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drm/i915: Put "cooked" vlank counters in frame CRC lines

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Use drm_accurate_vblank_count so we have the full 32 bit to represent
the frame counter and userspace has a simpler way of knowing when the
counter wraps around.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170110134305.26326-3-tomeu.vizoso@collabora.com
This commit is contained in:
Tomeu Vizoso 2017-01-10 14:43:05 +01:00 committed by Daniel Vetter
parent 8c6b709d96
commit 246ee524a2
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/i915/i915_irq.c
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@ -1557,7 +1557,6 @@ static void display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
struct drm_driver *driver = dev_priv->drm.driver;
uint32_t crcs[5];
int head, tail;
u32 frame;
spin_lock(&pipe_crc->lock);
if (pipe_crc->source) {
@ -1612,8 +1611,9 @@ static void display_pipe_crc_irq_handler(struct drm_i915_private *dev_priv,
crcs[2] = crc2;
crcs[3] = crc3;
crcs[4] = crc4;
frame = driver->get_vblank_counter(&dev_priv->drm, pipe);
drm_crtc_add_crc_entry(&crtc->base, true, frame, crcs);
drm_crtc_add_crc_entry(&crtc->base, true,
drm_accurate_vblank_count(&crtc->base),
crcs);
}
}
#else