linux_dsm_epyc7002/drivers/pci
Rafael J. Wysocki 5839ee7389 PCI / PM: Force devices to D0 in pci_pm_thaw_noirq()
It is incorrect to call pci_restore_state() for devices in low-power
states (D1-D3), as that involves the restoration of MSI setup which
requires MMIO to be operational and that is only the case in D0.

However, pci_pm_thaw_noirq() may do that if the driver's "freeze"
callbacks put the device into a low-power state, so fix it by making
it force devices into D0 via pci_set_power_state() instead of trying
to "update" their power state which is pointless.

Fixes: e60514bd44 (PCI/PM: Restore the status of PCI devices across hibernation)
Cc: 4.13+ <stable@vger.kernel.org> # 4.13+
Reported-by: Thomas Gleixner <tglx@linutronix.de>
Reported-by: Maarten Lankhorst <dev@mblankhorst.nl>
Tested-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Maarten Lankhorst <dev@mblankhorst.nl>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
2017-12-18 12:06:07 +01:00
..
dwc pci-v4.15-changes 2017-11-15 15:01:28 -08:00
endpoint PCI: endpoint: make config_item_type const 2017-10-19 16:15:25 +02:00
host PCI: rcar: Fix use-after-free in probe error path 2017-12-12 11:01:47 -06:00
hotplug pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pcie pci-v4.15-changes 2017-11-15 15:01:28 -08:00
switch Support for the switchtec ntb and related changes. Also, a couple of 2017-11-19 20:41:53 -10:00
access.c PCI: Provide Kconfig option for lockless config space accessors 2017-06-28 22:32:56 +02:00
ats.c PCI: Restore PRI and PASID state after Function-Level Reset 2017-05-30 15:40:50 -05:00
bus.c
ecam.c PCI: ECAM: Map config region with pci_remap_cfgspace() 2017-04-24 13:53:14 -05:00
host-bridge.c
iov.c PCI: Restore ARI Capable Hierarchy before setting numVFs 2017-10-10 19:15:29 -05:00
irq.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-26 14:11:54 -08:00
Makefile Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2017-11-26 14:11:54 -08:00
mmap.c PCI: Add I/O BAR support to generic pci_mmap_resource_range() 2017-04-20 08:47:47 -05:00
msi.c PCI/MSI: Set MSI_FLAG_MUST_REACTIVATE in core code 2017-10-18 15:38:31 +02:00
of.c
pci-acpi.c ACPI / PCI: Bail early in acpi_pci_add_bus() if there is no ACPI handle 2017-10-05 15:48:54 -05:00
pci-driver.c PCI / PM: Force devices to D0 in pci_pm_thaw_noirq() 2017-12-18 12:06:07 +01:00
pci-label.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
pci-mid.c PCI / PM: Simplify device wakeup settings code 2017-06-28 01:52:45 +02:00
pci-stub.c
pci-sysfs.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pci.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
pci.h pci-v4.15-changes 2017-11-15 15:01:28 -08:00
probe.c PCI: Distribute available buses to hotplug-capable bridges 2017-11-06 18:48:59 -06:00
proc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
quirks.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
remove.c PCI: Detach driver before procfs & sysfs teardown on device remove 2017-10-25 08:47:10 -05:00
rom.c PCI: Fail pci_map_rom() if the option ROM is invalid 2017-11-08 14:47:07 -06:00
search.c PCI: Add device flag PCI_DEV_FLAGS_BRIDGE_XLATE_ROOT 2017-04-13 18:49:50 -05:00
setup-bus.c Merge branch 'pci/resource' into next 2017-11-14 12:11:25 -06:00
setup-irq.c PCI: Inline and remove pcibios_update_irq() 2017-08-10 12:49:57 -05:00
setup-res.c pci-v4.15-changes 2017-11-15 15:01:28 -08:00
slot.c
syscall.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vc.c
vpd.c
xen-pcifront.c