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Commit 246ee524 authored by Tomeu Vizoso's avatar Tomeu Vizoso Committed by Daniel Vetter
Browse files

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



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: default avatarTomeu Vizoso <tomeu.vizoso@collabora.com>
Reviewed-by: default avatarEmil Velikov <emil.velikov@collabora.com>
Reviewed-by: default avatarRobert Foss <robert.foss@collabora.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170110134305.26326-3-tomeu.vizoso@collabora.com
parent 8c6b709d

drivers/gpu/drm/i915/i915_irq.c

+3 −3
Original line number Diff line number Diff line
@@ -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