5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mario Limonciello <mario.limonciello@xxxxxxx> [ Upstream commit 256df20c590bf0e4d63ac69330cf23faddac3e08 ] Hewlett-Packard HP Pavilion 17 Notebook PC/1972 is an Intel Ivy Bridge system with a muxless AMD Radeon dGPU. Attempting to use the dGPU fails with the following sequence: ACPI Error: Aborting method \AMD3._ON due to previous error (AE_AML_LOOP_TIMEOUT) (20230628/psparse-529) radeon 0000:01:00.0: not ready 1023ms after resume; waiting radeon 0000:01:00.0: not ready 2047ms after resume; waiting radeon 0000:01:00.0: not ready 4095ms after resume; waiting radeon 0000:01:00.0: not ready 8191ms after resume; waiting radeon 0000:01:00.0: not ready 16383ms after resume; waiting radeon 0000:01:00.0: not ready 32767ms after resume; waiting radeon 0000:01:00.0: not ready 65535ms after resume; giving up radeon 0000:01:00.0: Unable to change power state from D3cold to D0, device inaccessible The issue is that the Root Port the dGPU is connected to can't handle the transition from D3cold to D0 so the dGPU can't properly exit runtime PM. The existing logic in pci_bridge_d3_possible() checks for systems that are newer than 2015 to decide that D3 is safe. This would nominally work for an Ivy Bridge system (which was discontinued in 2015), but this system appears to have continued to receive BIOS updates until 2017 and so this existing logic doesn't appropriately capture it. Add the system to bridge_d3_blacklist to prevent D3cold from being used. Link: https://lore.kernel.org/r/20240307163709.323-1-mario.limonciello@xxxxxxx Reported-by: Eric Heintzmann <heintzmann.eric@xxxxxxx> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3229 Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx> Tested-by: Eric Heintzmann <heintzmann.eric@xxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- drivers/pci/pci.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 36f1e604191e5..67216f4ea2151 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2901,6 +2901,18 @@ static const struct dmi_system_id bridge_d3_blacklist[] = { DMI_MATCH(DMI_BOARD_VERSION, "Continental Z2"), }, }, + { + /* + * Changing power state of root port dGPU is connected fails + * https://gitlab.freedesktop.org/drm/amd/-/issues/3229 + */ + .ident = "Hewlett-Packard HP Pavilion 17 Notebook PC/1972", + .matches = { + DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_BOARD_NAME, "1972"), + DMI_MATCH(DMI_BOARD_VERSION, "95.33"), + }, + }, #endif { } }; -- 2.43.0
