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authorSasa Dragic <[email protected]>2022-12-19 18:29:27 +0100
committerRodrigo Vivi <[email protected]>2023-01-18 10:36:18 -0500
commit67b0b4ed259e425b7eed09da75b42c80682ca003 (patch)
tree19b47896445dea92be4bea9f554044198de9e334
parent8565c502e7c156d190d8e6d36e443f51b257f165 (diff)
drm/i915: re-disable RC6p on Sandy Bridge
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 <[email protected]> Signed-off-by: Ville Syrjälä <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected] Fixes: fb6db0f5bf1d ("drm/i915: Remove unsafe i915.enable_rc6") Fixes: 13c5a577b342 ("drm/i915/gt: Select the deepest available parking mode for rc6") Cc: [email protected] Reviewed-by: Rodrigo Vivi <[email protected]> (cherry picked from commit 0c8a6e9ea232c221976a0670256bd861408d9917) Signed-off-by: Rodrigo Vivi <[email protected]>
-rw-r--r--drivers/gpu/drm/i915/i915_pci.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index ccd1f864aa19..4fada7ebe8d8 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, \