[Intel-gfx] [PATCH v2] drm/i915/tgl: Implement Wa_1409142259

[Daniele Ceraolo Spurio]

On 9/9/19 4:14 PM, Radhakrishna Sripada wrote:
> Disable CPS aware color pipe by setting chicken bit.
> 
> BSpec: 52890
> HSDES: 1409142259
> 
> v2: Move WA to ctx WA's(Daniele)
> 
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> Cc: Stuart Summers <stuart.summers at intel.com>
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>

Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>

Daniele

> ---
>   drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++
>   drivers/gpu/drm/i915/i915_reg.h             | 1 +
>   2 files changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 243d3f77be13..95ef2f1dfdbb 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -567,6 +567,9 @@ static void icl_ctx_workarounds_init(struct intel_engine_cs *engine,
>   static void tgl_ctx_workarounds_init(struct intel_engine_cs *engine,
>   				     struct i915_wa_list *wal)
>   {
> +	/* Wa_1409142259 */
> +	WA_SET_BIT_MASKED(GEN11_COMMON_SLICE_CHICKEN3,
> +			  GEN12_DISABLE_CPS_AWARE_COLOR_PIPE);
>   }
>   
>   static void
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 006cffd56be2..53e07882efb7 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -7668,6 +7668,7 @@ enum {
>   
>   #define GEN11_COMMON_SLICE_CHICKEN3		_MMIO(0x7304)
>     #define GEN11_BLEND_EMB_FIX_DISABLE_IN_RCC	(1 << 11)
> +  #define GEN12_DISABLE_CPS_AWARE_COLOR_PIPE	(1 << 9)
>   
>   #define HIZ_CHICKEN					_MMIO(0x7018)
>   # define CHV_HZ_8X8_MODE_IN_1X				(1 << 15)
>