drm/amdgpu/gfx12: Refactor compute pipe reset and add HQD cleanup

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Refactor gfx_v12_0_reset_compute_pipe() to accept explicit me, pipe, and
queue parameters instead of deriving them from the ring structure. This
enables the function to be used in generic pipe reset flows.

Introduce gfx_v12_0_clear_hqds_on_mec_pipe() to properly clear
CP_HQD_ACTIVE and CP_HQD_DEQUEUE_REQUEST for all queues on a given MEC
pipe while the pipe reset is asserted, ensuring the HQDs are torn down
correctly before deasserting reset.

Switch the KCQ reset path to use the common MEC pipe reset helper
amdgpu_gfx_mec_pipe_reset_run(), which coordinates the reset sequence
including KFD suspend/resume to avoid conflicts with user mode queues.

v2: just update the sequence (Alex)
v3: directly clear ACTIVE and DEQUEUE_REQUEST (Shaoyun Liu)

Suggested-by:  Manu Rastogi <manu.rastogi@amd.com>
Suggested-by:  Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Jesse Zhang <jesse.zhang@amd.com>
Reviewed-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Shaoyun Liu <shaoyun.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Jesse Zhang 2026-04-14 16:58:52 +08:00 • committed by Alex Deucher

parent 5adb005e26

commit 2c476a67c6

1 changed files with 66 additions and 46 deletions

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drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c

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