drm/amdgpu: Modify indirect buffer packages for resubmission

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When the preempted IB frame resubmitted to cp, we need to modify the frame
data including:
1. set PRE_RESUME 1 in CONTEXT_CONTROL.
2. use meta data(DE and CE) read from CSA in WRITE_DATA.

Add functions to save the location the first time IBs emitted and callback
to patch the package when resubmission happens.

Signed-off-by: Jiadong Zhu <Jiadong.Zhu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Jiadong Zhu 2023-05-25 16:52:55 +08:00 • committed by Alex Deucher

parent f2bcc0c7db

commit 8ff865be93

4 changed files with 102 additions and 0 deletions

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18

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

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9

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

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60

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

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15

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

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