drm/amdgpu/gfx: add a shared gfx pipe reset helper

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Serialize GFX recovery with mec.reset_mutex and attempt MES suspend
before locating a user HQD. Back up collateral kernel rings before reset,
then resume MES before testing and replaying rebuilt rings.

Allow reset to proceed if suspend fails. Always attempt resume, report
reset or resume errors, and leave schedulers stopped on failure.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jesse Zhang 2026-09-17 10:50:25 +08:00 • committed by Alex Deucher

parent ac3477ac78

commit aa1a19e18e

2 changed files with 129 additions and 1 deletions

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114

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

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16

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

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