From bf93f1fe50af23d670f83f801708bbbb173fc08a Mon Sep 17 00:00:00 2001 From: Gang Ba Date: Thu, 7 Aug 2025 11:14:43 -0400 Subject: [PATCH] drm/amdkfd: Add SDMA queue quantum support for GFX12.1 program SDMAx_QUEUEx_SCHEDULE_CNTL for context switch due to quantum in KFD for GFX12.1 Signed-off-by: Gang Ba Reviewed-by: Amber Lin Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v12_1.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v12_1.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v12_1.c index 9cc8a1ae88f9..1d8c2c5612c6 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v12_1.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v12_1.c @@ -358,6 +358,10 @@ static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, m->sdmax_rlcx_doorbell_offset = q->doorbell_off << SDMA0_SDMA_QUEUE0_DOORBELL_OFFSET__OFFSET__SHIFT; + m->sdmax_rlcx_sched_cntl = (amdgpu_sdma_phase_quantum + << SDMA0_SDMA_QUEUE0_SCHEDULE_CNTL__CONTEXT_QUANTUM__SHIFT) + & SDMA0_SDMA_QUEUE0_SCHEDULE_CNTL__CONTEXT_QUANTUM_MASK; + m->sdma_engine_id = q->sdma_engine_id; m->sdma_queue_id = q->sdma_queue_id; -- 2.47.3