drm/amdgpu: track ring state associated with a fence

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We need to know the wptr and sequence number associated
with a fence so that we can re-emit the unprocessed state
after a ring reset.  Pre-allocate storage space for
the ring buffer contents and add helpers to save off
and re-emit the unprocessed state so that it can be
re-emitted after the queue is reset.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Alex Deucher 2025-05-27 21:35:00 -04:00

parent bc29c03b28

commit 77cc0da39c

6 changed files with 195 additions and 3 deletions

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90

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

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15

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

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4

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

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67

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

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18

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

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4

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

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