On Tue, Nov 15, 2016 at 10:57:35AM +0900, Gustavo Padovan wrote:
> diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
> index 11780a9..0870de1 100644
> --- a/include/drm/drm_crtc.h
> +++ b/include/drm/drm_crtc.h
> @@ -32,6 +32,8 @@
> #include <linux/fb.h>
> #include <linux/hdmi.h>
> #include <linux/media-bus-format.h>
> +#include <linux/srcu.h>
> +#include <linux/dma-fence.h>
> #include <uapi/drm/drm_mode.h>
> #include <uapi/drm/drm_fourcc.h>
> #include <drm/drm_modeset_lock.h>
> @@ -739,9 +741,52 @@ struct drm_crtc {
> */
> struct drm_crtc_crc crc;
> #endif
> +
> + /**
> + * @fence_context:
> + *
> + * timeline context used for fence operations.
> + */
> + unsigned int fence_context;
> +
> + /**
> + * @fence_lock:
> + *
> + * spinlock to protect the fences in the fence_context.
> + */
> +
> + spinlock_t fence_lock;
> + /**
> + * @fence_seqno:
> + *
> + * Seqno variable used as monotonic counter for the fences
> + * created on the CRTC's timeline.
> + */
> + unsigned long fence_seqno;
> +
> + /**
> + * @timeline_name:
> + *
> + * The name of the CRTC's fence timeline.
> + */
> + char timeline_name[32];
> };
>
> /**
> + * dma_crtc_fence_ops - fence ops for the drm_crtc timeline
> + *
> + * It contains the dma_fence_ops that should be called by the dma_fence
> + * code. CRTC core should use this ops when initializing fences.
> + */
> +extern const struct dma_fence_ops drm_crtc_fence_ops;
> +
> +static inline struct drm_crtc *fence_to_crtc(struct dma_fence *fence)
> +{
> + BUG_ON(fence->ops != &drm_crtc_fence_ops);
> + return container_of(fence->lock, struct drm_crtc, fence_lock);
> +}
If you are planning to export this for use by drivers, you are missing
the EXPORT_SYMBOL(drm_crtc_fence_ops).
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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