[Intel-gfx] [PATCH v5 3/4] drm/i915/bdw: Pin the context backing objects to GGTT on-demand

Daniel Vetter daniel at ffwll.ch
Mon Nov 17 19:09:08 CET 2014


On Thu, Nov 13, 2014 at 10:28:10AM +0000, Thomas Daniel wrote:
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 059330c..3c7299d 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -655,6 +655,7 @@ struct intel_context {
>  	struct {
>  		struct drm_i915_gem_object *state;
>  		struct intel_ringbuffer *ringbuf;
> +		int unpin_count;

Pinning is already refcounted. Why this additional refcount?

And yes I've only realized this now that you've supplied the review
comments from Akash. I really rely upon the review discussions to spot
such low-level implementation details.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch



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