Oscar Mateo <oscar.mateo@xxxxxxxxx> writes:
> 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@xxxxxxxxxxxxxxx>
> Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_reg.h | 1 +
> drivers/gpu/drm/i915/intel_workarounds.c | 4 ++++
> 2 files changed, 5 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 4eb159f..924b9a6 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -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
> diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
> index 04aa885..1d29803 100644
> --- a/drivers/gpu/drm/i915/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/intel_workarounds.c
> @@ -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;
> }
>
> --
> 1.9.1
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