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authorDaniel Drake <drake@endlessm.com>2019-04-23 12:28:10 +0300
committerJoonas Lahtinen <joonas.lahtinen@linux.intel.com>2019-05-13 13:45:46 +0300
commit396dd8143bdd94bd1c358a228a631c8c895a1126 (patch)
treec87789ec701b1cc9fb068b4639853fd1a26262bc /drivers/gpu
parent23372cce8fe7ee98a6458fd3d035a55b87f0c6fe (diff)
downloadlinux-396dd8143bdd94bd1c358a228a631c8c895a1126.tar.xz
drm/i915/fbc: disable framebuffer compression on GeminiLake
On many (all?) the Gemini Lake systems we work with, there is frequent momentary graphical corruption at the top of the screen, and it seems that disabling framebuffer compression can avoid this. The ticket was reported 6 months ago and has already affected a multitude of users, without any real progress being made. So, lets disable framebuffer compression on GeminiLake until a solution is found. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108085 Fixes: fd7d6c5c8f3e ("drm/i915: enable FBC on gen9+ too") Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: <stable@vger.kernel.org> # v4.11+ Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Drake <drake@endlessm.com> Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20190423092810.28359-1-jian-hong@endlessm.com (cherry picked from commit 1d25724b41fad7eeb2c3058a5c8190d6ece73e08) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_fbc.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_fbc.c b/drivers/gpu/drm/i915/intel_fbc.c
index c805a0966395..5679f2fffb7c 100644
--- a/drivers/gpu/drm/i915/intel_fbc.c
+++ b/drivers/gpu/drm/i915/intel_fbc.c
@@ -1280,6 +1280,10 @@ static int intel_sanitize_fbc_option(struct drm_i915_private *dev_priv)
if (!HAS_FBC(dev_priv))
return 0;
+ /* https://bugs.freedesktop.org/show_bug.cgi?id=108085 */
+ if (IS_GEMINILAKE(dev_priv))
+ return 0;
+
if (IS_BROADWELL(dev_priv) || INTEL_GEN(dev_priv) >= 9)
return 1;