From 2947543fed4008a6198b638bec68740b368e4cb1 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 18 Feb 2026 14:30:43 -0500 Subject: [PATCH] drm/amdgpu/gfx10: 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_v10_0.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 8b60299b73ef..58c69dcb527f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -7011,6 +7011,11 @@ static int gfx_v10_0_compute_mqd_init(struct amdgpu_device *adev, void *m, tmp = REG_SET_FIELD(tmp, CP_HQD_IB_CONTROL, MIN_IB_AVAIL_SIZE, 3); mqd->cp_hqd_ib_control = tmp; + 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; + /* set static priority for a compute queue/ring */ mqd->cp_hqd_pipe_priority = prop->hqd_pipe_priority; mqd->cp_hqd_queue_priority = prop->hqd_queue_priority;