| From | Luis Henriques <> | Subject | [PATCH 3.16.y-ckt 012/135] drm/i915: Ban Haswell from using RCS flips | Date | Fri, 6 Feb 2015 11:59:50 +0000 |
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3.16.7-ckt6 -stable review patch. If anyone has any objections, please let me know.
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From: Chris Wilson <chris@chris-wilson.co.uk>
commit 48bf5b2d00bfeb681f6500c626189c7cd2c964d2 upstream.
Like Ivybridge, we have reports that we get random hangs when flipping with multiple pipes. Extend
commit 2a92d5bca1999b69c78f3c3e97b5484985b094b9 Author: Chris Wilson <chris@chris-wilson.co.uk> Date: Tue Jul 8 10:40:29 2014 +0100
drm/i915: Disable RCS flips on Ivybridge
to also apply to Haswell.
Reported-and-tested-by: Scott Tsai <scottt.tw@gmail.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87759 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> [ luis: backported to 3.16: adjusted context ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index abed8ee8e2d7..00ca8c9a314f 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9313,7 +9313,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, if (IS_VALLEYVIEW(dev)) { ring = &dev_priv->ring[BCS]; - } else if (IS_IVYBRIDGE(dev)) { + } else if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev)) { ring = &dev_priv->ring[BCS]; } else if (INTEL_INFO(dev)->gen >= 7) { ring = obj->ring; -- 2.1.4
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