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authorJesse Barnes <jbarnes@virtuousgeek.org>2010-07-01 16:47:31 -0700
committerDave Airlie <airlied@redhat.com>2010-07-02 14:02:44 +1000
commitac2874b980e05ed7a4ea8fed7b0a92428b51ce58 (patch)
tree71c0c8e4abe395a46ca21d2bdc3493cce19719e7 /drivers/gpu/drm/drm_irq.c
parent97e0214044d9f279a3d6286c9f859696ef0b7ebe (diff)
downloadop-kernel-dev-ac2874b980e05ed7a4ea8fed7b0a92428b51ce58.zip
op-kernel-dev-ac2874b980e05ed7a4ea8fed7b0a92428b51ce58.tar.gz
drm: add vblank event trace point
Emit a trace point for vblank events. This can be helpful for mapping drawing activity against the vblank frequency and period. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/drm_irq.c')
-rw-r--r--drivers/gpu/drm/drm_irq.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index a263b70..6d201a8 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -34,6 +34,7 @@
*/
#include "drmP.h"
+#include "drm_trace.h"
#include <linux/interrupt.h> /* For task queue support */
#include <linux/slab.h>
@@ -754,6 +755,8 @@ void drm_handle_vblank_events(struct drm_device *dev, int crtc)
}
spin_unlock_irqrestore(&dev->event_lock, flags);
+
+ trace_drm_vblank_event(crtc, seq);
}
/**
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