diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 72 |
1 files changed, 53 insertions, 19 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6c2f0b886eb0..32fa1e9eb844 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2311,10 +2311,21 @@ int __i915_add_request(struct intel_engine_cs *ring, { struct drm_i915_private *dev_priv = ring->dev->dev_private; struct drm_i915_gem_request *request; + struct intel_ringbuffer *ringbuf; u32 request_ring_position, request_start; int ret; - request_start = intel_ring_get_tail(ring->buffer); + request = ring->preallocated_lazy_request; + if (WARN_ON(request == NULL)) + return -ENOMEM; + + if (i915.enable_execlists) { + struct intel_context *ctx = request->ctx; + ringbuf = ctx->engine[ring->id].ringbuf; + } else + ringbuf = ring->buffer; + + request_start = intel_ring_get_tail(ringbuf); /* * Emit any outstanding flushes - execbuf can fail to emit the flush * after having emitted the batchbuffer command. Hence we need to fix @@ -2322,24 +2333,32 @@ int __i915_add_request(struct intel_engine_cs *ring, * is that the flush _must_ happen before the next request, no matter * what. */ - ret = intel_ring_flush_all_caches(ring); - if (ret) - return ret; - - request = ring->preallocated_lazy_request; - if (WARN_ON(request == NULL)) - return -ENOMEM; + if (i915.enable_execlists) { + ret = logical_ring_flush_all_caches(ringbuf); + if (ret) + return ret; + } else { + ret = intel_ring_flush_all_caches(ring); + if (ret) + return ret; + } /* Record the position of the start of the request so that * should we detect the updated seqno part-way through the * GPU processing the request, we never over-estimate the * position of the head. */ - request_ring_position = intel_ring_get_tail(ring->buffer); + request_ring_position = intel_ring_get_tail(ringbuf); - ret = ring->add_request(ring); - if (ret) - return ret; + if (i915.enable_execlists) { + ret = ring->emit_request(ringbuf); + if (ret) + return ret; + } else { + ret = ring->add_request(ring); + if (ret) + return ret; + } request->seqno = intel_ring_get_seqno(ring); request->ring = ring; @@ -2354,12 +2373,14 @@ int __i915_add_request(struct intel_engine_cs *ring, */ request->batch_obj = obj; - /* Hold a reference to the current context so that we can inspect - * it later in case a hangcheck error event fires. - */ - request->ctx = ring->last_context; - if (request->ctx) - i915_gem_context_reference(request->ctx); + if (!i915.enable_execlists) { + /* Hold a reference to the current context so that we can inspect + * it later in case a hangcheck error event fires. + */ + request->ctx = ring->last_context; + if (request->ctx) + i915_gem_context_reference(request->ctx); + } request->emitted_jiffies = jiffies; list_add_tail(&request->list, &ring->request_list); @@ -2614,6 +2635,7 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring) while (!list_empty(&ring->request_list)) { struct drm_i915_gem_request *request; + struct intel_ringbuffer *ringbuf; request = list_first_entry(&ring->request_list, struct drm_i915_gem_request, @@ -2623,12 +2645,24 @@ i915_gem_retire_requests_ring(struct intel_engine_cs *ring) break; trace_i915_gem_request_retire(ring, request->seqno); + + /* This is one of the few common intersection points + * between legacy ringbuffer submission and execlists: + * we need to tell them apart in order to find the correct + * ringbuffer to which the request belongs to. + */ + if (i915.enable_execlists) { + struct intel_context *ctx = request->ctx; + ringbuf = ctx->engine[ring->id].ringbuf; + } else + ringbuf = ring->buffer; + /* We know the GPU must have read the request to have * sent us the seqno + interrupt, so use the position * of tail of the request to update the last known position * of the GPU head. */ - ring->buffer->last_retired_head = request->tail; + ringbuf->last_retired_head = request->tail; i915_gem_free_request(request); } |