[Intel-gfx] [PATCH] drm/i915/tgl: Make wa_1606700617 permanent

[Souza, Jose]

The change look good, it is just missing some commit description. I
know that there is no much to talk about but it is kind of a rule to
always have a description on kernel patches, something like will do:

Previously the issue that Wa_1606700617 was fixing would be fixed in B0
hardware but hardware team decide to make the Wa permanent.

Check the HSD maybe there is some relevant information there why now it
is permanent that you can add to the commit description.

On Tue, 2020-03-03 at 21:24 -0800, Swathi Dhanavanthri wrote:
> Bspec: 52890
> 
> Signed-off-by: Swathi Dhanavanthri <swathi.dhanavanthri at intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_workarounds.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> index cb7d85c42f13..a9d1975b5245 100644
> --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
> +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
> @@ -1337,11 +1337,6 @@ rcs_engine_wa_init(struct intel_engine_cs
> *engine, struct i915_wa_list *wal)
>  	struct drm_i915_private *i915 = engine->i915;
>  
>  	if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
> -		/* Wa_1606700617:tgl */
> -		wa_masked_en(wal,
> -			     GEN9_CS_DEBUG_MODE1,
> -			     FF_DOP_CLOCK_GATE_DISABLE);
> -
>  		/*
>  		 * Wa_1607138336:tgl
>  		 * Wa_1607063988:tgl
> @@ -1393,6 +1388,11 @@ rcs_engine_wa_init(struct intel_engine_cs
> *engine, struct i915_wa_list *wal)
>  		/* Wa_1409804808:tgl */
>  		wa_masked_en(wal, GEN7_ROW_CHICKEN2,
>  			     GEN12_PUSH_CONST_DEREF_HOLD_DIS);
> +
> +		/* Wa_1606700617:tgl */
> +		wa_masked_en(wal,
> +			     GEN9_CS_DEBUG_MODE1,
> +			     FF_DOP_CLOCK_GATE_DISABLE);
>  	}
>  
>  	if (IS_GEN(i915, 11)) {