Commit Graph

123009 Commits

Author SHA1 Message Date
Olof Johansson
ef3c139ba0 Merge tag 'ti-k3-dt-for-v5.10-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nmenon/linux into arm/dt
Second and final device tree updates towards 5.10-rc1 for TI K3 platform.

* tag 'ti-k3-dt-for-v5.10-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/nmenon/linux: (23 commits)
  arm64: dts: ti: k3-j7200-common-proc-board: Add USB support
  arm64: dts: ti: k3-j7200-common-proc-board: Configure the SERDES lane function
  arm64: dts: ti: k3-j7200-main: Add USB controller
  arm64: dts: ti: k3-j7200-main.dtsi: Add USB to SERDES lane MUX
  arm64: dts: ti: k3-j7200-main: Add SERDES lane control mux
  dt-bindings: ti-serdes-mux: Add defines for J7200 SoC
  arm64: dts: ti: k3-j721e-common-proc-board: align GPIO hog names with dtschema
  arm64: dts: ti: k3-j7200-common-proc-board: Add support for eMMC and SD card
  arm64: dts: ti: k3-j7200-main: Add support for MMC/SD controller nodes
  arm64: dts: ti: k3-j7200-som-p0: Add HyperFlash node
  arm64: dts: ti: k3-j7200-mcu-wakeup: Add HyperBus node
  arm64: dts: ti: k3-j7200-common-proc-board: Add I2C IO expanders
  arm64: dts: ti: k3-j7200: Add I2C nodes
  arm64: dts: ti: k3-j7200-common-proc-board: add mcu cpsw nuss pinmux and phy defs
  arm64: dts: ti: k3-j7200-mcu: add mcu cpsw nuss node
  arm64: dts: ti: k3-j7200-main: add main navss cpts node
  arm64: dts: ti: k3-j7200: add DMA support
  arm64: dts: ti: Add support for J7200 Common Processor Board
  arm64: dts: ti: Add support for J7200 SoC
  dt-bindings: arm: ti: Add bindings for J7200 SoC
  ...

Link: https://lore.kernel.org/r/20201002134559.orvmgbns57qlyn3i@akan
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-10-03 12:16:18 -07:00
Roger Quadros
ba90e0c926 dt-bindings: ti-serdes-mux: Add defines for J7200 SoC
There are 4 lanes in each J7200 SERDES. Each SERDES lane mux can
select upto 4 different IPs. Define all the possible functions.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Peter Rosin <peda@axentia.se>
Cc: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20200930122032.23481-2-rogerq@ti.com
2020-09-30 07:34:02 -05:00
Olof Johansson
dd59aed76d Merge tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
arm64: tegra: Changes for v5.10-rc1

This set of changes fixes some minor issues in existing device trees and
adds ID EEPROMs on the Jetson Xavier NX. All ID EEPROMs are now labelled
to allow them to be detected by software.

It also adds support for the Tegra234 VDK board, which is a pre-silicon
platform for the upcoming Orin SoC.

* tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  arm64: tegra: Initial Tegra234 VDK support
  arm64: tegra: Populate EEPROMs for Jetson Xavier NX
  arm64: tegra: Add label properties for EEPROMs
  arm64: tegra: Add DT binding for AHUB components
  arm64: tegra: Enable ACONNECT, ADMA and AGIC on Jetson Nano
  arm64: tegra: Properly size register regions for GPU on Tegra194
  arm64: tegra: Use valid PWM period for VDD_GPU on Tegra210
  arm64: tegra: Describe display controller outputs for Tegra210
  arm64: tegra: Disable SD card write-protection on Jetson Nano
  arm64: tegra: Add VBUS supply for micro USB port on Jetson Nano
  arm64: tegra: Wire up pinctrl states for all DPAUX controllers
  arm64: tegra: Add ID EEPROMs on Jetson AGX Xavier

Link: https://lore.kernel.org/r/20200918150303.3938852-5-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 10:01:52 -07:00
Olof Johansson
61d5d791cb Merge tag 'tegra-for-5.10-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
dt-bindings: Changes for v5.10-rc1

This set of changes adds compatible strings for Tegra234 to existing
device tree bindings.

* tag 'tegra-for-5.10-dt-bindings' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
  dt-bindings: power: supply: Add device-tree binding for Summit SMB3xx
  dt-bindings: tegra: pmc: Add Tegra234 support
  dt-bindings: fuse: tegra: Add Tegra234 support
  dt-bindings: tegra: Add Tegra234 VDK compatible
  dt-bindings: misc: tegra186-misc: Add Tegra234 support
  dt-bindings: misc: tegra186-misc: Add missing compatible string
  dt-bindings: misc: tegra-apbmisc: Add missing compatible strings

Link: https://lore.kernel.org/r/20200918150303.3938852-1-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 10:01:07 -07:00
Olof Johansson
0b69d912b3 Merge tag 'renesas-arm-dt-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt
Renesas ARM DT updates for v5.10 (take two)

  - PCIe endpoint support for the RZ/G2H SoC,
  - SATA support for the HopeRun HiHope RZ/G2H board,
  - Increase support (CAN, LED, SPI NOR, VIN, VSP) for the RZ/G1H SoC on
    the iWave Qseven board (G21D), and its camera add-on board,
  - Initial support for the R-Car V3U SoC on the Falcon CPU and BreakOut
    boards,
  - HDMI display and sound support for the R-Car M3-W+ SoC on the
    Salvator-XS board,
  - Digital Radio Interface (DRIF) support for the R-Car E3 SoC,
  - Minor fixes and cleanups.

* tag 'renesas-arm-dt-for-v5.10-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: (24 commits)
  arm64: dts: renesas: r8a774c0: Fix MSIOF1 DMA channels
  arm64: dts: renesas: r8a77990: Fix MSIOF1 DMA channels
  arm64: dts: renesas: r8a77990: Add DRIF support
  ARM: dts: r8a7742-iwg21d-q7-dbcm-ca: Add can0 support to camera DB
  ARM: dts: r8a7742: Add VSP support
  arm64: dts: renesas: Drop superfluous pin configuration containers
  arm64: dts: renesas: r8a77961: salvator-xs: Add HDMI Sound support
  arm64: dts: renesas: r8a77961: salvator-xs: Add HDMI Display support
  arm64: dts: renesas: r8a77961: Add HDMI device nodes
  arm64: dts: renesas: r8a77961: Add DU device nodes
  arm64: dts: renesas: r8a77961: Add VSP device nodes
  arm64: dts: renesas: r8a77961: Add FCP device nodes
  arm64: dts: renesas: Fix pin controller node names
  ARM: dts: renesas: Fix pin controller node names
  arm64: dts: renesas: Add Renesas Falcon boards support
  arm64: dts: renesas: Add Renesas R8A779A0 SoC support
  ARM: dts: r8a7742-iwg21d-q7: Enable SD2 LED indication
  ARM: dts: r8a7742-iwg21d-q7: Add can1 support to carrier board
  ARM: dts: r8a7742-iwg21d-q7: Add SPI NOR support
  ARM: dts: r8a7742: Add VIN DT nodes
  ...

Link: https://lore.kernel.org/r/20200918124800.15555-2-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
2020-09-26 09:59:32 -07:00
Roger Quadros
c65176fd49 arm64: dts: ti: k3-j721e: Rename mux header and update macro names
We intend to use one header file for SERDES MUX for all
TI SoCs so rename the header file.

The exsting macros are too generic. Prefix them with SoC name.

While at that, add the missing configurations for completeness.

Fixes: b766e3b0d5 ("arm64: dts: ti: k3-j721e-main: Add system controller node and SERDES lane mux")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Peter Rosin <peda@axentia.se>
Link: https://lore.kernel.org/r/20200918165930.2031-1-rogerq@ti.com
2020-09-21 07:17:20 -05:00
Thierry Reding
639448912b arm64: tegra: Initial Tegra234 VDK support
The NVIDIA Tegra234 VDK is a simulation platform for the Orin SoC. It
supports a subset of the peripherals that will be available in the final
chip and serves as a bootstrapping platform.

Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:58:07 +02:00
David Heidelberg
2312c291f6 dt-bindings: power: supply: Add device-tree binding for Summit SMB3xx
Summit SMB3xx series is a Programmable Switching Li+ Battery Charger.
This patch adds device-tree binding for Summit SMB345, SMB347 and SMB358
chargers.

Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-09-18 15:54:50 +02:00
Yoshihiro Shimoda
fa2d185f75 dt-bindings: clock: Add r8a779a0 CPG Core Clock Definitions
Add all Clock Pulse Generator Core Clock Outputs for the Renesas R-Car
V3U (R8A779A0) SoC.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599657211-17504-2-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 16:58:13 +02:00
Yoshihiro Shimoda
c2ff081093 dt-bindings: power: Add r8a779a0 SYSC power domain definitions
Add power domain indices for R-Car V3U (r8a779a0).

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1599470390-29719-5-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-09-10 16:57:34 +02:00
Linus Torvalds
d2283cdc18 Merge tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
 "A set of fixes for interrupt chip drivers:

   - Revert the platform driver conversion of interrupt chip drivers as
     it turned out to create more problems than it solves.

   - Fix a trivial typo in the new module helpers which made probing
     reliably fail.

   - Small fixes in the STM32 and MIPS Ingenic drivers

   - The TI firmware rework which had badly managed dependencies and had
     to wait post rc1"

* tag 'irq-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/ingenic: Leave parent IRQ unmasked on suspend
  irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake
  irqchip: Revert modular support for drivers using IRQCHIP_PLATFORM_DRIVER helperse
  irqchip: Fix probing deferal when using IRQCHIP_PLATFORM_DRIVER helpers
  arm64: dts: k3-am65: Update the RM resource types
  arm64: dts: k3-am65: ti-sci-inta/intr: Update to latest bindings
  arm64: dts: k3-j721e: ti-sci-inta/intr: Update to latest bindings
  irqchip/ti-sci-inta: Add support for INTA directly connecting to GIC
  irqchip/ti-sci-inta: Do not store TISCI device id in platform device id field
  dt-bindings: irqchip: Convert ti, sci-inta bindings to yaml
  dt-bindings: irqchip: ti, sci-inta: Update docs to support different parent.
  irqchip/ti-sci-intr: Add support for INTR being a parent to INTR
  dt-bindings: irqchip: Convert ti, sci-intr bindings to yaml
  dt-bindings: irqchip: ti, sci-intr: Update bindings to drop the usage of gic as parent
  firmware: ti_sci: Add support for getting resource with subtype
  firmware: ti_sci: Drop unused structure ti_sci_rm_type_map
  firmware: ti_sci: Drop the device id to resource type translation
2020-08-30 11:56:54 -07:00
Linus Torvalds
0063a82de9 Merge tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
 "A single fix for the scheduler:

   - Make is_idle_task() __always_inline to prevent the compiler from
     putting it out of line into the wrong section because it's used
     inside noinstr sections"

* tag 'sched-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched: Use __always_inline on is_idle_task()
2020-08-30 11:50:53 -07:00
Linus Torvalds
b69bea8a65 Merge tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking fixes from Thomas Gleixner:
 "A set of fixes for lockdep, tracing and RCU:

   - Prevent recursion by using raw_cpu_* operations

   - Fixup the interrupt state in the cpu idle code to be consistent

   - Push rcu_idle_enter/exit() invocations deeper into the idle path so
     that the lock operations are inside the RCU watching sections

   - Move trace_cpu_idle() into generic code so it's called before RCU
     goes idle.

   - Handle raw_local_irq* vs. local_irq* operations correctly

   - Move the tracepoints out from under the lockdep recursion handling
     which turned out to be fragile and inconsistent"

* tag 'locking-urgent-2020-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  lockdep,trace: Expose tracepoints
  lockdep: Only trace IRQ edges
  mips: Implement arch_irqs_disabled()
  arm64: Implement arch_irqs_disabled()
  nds32: Implement arch_irqs_disabled()
  locking/lockdep: Cleanup
  x86/entry: Remove unused THUNKs
  cpuidle: Move trace_cpu_idle() into generic code
  cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic
  sched,idle,rcu: Push rcu_idle deeper into the idle path
  cpuidle: Fixup IRQ state
  lockdep: Use raw_cpu_*() for per-cpu variables
2020-08-30 11:43:50 -07:00
Linus Torvalds
8bb5021cc2 Merge tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:

 - Revert our removal of PROT_SAO, at least one user expressed an
   interest in using it on Power9. Instead don't allow it to be used in
   guests unless enabled explicitly at compile time.

 - A fix for a crash introduced by a recent change to FP handling.

 - Revert a change to our idle code that left Power10 with no idle
   support.

 - One minor fix for the new scv system call path to set PPR.

 - Fix a crash in our "generic" PMU if branch stack events were enabled.

 - A fix for the IMC PMU, to correctly identify host kernel samples.

 - The ADB_PMU powermac code was found to be incompatible with
   VMAP_STACK, so make them incompatible in Kconfig until the code can
   be fixed.

 - A build fix in drivers/video/fbdev/controlfb.c, and a documentation
   fix.

Thanks to Alexey Kardashevskiy, Athira Rajeev, Christophe Leroy,
Giuseppe Sacco, Madhavan Srinivasan, Milton Miller, Nicholas Piggin,
Pratik Rajesh Sampat, Randy Dunlap, Shawn Anastasio, Vaidyanathan
Srinivasan.

* tag 'powerpc-5.9-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/32s: Disable VMAP stack which CONFIG_ADB_PMU
  Revert "powerpc/powernv/idle: Replace CPU feature check with PVR check"
  powerpc/perf: Fix reading of MSR[HV/PR] bits in trace-imc
  powerpc/perf: Fix crashes with generic_compat_pmu & BHRB
  powerpc/64s: Fix crash in load_fp_state() due to fpexc_mode
  powerpc/64s: scv entry should set PPR
  Documentation/powerpc: fix malformed table in syscall64-abi
  video: fbdev: controlfb: Fix build for COMPILE_TEST=y && PPC_PMAC=n
  selftests/powerpc: Update PROT_SAO test to skip ISA 3.1
  powerpc/64s: Disallow PROT_SAO in LPARs by default
  Revert "powerpc/64s: Remove PROT_SAO support"
2020-08-30 10:56:12 -07:00
Linus Torvalds
c8b5563abe Merge tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
 "Two fixes for Xen: one needed for ongoing work to support virtio with
  Xen, and one for a corner case in IRQ handling with Xen"

* tag 'for-linus-5.9-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  arm/xen: Add misuse warning to virt_to_gfn
  xen/xenbus: Fix granting of vmalloc'd memory
  XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information.
2020-08-29 12:44:30 -07:00
Linus Torvalds
326e311b84 Merge tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
 "These fix the recently added Tegra194 cpufreq driver and the handling
  of devices using runtime PM during system-wide suspend, improve the
  intel_pstate driver documentation and clean up the cpufreq core.

  Specifics:

   - Make the recently added Tegra194 cpufreq driver use
     read_cpuid_mpir() instead of cpu_logical_map() to avoid exporting
     logical_cpu_map (Sumit Gupta).

   - Drop the automatic system wakeup event reporting for devices with
     pending runtime-resume requests during system-wide suspend to avoid
     spurious aborts of the suspend flow (Rafael Wysocki).

   - Fix build warning in the intel_pstate driver documentation and
     improve the wording in there (Randy Dunlap).

   - Clean up two pieces of code in the cpufreq core (Viresh Kumar)"

* tag 'pm-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpufreq: Use WARN_ON_ONCE() for invalid relation
  cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
  PM: sleep: core: Fix the handling of pending runtime resume requests
  Documentation: fix pm/intel_pstate build warning and wording
  cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
2020-08-28 13:12:09 -07:00
Rafael J. Wysocki
ef7d960403 Merge branch 'pm-cpufreq'
* pm-cpufreq:
  cpufreq: Use WARN_ON_ONCE() for invalid relation
  cpufreq: No need to verify cpufreq_driver in show_scaling_cur_freq()
  Documentation: fix pm/intel_pstate build warning and wording
  cpufreq: replace cpu_logical_map() with read_cpuid_mpir()
2020-08-28 20:58:16 +02:00
Herbert Xu
ef91bb196b kernel.h: Silence sparse warning in lower_32_bits
I keep getting sparse warnings in crypto such as:

  CHECK   drivers/crypto/ccree/cc_hash.c
   drivers/crypto/ccree/cc_hash.c:49:9: warning: cast truncates bits from constant value (47b5481dbefa4fa4 becomes befa4fa4)
   drivers/crypto/ccree/cc_hash.c:49:26: warning: cast truncates bits from constant value (db0c2e0d64f98fa7 becomes 64f98fa7)
   [.. many more ..]

This patch removes the warning by adding a mask to keep sparse
happy.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-28 11:21:20 -07:00
Linus Torvalds
e309428590 Merge tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull writeback fixes from Jan Kara:
 "Fixes for writeback code occasionally skipping writeback of some
  inodes or livelocking sync(2)"

* tag 'writeback_for_v5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  writeback: Drop I_DIRTY_TIME_EXPIRE
  writeback: Fix sync livelock due to b_dirty_time processing
  writeback: Avoid skipping inode writeback
  writeback: Protect inode->i_io_list with inode->i_lock
2020-08-28 10:57:14 -07:00
Linus Torvalds
b0bfd5eca9 Merge tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
 "We have an inode number handling change, prompted by s390x which is a
  64-bit architecture with a 32-bit ino_t, a patch to disallow leases to
  avoid potential data integrity issues when CephFS is re-exported via
  NFS or CIFS and a fix for the bulk of W=1 compilation warnings"

* tag 'ceph-for-5.9-rc3' of git://github.com/ceph/ceph-client:
  ceph: don't allow setlease on cephfs
  ceph: fix inode number handling on arches with 32-bit ino_t
  libceph: add __maybe_unused to DEFINE_CEPH_FEATURE
2020-08-28 10:33:04 -07:00
Linus Torvalds
5ec06b5c0d Merge tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "As expected a bit of an rc3 uptick, amdgpu and msm are the main ones,
  one msm patch was from the merge window, but had dependencies and we
  dropped it until the other tree had landed. Otherwise it's a couple of
  fixes for core, and etnaviv, and single i915, exynos, omap fixes.

  I'm still tracking the Sandybridge gpu relocations issue, if we don't
  see much movement I might just queue up the reverts. I'll talk to
  Daniel next week once he's back from holidays.

  core:
   - Take modeset bkl for legacy drivers

  dp_mst:
   - Allow null crtc in dp_mst

  i915:
   - Fix command parser desc matching with masks

  amdgpu:
   - Misc display fixes
   - Backlight fixes
   - MPO fix for DCN1
   - Fixes for Sienna Cichlid
   - Fixes for Navy Flounder
   - Vega SW CTF fixes
   - SMU fix for Raven
   - Fix a possible overflow in INFO ioctl
   - Gfx10 clockgating fix

  msm:
   - opp/bw scaling patch followup
   - frequency restoring fux
   - vblank in atomic commit fix
   - dpu modesetting fixes
   - fencing fix

  etnaviv:
   - scheduler interaction fix
   - gpu init regression fix

  exynos:
   - Just drop __iommu annotation to fix sparse warning

  omap:
   - locking state fix"

* tag 'drm-fixes-2020-08-28' of git://anongit.freedesktop.org/drm/drm: (41 commits)
  drm/amd/display: Fix memleak in amdgpu_dm_mode_config_init
  drm/amdgpu: disable runtime pm for navy_flounder
  drm/amd/display: Retry AUX write when fail occurs
  drm/amdgpu: Fix buffer overflow in INFO ioctl
  drm/amd/powerplay: Fix hardmins not being sent to SMU for RV
  drm/amdgpu: use MODE1 reset for navy_flounder by default
  drm/amd/pm: correct the thermal alert temperature limit settings
  drm/amdgpu: add asd fw check before loading asd
  drm/amd/display: Keep current gain when ABM disable immediately
  drm/amd/display: Fix passive dongle mistaken as active dongle in EDID emulation
  drm/amd/display: Revert HDCP disable sequence change
  drm/amd/display: Send DISPLAY_OFF after power down on boot
  drm/amdgpu/gfx10: refine mgcg setting
  drm/amd/pm: correct Vega20 swctf limit setting
  drm/amd/pm: correct Vega12 swctf limit setting
  drm/amd/pm: correct Vega10 swctf limit setting
  drm/amd/pm: set VCN pg per instances
  drm/amd/pm: enable run_btc callback for sienna_cichlid
  drivers: gpu: amd: Initialize amdgpu_dm_backlight_caps object to 0 in amdgpu_dm_update_backlight_caps
  drm/amd/display: Reject overlay plane configurations in multi-display scenarios
  ...
2020-08-28 09:46:48 -07:00
Viresh Kumar
30b8e6b22f cpufreq: Use WARN_ON_ONCE() for invalid relation
The relation can't be invalid here, so if it turns out to be invalid,
just WARN_ON_ONCE() and return 0.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-08-27 12:51:25 +02:00
Simon Leiner
9d3004bf7b arm/xen: Add misuse warning to virt_to_gfn
As virt_to_gfn uses virt_to_phys, it will return invalid addresses when
used with vmalloc'd addresses. This patch introduces a warning, when
virt_to_gfn is used in this way.

Signed-off-by: Simon Leiner <simon@leiner.me>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Link: https://lore.kernel.org/r/20200825093153.35500-2-simon@leiner.me
Signed-off-by: Juergen Gross <jgross@suse.com>
2020-08-27 08:58:51 +02:00
Nicholas Piggin
044d0d6de9 lockdep: Only trace IRQ edges
Problem:

  raw_local_irq_save(); // software state on
  local_irq_save(); // software state off
  ...
  local_irq_restore(); // software state still off, because we don't enable IRQs
  raw_local_irq_restore(); // software state still off, *whoopsie*

existing instances:

 - lock_acquire()
     raw_local_irq_save()
     __lock_acquire()
       arch_spin_lock(&graph_lock)
         pv_wait() := kvm_wait() (same or worse for Xen/HyperV)
           local_irq_save()

 - trace_clock_global()
     raw_local_irq_save()
     arch_spin_lock()
       pv_wait() := kvm_wait()
	 local_irq_save()

 - apic_retrigger_irq()
     raw_local_irq_save()
     apic->send_IPI() := default_send_IPI_single_phys()
       local_irq_save()

Possible solutions:

 A) make it work by enabling the tracing inside raw_*()
 B) make it work by keeping tracing disabled inside raw_*()
 C) call it broken and clean it up now

Now, given that the only reason to use the raw_* variant is because you don't
want tracing. Therefore A) seems like a weird option (although it can be done).
C) is tempting, but OTOH it ends up converting a _lot_ of code to raw just
because there is one raw user, this strips the validation/tracing off for all
the other users.

So we pick B) and declare any code that ends up doing:

	raw_local_irq_save()
	local_irq_save()
	lockdep_assert_irqs_disabled();

broken. AFAICT this problem has existed forever, the only reason it came
up is because commit: 859d069ee1 ("lockdep: Prepare for NMI IRQ
state tracking") changed IRQ tracing vs lockdep recursion and the
first instance is fairly common, the other cases hardly ever happen.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[rewrote changelog]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200723105615.1268126-1-npiggin@gmail.com
2020-08-26 12:41:56 +02:00
Peter Zijlstra
00b0ed2d49 locking/lockdep: Cleanup
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.546087214@infradead.org
2020-08-26 12:41:54 +02:00
Peter Zijlstra
bf9282dc26 cpuidle: Make CPUIDLE_FLAG_TLB_FLUSHED generic
This allows moving the leave_mm() call into generic code before
rcu_idle_enter(). Gets rid of more trace_*_rcuidle() users.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Link: https://lkml.kernel.org/r/20200821085348.369441600@infradead.org
2020-08-26 12:41:53 +02:00
Peter Zijlstra
fddf9055a6 lockdep: Use raw_cpu_*() for per-cpu variables
Sven reported that commit a21ee6055c ("lockdep: Change
hardirq{s_enabled,_context} to per-cpu variables") caused trouble on
s390 because their this_cpu_*() primitives disable preemption which
then lands back tracing.

On the one hand, per-cpu ops should use preempt_*able_notrace() and
raw_local_irq_*(), on the other hand, we can trivialy use raw_cpu_*()
ops for this.

Fixes: a21ee6055c ("lockdep: Change hardirq{s_enabled,_context} to per-cpu variables")
Reported-by: Sven Schnelle <svens@linux.ibm.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200821085348.192346882@infradead.org
2020-08-26 12:41:53 +02:00
Marco Elver
c94a88f341 sched: Use __always_inline on is_idle_task()
is_idle_task() may be used from noinstr functions such as
irqentry_enter(). Since the compiler is free to not inline regular
inline functions, switch to using __always_inline.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20200820172046.GA177701@elver.google.com
2020-08-26 12:41:51 +02:00
Maarten Lankhorst
2d9ad4cfaf Merge tag 'v5.9-rc2' into drm-misc-fixes
Backmerge requested by Tomi for a fix to omap inconsistent
locking state issue, and because we need at least v5.9-rc2 now.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-08-25 11:00:02 +02:00
Ilya Dryomov
f062f025fc libceph: add __maybe_unused to DEFINE_CEPH_FEATURE
Avoid -Wunused-const-variable warnings for "make W=1".

Reported-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
2020-08-24 10:33:08 +02:00
Shawn Anastasio
12564485ed Revert "powerpc/64s: Remove PROT_SAO support"
This reverts commit 5c9fa16e8a.

Since PROT_SAO can still be useful for certain classes of software,
reintroduce it. Concerns about guest migration for LPARs using SAO
will be addressed next.

Signed-off-by: Shawn Anastasio <shawn@anastas.io>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200821185558.35561-2-shawn@anastas.io
2020-08-24 14:12:53 +10:00
Gustavo A. R. Silva
df561f6688 treewide: Use fallthrough pseudo-keyword
Replace the existing /* fall through */ comments and its variants with
the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary
fall-through markings when it is the case.

[1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
2020-08-23 17:36:59 -05:00
Linus Torvalds
9d045ed1eb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
 "Nothing earth shattering here, lots of small fixes (f.e. missing RCU
  protection, bad ref counting, missing memset(), etc.) all over the
  place:

   1) Use get_file_rcu() in task_file iterator, from Yonghong Song.

   2) There are two ways to set remote source MAC addresses in macvlan
      driver, but only one of which validates things properly. Fix this.
      From Alvin Šipraga.

   3) Missing of_node_put() in gianfar probing, from Sumera
      Priyadarsini.

   4) Preserve device wanted feature bits across multiple netlink
      ethtool requests, from Maxim Mikityanskiy.

   5) Fix rcu_sched stall in task and task_file bpf iterators, from
      Yonghong Song.

   6) Avoid reset after device destroy in ena driver, from Shay
      Agroskin.

   7) Missing memset() in netlink policy export reallocation path, from
      Johannes Berg.

   8) Fix info leak in __smc_diag_dump(), from Peilin Ye.

   9) Decapsulate ECN properly for ipv6 in ipv4 tunnels, from Mark
      Tomlinson.

  10) Fix number of data stream negotiation in SCTP, from David Laight.

  11) Fix double free in connection tracker action module, from Alaa
      Hleihel.

  12) Don't allow empty NHA_GROUP attributes, from Nikolay Aleksandrov"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (46 commits)
  net: nexthop: don't allow empty NHA_GROUP
  bpf: Fix two typos in uapi/linux/bpf.h
  net: dsa: b53: check for timeout
  tipc: call rcu_read_lock() in tipc_aead_encrypt_done()
  net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow
  net: sctp: Fix negotiation of the number of data streams.
  dt-bindings: net: renesas, ether: Improve schema validation
  gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY
  hv_netvsc: Fix the queue_mapping in netvsc_vf_xmit()
  hv_netvsc: Remove "unlikely" from netvsc_select_queue
  bpf: selftests: global_funcs: Check err_str before strstr
  bpf: xdp: Fix XDP mode when no mode flags specified
  selftests/bpf: Remove test_align leftovers
  tools/resolve_btfids: Fix sections with wrong alignment
  net/smc: Prevent kernel-infoleak in __smc_diag_dump()
  sfc: fix build warnings on 32-bit
  net: phy: mscc: Fix a couple of spelling mistakes "spcified" -> "specified"
  libbpf: Fix map index used in error message
  net: gemini: Fix missing free_netdev() in error path of gemini_ethernet_port_probe()
  net: atlantic: Use readx_poll_timeout() for large timeout
  ...
2020-08-23 10:52:33 -07:00
David S. Miller
4af7b32f84 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Alexei Starovoitov says:

====================
pull-request: bpf 2020-08-21

The following pull-request contains BPF updates for your *net* tree.

We've added 11 non-merge commits during the last 5 day(s) which contain
a total of 12 files changed, 78 insertions(+), 24 deletions(-).

The main changes are:

1) three fixes in BPF task iterator logic, from Yonghong.

2) fix for compressed dwarf sections in vmlinux, from Jiri.

3) fix xdp attach regression, from Andrii.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-21 12:54:50 -07:00
Linus Torvalds
f22c5579a7 Merge tag 'riscv-for-linus-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:

 - The CLINT driver has been split in two: one to handle the M-mode
   CLINT (memory mapped and used on NOMMU systems) and one to handle the
   S-mode CLINT (via SBI).

 - The addition of SiFive's drivers to rv32_defconfig

* tag 'riscv-for-linus-5.9-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Add SiFive drivers to rv32_defconfig
  dt-bindings: timer: Add CLINT bindings
  RISC-V: Remove CLINT related code from timer and arch
  clocksource/drivers: Add CLINT timer driver
  RISC-V: Add mechanism to provide custom IPI operations
2020-08-21 12:32:42 -07:00
Tobias Klauser
b16fc097bc bpf: Fix two typos in uapi/linux/bpf.h
Also remove trailing whitespaces in bpf_skb_get_tunnel_key example code.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200821133642.18870-1-tklauser@distanz.ch
2020-08-21 12:26:17 -07:00
Linus Torvalds
d723b99ec9 Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o:
 "Improvements to ext4's block allocator performance for very large file
  systems, especially when the file system or files which are highly
  fragmented. There is a new mount option, prefetch_block_bitmaps which
  will pull in the block bitmaps and set up the in-memory buddy bitmaps
  when the file system is initially mounted.

  Beyond that, a lot of bug fixes and cleanups. In particular, a number
  of changes to make ext4 more robust in the face of write errors or
  file system corruptions"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits)
  ext4: limit the length of per-inode prealloc list
  ext4: reorganize if statement of ext4_mb_release_context()
  ext4: add mb_debug logging when there are lost chunks
  ext4: Fix comment typo "the the".
  jbd2: clean up checksum verification in do_one_pass()
  ext4: change to use fallthrough macro
  ext4: remove unused parameter of ext4_generic_delete_entry function
  mballoc: replace seq_printf with seq_puts
  ext4: optimize the implementation of ext4_mb_good_group()
  ext4: delete invalid comments near ext4_mb_check_limits()
  ext4: fix typos in ext4_mb_regular_allocator() comment
  ext4: fix checking of directory entry validity for inline directories
  fs: prevent BUG_ON in submit_bh_wbc()
  ext4: correctly restore system zone info when remount fails
  ext4: handle add_system_zone() failure in ext4_setup_system_zone()
  ext4: fold ext4_data_block_valid_rcu() into the caller
  ext4: check journal inode extents more carefully
  ext4: don't allow overlapping system zones
  ext4: handle error of ext4_setup_system_zone() on remount
  ext4: delete the invalid BUGON in ext4_mb_load_buddy_gfp()
  ...
2020-08-21 11:03:38 -07:00
Anup Patel
2ac6795fcc clocksource/drivers: Add CLINT timer driver
We add a separate CLINT timer driver for Linux RISC-V M-mode (i.e.
RISC-V NoMMU kernel).

The CLINT MMIO device provides three things:
1. 64bit free running counter register
2. 64bit per-CPU time compare registers
3. 32bit per-CPU inter-processor interrupt registers

Unlike other timer devices, CLINT provides IPI registers along with
timer registers. To use CLINT IPI registers, the CLINT timer driver
provides IPI related callbacks to arch/riscv.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Tested-by: Emil Renner Berhing <kernel@esmil.dk>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-08-20 10:57:29 -07:00
Linus Torvalds
d271b51c60 Merge tag 'dma-mapping-5.9-1' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping fixes from Christoph Hellwig:
 "Fix more fallout from the dma-pool changes (Nicolas Saenz Julienne,
  me)"

* tag 'dma-mapping-5.9-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-pool: Only allocate from CMA when in same memory zone
  dma-pool: fix coherent pool allocations for IOMMU mappings
2020-08-20 10:48:17 -07:00
brookxu
27bc446e2d ext4: limit the length of per-inode prealloc list
In the scenario of writing sparse files, the per-inode prealloc list may
be very long, resulting in high overhead for ext4_mb_use_preallocated().
To circumvent this problem, we limit the maximum length of per-inode
prealloc list to 512 and allow users to modify it.

After patching, we observed that the sys ratio of cpu has dropped, and
the system throughput has increased significantly. We created a process
to write the sparse file, and the running time of the process on the
fixed kernel was significantly reduced, as follows:

Running time on unfixed kernel:
[root@TENCENT64 ~]# time taskset 0x01 ./sparse /data1/sparce.dat
real    0m2.051s
user    0m0.008s
sys     0m2.026s

Running time on fixed kernel:
[root@TENCENT64 ~]# time taskset 0x01 ./sparse /data1/sparce.dat
real    0m0.471s
user    0m0.004s
sys     0m0.395s

Signed-off-by: Chunguang Xu <brookxu@tencent.com>
Link: https://lore.kernel.org/r/d7a98178-056b-6db5-6bce-4ead23f4a257@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2020-08-19 12:04:36 -04:00
Xin Long
4ef1a7cb08 ipv6: some fixes for ipv6_dev_find()
This patch is to do 3 things for ipv6_dev_find():

  As David A. noticed,

  - rt6_lookup() is not really needed. Different from __ip_dev_find(),
    ipv6_dev_find() doesn't have a compatibility problem, so remove it.

  As Hideaki suggested,

  - "valid" (non-tentative) check for the address is also needed.
    ipv6_chk_addr() calls ipv6_chk_addr_and_flags(), which will
    traverse the address hash list, but it's heavy to be called
    inside ipv6_dev_find(). This patch is to reuse the code of
    ipv6_chk_addr_and_flags() for ipv6_dev_find().

  - dev parameter is passed into ipv6_dev_find(), as link-local
    addresses from user space has sin6_scope_id set and the dev
    lookup needs it.

Fixes: 81f6cb3122 ("ipv6: add ipv6_dev_find()")
Suggested-by: YOSHIFUJI Hideaki <hideaki.yoshifuji@miraclelinux.com>
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-18 15:58:53 -07:00
Linus Torvalds
9899b58758 Merge tag 'fixes-2020-08-18' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock
Pull ia64 page table fix from Mike Rapoport:
 "Fix regression in IA-64 caused by page table allocation refactoring

  The refactoring and consolidation of <asm/pgalloc.h> caused regression
  on parisc and ia64. The fix for parisc made it into v5.9-rc1 while the
  fix ia64 got delayed a bit and here it is"

* tag 'fixes-2020-08-18' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  arch/ia64: Restore arch-specific pgd_offset_k implementation
2020-08-18 12:05:46 -07:00
Linus Torvalds
4cf7562190 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:
 "Another batch of fixes:

  1) Remove nft_compat counter flush optimization, it generates warnings
     from the refcount infrastructure. From Florian Westphal.

  2) Fix BPF to search for build id more robustly, from Jiri Olsa.

  3) Handle bogus getopt lengths in ebtables, from Florian Westphal.

  4) Infoleak and other fixes to j1939 CAN driver, from Eric Dumazet and
     Oleksij Rempel.

  5) Reset iter properly on mptcp sendmsg() error, from Florian
     Westphal.

  6) Show a saner speed in bonding broadcast mode, from Jarod Wilson.

  7) Various kerneldoc fixes in bonding and elsewhere, from Lee Jones.

  8) Fix double unregister in bonding during namespace tear down, from
     Cong Wang.

  9) Disable RP filter during icmp_redirect selftest, from David Ahern"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (75 commits)
  otx2_common: Use devm_kcalloc() in otx2_config_npa()
  net: qrtr: fix usage of idr in port assignment to socket
  selftests: disable rp_filter for icmp_redirect.sh
  Revert "net: xdp: pull ethernet header off packet after computing skb->protocol"
  phylink: <linux/phylink.h>: fix function prototype kernel-doc warning
  mptcp: sendmsg: reset iter on error redux
  net: devlink: Remove overzealous WARN_ON with snapshots
  tipc: not enable tipc when ipv6 works as a module
  tipc: fix uninit skb->data in tipc_nl_compat_dumpit()
  net: Fix potential wrong skb->protocol in skb_vlan_untag()
  net: xdp: pull ethernet header off packet after computing skb->protocol
  ipvlan: fix device features
  bonding: fix a potential double-unregister
  can: j1939: add rxtimer for multipacket broadcast session
  can: j1939: abort multipacket broadcast session when timeout occurs
  can: j1939: cancel rxtimer on multipacket broadcast session complete
  can: j1939: fix support for multipacket broadcast message
  net: fddi: skfp: cfm: Remove seemingly unused variable 'ID_sccs'
  net: fddi: skfp: cfm: Remove set but unused variable 'oldstate'
  net: fddi: skfp: smt: Remove seemingly unused variable 'ID_sccs'
  ...
2020-08-17 17:09:50 -07:00
Jessica Clarke
bd05220c7b arch/ia64: Restore arch-specific pgd_offset_k implementation
IA-64 is special and treats pgd_offset_k() differently to pgd_offset(),
using different formulae to calculate the indices into the kernel and user
PGDs.  The index into the user PGDs takes into account the region number,
but the index into the kernel (init_mm) PGD always assumes a predefined
kernel region number. Commit 974b9b2c68 ("mm: consolidate pte_index() and
pte_offset_*() definitions") made IA-64 use a generic pgd_offset_k() which
incorrectly used pgd_index() for kernel page tables.  As a result, the
index into the kernel PGD was going out of bounds and the kernel hung
during early boot.

Allow overrides of pgd_offset_k() and override it on IA-64 with the old
implementation that will correctly index the kernel PGD.

Fixes: 974b9b2c68 ("mm: consolidate pte_index() and pte_offset_*() definitions")
Reported-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
2020-08-17 21:50:54 +03:00
Randy Dunlap
0b76e642f9 phylink: <linux/phylink.h>: fix function prototype kernel-doc warning
Fix a kernel-doc warning for the pcs_config() function prototype:

../include/linux/phylink.h:406: warning: Excess function parameter 'permit_pause_to_mac' description in 'pcs_config'

Fixes: 7137e18f6f ("net: phylink: add struct phylink_pcs")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-17 11:46:22 -07:00
Daniel Vetter
77ef38574b drm/modeset-lock: Take the modeset BKL for legacy drivers
This fell off in the conversion in

commit 9bcaa3fe58
Author: Michal Orzel <michalorzel.eng@gmail.com>
Date:   Tue Apr 28 19:10:04 2020 +0200

    drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers

but it's caught by the drm_warn_on_modeset_not_all_locked() that the
legacy modeset code uses. Since this is the bkl and it's unclear
what's all protected, play it safe and grab it again for legacy
drivers.

Unfortunately this means we need to sprinkle a few more #includes
around.

Also we need to add the drm_device as a parameter to the _END macro.

Finally remove the mute_lock() from setcrtc, since that's now done by
the macro.

Cc: Alex Deucher <alexdeucher@gmail.com>
References: https://gitlab.freedesktop.org/drm/amd/-/issues/1224
Fixes: 9bcaa3fe58 ("drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers")
Cc: Michal Orzel <michalorzel.eng@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.8+
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200814093842.3048472-1-daniel.vetter@ffwll.ch
2020-08-17 13:41:50 -04:00
David Howells
29e44f4535 watch_queue: Limit the number of watches a user can hold
Impose a limit on the number of watches that a user can hold so that
they can't use this mechanism to fill up all the available memory.

This is done by putting a counter in user_struct that's incremented when
a watch is allocated and decreased when it is released.  If the number
exceeds the RLIMIT_NOFILE limit, the watch is rejected with EAGAIN.

This can be tested by the following means:

 (1) Create a watch queue and attach it to fd 5 in the program given - in
     this case, bash:

	keyctl watch_session /tmp/nlog /tmp/gclog 5 bash

 (2) In the shell, set the maximum number of files to, say, 99:

	ulimit -n 99

 (3) Add 200 keyrings:

	for ((i=0; i<200; i++)); do keyctl newring a$i @s || break; done

 (4) Try to watch all of the keyrings:

	for ((i=0; i<200; i++)); do echo $i; keyctl watch_add 5 %:a$i || break; done

     This should fail when the number of watches belonging to the user hits
     99.

 (5) Remove all the keyrings and all of those watches should go away:

	for ((i=0; i<200; i++)); do keyctl unlink %:a$i; done

 (6) Kill off the watch queue by exiting the shell spawned by
     watch_session.

Fixes: c73be61ced ("pipe: Add general notification queue support")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-08-17 09:39:18 -07:00
David S. Miller
8c26544f5a Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf
Pablo Neira Ayuso says:

====================
Netfilter fixes for net

The following patchset contains Netfilter fixes for net:

1) Endianness issue in IPv4 option support in nft_exthdr,
   from Stephen Suryaputra.

2) Removes the waitcount optimization in nft_compat,
   from Florian Westphal.

3) Remove ipv6 -> nf_defrag_ipv6 module dependency, from
   Florian Westphal.

4) Memleak in chain binding support, also from Florian.

5) Simplify nft_flowtable.sh selftest, from Fabian Frederick.

6) Optional MTU arguments for selftest nft_flowtable.sh,
   also from Fabian.

7) Remove noise error report when killing process in
   selftest nft_flowtable.sh, from Fabian Frederick.

8) Reject bogus getsockopt option length in ebtables,
   from Florian Westphal.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2020-08-16 16:05:36 -07:00
Lokesh Vutla
53bf2b0e4e firmware: ti_sci: Add support for getting resource with subtype
With SYSFW ABI 3.0 changes, interrupts coming out of an interrupt
controller is identified by a type and it is consistent across SoCs.
Similarly global events for Interrupt aggregator. So add an API to get
resource range using a resource type.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Nishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20200806074826.24607-4-lokeshvutla@ti.com
2020-08-16 22:00:22 +01:00
Linus Torvalds
2cc3c4b3c2 Merge tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
 "A few differerent things in here.

  Seems like syzbot got some more io_uring bits wired up, and we got a
  handful of reports and the associated fixes are in here.

  General fixes too, and a lot of them marked for stable.

  Lastly, a bit of fallout from the async buffered reads, where we now
  more easily trigger short reads. Some applications don't really like
  that, so the io_read() code now handles short reads internally, and
  got a cleanup along the way so that it's now easier to read (and
  documented). We're now passing tests that failed before"

* tag 'io_uring-5.9-2020-08-15' of git://git.kernel.dk/linux-block:
  io_uring: short circuit -EAGAIN for blocking read attempt
  io_uring: sanitize double poll handling
  io_uring: internally retry short reads
  io_uring: retain iov_iter state over io_read/io_write calls
  task_work: only grab task signal lock when needed
  io_uring: enable lookup of links holding inflight files
  io_uring: fail poll arm on queue proc failure
  io_uring: hold 'ctx' reference around task_work queue + execute
  fs: RWF_NOWAIT should imply IOCB_NOIO
  io_uring: defer file table grabbing request cleanup for locked requests
  io_uring: add missing REQ_F_COMP_LOCKED for nested requests
  io_uring: fix recursive completion locking on oveflow flush
  io_uring: use TWA_SIGNAL for task_work uncondtionally
  io_uring: account locked memory before potential error case
  io_uring: set ctx sq/cq entry count earlier
  io_uring: Fix NULL pointer dereference in loop_rw_iter()
  io_uring: add comments on how the async buffered read retry works
  io_uring: io_async_buf_func() need not test page bit
2020-08-16 10:55:12 -07:00