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drm/i915: We implement WaFbcWaitForVBlankBeforeEnable for ilk and snb

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We also wait for that blank on other platforms but the w/a doesn't
apply there. Not an issue at all.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Damien Lespiau 2013-06-07 17:41:07 +01:00 committed by Daniel Vetter
parent a0b3335a21
commit 7457d61748
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/intel_pm.c
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@ -404,6 +404,8 @@ static void intel_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
* following the termination of the page-flipping sequence
* and indeed performing the enable as a co-routine and not
* waiting synchronously upon the vblank.
*
* WaFbcWaitForVBlankBeforeEnable:ilk,snb
*/
schedule_delayed_work(&work->work, msecs_to_jiffies(50));
}