From: Daniel Vetter Date: Thu, 11 Feb 2010 21:37:04 +0000 (+0100) Subject: drm/i915: move the wait_rendering call into flush_gpu_write_domain X-Git-Tag: v2.6.37-rc1~92^2~28^2~232 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ba3d8d749b01548b9;p=karo-tx-linux.git drm/i915: move the wait_rendering call into flush_gpu_write_domain One caller (for the pageflip support) wants a purely pipelined flush. Distinguish this case by a new parameter. This will also be useful later on for pipelined fencing. v2: Simplify the code by depending upon the implicit request emitting of i915_wait_request. Signed-off-by: Daniel Vetter [ickle: And drop the non-interruptible support in the process.] Signed-off-by: Chris Wilson --- diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 4c043cb02b38..9f13aaa7820e 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -37,7 +37,9 @@ #include static uint32_t i915_gem_get_gtt_alignment(struct drm_gem_object *obj); -static int i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj); + +static int i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj, + bool pipelined); static void i915_gem_object_flush_gtt_write_domain(struct drm_gem_object *obj); static void i915_gem_object_flush_cpu_write_domain(struct drm_gem_object *obj); static int i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj, @@ -46,8 +48,7 @@ static int i915_gem_object_set_cpu_read_domain_range(struct drm_gem_object *obj, uint64_t offset, uint64_t size); static void i915_gem_object_set_to_full_cpu_read_domain(struct drm_gem_object *obj); -static int i915_gem_object_wait_rendering(struct drm_gem_object *obj, - bool interruptible); +static int i915_gem_object_wait_rendering(struct drm_gem_object *obj); static int i915_gem_object_bind_to_gtt(struct drm_gem_object *obj, unsigned alignment); static void i915_gem_clear_fence_reg(struct drm_gem_object *obj); @@ -1933,8 +1934,7 @@ i915_gem_flush(struct drm_device *dev, * safe to unbind from the GTT or access from the CPU. */ static int -i915_gem_object_wait_rendering(struct drm_gem_object *obj, - bool interruptible) +i915_gem_object_wait_rendering(struct drm_gem_object *obj) { struct drm_device *dev = obj->dev; struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); @@ -1953,10 +1953,9 @@ i915_gem_object_wait_rendering(struct drm_gem_object *obj, DRM_INFO("%s: object %p wait for seqno %08x\n", __func__, obj, obj_priv->last_rendering_seqno); #endif - ret = i915_do_wait_request(dev, - obj_priv->last_rendering_seqno, - interruptible, - obj_priv->ring); + ret = i915_wait_request(dev, + obj_priv->last_rendering_seqno, + obj_priv->ring); if (ret != 0) return ret; } @@ -2453,11 +2452,7 @@ i915_gem_object_put_fence_reg(struct drm_gem_object *obj) if (!IS_I965G(dev)) { int ret; - ret = i915_gem_object_flush_gpu_write_domain(obj); - if (ret != 0) - return ret; - - ret = i915_gem_object_wait_rendering(obj, true); + ret = i915_gem_object_flush_gpu_write_domain(obj, false); if (ret != 0) return ret; } @@ -2609,11 +2604,11 @@ i915_gem_clflush_object(struct drm_gem_object *obj) /** Flushes any GPU write domain for the object if it's dirty. */ static int -i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj) +i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj, + bool pipelined) { struct drm_device *dev = obj->dev; uint32_t old_write_domain; - struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); if ((obj->write_domain & I915_GEM_GPU_DOMAINS) == 0) return 0; @@ -2621,13 +2616,15 @@ i915_gem_object_flush_gpu_write_domain(struct drm_gem_object *obj) /* Queue the GPU write cache flushing we need. */ old_write_domain = obj->write_domain; i915_gem_flush(dev, 0, obj->write_domain); - if (i915_add_request(dev, NULL, obj_priv->ring) == 0) - return -ENOMEM; trace_i915_gem_object_change_domain(obj, obj->read_domains, old_write_domain); - return 0; + + if (pipelined) + return 0; + + return i915_gem_object_wait_rendering(obj); } /** Flushes the GTT write domain for the object if it's dirty. */ @@ -2684,7 +2681,7 @@ i915_gem_object_flush_write_domain(struct drm_gem_object *obj) i915_gem_object_flush_cpu_write_domain(obj); break; default: - ret = i915_gem_object_flush_gpu_write_domain(obj); + ret = i915_gem_object_flush_gpu_write_domain(obj, true); break; } @@ -2708,12 +2705,7 @@ i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj, int write) if (obj_priv->gtt_space == NULL) return -EINVAL; - ret = i915_gem_object_flush_gpu_write_domain(obj); - if (ret != 0) - return ret; - - /* Wait on any GPU rendering and flushing to occur. */ - ret = i915_gem_object_wait_rendering(obj, true); + ret = i915_gem_object_flush_gpu_write_domain(obj, false); if (ret != 0) return ret; @@ -2723,8 +2715,13 @@ i915_gem_object_set_to_gtt_domain(struct drm_gem_object *obj, int write) /* If we're writing through the GTT domain, then CPU and GPU caches * will need to be invalidated at next use. */ - if (write) + if (write) { + ret = i915_gem_object_wait_rendering(obj); + if (ret) + return ret; + obj->read_domains &= I915_GEM_DOMAIN_GTT; + } i915_gem_object_flush_cpu_write_domain(obj); @@ -2753,38 +2750,25 @@ int i915_gem_object_set_to_display_plane(struct drm_gem_object *obj) { struct drm_i915_gem_object *obj_priv = to_intel_bo(obj); - uint32_t old_write_domain, old_read_domains; + uint32_t old_read_domains; int ret; /* Not valid to be called on unbound objects. */ if (obj_priv->gtt_space == NULL) return -EINVAL; - ret = i915_gem_object_flush_gpu_write_domain(obj); - if (ret) - return ret; - - /* Wait on any GPU rendering and flushing to occur. */ - ret = i915_gem_object_wait_rendering(obj, false); + ret = i915_gem_object_flush_gpu_write_domain(obj, true); if (ret != 0) return ret; i915_gem_object_flush_cpu_write_domain(obj); - old_write_domain = obj->write_domain; old_read_domains = obj->read_domains; - - /* It should now be out of any other write domains, and we can update - * the domain values for our changes. - */ - BUG_ON((obj->write_domain & ~I915_GEM_DOMAIN_GTT) != 0); obj->read_domains = I915_GEM_DOMAIN_GTT; - obj->write_domain = I915_GEM_DOMAIN_GTT; - obj_priv->dirty = 1; trace_i915_gem_object_change_domain(obj, old_read_domains, - old_write_domain); + obj->write_domain); return 0; } @@ -2801,12 +2785,7 @@ i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj, int write) uint32_t old_write_domain, old_read_domains; int ret; - ret = i915_gem_object_flush_gpu_write_domain(obj); - if (ret) - return ret; - - /* Wait on any GPU rendering and flushing to occur. */ - ret = i915_gem_object_wait_rendering(obj, true); + ret = i915_gem_object_flush_gpu_write_domain(obj, false); if (ret != 0) return ret; @@ -2836,6 +2815,10 @@ i915_gem_object_set_to_cpu_domain(struct drm_gem_object *obj, int write) * need to be invalidated at next use. */ if (write) { + ret = i915_gem_object_wait_rendering(obj); + if (ret) + return ret; + obj->read_domains &= I915_GEM_DOMAIN_CPU; obj->write_domain = I915_GEM_DOMAIN_CPU; } @@ -3094,12 +3077,7 @@ i915_gem_object_set_cpu_read_domain_range(struct drm_gem_object *obj, if (offset == 0 && size == obj->size) return i915_gem_object_set_to_cpu_domain(obj, 0); - ret = i915_gem_object_flush_gpu_write_domain(obj); - if (ret) - return ret; - - /* Wait on any GPU rendering and flushing to occur. */ - ret = i915_gem_object_wait_rendering(obj, true); + ret = i915_gem_object_flush_gpu_write_domain(obj, false); if (ret != 0) return ret; i915_gem_object_flush_gtt_write_domain(obj);