drm/amdgpu: process RAS fatal error MB notification

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For RAS error scenario, VF guest driver will check mailbox
and set fed flag to avoid unnecessary HW accesses.
additionally, poll for reset completion message first
to avoid accidentally spamming multiple reset requests to host.

v2: add another mailbox check for handling case where kfd detects
timeout first

v3: set host_flr bit and use wait_for_reset

Signed-off-by: Vignesh Chander <Vignesh.Chander@amd.com>
Reviewed-by: Zhigang Luo <Zhigang.Luo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Vignesh Chander 2024-06-24 16:44:26 -05:00 • committed by Alex Deucher

parent 78146c1dcd

commit cbda2758d8

7 changed files with 55 additions and 8 deletions

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9

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

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25

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

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4

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

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8

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

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4

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

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8

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

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5

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

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