Khalid Aziz 2a038881b6 PCI: Disable Bus Master only on kexec reboot ...

commit 4fc9bbf98f upstream.

Add a flag to tell the PCI subsystem that kernel is shutting down in
preparation to kexec a kernel.  Add code in PCI subsystem to use this flag
to clear Bus Master bit on PCI devices only in case of kexec reboot.

This fixes a power-off problem on Acer Aspire V5-573G and likely other
machines and avoids any other issues caused by clearing Bus Master bit on
PCI devices in normal shutdown path.  The problem was introduced by
b566a22c23 ("PCI: disable Bus Master on PCI device shutdown").

This patch is based on discussion at
http://marc.info/?l=linux-pci&m=138425645204355&w=2

Link: https://bugzilla.kernel.org/show_bug.cgi?id=63861
Reported-by: Chang Liu <cl91tp@gmail.com>
Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Konstantin Khlebnikov <koct9i@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-12-20 07:45:08 -08:00

..

hotplug

PCI: pciehp: Fix null pointer deref when hot-removing SR-IOV device

2013-08-11 18:35:24 -07:00

pcie

PCI: Remove duplicate pci_disable_device() from pcie_portdrv_remove()

2013-12-04 10:57:04 -08:00

access.c

PCI: Support PCIe Capability Slot registers only for ports with slots

2013-11-29 11:11:42 -08:00

ats.c

Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci

2012-01-11 18:50:26 -08:00

bus.c

PCI: Delay final fixups until resources are assigned

2013-05-07 14:35:44 -06:00

host-bridge.c

PCI: add host bridge release support

2012-04-30 14:52:43 -06:00

hotplug-pci.c

PCI: hotplug: remove pci_do_scan_bus()

2012-06-13 15:42:27 -06:00

htirq.c

pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE

2011-10-31 19:31:22 -04:00

ioapic.c

Merge tag 'for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

2012-12-13 12:14:47 -08:00

iov.c

PCI: Finish SR-IOV VF setup before adding the device

2013-07-21 18:21:30 -07:00

irq.c

PCI: Convert dev_printk(KERN_<LEVEL> to dev_<level>(

2012-11-07 15:24:18 -07:00

Kconfig

PCI: Drop bogus default from ARCH_SUPPORTS_MSI

2012-09-10 16:49:52 -06:00

Makefile

PCI: Always build setup-bus when PCI is enabled

2012-11-28 13:00:58 -08:00

msi.c

PCI: Set ->mask_pos correctly

2013-04-30 08:49:19 -07:00

of.c

PCI: OF: Don't crash when bridge parent is NULL.

2011-08-19 08:51:37 -07:00

pci-acpi.c

PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup

2013-10-01 09:17:45 -07:00

pci-driver.c

PCI: Disable Bus Master only on kexec reboot

2013-12-20 07:45:08 -08:00

pci-label.c

switch ->is_visible() to returning umode_t

2012-01-03 22:54:55 -05:00

pci-stub.c

PCI: Convert dev_printk(KERN_<LEVEL> to dev_<level>(

2012-11-07 15:24:18 -07:00

pci-sysfs.c

PCI: Use vma_pages() to replace (vm_end - vm_start) >> PAGE_SHIFT

2013-04-15 14:30:44 -06:00

pci.c

Merge branch 'pci/rafael-pm' into next

2013-04-17 10:43:16 -06:00

pci.h

PCI / ACPI: Use boot-time resource allocation rules during hotplug

2013-06-23 01:01:35 +02:00

probe.c

PCI: Fix refcount issue in pci_create_root_bus() error recovery path

2013-07-21 18:21:30 -07:00

proc.c

proc: Supply a function to remove a proc entry by PDE

2013-05-01 17:29:46 -04:00

quirks.c

ahci: Add AMD CZ SATA device ID

2013-07-21 18:21:30 -07:00

remove.c

PCI: Add pcibios hooks for adding and removing PCI buses

2013-04-12 15:38:25 -06:00

rom.c

PCI: Add PCI ROM helper for platform-provided ROM images

2013-03-26 17:19:41 -06:00

search.c

PCI: Fix reference count leak in pci_dev_present()

2013-01-25 13:49:27 -07:00

setup-bus.c

PCI: Retry allocation of only the resource type that failed

2013-08-11 18:35:24 -07:00

setup-irq.c

PCI: Provide a default pcibios_update_irq()

2012-09-18 17:28:21 -06:00

setup-res.c

PCI: Remove unused variables

2013-04-15 10:56:27 -06:00

slot.c

PCI: Warn about failures instead of "must_check" functions

2013-04-17 10:21:12 -06:00

syscall.c

…

vpd.c

pci: Fix files needing export.h for EXPORT_SYMBOL/THIS_MODULE

2011-10-31 19:31:22 -04:00

xen-pcifront.c

xen/pcifront: Deal with toolstack missing 'XenbusStateClosing' state.

2013-07-21 18:21:27 -07:00