Re: [PATCH 2/3] drm/i915/glk: WA#0893: Also apply memory bw wa to Geminilake.

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On Fri, 2017-05-26 at 16:23 -0700, Rodrigo Vivi wrote:
> According to spec this WA is needed for every gen9.

Actually GLK has a gen10 display, so the gen9 workarounds don't apply.

Ander

> 
> Cc:Arthur Runyan <arthur.j.runyan@xxxxxxxxx>
> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@xxxxxxxxx>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_drv.h | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 5abeb3f..7a5f2e4 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -2904,9 +2904,8 @@ static inline struct scatterlist *__sg_next(struct scatterlist *sg)
>  #define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
>  	(IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))
>  
> -/* WA#0893 */
> -#define NEEDS_WaIncreaseMemoryBW(dev_priv)	(IS_GEN9_BC(dev_priv) || \
> -						 IS_BROXTON(dev_priv))
> +/* WA#0893: GEN9:ALL */
> +#define NEEDS_WaIncreaseMemoryBW(dev_priv)	(IS_GEN9(dev_priv))
>  
>  /*
>   * dp aux and gmbus irq on gen4 seems to be able to generate legacy interrupts
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