diff options
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 20 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_execbuffer.c | 5 |
3 files changed, 15 insertions, 12 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 34d3f2fae8a..1af59d72ddc 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1841,7 +1841,7 @@ static inline bool i915_terminally_wedged(struct i915_gpu_error *error) } void i915_gem_reset(struct drm_device *dev); -void i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force); +bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force); int __must_check i915_gem_object_finish_gpu(struct drm_i915_gem_object *obj); int __must_check i915_gem_init(struct drm_device *dev); int __must_check i915_gem_init_hw(struct drm_device *dev); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 54d76e9392d..959dffba0f0 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -841,8 +841,8 @@ out: */ if (!needs_clflush_after && obj->base.write_domain != I915_GEM_DOMAIN_CPU) { - i915_gem_clflush_object(obj, obj->pin_display); - i915_gem_chipset_flush(dev); + if (i915_gem_clflush_object(obj, obj->pin_display)) + i915_gem_chipset_flush(dev); } } @@ -3224,7 +3224,7 @@ err_unpin: return ret; } -void +bool i915_gem_clflush_object(struct drm_i915_gem_object *obj, bool force) { @@ -3233,14 +3233,14 @@ i915_gem_clflush_object(struct drm_i915_gem_object *obj, * again at bind time. */ if (obj->pages == NULL) - return; + return false; /* * Stolen memory is always coherent with the GPU as it is explicitly * marked as wc by the system, or the system is cache-coherent. */ if (obj->stolen) - return; + return false; /* If the GPU is snooping the contents of the CPU cache, * we do not need to manually clear the CPU cache lines. However, @@ -3251,11 +3251,12 @@ i915_gem_clflush_object(struct drm_i915_gem_object *obj, * tracking. */ if (!force && cpu_cache_is_coherent(obj->base.dev, obj->cache_level)) - return; + return false; trace_i915_gem_object_clflush(obj); - drm_clflush_sg(obj->pages); + + return true; } /** Flushes the GTT write domain for the object if it's dirty. */ @@ -3295,8 +3296,9 @@ i915_gem_object_flush_cpu_write_domain(struct drm_i915_gem_object *obj, if (obj->base.write_domain != I915_GEM_DOMAIN_CPU) return; - i915_gem_clflush_object(obj, force); - i915_gem_chipset_flush(obj->base.dev); + if (i915_gem_clflush_object(obj, force)) + i915_gem_chipset_flush(obj->base.dev); + old_write_domain = obj->base.write_domain; obj->base.write_domain = 0; diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c index e999578a021..7dcf78cf678 100644 --- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c +++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c @@ -708,6 +708,7 @@ i915_gem_execbuffer_move_to_gpu(struct intel_ring_buffer *ring, { struct drm_i915_gem_object *obj; uint32_t flush_domains = 0; + bool flush_chipset = false; int ret; list_for_each_entry(obj, objects, exec_list) { @@ -716,12 +717,12 @@ i915_gem_execbuffer_move_to_gpu(struct intel_ring_buffer *ring, return ret; if (obj->base.write_domain & I915_GEM_DOMAIN_CPU) - i915_gem_clflush_object(obj, false); + flush_chipset |= i915_gem_clflush_object(obj, false); flush_domains |= obj->base.write_domain; } - if (flush_domains & I915_GEM_DOMAIN_CPU) + if (flush_chipset) i915_gem_chipset_flush(ring->dev); if (flush_domains & I915_GEM_DOMAIN_GTT) |