From ce882e6dc241ab8dded0eeeb33a86482d44a5689 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Christian=20K=C3=B6nig?= Date: Wed, 19 Aug 2015 15:00:55 +0200 Subject: [PATCH] drm/amdgpu: remove v_seq handling from the scheduler v2 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Simply not used any more. Only keep 32bit atomic for fence sequence numbering. v2: trivial rebase Signed-off-by: Christian König Reviewed-by: Alex Deucher (v1) Reviewed-by: Jammy Zhou (v1) Reviewed-by: Chunming Zhou (v1) --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 ++---- drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c | 20 +++++-------------- drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 6 +----- drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c | 4 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c | 1 - drivers/gpu/drm/amd/scheduler/gpu_scheduler.c | 19 +----------------- drivers/gpu/drm/amd/scheduler/gpu_scheduler.h | 7 +------ drivers/gpu/drm/amd/scheduler/sched_fence.c | 13 +++++++----- 9 files changed, 21 insertions(+), 57 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 80f2ceaf6af6..65e0e9406abb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1047,7 +1047,7 @@ int amdgpu_ctx_put(struct amdgpu_ctx *ctx); struct amdgpu_ctx *amdgpu_ctx_get_ref(struct amdgpu_ctx *ctx); uint64_t amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, - struct fence *fence, uint64_t queued_seq); + struct fence *fence); struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, uint64_t seq); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index dc8d2829c1e9..f91849b12a0f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -866,11 +866,9 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) kfree(job); goto out; } - job->ibs[parser->num_ibs - 1].sequence = + cs->out.handle = amdgpu_ctx_add_fence(job->ctx, ring, - &job->base.s_fence->base, - job->base.s_fence->v_seq); - cs->out.handle = job->base.s_fence->v_seq; + &job->base.s_fence->base); list_sort(NULL, &parser->validated, cmp_size_smaller_first); ttm_eu_fence_buffer_objects(&parser->ticket, &parser->validated, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c index 8660c0854a1e..f024effa60f9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c @@ -236,17 +236,13 @@ int amdgpu_ctx_put(struct amdgpu_ctx *ctx) } uint64_t amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, - struct fence *fence, uint64_t queued_seq) + struct fence *fence) { struct amdgpu_ctx_ring *cring = & ctx->rings[ring->idx]; - uint64_t seq = 0; + uint64_t seq = cring->sequence; unsigned idx = 0; struct fence *other = NULL; - if (amdgpu_enable_scheduler) - seq = queued_seq; - else - seq = cring->sequence; idx = seq % AMDGPU_CTX_MAX_CS_PENDING; other = cring->fences[idx]; if (other) { @@ -260,8 +256,7 @@ uint64_t amdgpu_ctx_add_fence(struct amdgpu_ctx *ctx, struct amdgpu_ring *ring, spin_lock(&ctx->ring_lock); cring->fences[idx] = fence; - if (!amdgpu_enable_scheduler) - cring->sequence++; + cring->sequence++; spin_unlock(&ctx->ring_lock); fence_put(other); @@ -274,21 +269,16 @@ struct fence *amdgpu_ctx_get_fence(struct amdgpu_ctx *ctx, { struct amdgpu_ctx_ring *cring = & ctx->rings[ring->idx]; struct fence *fence; - uint64_t queued_seq; spin_lock(&ctx->ring_lock); - if (amdgpu_enable_scheduler) - queued_seq = amd_sched_next_queued_seq(&cring->entity); - else - queued_seq = cring->sequence; - if (seq >= queued_seq) { + if (seq >= cring->sequence) { spin_unlock(&ctx->ring_lock); return ERR_PTR(-EINVAL); } - if (seq + AMDGPU_CTX_MAX_CS_PENDING < queued_seq) { + if (seq + AMDGPU_CTX_MAX_CS_PENDING < cring->sequence) { spin_unlock(&ctx->ring_lock); return NULL; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c index 13c5978ac69b..737c8e3e3a74 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c @@ -126,7 +126,6 @@ int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs, struct amdgpu_ring *ring; struct amdgpu_ctx *ctx, *old_ctx; struct amdgpu_vm *vm; - uint64_t sequence; unsigned i; int r = 0; @@ -199,12 +198,9 @@ int amdgpu_ib_schedule(struct amdgpu_device *adev, unsigned num_ibs, return r; } - sequence = amdgpu_enable_scheduler ? ib->sequence : 0; - if (!amdgpu_enable_scheduler && ib->ctx) ib->sequence = amdgpu_ctx_add_fence(ib->ctx, ring, - &ib->fence->base, - sequence); + &ib->fence->base); /* wrap the last IB with fence */ if (ib->user) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c index b7cbaa9d532e..26b17939c9c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sa.c @@ -435,8 +435,8 @@ void amdgpu_sa_bo_dump_debug_info(struct amdgpu_sa_manager *sa_manager, seq_printf(m, " protected by 0x%016llx on ring %d", a_fence->seq, a_fence->ring->idx); if (s_fence) - seq_printf(m, " protected by 0x%016llx on ring %d", - s_fence->v_seq, + seq_printf(m, " protected by 0x%016x on ring %d", + s_fence->base.seqno, s_fence->entity->scheduler->ring_id); } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c index 06d7bf51db9a..964b54381feb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sched.c @@ -111,7 +111,6 @@ int amdgpu_sched_ib_submit_kernel_helper(struct amdgpu_device *adev, kfree(job); return r; } - ibs[num_ibs - 1].sequence = job->base.s_fence->v_seq; *f = fence_get(&job->base.s_fence->base); mutex_unlock(&job->job_lock); } else { diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c index 1125aa2e2a9a..f8d46b0b4e3b 100644 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.c @@ -156,14 +156,12 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched, struct amd_sched_rq *rq, uint32_t jobs) { - uint64_t seq_ring = 0; char name[20]; if (!(sched && entity && rq)) return -EINVAL; memset(entity, 0, sizeof(struct amd_sched_entity)); - seq_ring = ((uint64_t)sched->ring_id) << 60; spin_lock_init(&entity->lock); entity->belongto_rq = rq; entity->scheduler = sched; @@ -179,8 +177,7 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched, return -EINVAL; spin_lock_init(&entity->queue_lock); - atomic64_set(&entity->last_queued_v_seq, seq_ring); - atomic64_set(&entity->last_signaled_v_seq, seq_ring); + atomic_set(&entity->fence_seq, 0); /* Add the entity to the run queue */ amd_sched_rq_add_entity(rq, entity); @@ -299,8 +296,6 @@ static void amd_sched_process_job(struct fence *f, struct fence_cb *cb) unsigned long flags; sched = sched_job->sched; - atomic64_set(&sched_job->s_entity->last_signaled_v_seq, - sched_job->s_fence->v_seq); amd_sched_fence_signal(sched_job->s_fence); spin_lock_irqsave(&sched->queue_lock, flags); list_del(&sched_job->list); @@ -421,15 +416,3 @@ int amd_sched_destroy(struct amd_gpu_scheduler *sched) kfree(sched); return 0; } - -/** - * Get next queued sequence number - * - * @entity The context entity - * - * return the next queued sequence number -*/ -uint64_t amd_sched_next_queued_seq(struct amd_sched_entity *c_entity) -{ - return atomic64_read(&c_entity->last_queued_v_seq) + 1; -} diff --git a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h index 6597d61266e7..d328e968beb3 100644 --- a/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h +++ b/drivers/gpu/drm/amd/scheduler/gpu_scheduler.h @@ -42,9 +42,7 @@ struct amd_sched_entity { struct list_head list; struct amd_sched_rq *belongto_rq; spinlock_t lock; - /* the virtual_seq is unique per context per ring */ - atomic64_t last_queued_v_seq; - atomic64_t last_signaled_v_seq; + atomic_t fence_seq; /* the job_queue maintains the jobs submitted by clients */ struct kfifo job_queue; spinlock_t queue_lock; @@ -72,7 +70,6 @@ struct amd_sched_fence { struct fence base; struct fence_cb cb; struct amd_sched_entity *entity; - uint64_t v_seq; spinlock_t lock; }; @@ -148,8 +145,6 @@ int amd_sched_entity_init(struct amd_gpu_scheduler *sched, int amd_sched_entity_fini(struct amd_gpu_scheduler *sched, struct amd_sched_entity *entity); -uint64_t amd_sched_next_queued_seq(struct amd_sched_entity *c_entity); - struct amd_sched_fence *amd_sched_fence_create( struct amd_sched_entity *s_entity); void amd_sched_fence_signal(struct amd_sched_fence *fence); diff --git a/drivers/gpu/drm/amd/scheduler/sched_fence.c b/drivers/gpu/drm/amd/scheduler/sched_fence.c index a4751598c0b4..266ed7bbbc74 100644 --- a/drivers/gpu/drm/amd/scheduler/sched_fence.c +++ b/drivers/gpu/drm/amd/scheduler/sched_fence.c @@ -30,16 +30,19 @@ struct amd_sched_fence *amd_sched_fence_create(struct amd_sched_entity *s_entity) { struct amd_sched_fence *fence = NULL; + unsigned seq; + fence = kzalloc(sizeof(struct amd_sched_fence), GFP_KERNEL); if (fence == NULL) return NULL; - fence->v_seq = atomic64_inc_return(&s_entity->last_queued_v_seq); + fence->entity = s_entity; spin_lock_init(&fence->lock); - fence_init(&fence->base, &amd_sched_fence_ops, - &fence->lock, - s_entity->fence_context, - fence->v_seq); + + seq = atomic_inc_return(&s_entity->fence_seq); + fence_init(&fence->base, &amd_sched_fence_ops, &fence->lock, + s_entity->fence_context, seq); + return fence; } -- 2.20.1