... reincarnated from i915_gem_object_flush_gpu(). The semantic difference is that after calling finish_gpu() the object no longer resides in any GPU domain, and so will cause the GPU caches to be invalidated if it is ever used again.
Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/i915_gem.c | 5 ++++- drivers/gpu/drm/i915/intel_display.c | 2 +- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 2536334..4f63d17 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1163,7 +1163,7 @@ void i915_gem_clflush_object(struct drm_i915_gem_object *obj); int __must_check i915_gem_object_set_domain(struct drm_i915_gem_object *obj, uint32_t read_domains, uint32_t write_domain); -int __must_check i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj); +int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj); int __must_check i915_gem_init_ringbuffer(struct drm_device *dev); void i915_gem_cleanup_ringbuffer(struct drm_device *dev); void i915_gem_do_init(struct drm_device *dev, diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index bf32527..d21877a 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3045,7 +3045,7 @@ i915_gem_object_set_to_display_plane(struct drm_i915_gem_object *obj, } int -i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj) +i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj) { int ret; @@ -3058,6 +3058,9 @@ i915_gem_object_flush_gpu(struct drm_i915_gem_object *obj) return ret; } + /* Ensure that we invalidate the GPU's caches and TLBs. */ + obj->base.read_domains &= I915_GEM_GPU_DOMAINS; + return i915_gem_object_wait_rendering(obj); } diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 0d316e9..804821a 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1966,7 +1966,7 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, * This should only fail upon a hung GPU, in which case we * can safely continue. */ - ret = i915_gem_object_flush_gpu(obj); + ret = i915_gem_object_finish_gpu(obj); (void) ret; } -- 1.7.4.1 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
