linux-kernel - Re: [PATCH] drm/xe/xe2lpg: Add WA 15016589081

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Message-ID: <ZvqajY_bLH_eULv5@gallifrey>
Date: Mon, 30 Sep 2024 12:33:17 +0000
From: "Dr. David Alan Gilbert" <linux@...blig.org>
To: Aradhya Bhatia <aradhya.bhatia@...el.com>
Cc: Rodrigo Vivi <rodrigo.vivi@...el.com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
	Intel XE List <intel-xe@...ts.freedesktop.org>,
	DRI Devel List <dri-devel@...ts.freedesktop.org>,
	Linux Kernel List <linux-kernel@...r.kernel.org>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Matt Roper <matthew.d.roper@...el.com>,
	Tejas Upadhyay <tejas.upadhyay@...el.com>,
	Himal Prasad Ghimiray <himal.prasad.ghimiray@...el.com>,
	Gustavo Sousa <gustavo.sousa@...el.com>
Subject: Re: [PATCH] drm/xe/xe2lpg: Add WA 15016589081

* Aradhya Bhatia (aradhya.bhatia@...el.com) wrote:
> Add workaround (wa) 15016589081 which applies to Xe2_v3_LPG_MD.

It would be great in this type of patch if you could
briefly say what symptom it fixes;  Some people might not know what
WA 15016589081  does.

Dave

> Xe2_v3_LPG_MD is a Lunar Lake platform with GFX version: 20.04.
> This wa is type: permanent, and hence is applicable on all steppings.
> 
> Signed-off-by: Aradhya Bhatia <aradhya.bhatia@...el.com>
> ---
>  drivers/gpu/drm/xe/xe_wa.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
> index 22c148b1e996..2f9cde4b7d45 100644
> --- a/drivers/gpu/drm/xe/xe_wa.c
> +++ b/drivers/gpu/drm/xe/xe_wa.c
> @@ -710,6 +710,10 @@ static const struct xe_rtp_entry_sr lrc_was[] = {
>  			     DIS_PARTIAL_AUTOSTRIP |
>  			     DIS_AUTOSTRIP))
>  	},
> +	{ XE_RTP_NAME("15016589081"),
> +	  XE_RTP_RULES(GRAPHICS_VERSION(2004), ENGINE_CLASS(RENDER)),
> +	  XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_CLIP_NEGATIVE_BOUNDING_BOX))
> +	},
>  
>  	/* Xe2_HPG */
>  	{ XE_RTP_NAME("15010599737"),
> 
> base-commit: 0c8650b09a365f4a31fca1d1d1e9d99c56071128
> -- 
> 2.34.1
> 
> 
-- 
 -----Open up your eyes, open up your mind, open up your code -------   
/ Dr. David Alan Gilbert    |       Running GNU/Linux       | Happy  \ 
\        dave @ treblig.org |                               | In Hex /
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