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authorGustavo Padovan <gustavo.padovan@collabora.co.uk>2016-11-15 15:37:08 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2016-11-16 10:42:48 +0100
commit6d6003c4b613c93973e4e870d83f4bed2ad9ac34 (patch)
tree8486cf846810b3065cdf28be5784fd7712697fa1 /include/drm/drm_crtc.h
parentdrm/fence: add in-fences support (diff)
downloadlinux-6d6003c4b613c93973e4e870d83f4bed2ad9ac34.tar.xz
linux-6d6003c4b613c93973e4e870d83f4bed2ad9ac34.zip
drm/fence: add fence timeline to drm_crtc
Create one timeline context for each CRTC to be able to handle out-fences and signal them. It adds a few members to struct drm_crtc: fence_context, where we store the context we get from fence_context_alloc(), the fence seqno and the fence lock, that we pass in fence_init() to be used by the fence. v2: Comment by Daniel Stone: - add BUG_ON() to fence_to_crtc() macro v3: Comment by Ville Syrjälä - Use more meaningful name as crtc timeline name v4: Comments by Brian Starkey - Use even more meaninful name for the crtc timeline - add doc for timeline_name Comment by Daniel Vetter - use in-line style for comments - rebase after fence -> dma_fence rename v5: Comment by Daniel Vetter - Add doc for drm_crtc_fence_ops v6: Comment by Chris Wilson - Move fence_to_crtc to drm_crtc.c - Move export of drm_crtc_fence_ops to drm_crtc_internal.h - rebase against latest drm-misc Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v5) Reviewed-by: Sean Paul <seanpaul@chromium.org> (v5) Tested-by: Robert Foss <robert.foss@collabora.com> (v5) Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479220628-10204-1-git-send-email-gustavo@padovan.org
Diffstat (limited to 'include/drm/drm_crtc.h')
-rw-r--r--include/drm/drm_crtc.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index bcc1a4d1d1a6..946672f97e1e 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -731,6 +731,35 @@ 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];
};
/**