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| author |   Matt Roper <matthew.d.roper@intel.com> | 2019-12-31 11:07:13 -0800 |
|---|---|---|
| committer |   Joonas Lahtinen <joonas.lahtinen@linux.intel.com> | 2020-01-07 14:36:21 +0200 |
| commit | 25b79ad51bf04a8aa67b5bccd631fc05f963b8e0 (patch) | |
| tree | 1be24d4c18c97afd21e609c8ba1b2b527cb5dc08 /drivers/gpu | |
| parent | drm/i915: Add Wa_1408615072 and Wa_1407596294 to icl,ehl (diff) | |
| download | linux-dev-25b79ad51bf04a8aa67b5bccd631fc05f963b8e0.tar.xz linux-dev-25b79ad51bf04a8aa67b5bccd631fc05f963b8e0.zip | |
drm/i915: Add Wa_1407352427:icl,ehl
The workaround database now indicates we need to disable psdunit clock
gating as well.
v3:
- Rebase on top of other workarounds that have landed.
- Restrict cc:stable tag to 5.2+ since that's when ICL was first
officially supported.
Bspec: 32354
Bspec: 33450
Bspec: 33451
Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: stable@vger.kernel.org # v5.2+
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191231190713.1549533-1-matthew.d.roper@intel.com
(cherry picked from commit 1cd21a7c5679015352e8a6f46813aced51d71bb8)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 35d5a74569b4..094011b8f64d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4181,6 +4181,10 @@ enum { #define HSUNIT_CLKGATE_DIS REG_BIT(8) #define VSUNIT_CLKGATE_DIS REG_BIT(3) +#define UNSLICE_UNIT_LEVEL_CLKGATE2 _MMIO(0x94e4) +#define VSUNIT_CLKGATE_DIS_TGL REG_BIT(19) +#define PSDUNIT_CLKGATE_DIS REG_BIT(5) + #define INF_UNIT_LEVEL_CLKGATE _MMIO(0x9560) #define CGPSF_CLKGATE_DIS (1 << 3) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 7a884c867301..86379eddc908 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -6573,6 +6573,9 @@ static void icl_init_clock_gating(struct drm_i915_private *dev_priv) intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE, 0, VSUNIT_CLKGATE_DIS | HSUNIT_CLKGATE_DIS); + /* Wa_1407352427:icl,ehl */ + intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE2, + 0, PSDUNIT_CLKGATE_DIS); } static void tgl_init_clock_gating(struct drm_i915_private *dev_priv) |