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linux/drivers/pci/pcie
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Kai-Heng Feng c7cc4152c0 PCI/AER: Disable AER service on suspend 
[ Upstream commit 5afc2f763e ]

If the link is powered off during suspend, electrical noise may cause
errors that are logged via AER.  If the AER interrupt is enabled and shares
an IRQ with PME, that causes a spurious wakeup during suspend.

Disable the AER interrupt during suspend to prevent this.  Clear error
status before re-enabling IRQ interrupts during resume so we don't get an
interrupt for errors that occurred during the suspend/resume process.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=209149
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216295
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218090
Link: https://lore.kernel.org/r/20240416043225.1462548-2-kai.heng.feng@canonical.com
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
[bhelgaas: drop pci_ancestor_pr3_present() etc, commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-12-27 13:58:42 +01:00
..
aer.c PCI/AER: Disable AER service on suspend 2024-12-27 13:58:42 +01:00
aer_inject.c PCI/AER: Update aer-inject URL 2022-03-02 11:26:17 -06:00
aspm.c PCI/ASPM: Fix deadlock when enabling ASPM 2024-04-27 17:11:44 +02:00
dpc.c PCI/DPC: Use FIELD_GET() 2024-04-27 17:11:36 +02:00
edr.c PCI/EDR: Align EDR_PORT_LOCATE_DSM with PCI Firmware r3.3 2024-06-12 11:12:27 +02:00
err.c PCI/AER: Block runtime suspend when handling errors 2024-04-03 15:28:28 +02:00
Kconfig PCI: pciehp: Enable by default if USB4 enabled 2022-11-15 09:25:21 -06:00
Makefile PCI/portdrv: Squash into portdrv.c 2022-10-24 14:57:30 -05:00
pme.c PCI/PME: Use PCI_POSSIBLE_ERROR() to check config reads 2021-11-18 14:13:18 -06:00
portdrv.c PCI/portdrv: Prevent LS7A Bus Master clearing on shutdown 2023-02-01 12:05:28 -06:00
portdrv.h PCI/AER: Export pcie_aer_is_native() 2023-09-11 15:24:16 -07:00
ptm.c PCI/PTM: Reorder functions in logical order 2022-09-12 15:29:52 -05:00
rcec.c PCI/RCEC: Fix RCiEP device to RCEC association 2021-03-10 15:10:46 -06:00