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drm/i915: optimize vblank waits in set_base_atomic

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We only need to do them if the pipe is actually running and if the
framebuffers have changed. Removes two "wait for vblank timed out"
messages when doing a suspend/resume cycle on my i855gm.

v2: s/to_intel_ctrc(crtc)/intel_crtc/ spotted by Chris.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-06-02 17:23:01 +02:00
parent b51b32cde1
commit d7697eea3e
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/i915/intel_display.c
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@ -2212,7 +2212,8 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
crtc->y = y;
if (old_fb) {
intel_wait_for_vblank(dev, intel_crtc->pipe);
if (intel_crtc->active && old_fb != fb)
intel_wait_for_vblank(dev, intel_crtc->pipe);
intel_unpin_fb_obj(to_intel_framebuffer(old_fb)->obj);
}