Re: [Intel-gfx] [PATCH 3/3] drm/i915/dg1: Move Wa_1806527549 to the right function

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On Mon, Mar 06, 2023 at 12:49:54PM -0800, Lucas De Marchi wrote:
> dg1_ctx_workarounds_init() is DG1-only, while
> gen12_ctx_workarounds_init() is shared with other platforms. Move the
> workaround to the former so there is no additional platform check
> needed.
> 
> Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/gt/intel_workarounds.c | 9 +++------
>  1 file changed, 3 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index 389bfcd299af..f68fe64f63a6 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -707,8 +707,6 @@ static void gen12_ctx_gt_tuning_init(struct intel_engine_cs *engine,
>  static void gen12_ctx_workarounds_init(struct intel_engine_cs *engine,
>  				       struct i915_wa_list *wal)
>  {
> -	struct drm_i915_private *i915 = engine->i915;
> -
>  	gen12_ctx_gt_tuning_init(engine, wal);
>  
>  	/*
> @@ -742,10 +740,6 @@ static void gen12_ctx_workarounds_init(struct intel_engine_cs *engine,
>  	       FF_MODE2_GS_TIMER_MASK,
>  	       FF_MODE2_GS_TIMER_224,
>  	       0, false);
> -
> -	if (!IS_DG1(i915))

I think you missed the "!" here.  I.e., this workaround applies to all
the "gen12" platforms *except* DG1.


Matt

> -		/* Wa_1806527549 */
> -		wa_masked_en(wal, HIZ_CHICKEN, HZ_DEPTH_TEST_LE_GE_OPT_DISABLE);
>  }
>  
>  static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine,
> @@ -760,6 +754,9 @@ static void dg1_ctx_workarounds_init(struct intel_engine_cs *engine,
>  	/* Wa_22010493298 */
>  	wa_masked_en(wal, HIZ_CHICKEN,
>  		     DG1_HZ_READ_SUPPRESSION_OPTIMIZATION_DISABLE);
> +
> +	/* Wa_1806527549 */
> +	wa_masked_en(wal, HIZ_CHICKEN, HZ_DEPTH_TEST_LE_GE_OPT_DISABLE);
>  }
>  
>  static void dg2_ctx_workarounds_init(struct intel_engine_cs *engine,
> -- 
> 2.39.0
> 

-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation



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