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drm/amd: Enable PCIe PME from D3

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commit 6967741d26c87300a51b5e50d4acd104bc1a9759 upstream.

When dGPU is put into BOCO it may be in D3cold but still able send
PME on display hotplug event. For this to work it must be enabled
as wake source from D3.

When runpm is enabled use pci_wake_from_d3() to mark wakeup as
enabled by default.

Cc: stable@vger.kernel.org # 6.1+
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mario Limonciello 2023-11-24 09:56:32 -06:00 • committed by Greg Kroah-Hartman
parent cebccbe801
commit c608842963
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
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@ -2200,6 +2200,8 @@ retry_init:
pm_runtime_mark_last_busy(ddev->dev);
pm_runtime_put_autosuspend(ddev->dev);
pci_wake_from_d3(pdev, TRUE);
/*
* For runpm implemented via BACO, PMFW will handle the
* timing for BACO in and out: