From: Chris Wilson Date: Tue, 8 Jul 2014 09:40:29 +0000 (+0100) Subject: drm/i915: Disable RCS flips on Ivybridge X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=2a92d5bca1999b69c78f3c3e97b5484985b094b9;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/i915: Disable RCS flips on Ivybridge We currently see random GPU hangs when using RCS flips with multiple pipes on Ivybridge. Now that we have mmio flips, we can fairly cheaply fallback to using CPU driven flips instead. Signed-off-by: Chris Wilson Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=77104 Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 8043e4b51ecd..8728c8885339 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9658,6 +9658,8 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, if (IS_VALLEYVIEW(dev)) { ring = &dev_priv->ring[BCS]; + } else if (IS_IVYBRIDGE(dev)) { + ring = &dev_priv->ring[BCS]; } else if (INTEL_INFO(dev)->gen >= 7) { ring = obj->ring; if (ring == NULL || ring->id != RCS)