From: Ville Syrjälä Date: Wed, 22 Jan 2014 19:32:46 +0000 (+0200) Subject: drm/i915: Implement WaIncreaseL3CreditsForVLVB0:vlv X-Git-Tag: firefly_0821_release~176^2~4105^2~62^2~53 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=031994ee8dedfa69d3a7caa43e93f3c282bc38f9;p=firefly-linux-kernel-4.4.55.git drm/i915: Implement WaIncreaseL3CreditsForVLVB0:vlv Signed-off-by: Ville Syrjälä Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b958e854acb0..cbbaf261130a 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4128,6 +4128,9 @@ #define COMMON_SLICE_CHICKEN2 0x7014 # define GEN8_CSC2_SBE_VUE_CACHE_CONSERVATIVE (1<<0) +#define GEN7_L3SQCREG1 0xB010 +#define VLV_B0_WA_L3SQCREG1_VALUE 0x00D30000 + #define GEN7_L3CNTLREG1 0xB01C #define GEN7_WA_FOR_GEN7_L3_CONTROL 0x3C4FFF8C #define GEN7_L3AGDIS (1<<19) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 4960314a3611..58053f887b37 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4990,6 +4990,12 @@ static void valleyview_init_clock_gating(struct drm_device *dev) I915_WRITE(CACHE_MODE_1, _MASKED_BIT_ENABLE(PIXEL_SUBSPAN_COLLECT_OPT_DISABLE)); + /* + * WaIncreaseL3CreditsForVLVB0:vlv + * This is the hardware default actually. + */ + I915_WRITE(GEN7_L3SQCREG1, VLV_B0_WA_L3SQCREG1_VALUE); + /* * WaDisableVLVClockGating_VBIIssue:vlv * Disable clock gating on th GCFG unit to prevent a delay