - maximum endpoint 0 packet size
bcdDevice - bcd device release number
bcdUSB - bcd USB specification version number
idProduct - product ID
idVendor - vendor ID
What: /config/usb-gadget/gadget/configs
Date: Jun 2013
@@ -43,10 +37,8 @@ KernelVersion: 3.11
Description:
The attributes of a configuration:
================ ======================================
bmAttributes configuration characteristics
MaxPower maximum power consumption from the bus
================ ======================================
bmAttributes - configuration characteristics
MaxPower - maximum power consumption from the bus
What: /config/usb-gadget/gadget/configs/config/strings
Date: Jun 2013
@@ -61,9 +53,7 @@ KernelVersion: 3.11
Description:
The attributes:
================ =========================
configuration configuration description
================ =========================
configuration - configuration description
What: /config/usb-gadget/gadget/functions
@@ -82,10 +72,8 @@ Description:
The attributes:
================= =====================================
compatible_id 8-byte string for "Compatible ID"
sub_compatible_id 8-byte string for "Sub Compatible ID"
================= =====================================
compatible_id - 8-byte string for "Compatible ID"
sub_compatible_id - 8-byte string for "Sub Compatible ID"
What: /config/usb-gadget/gadget/functions/<func>.<inst>/interface.<n>/<property>
Date: May 2014
@@ -97,19 +85,16 @@ Description:
The attributes:
===== ===============================================
type value 1..7 for interpreting the data
- 1: unicode string
- 2: unicode string with environment variable
- 3: binary
- 4: little-endian 32-bit
- 5: big-endian 32-bit
- 6: unicode string with a symbolic link
- 7: multiple unicode strings
data blob of data to be interpreted depending on
type - value 1..7 for interpreting the data
1: unicode string
2: unicode string with environment variable
3: binary
4: little-endian 32-bit
5: big-endian 32-bit
6: unicode string with a symbolic link
7: multiple unicode strings
data - blob of data to be interpreted depending on
type
===== ===============================================
What: /config/usb-gadget/gadget/strings
Date: Jun 2013
@@ -124,11 +109,9 @@ KernelVersion: 3.11
Description:
The attributes:
============ =================================
serialnumber gadget's serial number (string)
product gadget's product description
manufacturer gadget's manufacturer description
============ =================================
serialnumber - gadget's serial number (string)
product - gadget's product description
manufacturer - gadget's manufacturer description
What: /config/usb-gadget/gadget/os_desc
Date: May 2014
@@ -136,10 +119,8 @@ KernelVersion: 3.16
Description:
This group contains "OS String" extension handling attributes.
============= ===============================================
use flag turning "OS Desctiptors" support on/off
b_vendor_code one-byte value used for custom per-device and
use - flag turning "OS Desctiptors" support on/off
b_vendor_code - one-byte value used for custom per-device and
per-interface requests
qw_sign an identifier to be reported as "OS String"
qw_sign - an identifier to be reported as "OS String"
proper
============= ===============================================

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@@ -4,17 +4,13 @@ KernelVersion: 3.11
Description:
The attributes:
ifname
- network device interface name associated with
ifname - network device interface name associated with
this function instance
qmult
- queue length multiplier for high and
qmult - queue length multiplier for high and
super speed
host_addr
- MAC address of host's end of this
host_addr - MAC address of host's end of this
Ethernet over USB link
dev_addr
- MAC address of device's end of this
dev_addr - MAC address of device's end of this
Ethernet over USB link

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@@ -4,13 +4,11 @@ KernelVersion: 3.11
Description:
The attributes:
========== =============================================
ifname network device interface name associated with
ifname - network device interface name associated with
this function instance
qmult queue length multiplier for high and
qmult - queue length multiplier for high and
super speed
host_addr MAC address of host's end of this
host_addr - MAC address of host's end of this
Ethernet over USB link
dev_addr MAC address of device's end of this
dev_addr - MAC address of device's end of this
Ethernet over USB link
========== =============================================

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@@ -4,10 +4,8 @@ KernelVersion: 3.19
Description:
The attributes:
============= ============================================
protocol HID protocol to use
report_desc blob corresponding to HID report descriptors
protocol - HID protocol to use
report_desc - blob corresponding to HID report descriptors
except the data passed through /dev/hidg<N>
report_length HID report length
subclass HID device subclass to use
============= ============================================
report_length - HID report length
subclass - HID device subclass to use

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@@ -4,7 +4,5 @@ KernelVersion: 3.13
Description:
The attributes:
======= =======================
qlen depth of loopback queue
buflen buffer length
======= =======================
qlen - depth of loopback queue
buflen - buffer length

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@@ -4,14 +4,12 @@ KernelVersion: 3.13
Description:
The attributes:
=========== ==============================================
stall Set to permit function to halt bulk endpoints.
stall - Set to permit function to halt bulk endpoints.
Disabled on some USB devices known not to work
correctly. You should set it to true.
num_buffers Number of pipeline buffers. Valid numbers
num_buffers - Number of pipeline buffers. Valid numbers
are 2..4. Available only if
CONFIG_USB_GADGET_DEBUG_FILES is set.
=========== ==============================================
What: /config/usb-gadget/gadget/functions/mass_storage.name/lun.name
Date: Oct 2013
@@ -19,17 +17,15 @@ KernelVersion: 3.13
Description:
The attributes:
=========== ==============================================
file The path to the backing file for the LUN.
file - The path to the backing file for the LUN.
Required if LUN is not marked as removable.
ro Flag specifying access to the LUN shall be
ro - Flag specifying access to the LUN shall be
read-only. This is implied if CD-ROM emulation
is enabled as well as when it was impossible
to open "filename" in R/W mode.
removable Flag specifying that LUN shall be indicated as
removable - Flag specifying that LUN shall be indicated as
being removable.
cdrom Flag specifying that LUN shall be reported as
cdrom - Flag specifying that LUN shall be reported as
being a CD-ROM.
nofua Flag specifying that FUA flag
nofua - Flag specifying that FUA flag
in SCSI WRITE(10,12)
=========== ==============================================

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@@ -4,11 +4,9 @@ KernelVersion: 3.19
Description:
The attributes:
========== ====================================
index index value for the USB MIDI adapter
id ID string for the USB MIDI adapter
buflen MIDI buffer length
qlen USB read request queue length
in_ports number of MIDI input ports
out_ports number of MIDI output ports
========== ====================================
index - index value for the USB MIDI adapter
id - ID string for the USB MIDI adapter
buflen - MIDI buffer length
qlen - USB read request queue length
in_ports - number of MIDI input ports
out_ports - number of MIDI output ports

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@@ -4,8 +4,6 @@ KernelVersion: 4.1
Description:
The attributes:
========== ===========================================
pnp_string Data to be passed to the host in pnp string
q_len Number of requests per endpoint
========== ===========================================
pnp_string - Data to be passed to the host in pnp string
q_len - Number of requests per endpoint

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@@ -4,16 +4,14 @@ KernelVersion: 3.11
Description:
The attributes:
========= =============================================
ifname network device interface name associated with
ifname - network device interface name associated with
this function instance
qmult queue length multiplier for high and
qmult - queue length multiplier for high and
super speed
host_addr MAC address of host's end of this
host_addr - MAC address of host's end of this
Ethernet over USB link
dev_addr MAC address of device's end of this
dev_addr - MAC address of device's end of this
Ethernet over USB link
class USB interface class, default is 02 (hex)
subclass USB interface subclass, default is 06 (hex)
protocol USB interface protocol, default is 00 (hex)
========= =============================================
class - USB interface class, default is 02 (hex)
subclass - USB interface subclass, default is 06 (hex)
protocol - USB interface protocol, default is 00 (hex)

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@@ -4,13 +4,11 @@ KernelVersion: 3.13
Description:
The attributes:
============== ==================================
pattern 0 (all zeros), 1 (mod63), 2 (none)
isoc_interval 1..16
isoc_maxpacket 0 - 1023 (fs), 0 - 1024 (hs/ss)
isoc_mult 0..2 (hs/ss only)
isoc_maxburst 0..15 (ss only)
buflen buffer length
bulk_qlen depth of queue for bulk
iso_qlen depth of queue for iso
============== ==================================
pattern - 0 (all zeros), 1 (mod63), 2 (none)
isoc_interval - 1..16
isoc_maxpacket - 0 - 1023 (fs), 0 - 1024 (hs/ss)
isoc_mult - 0..2 (hs/ss only)
isoc_maxburst - 0..15 (ss only)
buflen - buffer length
bulk_qlen - depth of queue for bulk
iso_qlen - depth of queue for iso

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@@ -4,13 +4,11 @@ KernelVersion: 3.11
Description:
The attributes:
========== =============================================
ifname network device interface name associated with
ifname - network device interface name associated with
this function instance
qmult queue length multiplier for high and
qmult - queue length multiplier for high and
super speed
host_addr MAC address of host's end of this
host_addr - MAC address of host's end of this
Ethernet over USB link
dev_addr MAC address of device's end of this
dev_addr - MAC address of device's end of this
Ethernet over USB link
========== =============================================

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@@ -4,13 +4,11 @@ KernelVersion: 4.14
Description:
The attributes:
========== ===================================
c_chmask capture channel mask
c_srate capture sampling rate
c_ssize capture sample size (bytes)
p_chmask playback channel mask
p_srate playback sampling rate
p_ssize playback sample size (bytes)
req_number the number of pre-allocated request
for both capture and playback
========== ===================================
c_chmask - capture channel mask
c_srate - capture sampling rate
c_ssize - capture sample size (bytes)
p_chmask - playback channel mask
p_srate - playback sampling rate
p_ssize - playback sample size (bytes)
req_number - the number of pre-allocated request
for both capture and playback

View File

@@ -4,11 +4,9 @@ KernelVersion: 3.18
Description:
The attributes:
========= ============================
c_chmask capture channel mask
c_srate capture sampling rate
c_ssize capture sample size (bytes)
p_chmask playback channel mask
p_srate playback sampling rate
p_ssize playback sample size (bytes)
========= ============================
c_chmask - capture channel mask
c_srate - capture sampling rate
c_ssize - capture sample size (bytes)
p_chmask - playback channel mask
p_srate - playback sampling rate
p_ssize - playback sample size (bytes)

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@@ -3,11 +3,9 @@ Date: Dec 2014
KernelVersion: 4.0
Description: UVC function directory
=================== =============================
streaming_maxburst 0..15 (ss only)
streaming_maxpacket 1..1023 (fs), 1..3072 (hs/ss)
streaming_interval 1..16
=================== =============================
streaming_maxburst - 0..15 (ss only)
streaming_maxpacket - 1..1023 (fs), 1..3072 (hs/ss)
streaming_interval - 1..16
What: /config/usb-gadget/gadget/functions/uvc.name/control
Date: Dec 2014
@@ -15,11 +13,8 @@ KernelVersion: 4.0
Description: Control descriptors
All attributes read only:
================ =============================
bInterfaceNumber USB interface number for this
streaming interface
================ =============================
bInterfaceNumber - USB interface number for this
streaming interface
What: /config/usb-gadget/gadget/functions/uvc.name/control/class
Date: Dec 2014
@@ -52,16 +47,13 @@ KernelVersion: 4.0
Description: Default output terminal descriptors
All attributes read only:
============== =============================================
iTerminal index of string descriptor
bSourceID id of the terminal to which this terminal
iTerminal - index of string descriptor
bSourceID - id of the terminal to which this terminal
is connected
bAssocTerminal id of the input terminal to which this output
bAssocTerminal - id of the input terminal to which this output
terminal is associated
wTerminalType terminal type
bTerminalID a non-zero id of this terminal
============== =============================================
wTerminalType - terminal type
bTerminalID - a non-zero id of this terminal
What: /config/usb-gadget/gadget/functions/uvc.name/control/terminal/camera
Date: Dec 2014
@@ -74,19 +66,16 @@ KernelVersion: 4.0
Description: Default camera terminal descriptors
All attributes read only:
======================== ====================================
bmControls bitmap specifying which controls are
supported for the video stream
wOcularFocalLength the value of Locular
wObjectiveFocalLengthMax the value of Lmin
wObjectiveFocalLengthMin the value of Lmax
iTerminal index of string descriptor
bAssocTerminal id of the output terminal to which
this terminal is connected
wTerminalType terminal type
bTerminalID a non-zero id of this terminal
======================== ====================================
bmControls - bitmap specifying which controls are
supported for the video stream
wOcularFocalLength - the value of Locular
wObjectiveFocalLengthMax- the value of Lmin
wObjectiveFocalLengthMin- the value of Lmax
iTerminal - index of string descriptor
bAssocTerminal - id of the output terminal to which
this terminal is connected
wTerminalType - terminal type
bTerminalID - a non-zero id of this terminal
What: /config/usb-gadget/gadget/functions/uvc.name/control/processing
Date: Dec 2014
@@ -99,16 +88,13 @@ KernelVersion: 4.0
Description: Default processing unit descriptors
All attributes read only:
=============== ========================================
iProcessing index of string descriptor
bmControls bitmap specifying which controls are
iProcessing - index of string descriptor
bmControls - bitmap specifying which controls are
supported for the video stream
wMaxMultiplier maximum digital magnification x100
bSourceID id of the terminal to which this unit is
wMaxMultiplier - maximum digital magnification x100
bSourceID - id of the terminal to which this unit is
connected
bUnitID a non-zero id of this unit
=============== ========================================
bUnitID - a non-zero id of this unit
What: /config/usb-gadget/gadget/functions/uvc.name/control/header
Date: Dec 2014
@@ -128,11 +114,8 @@ KernelVersion: 4.0
Description: Streaming descriptors
All attributes read only:
================ =============================
bInterfaceNumber USB interface number for this
streaming interface
================ =============================
bInterfaceNumber - USB interface number for this
streaming interface
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/class
Date: Dec 2014
@@ -165,16 +148,13 @@ KernelVersion: 4.0
Description: Default color matching descriptors
All attributes read only:
======================== ======================================
bMatrixCoefficients matrix used to compute luma and
chroma values from the color primaries
bTransferCharacteristics optoelectronic transfer
characteristic of the source picutre,
also called the gamma function
bColorPrimaries color primaries and the reference
white
======================== ======================================
bMatrixCoefficients - matrix used to compute luma and
chroma values from the color primaries
bTransferCharacteristics- optoelectronic transfer
characteristic of the source picutre,
also called the gamma function
bColorPrimaries - color primaries and the reference
white
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg
Date: Dec 2014
@@ -188,52 +168,47 @@ Description: Specific MJPEG format descriptors
All attributes read only,
except bmaControls and bDefaultFrameIndex:
=================== =====================================
bFormatIndex unique id for this format descriptor;
bFormatIndex - unique id for this format descriptor;
only defined after parent header is
linked into the streaming class;
read-only
bmaControls this format's data for bmaControls in
bmaControls - this format's data for bmaControls in
the streaming header
bmInterfaceFlags specifies interlace information,
bmInterfaceFlags - specifies interlace information,
read-only
bAspectRatioY the X dimension of the picture aspect
bAspectRatioY - the X dimension of the picture aspect
ratio, read-only
bAspectRatioX the Y dimension of the picture aspect
bAspectRatioX - the Y dimension of the picture aspect
ratio, read-only
bmFlags characteristics of this format,
bmFlags - characteristics of this format,
read-only
bDefaultFrameIndex optimum frame index for this stream
=================== =====================================
bDefaultFrameIndex - optimum frame index for this stream
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/mjpeg/name/name
Date: Dec 2014
KernelVersion: 4.0
Description: Specific MJPEG frame descriptors
========================= =====================================
bFrameIndex unique id for this framedescriptor;
only defined after parent format is
linked into the streaming header;
read-only
dwFrameInterval indicates how frame interval can be
programmed; a number of values
separated by newline can be specified
dwDefaultFrameInterval the frame interval the device would
like to use as default
dwMaxVideoFrameBufferSize the maximum number of bytes the
compressor will produce for a video
frame or still image
dwMaxBitRate the maximum bit rate at the shortest
frame interval in bps
dwMinBitRate the minimum bit rate at the longest
frame interval in bps
wHeight height of decoded bitmap frame in px
wWidth width of decoded bitmam frame in px
bmCapabilities still image support, fixed frame-rate
support
========================= =====================================
bFrameIndex - unique id for this framedescriptor;
only defined after parent format is
linked into the streaming header;
read-only
dwFrameInterval - indicates how frame interval can be
programmed; a number of values
separated by newline can be specified
dwDefaultFrameInterval - the frame interval the device would
like to use as default
dwMaxVideoFrameBufferSize- the maximum number of bytes the
compressor will produce for a video
frame or still image
dwMaxBitRate - the maximum bit rate at the shortest
frame interval in bps
dwMinBitRate - the minimum bit rate at the longest
frame interval in bps
wHeight - height of decoded bitmap frame in px
wWidth - width of decoded bitmam frame in px
bmCapabilities - still image support, fixed frame-rate
support
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/uncompressed
Date: Dec 2014
@@ -245,54 +220,50 @@ Date: Dec 2014
KernelVersion: 4.0
Description: Specific uncompressed format descriptors
================== =======================================
bFormatIndex unique id for this format descriptor;
bFormatIndex - unique id for this format descriptor;
only defined after parent header is
linked into the streaming class;
read-only
bmaControls this format's data for bmaControls in
bmaControls - this format's data for bmaControls in
the streaming header
bmInterfaceFlags specifies interlace information,
bmInterfaceFlags - specifies interlace information,
read-only
bAspectRatioY the X dimension of the picture aspect
bAspectRatioY - the X dimension of the picture aspect
ratio, read-only
bAspectRatioX the Y dimension of the picture aspect
bAspectRatioX - the Y dimension of the picture aspect
ratio, read-only
bDefaultFrameIndex optimum frame index for this stream
bBitsPerPixel number of bits per pixel used to
bDefaultFrameIndex - optimum frame index for this stream
bBitsPerPixel - number of bits per pixel used to
specify color in the decoded video
frame
guidFormat globally unique id used to identify
guidFormat - globally unique id used to identify
stream-encoding format
================== =======================================
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/uncompressed/name/name
Date: Dec 2014
KernelVersion: 4.0
Description: Specific uncompressed frame descriptors
========================= =====================================
bFrameIndex unique id for this framedescriptor;
only defined after parent format is
linked into the streaming header;
read-only
dwFrameInterval indicates how frame interval can be
programmed; a number of values
separated by newline can be specified
dwDefaultFrameInterval the frame interval the device would
like to use as default
dwMaxVideoFrameBufferSize the maximum number of bytes the
compressor will produce for a video
frame or still image
dwMaxBitRate the maximum bit rate at the shortest
frame interval in bps
dwMinBitRate the minimum bit rate at the longest
frame interval in bps
wHeight height of decoded bitmap frame in px
wWidth width of decoded bitmam frame in px
bmCapabilities still image support, fixed frame-rate
support
========================= =====================================
bFrameIndex - unique id for this framedescriptor;
only defined after parent format is
linked into the streaming header;
read-only
dwFrameInterval - indicates how frame interval can be
programmed; a number of values
separated by newline can be specified
dwDefaultFrameInterval - the frame interval the device would
like to use as default
dwMaxVideoFrameBufferSize- the maximum number of bytes the
compressor will produce for a video
frame or still image
dwMaxBitRate - the maximum bit rate at the shortest
frame interval in bps
dwMinBitRate - the minimum bit rate at the longest
frame interval in bps
wHeight - height of decoded bitmap frame in px
wWidth - width of decoded bitmam frame in px
bmCapabilities - still image support, fixed frame-rate
support
What: /config/usb-gadget/gadget/functions/uvc.name/streaming/header
Date: Dec 2014
@@ -305,20 +276,17 @@ KernelVersion: 4.0
Description: Specific streaming header descriptors
All attributes read only:
==================== =====================================
bTriggerUsage how the host software will respond to
bTriggerUsage - how the host software will respond to
a hardware trigger interrupt event
bTriggerSupport flag specifying if hardware
bTriggerSupport - flag specifying if hardware
triggering is supported
bStillCaptureMethod method of still image caputre
bStillCaptureMethod - method of still image caputre
supported
bTerminalLink id of the output terminal to which
bTerminalLink - id of the output terminal to which
the video endpoint of this interface
is connected
bmInfo capabilities of this video streaming
bmInfo - capabilities of this video streaming
interface
==================== =====================================
What: /sys/class/udc/udc.name/device/gadget/video4linux/video.name/function_name
Date: May 2018

View File

@@ -23,7 +23,7 @@ error injections without having to know the details of the driver-specific
commands.
Note that the output of 'error-inj' shall be valid as input to 'error-inj'.
So this must work::
So this must work:
$ cat error-inj >einj.txt
$ cat einj.txt >error-inj
@@ -37,4 +37,4 @@ when changes are made.
The following CEC error injection implementations exist:
- Documentation/userspace-api/media/cec/cec-pin-error-inj.rst
- Documentation/media/uapi/cec/cec-pin-error-inj.rst

View File

@@ -8,29 +8,6 @@ Description: Sets the device address to be used for read or write through
only when the IOMMU is disabled.
The acceptable value is a string that starts with "0x"
What: /sys/kernel/debug/habanalabs/hl<n>/clk_gate
Date: May 2020
KernelVersion: 5.8
Contact: oded.gabbay@gmail.com
Description: Allow the root user to disable/enable in runtime the clock
gating mechanism in Gaudi. Due to how Gaudi is built, the
clock gating needs to be disabled in order to access the
registers of the TPC and MME engines. This is sometimes needed
during debug by the user and hence the user needs this option.
The user can supply a bitmask value, each bit represents
a different engine to disable/enable its clock gating feature.
The bitmask is composed of 20 bits:
======= ============
0 - 7 DMA channels
8 - 11 MME engines
12 - 19 TPC engines
======= ============
The bit's location of a specific engine can be determined
using (1 << GAUDI_ENGINE_ID_*). GAUDI_ENGINE_ID_* values
are defined in uapi habanalabs.h file in enum gaudi_engine_id
What: /sys/kernel/debug/habanalabs/hl<n>/command_buffers
Date: Jan 2019
KernelVersion: 5.1
@@ -63,22 +40,6 @@ Description: Allows the root user to read or write directly through the
the generic Linux user-space PCI mapping) because the DDR bar
is very small compared to the DDR memory and only the driver can
move the bar before and after the transaction.
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
What: /sys/kernel/debug/habanalabs/hl<n>/data64
Date: Jan 2020
KernelVersion: 5.6
Contact: oded.gabbay@gmail.com
Description: Allows the root user to read or write 64 bit data directly
through the device's PCI bar. Writing to this file generates a
write transaction while reading from the file generates a read
transaction. This custom interface is needed (instead of using
the generic Linux user-space PCI mapping) because the DDR bar
is very small compared to the DDR memory and only the driver can
move the bar before and after the transaction.
If the IOMMU is disabled, it also allows the root user to read
or write from the host a device VA of a host mapped memory
@@ -175,10 +136,3 @@ KernelVersion: 5.1
Contact: oded.gabbay@gmail.com
Description: Displays a list with information about all the active virtual
address mappings per ASID
What: /sys/kernel/debug/habanalabs/hl<n>/stop_on_err
Date: Mar 2020
KernelVersion: 5.6
Contact: oded.gabbay@gmail.com
Description: Sets the stop-on_error option for the device engines. Value of
"0" is for disable, otherwise enable.

View File

@@ -6,7 +6,7 @@ Description:
General information like which GPE is assigned to the EC and whether
the global lock should get used.
Knowing the EC GPE one can watch the amount of HW events related to
the EC here (XY -> GPE number from `/sys/kernel/debug/ec/*/gpe`):
the EC here (XY -> GPE number from /sys/kernel/debug/ec/*/gpe):
/sys/firmware/acpi/interrupts/gpeXY
The io file is binary and a userspace tool located here:
@@ -14,8 +14,7 @@ ftp://ftp.suse.com/pub/people/trenn/sources/ec/
should get used to read out the 256 Embedded Controller registers
or writing to them.
CAUTION:
Do not write to the Embedded Controller if you don't know
what you are doing! Rebooting afterwards also is a good idea.
This can influence the way your machine is cooled and fans may
not get switched on again after you did a wrong write.
CAUTION: Do not write to the Embedded Controller if you don't know
what you are doing! Rebooting afterwards also is a good idea.
This can influence the way your machine is cooled and fans may
not get switched on again after you did a wrong write.

View File

@@ -1,140 +0,0 @@
What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/regs
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: Dump debug registers from the HPRE cluster.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/cluster[0-3]/cluster_ctrl
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: Write the HPRE core selection in the cluster into this file,
and then we can read the debug information of the core.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/rdclr_en
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: HPRE cores debug registers read clear control. 1 means enable
register read clear, otherwise 0. Writing to this file has no
functional effect, only enable or disable counters clear after
reading of these registers.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/current_qm
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: One HPRE controller has one PF and multiple VFs, each function
has a QM. Select the QM which below qm refers to.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/regs
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: Dump debug registers from the HPRE.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/regs
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: Dump debug registers from the QM.
Available for PF and VF in host. VF in guest currently only
has one debug register.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/current_q
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: One QM may contain multiple queues. Select specific queue to
show its debug registers in above regs.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/clear_enable
Date: Sep 2019
Contact: linux-crypto@vger.kernel.org
Description: QM debug registers(regs) read clear control. 1 means enable
register read clear, otherwise 0.
Writing to this file has no functional effect, only enable or
disable counters clear after reading of these registers.
Only available for PF.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/err_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of invalid interrupts for
QM task completion.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/aeq_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of QM async event queue interrupts.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/abnormal_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of interrupts for QM abnormal event.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/create_qp_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of queue allocation errors.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/mb_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of failed QM mailbox commands.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
Four states: initiated, started, stopped and closed.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of sent requests.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/recv_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of received requests.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_busy_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of requests sent
with returning busy.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/send_fail_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of completed but error requests.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/invalid_req_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of invalid requests being received.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/overtime_thrhld
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Set the threshold time for counting the request which is
processed longer than the threshold.
0: disable(default), 1: 1 microsecond.
Available for both PF and VF, and take no other effect on HPRE.
What: /sys/kernel/debug/hisi_hpre/<bdf>/hpre_dfx/over_thrhld_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of time out requests.
Available for both PF and VF, and take no other effect on HPRE.

View File

@@ -1,113 +0,0 @@
What: /sys/kernel/debug/hisi_sec2/<bdf>/clear_enable
Date: Oct 2019
Contact: linux-crypto@vger.kernel.org
Description: Enabling/disabling of clear action after reading
the SEC debug registers.
0: disable, 1: enable.
Only available for PF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/current_qm
Date: Oct 2019
Contact: linux-crypto@vger.kernel.org
Description: One SEC controller has one PF and multiple VFs, each function
has a QM. This file can be used to select the QM which below
qm refers to.
Only available for PF.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/qm_regs
Date: Oct 2019
Contact: linux-crypto@vger.kernel.org
Description: Dump of QM related debug registers.
Available for PF and VF in host. VF in guest currently only
has one debug register.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/current_q
Date: Oct 2019
Contact: linux-crypto@vger.kernel.org
Description: One QM of SEC may contain multiple queues. Select specific
queue to show its debug registers in above 'regs'.
Only available for PF.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/clear_enable
Date: Oct 2019
Contact: linux-crypto@vger.kernel.org
Description: Enabling/disabling of clear action after reading
the SEC's QM debug registers.
0: disable, 1: enable.
Only available for PF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/err_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of invalid interrupts for
QM task completion.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/aeq_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of QM async event queue interrupts.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/abnormal_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of interrupts for QM abnormal event.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/create_qp_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of queue allocation errors.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/mb_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of failed QM mailbox commands.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
Four states: initiated, started, stopped and closed.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of sent requests.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/recv_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of received requests.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/send_busy_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of requests sent with returning busy.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/err_bd_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of BD type error requests
to be received.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/invalid_req_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of invalid requests being received.
Available for both PF and VF, and take no other effect on SEC.
What: /sys/kernel/debug/hisi_sec2/<bdf>/sec_dfx/done_flag_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of completed but marked error requests
to be received.
Available for both PF and VF, and take no other effect on SEC.

View File

@@ -1,114 +0,0 @@
What: /sys/kernel/debug/hisi_zip/<bdf>/comp_core[01]/regs
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: Dump of compression cores related debug registers.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/decomp_core[0-5]/regs
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: Dump of decompression cores related debug registers.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/clear_enable
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: Compression/decompression core debug registers read clear
control. 1 means enable register read clear, otherwise 0.
Writing to this file has no functional effect, only enable or
disable counters clear after reading of these registers.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/current_qm
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: One ZIP controller has one PF and multiple VFs, each function
has a QM. Select the QM which below qm refers to.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/regs
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: Dump of QM related debug registers.
Available for PF and VF in host. VF in guest currently only
has one debug register.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/current_q
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: One QM may contain multiple queues. Select specific queue to
show its debug registers in above regs.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/clear_enable
Date: Nov 2018
Contact: linux-crypto@vger.kernel.org
Description: QM debug registers(regs) read clear control. 1 means enable
register read clear, otherwise 0.
Writing to this file has no functional effect, only enable or
disable counters clear after reading of these registers.
Only available for PF.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/err_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of invalid interrupts for
QM task completion.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/aeq_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of QM async event queue interrupts.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/abnormal_irq
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of interrupts for QM abnormal event.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/create_qp_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of queue allocation errors.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/mb_err
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the number of failed QM mailbox commands.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/qm/status
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the status of the QM.
Four states: initiated, started, stopped and closed.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of sent requests.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/recv_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of received requests.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/send_busy_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of requests received
with returning busy.
Available for both PF and VF, and take no other effect on ZIP.
What: /sys/kernel/debug/hisi_zip/<bdf>/zip_dfx/err_bd_cnt
Date: Apr 2020
Contact: linux-crypto@vger.kernel.org
Description: Dump the total number of BD type error requests
to be received.
Available for both PF and VF, and take no other effect on ZIP.

View File

@@ -1,23 +0,0 @@
What: /sys/kernel/debug/hyperv/<UUID>/fuzz_test_state
Date: October 2019
KernelVersion: 5.5
Contact: Branden Bonaby <brandonbonaby94@gmail.com>
Description: Fuzz testing status of a vmbus device, whether its in an ON
state or a OFF state
Users: Debugging tools
What: /sys/kernel/debug/hyperv/<UUID>/delay/fuzz_test_buffer_interrupt_delay
Date: October 2019
KernelVersion: 5.5
Contact: Branden Bonaby <brandonbonaby94@gmail.com>
Description: Fuzz testing buffer interrupt delay value between 0 - 1000
microseconds (inclusive).
Users: Debugging tools
What: /sys/kernel/debug/hyperv/<UUID>/delay/fuzz_test_message_delay
Date: October 2019
KernelVersion: 5.5
Contact: Branden Bonaby <brandonbonaby94@gmail.com>
Description: Fuzz testing message delay value between 0 - 1000 microseconds
(inclusive).
Users: Debugging tools

View File

@@ -1,35 +0,0 @@
What: /sys/kernel/debug/moxtet/input
Date: March 2019
KernelVersion: 5.3
Contact: Marek Behún <marek.behun@nic.cz>
Description: (Read) Read input from the shift registers, in hexadecimal.
Returns N+1 bytes, where N is the number of Moxtet connected
modules. The first byte is from the CPU board itself.
Example::
101214
== =======================================
10 CPU board with SD card
12 2 = PCIe module, 1 = IRQ not active
14 4 = Peridot module, 1 = IRQ not active
== =======================================
What: /sys/kernel/debug/moxtet/output
Date: March 2019
KernelVersion: 5.3
Contact: Marek Behún <marek.behun@nic.cz>
Description: (RW) Read last written value to the shift registers, in
hexadecimal, or write values to the shift registers, also
in hexadecimal.
Example::
0102
== ================================================
01 01 was last written, or is to be written, to the
first module's shift register
02 the same for second module
== ================================================

View File

@@ -4,42 +4,42 @@ KernelVersion: 3.4
Contact: Kent Yoder <key@linux.vnet.ibm.com>
Description:
These debugfs interfaces are built by the nx-crypto driver, built in
These debugfs interfaces are built by the nx-crypto driver, built in
arch/powerpc/crypto/nx.
Error Detection
===============
errors:
A u32 providing a total count of errors since the driver was loaded. The
only errors counted here are those returned from the hcall, H_COP_OP.
- A u32 providing a total count of errors since the driver was loaded. The
only errors counted here are those returned from the hcall, H_COP_OP.
last_error:
The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not
recorded here (the hcall will retry until -EBUSY goes away).
- The most recent non-zero return code from the H_COP_OP hcall. -EBUSY is not
recorded here (the hcall will retry until -EBUSY goes away).
last_error_pid:
The process ID of the process who received the most recent error from the
hcall.
- The process ID of the process who received the most recent error from the
hcall.
Device Use
==========
aes_bytes:
The total number of bytes encrypted using AES in any of the driver's
supported modes.
- The total number of bytes encrypted using AES in any of the driver's
supported modes.
aes_ops:
The total number of AES operations submitted to the hardware.
- The total number of AES operations submitted to the hardware.
sha256_bytes:
The total number of bytes hashed by the hardware using SHA-256.
- The total number of bytes hashed by the hardware using SHA-256.
sha256_ops:
The total number of SHA-256 operations submitted to the hardware.
- The total number of SHA-256 operations submitted to the hardware.
sha512_bytes:
The total number of bytes hashed by the hardware using SHA-512.
- The total number of bytes hashed by the hardware using SHA-512.
sha512_ops:
The total number of SHA-512 operations submitted to the hardware.
- The total number of SHA-512 operations submitted to the hardware.

View File

@@ -4,15 +4,16 @@ KernelVersion: 2.6.20
Contact: Thomas Maier <balagi@justmail.de>
Description:
debugfs interface
-----------------
The pktcdvd module (packet writing driver) creates
these files in debugfs:
/sys/kernel/debug/pktcdvd/pktcdvd[0-7]/
info (0444) Lots of driver statistics and infos.
==== ====== ====================================
info 0444 Lots of driver statistics and infos.
==== ====== ====================================
Example:
-------
Example::
cat /sys/kernel/debug/pktcdvd/pktcdvd0/info
cat /sys/kernel/debug/pktcdvd/pktcdvd0/info

View File

@@ -1,14 +0,0 @@
What: /sys/kernel/debug/turris-mox-rwtm/do_sign
Date: Jun 2020
KernelVersion: 5.8
Contact: Marek Behún <marek.behun@nic.cz>
Description:
======= ===========================================================
(Write) Message to sign with the ECDSA private key stored in
device's OTP. The message must be exactly 64 bytes
(since this is intended for SHA-512 hashes).
(Read) The resulting signature, 136 bytes. This contains the
R and S values of the ECDSA signature, both in
big-endian format.
======= ===========================================================

View File

@@ -27,17 +27,16 @@ Description:
for writing, two for the type and at least a single byte of
data.
Example::
// Request EC info type 3 (EC firmware build date)
// Corresponds with sending type 0x00f0 with
// MBOX = [38, 00, 03, 00]
$ echo 00 f0 38 00 03 00 > /sys/kernel/debug/wilco_ec/raw
// View the result. The decoded ASCII result "12/21/18" is
// included after the raw hex.
// Corresponds with MBOX = [00, 00, 31, 32, 2f, 32, 31, 38, ...]
$ cat /sys/kernel/debug/wilco_ec/raw
00 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 ..12/21/18.8...
Example:
// Request EC info type 3 (EC firmware build date)
// Corresponds with sending type 0x00f0 with
// MBOX = [38, 00, 03, 00]
$ echo 00 f0 38 00 03 00 > /sys/kernel/debug/wilco_ec/raw
// View the result. The decoded ASCII result "12/21/18" is
// included after the raw hex.
// Corresponds with MBOX = [00, 00, 31, 32, 2f, 32, 31, 38, ...]
$ cat /sys/kernel/debug/wilco_ec/raw
00 00 31 32 2f 32 31 2f 31 38 00 38 00 01 00 2f 00 ..12/21/18.8...
Note that the first 16 bytes of the received MBOX[] will be
printed, even if some of the data is junk, and skipping bytes

View File

@@ -10,29 +10,29 @@ Description:
<uapi/linux/wmi.h>
1) To perform an SMBIOS call from userspace, you'll need to
first determine the minimum size of the calling interface
buffer for your machine.
Platforms that contain larger buffers can return larger
objects from the system firmware.
Commonly this size is either 4k or 32k.
first determine the minimum size of the calling interface
buffer for your machine.
Platforms that contain larger buffers can return larger
objects from the system firmware.
Commonly this size is either 4k or 32k.
To determine the size of the buffer read() a u64 dword from
the WMI character device /dev/wmi/dell-smbios.
To determine the size of the buffer read() a u64 dword from
the WMI character device /dev/wmi/dell-smbios.
2) After you've determined the minimum size of the calling
interface buffer, you can allocate a structure that represents
the structure documented above.
interface buffer, you can allocate a structure that represents
the structure documented above.
3) In the 'length' object store the size of the buffer you
determined above and allocated.
determined above and allocated.
4) In this buffer object, prepare as necessary for the SMBIOS
call you're interested in. Typically SMBIOS buffers have
"class", "select", and "input" defined to values that coincide
with the data you are interested in.
Documenting class/select/input values is outside of the scope
of this documentation. Check with the libsmbios project for
further documentation on these values.
call you're interested in. Typically SMBIOS buffers have
"class", "select", and "input" defined to values that coincide
with the data you are interested in.
Documenting class/select/input values is outside of the scope
of this documentation. Check with the libsmbios project for
further documentation on these values.
6) Run the call by using ioctl() as described in the header.

View File

@@ -6,14 +6,13 @@ Description: The /dev/kmsg character device node provides userspace access
to the kernel's printk buffer.
Injecting messages:
Every write() to the opened device node places a log entry in
the kernel's printk buffer.
The logged line can be prefixed with a <N> syslog prefix, which
carries the syslog priority and facility. The single decimal
prefix number is composed of the 3 lowest bits being the syslog
priority and the next 8 bits the syslog facility number.
priority and the higher bits the syslog facility number.
If no prefix is given, the priority number is the default kernel
log priority and the facility number is set to LOG_USER (1). It
@@ -22,7 +21,6 @@ Description: The /dev/kmsg character device node provides userspace access
the messages can always be reliably determined.
Accessing the buffer:
Every read() from the opened device node receives one record
of the kernel's printk buffer.
@@ -50,7 +48,6 @@ Description: The /dev/kmsg character device node provides userspace access
if needed, without limiting the interface to a single reader.
The device supports seek with the following parameters:
SEEK_SET, 0
seek to the first entry in the buffer
SEEK_END, 0
@@ -59,17 +56,6 @@ Description: The /dev/kmsg character device node provides userspace access
seek after the last record available at the time
the last SYSLOG_ACTION_CLEAR was issued.
Other seek operations or offsets are not supported because of
the special behavior this device has. The device allows to read
or write only whole variable length messages (records) that are
stored in a ring buffer.
Because of the non-standard behavior also the error values are
non-standard. -ESPIPE is returned for non-zero offset. -EINVAL
is returned for other operations, e.g. SEEK_CUR. This behavior
and values are historical and could not be modified without the
risk of breaking userspace.
The output format consists of a prefix carrying the syslog
prefix including priority and facility, the 64 bit message
sequence number and the monotonic timestamp in microseconds,
@@ -90,30 +76,27 @@ Description: The /dev/kmsg character device node provides userspace access
readable context of the message, for reliable processing in
userspace.
Example::
7,160,424069,-;pci_root PNP0A03:00: host bridge window [io 0x0000-0x0cf7] (ignored)
SUBSYSTEM=acpi
DEVICE=+acpi:PNP0A03:00
6,339,5140900,-;NET: Registered protocol family 10
30,340,5690716,-;udevd[80]: starting version 181
Example:
7,160,424069,-;pci_root PNP0A03:00: host bridge window [io 0x0000-0x0cf7] (ignored)
SUBSYSTEM=acpi
DEVICE=+acpi:PNP0A03:00
6,339,5140900,-;NET: Registered protocol family 10
30,340,5690716,-;udevd[80]: starting version 181
The DEVICE= key uniquely identifies devices the following way:
============ =================
b12:8 block dev_t
c127:3 char dev_t
n8 netdev ifindex
+sound:card0 subsystem:devname
============ =================
b12:8 - block dev_t
c127:3 - char dev_t
n8 - netdev ifindex
+sound:card0 - subsystem:devname
The flags field carries '-' by default. A 'c' indicates a
fragment of a line. Note, that these hints about continuation
lines are not necessarily correct, and the stream could be
interleaved with unrelated messages, but merging the lines in
the output usually produces better human readable results. A
similar logic is used internally when messages are printed to
the console, /proc/kmsg or the syslog() syscall.
fragment of a line. All following fragments are flagged with
'+'. Note, that these hints about continuation lines are not
necessarily correct, and the stream could be interleaved with
unrelated messages, but merging the lines in the output
usually produces better human readable results. A similar
logic is used internally when messages are printed to the
console, /proc/kmsg or the syslog() syscall.
By default, kernel tries to avoid fragments by concatenating
when it can and fragments are rare; however, when extended

View File

@@ -17,33 +17,26 @@ Description:
echoing a value to <securityfs>/evm made up of the
following bits:
=== ==================================================
Bit Effect
=== ==================================================
0 Enable HMAC validation and creation
1 Enable digital signature validation
2 Permit modification of EVM-protected metadata at
runtime. Not supported if HMAC validation and
creation is enabled.
31 Disable further runtime modification of EVM policy
=== ==================================================
For example::
For example:
echo 1 ><securityfs>/evm
echo 1 ><securityfs>/evm
will enable HMAC validation and creation
::
echo 0x80000003 ><securityfs>/evm
echo 0x80000003 ><securityfs>/evm
will enable HMAC and digital signature validation and
HMAC creation and disable all further modification of policy.
::
echo 0x80000006 ><securityfs>/evm
echo 0x80000006 ><securityfs>/evm
will enable digital signature validation, permit
modification of EVM-protected metadata and
@@ -72,7 +65,7 @@ Description:
Shows the set of extended attributes used to calculate or
validate the EVM signature, and allows additional attributes
to be added at runtime. Any signatures generated after
additional attributes are added (and on files possessing those
additional attributes are added (and on files posessing those
additional attributes) will only be valid if the same
additional attributes are configured on system boot. Writing
a single period (.) will lock the xattr list from any further

View File

@@ -12,16 +12,15 @@ Description:
The following file operations are supported:
open(2)
Currently the only useful flags are O_RDWR.
Currently the only useful flags are O_RDWR.
ioctl(2)
Initiate various actions.
See the inline documentation in [include/uapi]<linux/gpio.h>
for descriptions of all ioctls.
Initiate various actions.
See the inline documentation in [include/uapi]<linux/gpio.h>
for descriptions of all ioctls.
close(2)
Stops and free up the I/O contexts that was associated
with the file descriptor.
Stops and free up the I/O contexts that was associated
with the file descriptor.
Users: TBD

View File

@@ -15,24 +15,20 @@ Description:
IMA appraisal, if configured, uses these file measurements
for local measurement appraisal.
::
rule format: action [condition ...]
rule format: action [condition ...]
action: measure | dont_measure | appraise | dont_appraise |
audit | hash | dont_hash
condition:= base | lsm [option]
action: measure | dont_measure | appraise | dont_appraise |
audit | hash | dont_hash
condition:= base | lsm [option]
base: [[func=] [mask=] [fsmagic=] [fsuuid=] [uid=]
[euid=] [fowner=] [fsname=]]
lsm: [[subj_user=] [subj_role=] [subj_type=]
[obj_user=] [obj_role=] [obj_type=]]
option: [[appraise_type=]] [template=] [permit_directio]
[appraise_flag=] [keyrings=]
base:
func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK]MODULE_CHECK]
[FIRMWARE_CHECK]
base: func:= [BPRM_CHECK][MMAP_CHECK][CREDS_CHECK][FILE_CHECK][MODULE_CHECK]
[FIRMWARE_CHECK]
[KEXEC_KERNEL_CHECK] [KEXEC_INITRAMFS_CHECK]
[KEXEC_CMDLINE] [KEY_CHECK]
[KEXEC_CMDLINE]
mask:= [[^]MAY_READ] [[^]MAY_WRITE] [[^]MAY_APPEND]
[[^]MAY_EXEC]
fsmagic:= hex value
@@ -40,20 +36,13 @@ Description:
uid:= decimal value
euid:= decimal value
fowner:= decimal value
lsm: are LSM specific
option:
appraise_type:= [imasig] [imasig|modsig]
appraise_flag:= [check_blacklist]
Currently, blacklist check is only for files signed with appended
signature.
keyrings:= list of keyrings
(eg, .builtin_trusted_keys|.ima). Only valid
when action is "measure" and func is KEY_CHECK.
lsm: are LSM specific
option: appraise_type:= [imasig]
template:= name of a defined IMA template type
(eg, ima-ng). Only valid when action is "measure".
pcr:= decimal value
default policy:
default policy:
# PROC_SUPER_MAGIC
dont_measure fsmagic=0x9fa0
dont_appraise fsmagic=0x9fa0
@@ -101,8 +90,7 @@ Description:
Examples of LSM specific definitions:
SELinux::
SELinux:
dont_measure obj_type=var_log_t
dont_appraise obj_type=var_log_t
dont_measure obj_type=auditd_log_t
@@ -110,24 +98,10 @@ Description:
measure subj_user=system_u func=FILE_CHECK mask=MAY_READ
measure subj_role=system_r func=FILE_CHECK mask=MAY_READ
Smack::
Smack:
measure subj_user=_ func=FILE_CHECK mask=MAY_READ
Example of measure rules using alternate PCRs::
Example of measure rules using alternate PCRs:
measure func=KEXEC_KERNEL_CHECK pcr=4
measure func=KEXEC_INITRAMFS_CHECK pcr=5
Example of appraise rule allowing modsig appended signatures:
appraise func=KEXEC_KERNEL_CHECK appraise_type=imasig|modsig
Example of measure rule using KEY_CHECK to measure all keys:
measure func=KEY_CHECK
Example of measure rule using KEY_CHECK to only measure
keys added to .builtin_trusted_keys or .ima keyring:
measure func=KEY_CHECK keyrings=.builtin_trusted_keys|.ima

View File

@@ -6,38 +6,27 @@ Description:
of block devices. Each line contains the following 14
fields:
== ===================================
1 major number
2 minor mumber
3 device name
4 reads completed successfully
5 reads merged
6 sectors read
7 time spent reading (ms)
8 writes completed
9 writes merged
10 sectors written
11 time spent writing (ms)
12 I/Os currently in progress
13 time spent doing I/Os (ms)
14 weighted time spent doing I/Os (ms)
== ===================================
1 - major number
2 - minor mumber
3 - device name
4 - reads completed successfully
5 - reads merged
6 - sectors read
7 - time spent reading (ms)
8 - writes completed
9 - writes merged
10 - sectors written
11 - time spent writing (ms)
12 - I/Os currently in progress
13 - time spent doing I/Os (ms)
14 - weighted time spent doing I/Os (ms)
Kernel 4.18+ appends four more fields for discard
tracking putting the total at 18:
== ===================================
15 discards completed successfully
16 discards merged
17 sectors discarded
18 time spent discarding
== ===================================
Kernel 5.5+ appends two more fields for flush requests:
== =====================================
19 flush requests completed successfully
20 time spent flushing
== =====================================
15 - discards completed successfully
16 - discards merged
17 - sectors discarded
18 - time spent discarding
For more details refer to Documentation/admin-guide/iostats.rst

View File

@@ -11,31 +11,31 @@ Description:
Additionally, the fields Pss_Anon, Pss_File and Pss_Shmem
are not present in /proc/pid/smaps. These fields represent
the sum of the Pss field of each type (anon, file, shmem).
For more details, see Documentation/filesystems/proc.rst
For more details, see Documentation/filesystems/proc.txt
and the procfs man page.
Typical output looks like this::
Typical output looks like this:
00100000-ff709000 ---p 00000000 00:00 0 [rollup]
Size: 1192 kB
KernelPageSize: 4 kB
MMUPageSize: 4 kB
Rss: 884 kB
Pss: 385 kB
Pss_Anon: 301 kB
Pss_File: 80 kB
Pss_Shmem: 4 kB
Shared_Clean: 696 kB
Shared_Dirty: 0 kB
Private_Clean: 120 kB
Private_Dirty: 68 kB
Referenced: 884 kB
Anonymous: 68 kB
LazyFree: 0 kB
AnonHugePages: 0 kB
ShmemPmdMapped: 0 kB
Shared_Hugetlb: 0 kB
Private_Hugetlb: 0 kB
Swap: 0 kB
SwapPss: 0 kB
Locked: 385 kB
00100000-ff709000 ---p 00000000 00:00 0 [rollup]
Size: 1192 kB
KernelPageSize: 4 kB
MMUPageSize: 4 kB
Rss: 884 kB
Pss: 385 kB
Pss_Anon: 301 kB
Pss_File: 80 kB
Pss_Shmem: 4 kB
Shared_Clean: 696 kB
Shared_Dirty: 0 kB
Private_Clean: 120 kB
Private_Dirty: 68 kB
Referenced: 884 kB
Anonymous: 68 kB
LazyFree: 0 kB
AnonHugePages: 0 kB
ShmemPmdMapped: 0 kB
Shared_Hugetlb: 0 kB
Private_Hugetlb: 0 kB
Swap: 0 kB
SwapPss: 0 kB
Locked: 385 kB

View File

@@ -9,25 +9,25 @@ Description: Generic interface to platform dependent persistent storage.
provide a generic interface to show records captured in
the dying moments. In the case of a panic the last part
of the console log is captured, but other interesting
data can also be saved::
data can also be saved.
# mount -t pstore -o kmsg_bytes=8000 - /sys/fs/pstore
# mount -t pstore -o kmsg_bytes=8000 - /sys/fs/pstore
$ ls -l /sys/fs/pstore/
total 0
-r--r--r-- 1 root root 7896 Nov 30 15:38 dmesg-erst-1
$ ls -l /sys/fs/pstore/
total 0
-r--r--r-- 1 root root 7896 Nov 30 15:38 dmesg-erst-1
Different users of this interface will result in different
filename prefixes. Currently two are defined:
- "dmesg" - saved console log
- "mce" - architecture dependent data from fatal h/w error
"dmesg" - saved console log
"mce" - architecture dependent data from fatal h/w error
Once the information in a file has been read, removing
the file will signal to the underlying persistent storage
device that it can reclaim the space for later re-use::
device that it can reclaim the space for later re-use.
$ rm /sys/fs/pstore/dmesg-erst-1
$ rm /sys/fs/pstore/dmesg-erst-1
The expectation is that all files in /sys/fs/pstore/
will be saved elsewhere and erased from persistent store
@@ -44,3 +44,4 @@ Description: Generic interface to platform dependent persistent storage.
backends are available, the preferred backend may be
set by passing the pstore.backend= argument to the kernel at
boot time.

View File

@@ -33,14 +33,6 @@ Description:
Requires a separate RTC_PIE_ON call to enable the periodic
interrupts.
* RTC_VL_READ: Read the voltage inputs status of the RTC when
supported. The value is a bit field of RTC_VL_*, giving the
status of the main and backup voltages.
* RTC_VL_CLEAR: Clear the voltage status of the RTC. Some RTCs
need user interaction when the backup power provider is
replaced or charged to be able to clear the status.
The ioctl() calls supported by the older /dev/rtc interface are
also supported by the newer RTC class framework. However,
because the chips and systems are not standardized, some PC/AT

View File

@@ -4,27 +4,17 @@ Contact: Jerome Marchand <jmarchan@redhat.com>
Description:
The /sys/block/<disk>/stat files displays the I/O
statistics of disk <disk>. They contain 11 fields:
== ==============================================
1 reads completed successfully
2 reads merged
3 sectors read
4 time spent reading (ms)
5 writes completed
6 writes merged
7 sectors written
8 time spent writing (ms)
9 I/Os currently in progress
10 time spent doing I/Os (ms)
11 weighted time spent doing I/Os (ms)
12 discards completed
13 discards merged
14 sectors discarded
15 time spent discarding (ms)
16 flush requests completed
17 time spent flushing (ms)
== ==============================================
1 - reads completed successfully
2 - reads merged
3 - sectors read
4 - time spent reading (ms)
5 - writes completed
6 - writes merged
7 - sectors written
8 - time spent writing (ms)
9 - I/Os currently in progress
10 - time spent doing I/Os (ms)
11 - weighted time spent doing I/Os (ms)
For more details refer Documentation/admin-guide/iostats.rst
@@ -277,24 +267,6 @@ Description:
device ("host-aware" or "host-managed" zone model). For regular
block devices, the value is always 0.
What: /sys/block/<disk>/queue/max_active_zones
Date: July 2020
Contact: Niklas Cassel <niklas.cassel@wdc.com>
Description:
For zoned block devices (zoned attribute indicating
"host-managed" or "host-aware"), the sum of zones belonging to
any of the zone states: EXPLICIT OPEN, IMPLICIT OPEN or CLOSED,
is limited by this value. If this value is 0, there is no limit.
What: /sys/block/<disk>/queue/max_open_zones
Date: July 2020
Contact: Niklas Cassel <niklas.cassel@wdc.com>
Description:
For zoned block devices (zoned attribute indicating
"host-managed" or "host-aware"), the sum of zones belonging to
any of the zone states: EXPLICIT OPEN or IMPLICIT OPEN,
is limited by this value. If this value is 0, there is no limit.
What: /sys/block/<disk>/queue/chunk_sectors
Date: September 2016
Contact: Hannes Reinecke <hare@suse.com>

View File

@@ -8,13 +8,11 @@ Description:
It has the following valid values:
== ========================================================
0 OFF - the LED is not activated on activity
1 BLINK_ON - the LED blinks on every 10ms when activity is
detected.
2 BLINK_OFF - the LED is on when idle, and blinks off
every 10ms when activity is detected.
== ========================================================
Note that the user must turn sw_activity OFF it they wish to
control the activity LED via the em_message file.

View File

@@ -1,46 +0,0 @@
What: /sys/block/rnbd<N>/rnbd/unmap_device
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: To unmap a volume, "normal" or "force" has to be written to:
/sys/block/rnbd<N>/rnbd/unmap_device
When "normal" is used, the operation will fail with EBUSY if any process
is using the device. When "force" is used, the device is also unmapped
when device is in use. All I/Os that are in progress will fail.
Example::
# echo "normal" > /sys/block/rnbd0/rnbd/unmap_device
What: /sys/block/rnbd<N>/rnbd/state
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: The file contains the current state of the block device. The state file
returns "open" when the device is successfully mapped from the server
and accepting I/O requests. When the connection to the server gets
disconnected in case of an error (e.g. link failure), the state file
returns "closed" and all I/O requests submitted to it will fail with -EIO.
What: /sys/block/rnbd<N>/rnbd/session
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: RNBD uses RTRS session to transport the data between client and
server. The entry "session" contains the name of the session, that
was used to establish the RTRS session. It's the same name that
was passed as server parameter to the map_device entry.
What: /sys/block/rnbd<N>/rnbd/mapping_path
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: Contains the path that was passed as "device_path" to the map_device
operation.
What: /sys/block/rnbd<N>/rnbd/access_mode
Date: Feb 2020
KernelVersion: 5.7
Contact: Jack Wang <jinpu.wang@cloud.ionos.com> Danil Kipnis <danil.kipnis@cloud.ionos.com>
Description: Contains the device access mode: ro, rw or migration.

View File

@@ -5,7 +5,6 @@ Description:
This attribute indicates the full path of ACPI namespace
object associated with the device object. For example,
\_SB_.PCI0.
This file is not present for device objects representing
fixed ACPI hardware features (like power and sleep
buttons).
@@ -68,16 +67,14 @@ Description:
The return value is a decimal integer representing the device's
status bitmap:
=========== ==================================================
Bit [0] Set if the device is present.
Bit [1] Set if the device is enabled and decoding its
resources.
Bit [2] Set if the device should be shown in the UI.
Bit [3] Set if the device is functioning properly (cleared
if device failed its diagnostics).
Bit [4] Set if the battery is present.
Bits [31:5] Reserved (must be cleared)
=========== ==================================================
Bit [0] Set if the device is present.
Bit [1] Set if the device is enabled and decoding its
resources.
Bit [2] Set if the device should be shown in the UI.
Bit [3] Set if the device is functioning properly (cleared if
device failed its diagnostics).
Bit [4] Set if the battery is present.
Bits [31:5] Reserved (must be cleared)
If bit [0] is clear, then bit 1 must also be clear (a device
that is not present cannot be enabled).

View File

@@ -1,241 +0,0 @@
What: /sys/bus/coresight/devices/<cti-name>/enable
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable/Disable the CTI hardware.
What: /sys/bus/coresight/devices/<cti-name>/powered
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Indicate if the CTI hardware is powered.
What: /sys/bus/coresight/devices/<cti-name>/ctmid
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Display the associated CTM ID
What: /sys/bus/coresight/devices/<cti-name>/nr_trigger_cons
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Number of devices connected to triggers on this CTI
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/name
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Name of connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_signals
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Input trigger signals from connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/in_types
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Functional types for the input trigger signals
from connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_signals
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Output trigger signals to connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/triggers<N>/out_types
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Functional types for the output trigger signals
to connected device <N>
What: /sys/bus/coresight/devices/<cti-name>/regs/inout_sel
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Select the index for inen and outen registers.
What: /sys/bus/coresight/devices/<cti-name>/regs/inen
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write the CTIINEN register selected by inout_sel.
What: /sys/bus/coresight/devices/<cti-name>/regs/outen
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write the CTIOUTEN register selected by inout_sel.
What: /sys/bus/coresight/devices/<cti-name>/regs/gate
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write CTIGATE register.
What: /sys/bus/coresight/devices/<cti-name>/regs/asicctl
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Read or write ASICCTL register.
What: /sys/bus/coresight/devices/<cti-name>/regs/intack
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write the INTACK register.
What: /sys/bus/coresight/devices/<cti-name>/regs/appset
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Set CTIAPPSET register to activate channel. Read back to
determine current value of register.
What: /sys/bus/coresight/devices/<cti-name>/regs/appclear
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write APPCLEAR register to deactivate channel.
What: /sys/bus/coresight/devices/<cti-name>/regs/apppulse
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Write APPPULSE to pulse a channel active for one clock
cycle.
What: /sys/bus/coresight/devices/<cti-name>/regs/chinstatus
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read current status of channel inputs.
What: /sys/bus/coresight/devices/<cti-name>/regs/choutstatus
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of channel outputs.
What: /sys/bus/coresight/devices/<cti-name>/regs/triginstatus
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of input trigger signals
What: /sys/bus/coresight/devices/<cti-name>/regs/trigoutstatus
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) read current status of output trigger signals.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_attach
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Attach a CTI input trigger to a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigin_detach
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Detach a CTI input trigger from a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_attach
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Attach a CTI output trigger to a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_detach
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Detach a CTI output trigger from a CTM channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_enable
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable CTIGATE for single channel (Write) or list enabled
channels through the gate (R).
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_gate_disable
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Disable CTIGATE for single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_set
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Activate a single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_clear
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Deactivate a single channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_pulse
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Pulse a single channel - activate for a single clock cycle.
What: /sys/bus/coresight/devices/<cti-name>/channels/trigout_filtered
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) List of output triggers filtered across all connections.
What: /sys/bus/coresight/devices/<cti-name>/channels/trig_filter_enable
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Enable or disable trigger output signal filtering.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_inuse
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) show channels with at least one attached trigger signal.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_free
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) show channels with no attached trigger signals.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_sel
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (RW) Write channel number to select a channel to view, read to
see selected channel number.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_in
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read to see input triggers connected to selected view
channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_out
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Read) Read to see output triggers connected to selected view
channel.
What: /sys/bus/coresight/devices/<cti-name>/channels/chan_xtrigs_reset
Date: March 2020
KernelVersion 5.7
Contact: Mike Leach or Mathieu Poirier
Description: (Write) Clear all channel / trigger programming.

View File

@@ -4,10 +4,7 @@ KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Add/remove a sink from a trace path. There can be multiple
source for a single sink.
ex::
echo 1 > /sys/bus/coresight/devices/20010000.etb/enable_sink
ex: echo 1 > /sys/bus/coresight/devices/20010000.etb/enable_sink
What: /sys/bus/coresight/devices/<memory_map>.etb/trigger_cntr
Date: November 2014
@@ -23,21 +20,21 @@ What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rdp
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Defines the depth, in words, of the trace RAM in powers of
Description: (R) Defines the depth, in words, of the trace RAM in powers of
2. The value is read directly from HW register RDP, 0x004.
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/sts
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB status register. The value
Description: (R) Shows the value held by the ETB status register. The value
is read directly from HW register STS, 0x00C.
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rrp
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB RAM Read Pointer register
Description: (R) Shows the value held by the ETB RAM Read Pointer register
that is used to read entries from the Trace RAM over the APB
interface. The value is read directly from HW register RRP,
0x014.
@@ -46,7 +43,7 @@ What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/rwp
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB RAM Write Pointer register
Description: (R) Shows the value held by the ETB RAM Write Pointer register
that is used to sets the write pointer to write entries from
the CoreSight bus into the Trace RAM. The value is read directly
from HW register RWP, 0x018.
@@ -55,21 +52,21 @@ What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/trg
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Similar to "trigger_cntr" above except that this value is
Description: (R) Similar to "trigger_cntr" above except that this value is
read directly from HW register TRG, 0x01C.
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ctl
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB Control register. The value
Description: (R) Shows the value held by the ETB Control register. The value
is read directly from HW register CTL, 0x020.
What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ffsr
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB Formatter and Flush Status
Description: (R) Shows the value held by the ETB Formatter and Flush Status
register. The value is read directly from HW register FFSR,
0x300.
@@ -77,6 +74,6 @@ What: /sys/bus/coresight/devices/<memory_map>.etb/mgmt/ffcr
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the ETB Formatter and Flush Control
Description: (R) Shows the value held by the ETB Formatter and Flush Control
register. The value is read directly from HW register FFCR,
0x304.

View File

@@ -146,28 +146,28 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_addr_cmp
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Provides the number of address comparators pairs accessible
Description: (R) Provides the number of address comparators pairs accessible
on a trace unit, as specified by bit 3:0 of register ETMCCR.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_cntr
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Provides the number of counters accessible on a trace unit,
Description: (R) Provides the number of counters accessible on a trace unit,
as specified by bit 15:13 of register ETMCCR.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/nr_ctxid_cmp
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Provides the number of context ID comparator available on a
Description: (R) Provides the number of context ID comparator available on a
trace unit, as specified by bit 25:24 of register ETMCCR.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/reset
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Write) Cancels all configuration on a trace unit and set it back
Description: (W) Cancels all configuration on a trace unit and set it back
to its boot configuration.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/seq_12_event
@@ -216,7 +216,7 @@ What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/curr_seq_state
Date: November 2014
KernelVersion: 3.19
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Holds the current state of the sequencer.
Description: (R) Holds the current state of the sequencer.
What: /sys/bus/coresight/devices/<memory_map>.[etm|ptm]/sync_freq
Date: November 2014

View File

@@ -1,4 +1,4 @@
What: /sys/bus/coresight/devices/etm<N>/enable_source
What: /sys/bus/coresight/devices/<memory_map>.etm/enable_source
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
@@ -8,82 +8,82 @@ Description: (RW) Enable/disable tracing on this specific trace entiry.
of coresight components linking the source to the sink is
configured and managed automatically by the coresight framework.
What: /sys/bus/coresight/devices/etm<N>/cpu
What: /sys/bus/coresight/devices/<memory_map>.etm/cpu
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) The CPU this tracing entity is associated with.
Description: (R) The CPU this tracing entity is associated with.
What: /sys/bus/coresight/devices/etm<N>/nr_pe_cmp
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_pe_cmp
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of PE comparator inputs that are
Description: (R) Indicates the number of PE comparator inputs that are
available for tracing.
What: /sys/bus/coresight/devices/etm<N>/nr_addr_cmp
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_addr_cmp
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of address comparator pairs that are
Description: (R) Indicates the number of address comparator pairs that are
available for tracing.
What: /sys/bus/coresight/devices/etm<N>/nr_cntr
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_cntr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of counters that are available for
Description: (R) Indicates the number of counters that are available for
tracing.
What: /sys/bus/coresight/devices/etm<N>/nr_ext_inp
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ext_inp
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates how many external inputs are implemented.
Description: (R) Indicates how many external inputs are implemented.
What: /sys/bus/coresight/devices/etm<N>/numcidc
What: /sys/bus/coresight/devices/<memory_map>.etm/numcidc
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of Context ID comparators that are
Description: (R) Indicates the number of Context ID comparators that are
available for tracing.
What: /sys/bus/coresight/devices/etm<N>/numvmidc
What: /sys/bus/coresight/devices/<memory_map>.etm/numvmidc
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of VMID comparators that are available
Description: (R) Indicates the number of VMID comparators that are available
for tracing.
What: /sys/bus/coresight/devices/etm<N>/nrseqstate
What: /sys/bus/coresight/devices/<memory_map>.etm/nrseqstate
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of sequencer states that are
Description: (R) Indicates the number of sequencer states that are
implemented.
What: /sys/bus/coresight/devices/etm<N>/nr_resource
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_resource
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of resource selection pairs that are
Description: (R) Indicates the number of resource selection pairs that are
available for tracing.
What: /sys/bus/coresight/devices/etm<N>/nr_ss_cmp
What: /sys/bus/coresight/devices/<memory_map>.etm/nr_ss_cmp
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the number of single-shot comparator controls that
Description: (R) Indicates the number of single-shot comparator controls that
are available for tracing.
What: /sys/bus/coresight/devices/etm<N>/reset
What: /sys/bus/coresight/devices/<memory_map>.etm/reset
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Write) Cancels all configuration on a trace unit and set it back
Description: (W) Cancels all configuration on a trace unit and set it back
to its boot configuration.
What: /sys/bus/coresight/devices/etm<N>/mode
What: /sys/bus/coresight/devices/<memory_map>.etm/mode
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
@@ -91,420 +91,373 @@ Description: (RW) Controls various modes supported by this ETM, for example
P0 instruction tracing, branch broadcast, cycle counting and
context ID tracing.
What: /sys/bus/coresight/devices/etm<N>/pe
What: /sys/bus/coresight/devices/<memory_map>.etm/pe
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls which PE to trace.
What: /sys/bus/coresight/devices/etm<N>/event
What: /sys/bus/coresight/devices/<memory_map>.etm/event
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls the tracing of arbitrary events from bank 0 to 3.
What: /sys/bus/coresight/devices/etm<N>/event_instren
What: /sys/bus/coresight/devices/<memory_map>.etm/event_instren
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls the behavior of the events in bank 0 to 3.
What: /sys/bus/coresight/devices/etm<N>/event_ts
What: /sys/bus/coresight/devices/<memory_map>.etm/event_ts
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls the insertion of global timestamps in the trace
streams.
What: /sys/bus/coresight/devices/etm<N>/syncfreq
What: /sys/bus/coresight/devices/<memory_map>.etm/syncfreq
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls how often trace synchronization requests occur.
What: /sys/bus/coresight/devices/etm<N>/cyc_threshold
What: /sys/bus/coresight/devices/<memory_map>.etm/cyc_threshold
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Sets the threshold value for cycle counting.
What: /sys/bus/coresight/devices/etm<N>/bb_ctrl
What: /sys/bus/coresight/devices/<memory_map>.etm/bb_ctrl
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls which regions in the memory map are enabled to
use branch broadcasting.
What: /sys/bus/coresight/devices/etm<N>/event_vinst
What: /sys/bus/coresight/devices/<memory_map>.etm/event_vinst
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls instruction trace filtering.
What: /sys/bus/coresight/devices/etm<N>/s_exlevel_vinst
What: /sys/bus/coresight/devices/<memory_map>.etm/s_exlevel_vinst
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) In Secure state, each bit controls whether instruction
tracing is enabled for the corresponding exception level.
What: /sys/bus/coresight/devices/etm<N>/ns_exlevel_vinst
What: /sys/bus/coresight/devices/<memory_map>.etm/ns_exlevel_vinst
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) In non-secure state, each bit controls whether instruction
tracing is enabled for the corresponding exception level.
What: /sys/bus/coresight/devices/etm<N>/addr_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/addr_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which address comparator or pair (of comparators) to
work with.
What: /sys/bus/coresight/devices/etm<N>/addr_instdatatype
What: /sys/bus/coresight/devices/<memory_map>.etm/addr_instdatatype
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls what type of comparison the trace unit performs.
What: /sys/bus/coresight/devices/etm<N>/addr_single
What: /sys/bus/coresight/devices/<memory_map>.etm/addr_single
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Used to setup single address comparator values.
What: /sys/bus/coresight/devices/etm<N>/addr_range
What: /sys/bus/coresight/devices/<memory_map>.etm/addr_range
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Used to setup address range comparator values.
What: /sys/bus/coresight/devices/etm<N>/seq_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/seq_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which sequensor.
What: /sys/bus/coresight/devices/etm<N>/seq_state
What: /sys/bus/coresight/devices/<memory_map>.etm/seq_state
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Use this to set, or read, the sequencer state.
What: /sys/bus/coresight/devices/etm<N>/seq_event
What: /sys/bus/coresight/devices/<memory_map>.etm/seq_event
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Moves the sequencer state to a specific state.
What: /sys/bus/coresight/devices/etm<N>/seq_reset_event
What: /sys/bus/coresight/devices/<memory_map>.etm/seq_reset_event
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Moves the sequencer to state 0 when a programmed event
occurs.
What: /sys/bus/coresight/devices/etm<N>/cntr_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which counter unit to work with.
What: /sys/bus/coresight/devices/etm<N>/cntrldvr
What: /sys/bus/coresight/devices/<memory_map>.etm/cntrldvr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) This sets or returns the reload count value of the
specific counter.
What: /sys/bus/coresight/devices/etm<N>/cntr_val
What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_val
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) This sets or returns the current count value of the
specific counter.
What: /sys/bus/coresight/devices/etm<N>/cntr_ctrl
What: /sys/bus/coresight/devices/<memory_map>.etm/cntr_ctrl
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls the operation of the selected counter.
What: /sys/bus/coresight/devices/etm<N>/res_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/res_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which resource selection unit to work with.
What: /sys/bus/coresight/devices/etm<N>/res_ctrl
What: /sys/bus/coresight/devices/<memory_map>.etm/res_ctrl
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Controls the selection of the resources in the trace unit.
What: /sys/bus/coresight/devices/etm<N>/ctxid_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which context ID comparator to work with.
What: /sys/bus/coresight/devices/etm<N>/ctxid_pid
What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_pid
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Get/Set the context ID comparator value to trigger on.
What: /sys/bus/coresight/devices/etm<N>/ctxid_masks
What: /sys/bus/coresight/devices/<memory_map>.etm/ctxid_masks
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Mask for all 8 context ID comparator value
registers (if implemented).
What: /sys/bus/coresight/devices/etm<N>/vmid_idx
What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_idx
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select which virtual machine ID comparator to work with.
What: /sys/bus/coresight/devices/etm<N>/vmid_val
What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_val
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Get/Set the virtual machine ID comparator value to
trigger on.
What: /sys/bus/coresight/devices/etm<N>/vmid_masks
What: /sys/bus/coresight/devices/<memory_map>.etm/vmid_masks
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Mask for all 8 virtual machine ID comparator value
registers (if implemented).
What: /sys/bus/coresight/devices/etm<N>/addr_exlevel_s_ns
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Set the Exception Level matching bits for secure and
non-secure exception levels.
What: /sys/bus/coresight/devices/etm<N>/vinst_pe_cmp_start_stop
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Access the start stop control register for PE input
comparators.
What: /sys/bus/coresight/devices/etm<N>/addr_cmp_view
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the current settings for the selected address
comparator.
What: /sys/bus/coresight/devices/etm<N>/sshot_idx
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Select the single shot control register to access.
What: /sys/bus/coresight/devices/etm<N>/sshot_ctrl
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Access the selected single shot control register.
What: /sys/bus/coresight/devices/etm<N>/sshot_status
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the current value of the selected single shot
status register.
What: /sys/bus/coresight/devices/etm<N>/sshot_pe_ctrl
Date: December 2019
KernelVersion: 5.5
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (RW) Access the selected single show PE comparator control
register.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcoslsr
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcoslsr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the OS Lock Status Register (0x304).
Description: (R) Print the content of the OS Lock Status Register (0x304).
The value it taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpdcr
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpdcr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Power Down Control Register
Description: (R) Print the content of the Power Down Control Register
(0x310). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpdsr
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpdsr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Power Down Status Register
Description: (R) Print the content of the Power Down Status Register
(0x314). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trclsr
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trclsr
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the SW Lock Status Register
Description: (R) Print the content of the SW Lock Status Register
(0xFB4). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcauthstatus
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcauthstatus
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Authentication Status Register
Description: (R) Print the content of the Authentication Status Register
(0xFB8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcdevid
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcdevid
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Device ID Register
Description: (R) Print the content of the Device ID Register
(0xFC8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcdevtype
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcdevtype
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Device Type Register
Description: (R) Print the content of the Device Type Register
(0xFCC). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr0
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr0
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Peripheral ID0 Register
Description: (R) Print the content of the Peripheral ID0 Register
(0xFE0). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr1
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr1
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Peripheral ID1 Register
Description: (R) Print the content of the Peripheral ID1 Register
(0xFE4). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr2
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr2
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Peripheral ID2 Register
Description: (R) Print the content of the Peripheral ID2 Register
(0xFE8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcpidr3
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcpidr3
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the Peripheral ID3 Register
Description: (R) Print the content of the Peripheral ID3 Register
(0xFEC). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trcconfig
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trcconfig
Date: February 2016
KernelVersion: 4.07
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the trace configuration register
Description: (R) Print the content of the trace configuration register
(0x010) as currently set by SW.
What: /sys/bus/coresight/devices/etm<N>/mgmt/trctraceid
What: /sys/bus/coresight/devices/<memory_map>.etm/mgmt/trctraceid
Date: February 2016
KernelVersion: 4.07
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Print the content of the trace ID register (0x040).
Description: (R) Print the content of the trace ID register (0x040).
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr0
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr0
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the tracing capabilities of the trace unit (0x1E0).
Description: (R) Returns the tracing capabilities of the trace unit (0x1E0).
The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr1
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr1
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the tracing capabilities of the trace unit (0x1E4).
Description: (R) Returns the tracing capabilities of the trace unit (0x1E4).
The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr2
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr2
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the maximum size of the data value, data address,
Description: (R) Returns the maximum size of the data value, data address,
VMID, context ID and instuction address in the trace unit
(0x1E8). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr3
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr3
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the value associated with various resources
Description: (R) Returns the value associated with various resources
available to the trace unit. See the Trace Macrocell
architecture specification for more details (0x1E8).
The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr4
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr4
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns how many resources the trace unit supports (0x1F0).
Description: (R) Returns how many resources the trace unit supports (0x1F0).
The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr5
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr5
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns how many resources the trace unit supports (0x1F4).
Description: (R) Returns how many resources the trace unit supports (0x1F4).
The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr8
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr8
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the maximum speculation depth of the instruction
Description: (R) Returns the maximum speculation depth of the instruction
trace stream. (0x180). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr9
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr9
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of P0 right-hand keys that the trace unit
Description: (R) Returns the number of P0 right-hand keys that the trace unit
can use (0x184). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr10
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr10
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of P1 right-hand keys that the trace unit
Description: (R) Returns the number of P1 right-hand keys that the trace unit
can use (0x188). The value is taken directly from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr11
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr11
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of special P1 right-hand keys that the
Description: (R) Returns the number of special P1 right-hand keys that the
trace unit can use (0x18C). The value is taken directly from
the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr12
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr12
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of conditional P1 right-hand keys that
Description: (R) Returns the number of conditional P1 right-hand keys that
the trace unit can use (0x190). The value is taken directly
from the HW.
What: /sys/bus/coresight/devices/etm<N>/trcidr/trcidr13
What: /sys/bus/coresight/devices/<memory_map>.etm/trcidr/trcidr13
Date: April 2015
KernelVersion: 4.01
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Returns the number of special conditional P1 right-hand keys
Description: (R) Returns the number of special conditional P1 right-hand keys
that the trace unit can use (0x194). The value is taken
directly from the HW.

View File

@@ -42,7 +42,7 @@ What: /sys/bus/coresight/devices/<memory_map>.stm/status
Date: April 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) List various control and status registers. The specific
Description: (R) List various control and status registers. The specific
layout and content is driver specific.
What: /sys/bus/coresight/devices/<memory_map>.stm/traceid

View File

@@ -11,21 +11,21 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/rsz
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Defines the size, in 32-bit words, of the local RAM buffer.
Description: (R) Defines the size, in 32-bit words, of the local RAM buffer.
The value is read directly from HW register RSZ, 0x004.
What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/sts
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC status register. The value
Description: (R) Shows the value held by the TMC status register. The value
is read directly from HW register STS, 0x00C.
What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/rrp
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC RAM Read Pointer register
Description: (R) Shows the value held by the TMC RAM Read Pointer register
that is used to read entries from the Trace RAM over the APB
interface. The value is read directly from HW register RRP,
0x014.
@@ -34,7 +34,7 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/rwp
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC RAM Write Pointer register
Description: (R) Shows the value held by the TMC RAM Write Pointer register
that is used to sets the write pointer to write entries from
the CoreSight bus into the Trace RAM. The value is read directly
from HW register RWP, 0x018.
@@ -43,21 +43,21 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/trg
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Similar to "trigger_cntr" above except that this value is
Description: (R) Similar to "trigger_cntr" above except that this value is
read directly from HW register TRG, 0x01C.
What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/ctl
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC Control register. The value
Description: (R) Shows the value held by the TMC Control register. The value
is read directly from HW register CTL, 0x020.
What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/ffsr
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC Formatter and Flush Status
Description: (R) Shows the value held by the TMC Formatter and Flush Status
register. The value is read directly from HW register FFSR,
0x300.
@@ -65,7 +65,7 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/ffcr
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC Formatter and Flush Control
Description: (R) Shows the value held by the TMC Formatter and Flush Control
register. The value is read directly from HW register FFCR,
0x304.
@@ -73,7 +73,7 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/mode
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Shows the value held by the TMC Mode register, which
Description: (R) Shows the value held by the TMC Mode register, which
indicate the mode the device has been configured to enact. The
The value is read directly from the MODE register, 0x028.
@@ -81,7 +81,7 @@ What: /sys/bus/coresight/devices/<memory_map>.tmc/mgmt/devid
Date: March 2016
KernelVersion: 4.7
Contact: Mathieu Poirier <mathieu.poirier@linaro.org>
Description: (Read) Indicates the capabilities of the Coresight TMC.
Description: (R) Indicates the capabilities of the Coresight TMC.
The value is read directly from the DEVID register, 0xFC8,
What: /sys/bus/coresight/devices/<memory_map>.tmc/buffer_size

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