[PATCH] drm/xe/xe3: Disable null query for anyhit shader

[Matt Roper]

On Thu, Jun 05, 2025 at 03:38:12PM +0530, Nitin Gote wrote:
> Set DIS_NULL_QUERY bit of RT_CTRL register to disable
> null query for anyhit shader for Xe3 IP.
> 
> Reviewed-by: Gustavo Sousa <gustavo.sousa at intel.com>
> Reviewed-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
> Signed-off-by: Nitin Gote <nitin.r.gote at intel.com>

Reviewed-by: Matt Roper <matthew.d.roper at intel.com>

and applied to drm-xe-next.  Thanks for the patch.


Matt

> ---
> 
> Changes in v2:
>   - Use xe3 IP and not ptl in commit title 
>     as this is  not platform specific.(Gustavo Sousa)
>   - Update a commit details properly (Matt)
> 
> Changes in v3:
>   - Use XE_RTP_END_VERSION_UNDEFINED as upper bound. (Matt)
> 
>  drivers/gpu/drm/xe/xe_tuning.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/gpu/drm/xe/xe_tuning.c b/drivers/gpu/drm/xe/xe_tuning.c
> index 49ddbda7cdef..828b45b24c23 100644
> --- a/drivers/gpu/drm/xe/xe_tuning.c
> +++ b/drivers/gpu/drm/xe/xe_tuning.c
> @@ -98,6 +98,11 @@ static const struct xe_rtp_entry_sr engine_tunings[] = {
>  		       ENGINE_CLASS(RENDER)),
>  	  XE_RTP_ACTIONS(SET(SAMPLER_MODE, INDIRECT_STATE_BASE_ADDR_OVERRIDE))
>  	},
> +	{ XE_RTP_NAME("Tuning: Disable NULL query for Anyhit Shader"),
> +	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(3000, XE_RTP_END_VERSION_UNDEFINED),
> +		       FUNC(xe_rtp_match_first_render_or_compute)),
> +	  XE_RTP_ACTIONS(SET(RT_CTRL, DIS_NULL_QUERY))
> +	},
>  };
>  
>  static const struct xe_rtp_entry_sr lrc_tunings[] = {
> -- 
> 2.25.1
> 

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