[PATCH 2/2] UBUNTU: SAUCE: i915_bpo: Disable RC6 on SKL GT3 & GT4

[Timo Aaltonen]

From: Timo Aaltonen <timo.aaltonen at canonical.com>

http://bugs.launchpad.net/bugs/1564759

Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 ubuntu/i915/intel_pm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ubuntu/i915/intel_pm.c b/ubuntu/i915/intel_pm.c
index 40c36e5..01289e8 100644
--- a/ubuntu/i915/intel_pm.c
+++ b/ubuntu/i915/intel_pm.c
@@ -4620,6 +4620,11 @@ int sanitize_rc6_option(const struct drm_device *dev, int enable_rc6)
 	if (!enable_rc6)
 		return 0;
 
+	if (IS_SKL_GT3(dev) || IS_SKL_GT4(dev)) {
+		DRM_INFO("RC6 disabled on SKL GT3 & GT4, LP: #1564759\n");
+		return 0;
+	}
+
 	if (IS_BROXTON(dev) && !bxt_check_bios_rc6_setup(dev)) {
 		DRM_INFO("RC6 disabled by BIOS\n");
 		return 0;
-- 
2.7.4