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drm/amdgpu/gfx8: align mqd settings with KFD

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Make sure to set the quantum bits in the compute MQD
for better fairness across queues of the same priority.

Reviewed-by: Jesse Zhang <jesse.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2026-02-18 14:31:17 -05:00
parent 57901bbe43
commit 91cf34bc5a
1 changed files with 5 additions and 1 deletions
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6
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
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@ -4532,7 +4532,11 @@ static int gfx_v8_0_mqd_init(struct amdgpu_ring *ring)
/* set static priority for a queue/ring */
gfx_v8_0_mqd_set_priority(ring, mqd);
mqd->cp_hqd_quantum = RREG32(mmCP_HQD_QUANTUM);
tmp = RREG32(mmCP_HQD_QUANTUM);
tmp = REG_SET_FIELD(tmp, CP_HQD_QUANTUM, QUANTUM_EN, 1);
tmp = REG_SET_FIELD(tmp, CP_HQD_QUANTUM, QUANTUM_SCALE, 1);
tmp = REG_SET_FIELD(tmp, CP_HQD_QUANTUM, QUANTUM_DURATION, 10);
mqd->cp_hqd_quantum = tmp;
/* map_queues packet doesn't need activate the queue,
* so only kiq need set this field.