drm/amdgpu: Add IP block soft reset as a GPU recovery method

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Implement IP block soft reset as a recovery method that fits into
the current GPU recovery code as opposed to being hacked into the
full GPU reset code path.

This can gracefully handle GPU hangs when other reset methods
are not available or have failed. It makes sure to minimize
collateral damage (ie. affected non-guilty jobs) and does a
backup and restore on all affected queues.

Note that some of the new helpers may be useful for other
reset types as well, which we can explore later.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Timur Kristóf 2026-06-17 21:14:22 +02:00 • committed by Alex Deucher

parent b7500532e1

commit 1fc76380c6

7 changed files with 354 additions and 0 deletions

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2

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

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6

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

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154

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

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5

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

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11

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

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171

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

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5

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

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