diff options
| author | Amber Lin <Amber.Lin@amd.com> | 2025-04-22 22:54:19 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-05-01 01:05:46 +0300 |
| commit | ab9fcc6362e0699fc1150aa1d8503c40fce2c1e1 (patch) | |
| tree | 55239147467e5360e6b3e2d235ba5d961ad91cc0 | |
| parent | ffc7e11c1014db7b2fef4b563a53d444a0932f40 (diff) | |
| download | linux-ab9fcc6362e0699fc1150aa1d8503c40fce2c1e1.tar.xz | |
drm/amdkfd: Set SDMA_RLCx_IB_CNTL/SWITCH_INSIDE_IB
When submitting MQD to CP, set SDMA_RLCx_IB_CNTL/SWITCH_INSIDE_IB bit so
it'll allow SDMA preemption if there is a massive command buffer of
long-running SDMA commands.
Signed-off-by: Amber Lin <Amber.Lin@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c index 80320a6c8854..97933d2a3803 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c @@ -495,6 +495,10 @@ static void update_mqd_sdma(struct mqd_manager *mm, void *mqd, m->sdma_engine_id = q->sdma_engine_id; m->sdma_queue_id = q->sdma_queue_id; m->sdmax_rlcx_dummy_reg = SDMA_RLC_DUMMY_DEFAULT; + /* Allow context switch so we don't cross-process starve with a massive + * command buffer of long-running SDMA commands + */ + m->sdmax_rlcx_ib_cntl |= SDMA0_GFX_IB_CNTL__SWITCH_INSIDE_IB_MASK; q->is_active = QUEUE_IS_ACTIVE(*q); } |