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| author | Matt Atwood <matthew.s.atwood@intel.com> | 2020-06-25 00:57:23 +0300 |
|---|---|---|
| committer | Lucas De Marchi <lucas.demarchi@intel.com> | 2020-06-27 01:55:45 +0300 |
| commit | af9e1032ff6ead528f5e7284a4b8e207550e63bc (patch) | |
| tree | bdd48b279952515e0d2dee00935e9ce3785f3334 /drivers/gpu/drm/i915/display/intel_display_power.c | |
| parent | 1e8110a6c347afdd8f2629815d691f0505b5023e (diff) | |
| download | linux-af9e1032ff6ead528f5e7284a4b8e207550e63bc.tar.xz | |
drm/i915/gen12: implement Wa_14011508470
Update code to reflect recent bspec changes
Bspec: 52890
Bspec: 53508
Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200624215723.2316-1-matthew.s.atwood@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display_power.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display_power.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c index 834162bc5a3f..8a277dfbc070 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.c +++ b/drivers/gpu/drm/i915/display/intel_display_power.c @@ -5298,6 +5298,7 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, { struct i915_power_domains *power_domains = &dev_priv->power_domains; struct i915_power_well *well; + u32 val; gen9_set_dc_state(dev_priv, DC_STATE_DISABLE); @@ -5331,6 +5332,13 @@ static void icl_display_core_init(struct drm_i915_private *dev_priv, if (resume && dev_priv->csr.dmc_payload) intel_csr_load_program(dev_priv); + + /* Wa_14011508470 */ + if (IS_GEN(dev_priv, 12)) { + val = DCPR_CLEAR_MEMSTAT_DIS | DCPR_SEND_RESP_IMM | + DCPR_MASK_LPMODE | DCPR_MASK_MAXLATENCY_MEMUP_CLR; + intel_uncore_rmw(&dev_priv->uncore, GEN11_CHICKEN_DCPR_2, 0, val); + } } static void icl_display_core_uninit(struct drm_i915_private *dev_priv) |