drm/amdgpu: Fix consecutive DPC recovery failures.

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Cache the PCI state on boot and before each case where we might
loose it.

v2: Add pci_restore_state while caching the PCI state to avoid
breaking PCI core logic for stuff like suspend/resume.

v3: Extract pci_restore_state from amdgpu_device_cache_pci_state
to avoid superflous restores during GPU resets and suspend/resumes.

v4: Style fixes.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Andrey Grodzovsky 2020-08-24 12:30:47 -04:00 • committed by Alex Deucher

parent 362c7b91c1

commit c1dd4aa624

5 changed files with 70 additions and 9 deletions

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5

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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62

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

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4

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

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4

drivers/gpu/drm/amd/amdgpu/nv.c

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4

drivers/gpu/drm/amd/amdgpu/soc15.c

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