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drm/i915/icl: WaEnableStateCacheRedirectToCS

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Redirects the state cache to the CS Command buffer section for
performance reasons.

v2: Rebased
v3: Rebased on top of the WA refactoring
v3: Added References (Mika)

References: HSDES#1604325460
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1527285939-20113-3-git-send-email-oscar.mateo@intel.com
This commit is contained in:
Oscar Mateo 2018-05-25 15:05:30 -07:00 committed by Mika Kuoppala
parent 3c7ab27896
commit f63c7b4880
2 changed files with 5 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -7227,6 +7227,7 @@ enum {
#define DISABLE_PIXEL_MASK_CAMMING (1<<14)
#define GEN9_SLICE_COMMON_ECO_CHICKEN1 _MMIO(0x731c)
#define GEN11_STATE_CACHE_REDIRECT_TO_CS (1 << 11)
#define GEN7_L3SQCREG1 _MMIO(0xB010)
#define VLV_B0_WA_L3SQCREG1_VALUE 0x00D30000

4
drivers/gpu/drm/i915/intel_workarounds.c
View File

@ -470,6 +470,10 @@ static int icl_ctx_workarounds_init(struct drm_i915_private *dev_priv)
WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2,
GEN11_TDL_CLOCK_GATING_FIX_DISABLE);
/* WaEnableStateCacheRedirectToCS:icl */
WA_SET_BIT_MASKED(GEN9_SLICE_COMMON_ECO_CHICKEN1,
GEN11_STATE_CACHE_REDIRECT_TO_CS);
return 0;
}