[PATCH v2 10/19] drm: Use trace_call__##name() at guarded tracepoint call sites

Vineeth Pillai (Google) posted 19 patches 3 hours ago
[PATCH v2 10/19] drm: Use trace_call__##name() at guarded tracepoint call sites
Posted by Vineeth Pillai (Google) 3 hours ago
Replace trace_foo() with the new trace_call__foo() at sites already
guarded by trace_foo_enabled(), avoiding a redundant
static_branch_unlikely() re-evaluation inside the tracepoint.
trace_call__foo() calls the tracepoint callbacks directly without
utilizing the static branch again.

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineeth Pillai (Google) <vineeth@bitbyteword.org>
Assisted-by: Claude:claude-sonnet-4-6
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c            | 2 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c            | 4 ++--
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +-
 drivers/gpu/drm/scheduler/sched_entity.c          | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 24e4b4fc91564..99f0e3c9bddcc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1012,7 +1012,7 @@ static void trace_amdgpu_cs_ibs(struct amdgpu_cs_parser *p)
 		struct amdgpu_job *job = p->jobs[i];
 
 		for (j = 0; j < job->num_ibs; ++j)
-			trace_amdgpu_cs(p, job, &job->ibs[j]);
+			trace_call__amdgpu_cs(p, job, &job->ibs[j]);
 	}
 }
 
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index f2beb980e3c3a..69d5723b98580 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1394,7 +1394,7 @@ int amdgpu_vm_bo_update(struct amdgpu_device *adev, struct amdgpu_bo_va *bo_va,
 
 	if (trace_amdgpu_vm_bo_mapping_enabled()) {
 		list_for_each_entry(mapping, &bo_va->valids, list)
-			trace_amdgpu_vm_bo_mapping(mapping);
+			trace_call__amdgpu_vm_bo_mapping(mapping);
 	}
 
 error_free:
@@ -2167,7 +2167,7 @@ void amdgpu_vm_bo_trace_cs(struct amdgpu_vm *vm, struct ww_acquire_ctx *ticket)
 				continue;
 		}
 
-		trace_amdgpu_vm_bo_cs(mapping);
+		trace_call__amdgpu_vm_bo_cs(mapping);
 	}
 }
 
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index b3d6f2cd8ab6f..2c6c8050af269 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5190,7 +5190,7 @@ static void amdgpu_dm_backlight_set_level(struct amdgpu_display_manager *dm,
 	}
 
 	if (trace_amdgpu_dm_brightness_enabled()) {
-		trace_amdgpu_dm_brightness(__builtin_return_address(0),
+		trace_call__amdgpu_dm_brightness(__builtin_return_address(0),
 					   user_brightness,
 					   brightness,
 					   caps->aux_support,
diff --git a/drivers/gpu/drm/scheduler/sched_entity.c b/drivers/gpu/drm/scheduler/sched_entity.c
index fe174a4857be7..93d764d229ca9 100644
--- a/drivers/gpu/drm/scheduler/sched_entity.c
+++ b/drivers/gpu/drm/scheduler/sched_entity.c
@@ -429,7 +429,7 @@ static bool drm_sched_entity_add_dependency_cb(struct drm_sched_entity *entity,
 
 	if (trace_drm_sched_job_unschedulable_enabled() &&
 	    !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &entity->dependency->flags))
-		trace_drm_sched_job_unschedulable(sched_job, entity->dependency);
+		trace_call__drm_sched_job_unschedulable(sched_job, entity->dependency);
 
 	if (!dma_fence_add_callback(entity->dependency, &entity->cb,
 				    drm_sched_entity_wakeup))
@@ -586,7 +586,7 @@ void drm_sched_entity_push_job(struct drm_sched_job *sched_job)
 		unsigned long index;
 
 		xa_for_each(&sched_job->dependencies, index, entry)
-			trace_drm_sched_job_add_dep(sched_job, entry);
+			trace_call__drm_sched_job_add_dep(sched_job, entry);
 	}
 	atomic_inc(entity->rq->sched->score);
 	WRITE_ONCE(entity->last_user, current->group_leader);
-- 
2.53.0