diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-05-28 10:29:51 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-05-28 12:45:29 +0100 |
| commit | 6951e5893b4821f68a48022842f67c3033ca7b30 (patch) | |
| tree | bc7d39fb7ae0b8ba3967646059ac40b931ae3ed8 /drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | |
| parent | 37d63f8fdb4941b6a82ef9e59bee62a494225c7e (diff) | |
drm/i915: Move GEM object domain management from struct_mutex to local
Use the per-object local lock to control the cache domain of the
individual GEM objects, not struct_mutex. This is a huge leap forward
for us in terms of object-level synchronisation; execbuffers are
coordinated using the ww_mutex and pread/pwrite is finally fully
serialised again.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190528092956.14910-10-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c index 625397deb701..a93e233cfaa9 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c @@ -151,7 +151,6 @@ static int i915_gem_dmabuf_mmap(struct dma_buf *dma_buf, struct vm_area_struct * static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction direction) { struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf); - struct drm_device *dev = obj->base.dev; bool write = (direction == DMA_BIDIRECTIONAL || direction == DMA_TO_DEVICE); int err; @@ -159,12 +158,12 @@ static int i915_gem_begin_cpu_access(struct dma_buf *dma_buf, enum dma_data_dire if (err) return err; - err = i915_mutex_lock_interruptible(dev); + err = i915_gem_object_lock_interruptible(obj); if (err) goto out; err = i915_gem_object_set_to_cpu_domain(obj, write); - mutex_unlock(&dev->struct_mutex); + i915_gem_object_unlock(obj); out: i915_gem_object_unpin_pages(obj); @@ -174,19 +173,18 @@ out: static int i915_gem_end_cpu_access(struct dma_buf *dma_buf, enum dma_data_direction direction) { struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf); - struct drm_device *dev = obj->base.dev; int err; err = i915_gem_object_pin_pages(obj); if (err) return err; - err = i915_mutex_lock_interruptible(dev); + err = i915_gem_object_lock_interruptible(obj); if (err) goto out; err = i915_gem_object_set_to_gtt_domain(obj, false); - mutex_unlock(&dev->struct_mutex); + i915_gem_object_unlock(obj); out: i915_gem_object_unpin_pages(obj); |