From 40d2aeac8a184eaa01fb73744e577bc276d23855 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 18 Feb 2026 14:21:52 -0500 Subject: [PATCH] drm/amdgpu/gfx12: align mqd settings with KFD Make sure to set the quantum bits in the compute MQD for better fairness across queues of the same priority. Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c index 65c33823a688f..60f0c7d6a7a37 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_0.c @@ -3268,6 +3268,11 @@ static int gfx_v12_0_compute_mqd_init(struct amdgpu_device *adev, void *m, mqd->cp_hqd_pipe_priority = prop->hqd_pipe_priority; mqd->cp_hqd_queue_priority = prop->hqd_queue_priority; + tmp = REG_SET_FIELD(0, 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, 1); + mqd->cp_hqd_quantum = tmp; + mqd->cp_hqd_active = prop->hqd_active; /* set UQ fenceaddress */ -- 2.47.3