drm/amdgpu: merge amd_sched_entity and amd_context_entity v2

Avoiding a couple of casts.

v2: rename c_entity to entity as well
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu.h

@@ -1015,7 +1015,7 @@ struct amdgpu_vm_manager {
 struct amdgpu_ctx_ring {
 	uint64_t		sequence;
 	struct fence		*fences[AMDGPU_CTX_MAX_CS_PENDING];
-	struct amd_context_entity c_entity;
+	struct amd_sched_entity	entity;
 };
 
 struct amdgpu_ctx {

drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c

@@ -900,7 +900,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		struct amdgpu_ring * ring =
 			amdgpu_cs_parser_get_ring(adev, parser);
 		parser->ibs[parser->num_ibs - 1].sequence = atomic64_inc_return(
-			&parser->ctx->rings[ring->idx].c_entity.last_queued_v_seq);
+			&parser->ctx->rings[ring->idx].entity.last_queued_v_seq);
 		if (ring->is_pte_ring || (parser->bo_list && parser->bo_list->has_userptr)) {
 			r = amdgpu_cs_parser_prepare_job(parser);
 			if (r)
@@ -911,7 +911,7 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		parser->run_job = amdgpu_cs_parser_run_job;
 		parser->free_job = amdgpu_cs_parser_free_job;
 		amd_sched_push_job(ring->scheduler,
-				   &parser->ctx->rings[ring->idx].c_entity,
+				   &parser->ctx->rings[ring->idx].entity,
 				   parser);
 		cs->out.handle = parser->ibs[parser->num_ibs - 1].sequence;
 		up_read(&adev->exclusive_lock);

drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c

@@ -46,8 +46,8 @@ int amdgpu_ctx_init(struct amdgpu_device *adev, bool kernel,
 				rq = &adev->rings[i]->scheduler->kernel_rq;
 			else
 				rq = &adev->rings[i]->scheduler->sched_rq;
-			r = amd_context_entity_init(adev->rings[i]->scheduler,
-						    &ctx->rings[i].c_entity,
+			r = amd_sched_entity_init(adev->rings[i]->scheduler,
+						  &ctx->rings[i].entity,
 						  rq, amdgpu_sched_jobs);
 			if (r)
 				break;
@@ -55,8 +55,8 @@ int amdgpu_ctx_init(struct amdgpu_device *adev, bool kernel,
 
 		if (i < adev->num_rings) {
 			for (j = 0; j < i; j++)
-				amd_context_entity_fini(adev->rings[j]->scheduler,
-							&ctx->rings[j].c_entity);
+				amd_sched_entity_fini(adev->rings[j]->scheduler,
+						      &ctx->rings[j].entity);
 			kfree(ctx);
 			return r;
 		}
@@ -75,8 +75,8 @@ void amdgpu_ctx_fini(struct amdgpu_ctx *ctx)
 
 	if (amdgpu_enable_scheduler) {
 		for (i = 0; i < adev->num_rings; i++)
-			amd_context_entity_fini(adev->rings[i]->scheduler,
-						&ctx->rings[i].c_entity);
+			amd_sched_entity_fini(adev->rings[i]->scheduler,
+					      &ctx->rings[i].entity);
 	}
 }
 
@@ -271,7 +271,7 @@ struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
 	int r;
 
 	if (amdgpu_enable_scheduler) {
-		r = amd_sched_wait_emit(&cring->c_entity,
+		r = amd_sched_wait_emit(&cring->entity,
 					seq,
 					false,
 					-1);
@@ -281,7 +281,7 @@ struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx,
 
 	spin_lock(&ctx->ring_lock);
 	if (amdgpu_enable_scheduler)
-		queued_seq = amd_sched_next_queued_seq(&cring->c_entity);
+		queued_seq = amd_sched_next_queued_seq(&cring->entity);
 	else
 		queued_seq = cring->sequence;
 

drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c

@@ -28,7 +28,7 @@
 #include "amdgpu.h"
 
 static int amdgpu_sched_prepare_job(struct amd_gpu_scheduler *sched,
-				    struct amd_context_entity *c_entity,
+				    struct amd_sched_entity *entity,
 				    void *job)
 {
 	int r = 0;
@@ -51,7 +51,7 @@ static void amdgpu_fence_sched_cb(struct fence *f, struct fence_cb *cb)
 }
 
 static void amdgpu_sched_run_job(struct amd_gpu_scheduler *sched,
-				 struct amd_context_entity *c_entity,
+				 struct amd_sched_entity *entity,
 				 struct amd_sched_job *job)
 {
 	int r = 0;
@@ -83,7 +83,7 @@ static void amdgpu_sched_run_job(struct amd_gpu_scheduler *sched,
 			goto err;
 	}
 
-	amd_sched_emit(c_entity, sched_job->ibs[sched_job->num_ibs - 1].sequence);
+	amd_sched_emit(entity, sched_job->ibs[sched_job->num_ibs - 1].sequence);
 
 	mutex_unlock(&sched_job->job_lock);
 	return;
@@ -136,13 +136,13 @@ int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev,
 			return -ENOMEM;
 		}
 		sched_job->free_job = free_job;
-		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].c_entity.last_queued_v_seq);
+		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].entity.last_queued_v_seq);
 		ibs[num_ibs - 1].sequence = v_seq;
 		amd_sched_push_job(ring->scheduler,
-				   &adev->kernel_ctx.rings[ring->idx].c_entity,
+				   &adev->kernel_ctx.rings[ring->idx].entity,
 				   sched_job);
 		r = amd_sched_wait_emit(
-			&adev->kernel_ctx.rings[ring->idx].c_entity,
+			&adev->kernel_ctx.rings[ring->idx].entity,
 			v_seq,
 			false,
 			-1);

drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c

@@ -379,12 +379,12 @@ static int amdgpu_vm_clear_bo(struct amdgpu_device *adev,
 		sched_job->job_param.vm.bo = bo;
 		sched_job->run_job = amdgpu_vm_run_job;
 		sched_job->free_job = amdgpu_vm_free_job;
-		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].c_entity.last_queued_v_seq);
+		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].entity.last_queued_v_seq);
 		ib->sequence = v_seq;
 		amd_sched_push_job(ring->scheduler,
-				   &adev->kernel_ctx.rings[ring->idx].c_entity,
+				   &adev->kernel_ctx.rings[ring->idx].entity,
 				   sched_job);
-		r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].c_entity,
+		r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].entity,
 					v_seq,
 					false,
 					-1);
@@ -530,12 +530,12 @@ int amdgpu_vm_update_page_directory(struct amdgpu_device *adev,
 			sched_job->job_param.vm.bo = pd;
 			sched_job->run_job = amdgpu_vm_run_job;
 			sched_job->free_job = amdgpu_vm_free_job;
-			v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].c_entity.last_queued_v_seq);
+			v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].entity.last_queued_v_seq);
 			ib->sequence = v_seq;
 			amd_sched_push_job(ring->scheduler,
-					   &adev->kernel_ctx.rings[ring->idx].c_entity,
+					   &adev->kernel_ctx.rings[ring->idx].entity,
 					   sched_job);
-			r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].c_entity,
+			r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].entity,
 						v_seq,
 						false,
 						-1);
@@ -883,12 +883,12 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
 		sched_job->job_param.vm_mapping.fence = fence;
 		sched_job->run_job = amdgpu_vm_bo_update_mapping_run_job;
 		sched_job->free_job = amdgpu_vm_free_job;
-		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].c_entity.last_queued_v_seq);
+		v_seq = atomic64_inc_return(&adev->kernel_ctx.rings[ring->idx].entity.last_queued_v_seq);
 		ib->sequence = v_seq;
 		amd_sched_push_job(ring->scheduler,
-				   &adev->kernel_ctx.rings[ring->idx].c_entity,
+				   &adev->kernel_ctx.rings[ring->idx].entity,
 				   sched_job);
-		r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].c_entity,
+		r = amd_sched_wait_emit(&adev->kernel_ctx.rings[ring->idx].entity,
 					v_seq,
 					false,
 					-1);

drivers/gpu/drm/amd/scheduler/gpu_scheduler.c

@@ -76,7 +76,7 @@ static struct amd_sched_entity *rq_select_entity(struct amd_run_queue *rq)
 	return i ? p : NULL;
 }
 
-static bool context_entity_is_waiting(struct amd_context_entity *entity)
+static bool context_entity_is_waiting(struct amd_sched_entity *entity)
 {
 	/* TODO: sync obj for multi-ring synchronization */
 	return false;
@@ -84,14 +84,11 @@ static bool context_entity_is_waiting(struct amd_context_entity *entity)
 
 static int gpu_entity_check_status(struct amd_sched_entity *entity)
 {
-	struct amd_context_entity *tmp;
-
 	if (entity == &entity->belongto_rq->head)
 		return -1;
 
-	tmp = container_of(entity, typeof(*tmp), generic_entity);
-	if (kfifo_is_empty(&tmp->job_queue) ||
-	    context_entity_is_waiting(tmp))
+	if (kfifo_is_empty(&entity->job_queue) ||
+	    context_entity_is_waiting(entity))
 		return -1;
 
 	return 0;
@@ -123,31 +120,26 @@ static bool is_scheduler_ready(struct amd_gpu_scheduler *sched)
  * Select next entity from the kernel run queue, if not available,
  * return null.
 */
-static struct amd_context_entity *
+static struct amd_sched_entity *
 kernel_rq_select_context(struct amd_gpu_scheduler *sched)
 {
 	struct amd_sched_entity *sched_entity;
-	struct amd_context_entity *tmp = NULL;
 	struct amd_run_queue *rq = &sched->kernel_rq;
 
 	mutex_lock(&rq->lock);
 	sched_entity = rq_select_entity(rq);
-	if (sched_entity)
-		tmp = container_of(sched_entity,
-				   typeof(*tmp),
-				   generic_entity);
 	mutex_unlock(&rq->lock);
-	return tmp;
+	return sched_entity;
 }
 
 /**
  * Select next entity containing real IB submissions
 */
-static struct amd_context_entity *
+static struct amd_sched_entity *
 select_context(struct amd_gpu_scheduler *sched)
 {
-	struct amd_context_entity *wake_entity = NULL;
-	struct amd_context_entity *tmp;
+	struct amd_sched_entity *wake_entity = NULL;
+	struct amd_sched_entity *tmp;
 	struct amd_run_queue *rq;
 
 	if (!is_scheduler_ready(sched))
@@ -158,12 +150,9 @@ select_context(struct amd_gpu_scheduler *sched)
 	if (tmp != NULL)
 		goto exit;
 
-	WARN_ON(offsetof(struct amd_context_entity, generic_entity) != 0);
-
 	rq = &sched->sched_rq;
 	mutex_lock(&rq->lock);
-	tmp = container_of(rq_select_entity(rq),
-			   typeof(*tmp), generic_entity);
+	tmp = rq_select_entity(rq);
 	mutex_unlock(&rq->lock);
 exit:
 	if (sched->current_entity && (sched->current_entity != tmp))
@@ -178,15 +167,15 @@ select_context(struct amd_gpu_scheduler *sched)
  * Init a context entity used by scheduler when submit to HW ring.
  *
  * @sched	The pointer to the scheduler
- * @entity	The pointer to a valid amd_context_entity
+ * @entity	The pointer to a valid amd_sched_entity
  * @rq		The run queue this entity belongs
  * @kernel	If this is an entity for the kernel
  * @jobs	The max number of jobs in the job queue
  *
  * return 0 if succeed. negative error code on failure
 */
-int amd_context_entity_init(struct amd_gpu_scheduler *sched,
-			    struct amd_context_entity *entity,
+int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
+			    struct amd_sched_entity *entity,
 			    struct amd_run_queue *rq,
 			    uint32_t jobs)
 {
@@ -195,10 +184,10 @@ int amd_context_entity_init(struct amd_gpu_scheduler *sched,
 	if (!(sched && entity && rq))
 		return -EINVAL;
 
-	memset(entity, 0, sizeof(struct amd_context_entity));
+	memset(entity, 0, sizeof(struct amd_sched_entity));
 	seq_ring = ((uint64_t)sched->ring_id) << 60;
 	spin_lock_init(&entity->lock);
-	entity->generic_entity.belongto_rq = rq;
+	entity->belongto_rq = rq;
 	entity->scheduler = sched;
 	init_waitqueue_head(&entity->wait_queue);
 	init_waitqueue_head(&entity->wait_emit);
@@ -213,7 +202,7 @@ int amd_context_entity_init(struct amd_gpu_scheduler *sched,
 
 	/* Add the entity to the run queue */
 	mutex_lock(&rq->lock);
-	rq_add_entity(rq, &entity->generic_entity);
+	rq_add_entity(rq, entity);
 	mutex_unlock(&rq->lock);
 	return 0;
 }
@@ -227,14 +216,14 @@ int amd_context_entity_init(struct amd_gpu_scheduler *sched,
  * return true if entity is initialized, false otherwise
 */
 static bool is_context_entity_initialized(struct amd_gpu_scheduler *sched,
-					  struct amd_context_entity *entity)
+					  struct amd_sched_entity *entity)
 {
 	return entity->scheduler == sched &&
-		entity->generic_entity.belongto_rq != NULL;
+		entity->belongto_rq != NULL;
 }
 
 static bool is_context_entity_idle(struct amd_gpu_scheduler *sched,
-				   struct amd_context_entity *entity)
+				   struct amd_sched_entity *entity)
 {
 	/**
 	 * Idle means no pending IBs, and the entity is not
@@ -256,11 +245,11 @@ static bool is_context_entity_idle(struct amd_gpu_scheduler *sched,
  *
  * return 0 if succeed. negative error code on failure
  */
-int amd_context_entity_fini(struct amd_gpu_scheduler *sched,
-			    struct amd_context_entity *entity)
+int amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
+			    struct amd_sched_entity *entity)
 {
 	int r = 0;
-	struct amd_run_queue *rq = entity->generic_entity.belongto_rq;
+	struct amd_run_queue *rq = entity->belongto_rq;
 
 	if (!is_context_entity_initialized(sched, entity))
 		return 0;
@@ -283,7 +272,7 @@ int amd_context_entity_fini(struct amd_gpu_scheduler *sched,
 	}
 
 	mutex_lock(&rq->lock);
-	rq_remove_entity(rq, &entity->generic_entity);
+	rq_remove_entity(rq, entity);
 	mutex_unlock(&rq->lock);
 	kfifo_free(&entity->job_queue);
 	return r;
@@ -293,7 +282,7 @@ int amd_context_entity_fini(struct amd_gpu_scheduler *sched,
  * Submit a normal job to the job queue
  *
  * @sched	The pointer to the scheduler
- * @c_entity    The pointer to amd_context_entity
+ * @c_entity    The pointer to amd_sched_entity
  * @job		The pointer to job required to submit
  * return 0 if succeed. -1 if failed.
  *        -2 indicate queue is full for this client, client should wait untill
@@ -301,7 +290,7 @@ int amd_context_entity_fini(struct amd_gpu_scheduler *sched,
  *	  -1 other fail.
 */
 int amd_sched_push_job(struct amd_gpu_scheduler *sched,
-		       struct amd_context_entity *c_entity,
+		       struct amd_sched_entity *c_entity,
 		       void *job)
 {
 	while (kfifo_in_spinlocked(&c_entity->job_queue, &job, sizeof(void *),
@@ -328,7 +317,7 @@ int amd_sched_push_job(struct amd_gpu_scheduler *sched,
  *
  * return =0 signaled ,  <0 failed
 */
-int amd_sched_wait_emit(struct amd_context_entity *c_entity,
+int amd_sched_wait_emit(struct amd_sched_entity *c_entity,
 			uint64_t seq,
 			bool intr,
 			long timeout)
@@ -369,7 +358,7 @@ static int amd_sched_main(void *param)
 	int r;
 	void *job;
 	struct sched_param sparam = {.sched_priority = 1};
-	struct amd_context_entity *c_entity = NULL;
+	struct amd_sched_entity *c_entity = NULL;
 	struct amd_gpu_scheduler *sched = (struct amd_gpu_scheduler *)param;
 
 	sched_setscheduler(current, SCHED_FIFO, &sparam);
@@ -505,7 +494,7 @@ int amd_sched_destroy(struct amd_gpu_scheduler *sched)
  * @entity The context entity
  * @seq The sequence number for the latest emitted job
 */
-void amd_sched_emit(struct amd_context_entity *c_entity, uint64_t seq)
+void amd_sched_emit(struct amd_sched_entity *c_entity, uint64_t seq)
 {
 	atomic64_set(&c_entity->last_emitted_v_seq, seq);
 	wake_up_all(&c_entity->wait_emit);
@@ -518,7 +507,7 @@ void amd_sched_emit(struct amd_context_entity *c_entity, uint64_t seq)
  *
  * return the next queued sequence number
 */
-uint64_t amd_sched_next_queued_seq(struct amd_context_entity *c_entity)
+uint64_t amd_sched_next_queued_seq(struct amd_sched_entity *c_entity)
 {
 	return atomic64_read(&c_entity->last_queued_v_seq) + 1;
 }

drivers/gpu/drm/amd/scheduler/gpu_scheduler.h

@@ -41,6 +41,17 @@ struct amd_run_queue;
 struct amd_sched_entity {
 	struct list_head		list;
 	struct amd_run_queue		*belongto_rq;
+	spinlock_t			lock;
+	/* the virtual_seq is unique per context per ring */
+	atomic64_t			last_queued_v_seq;
+	atomic64_t			last_emitted_v_seq;
+	/* the job_queue maintains the jobs submitted by clients */
+	struct kfifo                    job_queue;
+	spinlock_t			queue_lock;
+	struct amd_gpu_scheduler	*scheduler;
+	wait_queue_head_t		wait_queue;
+	wait_queue_head_t		wait_emit;
+	bool                            is_pending;
 };
 
 /**
@@ -61,25 +72,6 @@ struct amd_run_queue {
 	int (*check_entity_status)(struct amd_sched_entity *entity);
 };
 
-/**
- * Context based scheduler entity, there can be multiple entities for
- * each context, and one entity per ring
-*/
-struct amd_context_entity {
-	struct amd_sched_entity	        generic_entity;
-	spinlock_t			lock;
-	/* the virtual_seq is unique per context per ring */
-	atomic64_t			last_queued_v_seq;
-	atomic64_t			last_emitted_v_seq;
-	/* the job_queue maintains the jobs submitted by clients */
-	struct kfifo                    job_queue;
-	spinlock_t			queue_lock;
-	struct amd_gpu_scheduler	*scheduler;
-	wait_queue_head_t		wait_queue;
-	wait_queue_head_t		wait_emit;
-	bool                            is_pending;
-};
-
 struct amd_sched_job {
 	struct list_head		list;
 	struct fence_cb                 cb;
@@ -93,10 +85,10 @@ struct amd_sched_job {
 */
 struct amd_sched_backend_ops {
 	int (*prepare_job)(struct amd_gpu_scheduler *sched,
-			   struct amd_context_entity *c_entity,
+			   struct amd_sched_entity *c_entity,
 			   void *job);
 	void (*run_job)(struct amd_gpu_scheduler *sched,
-			struct amd_context_entity *c_entity,
+			struct amd_sched_entity *c_entity,
 			struct amd_sched_job *job);
 	void (*process_job)(struct amd_gpu_scheduler *sched, void *job);
 };
@@ -116,7 +108,7 @@ struct amd_gpu_scheduler {
 	uint32_t			granularity; /* in ms unit */
 	uint32_t			preemption;
 	wait_queue_head_t		wait_queue;
-	struct amd_context_entity	*current_entity;
+	struct amd_sched_entity	*current_entity;
 	struct mutex			sched_lock;
 	spinlock_t			queue_lock;
 	uint32_t                        hw_submission_limit;
@@ -132,10 +124,10 @@ struct amd_gpu_scheduler *amd_sched_create(void *device,
 int amd_sched_destroy(struct amd_gpu_scheduler *sched);
 
 int amd_sched_push_job(struct amd_gpu_scheduler *sched,
-		       struct amd_context_entity *c_entity,
+		       struct amd_sched_entity *c_entity,
 		       void *job);
 
-int amd_sched_wait_emit(struct amd_context_entity *c_entity,
+int amd_sched_wait_emit(struct amd_sched_entity *c_entity,
 			uint64_t seq,
 			bool intr,
 			long timeout);
@@ -143,16 +135,15 @@ int amd_sched_wait_emit(struct amd_context_entity *c_entity,
 void amd_sched_process_job(struct amd_sched_job *sched_job);
 uint64_t amd_sched_get_handled_seq(struct amd_gpu_scheduler *sched);
 
-int amd_context_entity_fini(struct amd_gpu_scheduler *sched,
-			    struct amd_context_entity *entity);
-
-int amd_context_entity_init(struct amd_gpu_scheduler *sched,
-			    struct amd_context_entity *entity,
+int amd_sched_entity_init(struct amd_gpu_scheduler *sched,
+			  struct amd_sched_entity *entity,
 			  struct amd_run_queue *rq,
 			  uint32_t jobs);
+int amd_sched_entity_fini(struct amd_gpu_scheduler *sched,
+			  struct amd_sched_entity *entity);
 
-void amd_sched_emit(struct amd_context_entity *c_entity, uint64_t seq);
+void amd_sched_emit(struct amd_sched_entity *c_entity, uint64_t seq);
 
-uint64_t amd_sched_next_queued_seq(struct amd_context_entity *c_entity);
+uint64_t amd_sched_next_queued_seq(struct amd_sched_entity *c_entity);
 
 #endif