[RFC 1/2] drm/amdgpu: Remove dynamic DRM scheduling priority override

Tvrtko Ursulin tursulin at igalia.com
Fri Sep 6 18:06:38 UTC 2024


From: Tvrtko Ursulin <tvrtko.ursulin at igalia.com>

According to Christian the dynamic DRM priority override was only
interesting before the hardware priority (dona via
drm_sched_entity_modify_sched()) existed. Furthermore, both
overrides also only work somewhat on paper while in reality they are only
effective if the entity is idle, which is something userspace is unaware
of when using the AMDGPU_SCHED_OP_*_PRIORITY_OVERRIDE uapi.

Therefore follow Christian's advice and remove this call completely.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at igalia.com>
Cc: Christian König <christian.koenig at amd.com>
Cc: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index c43d1b6e5d66..2480b3227dad 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -820,10 +820,6 @@ static void amdgpu_ctx_set_entity_priority(struct amdgpu_ctx *ctx,
 	struct drm_gpu_scheduler **scheds = NULL;
 	unsigned num_scheds;
 
-	/* set sw priority */
-	drm_sched_entity_set_priority(&aentity->entity,
-				      amdgpu_ctx_to_drm_sched_prio(priority));
-
 	/* set hw priority */
 	if (hw_ip == AMDGPU_HW_IP_COMPUTE || hw_ip == AMDGPU_HW_IP_GFX) {
 		hw_prio = amdgpu_ctx_get_hw_prio(ctx, hw_ip);
-- 
2.46.0



More information about the dri-devel mailing list