RC6p on Sandy Bridge got re-enabled over time, causing visual glitches
and GPU hangs.
Disabled originally in commit 1c8ecf80fdee ("drm/i915: do not enable
RC6p on Sandy Bridge").
Signed-off-by: Sasa Dragic <sasa.dragic@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_pci.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 668e9da52584..69377564028a 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -423,7 +423,8 @@ static const struct intel_device_info ilk_m_info = {
.has_coherent_ggtt = true, \
.has_llc = 1, \
.has_rc6 = 1, \
- .has_rc6p = 1, \
+ /* snb does support rc6p, but enabling it causes various issues */ \
+ .has_rc6p = 0, \
.has_rps = true, \
.dma_mask_size = 40, \
.__runtime.ppgtt_type = INTEL_PPGTT_ALIASING, \
--
2.37.2
