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| author | Sasa Dragic <sasa.dragic@gmail.com> | 2022-12-19 18:29:27 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-24 07:20:00 +0100 |
| commit | 59590f50ec9dee12c8c757c479b06c2fd7c370f5 (patch) | |
| tree | 8c93e0cdffaf004cbef0597bf165b2cf5f216fe9 | |
| parent | d960fff8e2c0e72df2e83785d60e11e0236b8f15 (diff) | |
| download | linux-59590f50ec9dee12c8c757c479b06c2fd7c370f5.tar.gz linux-59590f50ec9dee12c8c757c479b06c2fd7c370f5.tar.bz2 linux-59590f50ec9dee12c8c757c479b06c2fd7c370f5.zip | |
drm/i915: re-disable RC6p on Sandy Bridge
commit 67b0b4ed259e425b7eed09da75b42c80682ca003 upstream.
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@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219172927.9603-2-sasa.dragic@gmail.com
Fixes: fb6db0f5bf1d ("drm/i915: Remove unsafe i915.enable_rc6")
Fixes: 13c5a577b342 ("drm/i915/gt: Select the deepest available parking mode for rc6")
Cc: stable@vger.kernel.org
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 0c8a6e9ea232c221976a0670256bd861408d9917)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/i915/i915_pci.c | 3 |
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 fb5e30de78c2..63dc0fcfcc8e 100644 --- a/drivers/gpu/drm/i915/i915_pci.c +++ b/drivers/gpu/drm/i915/i915_pci.c @@ -403,7 +403,8 @@ 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, \ .ppgtt_type = INTEL_PPGTT_ALIASING, \ |