[PATCH] drm/xe/xe3: Disable null query for anyhit shader
Nitin Gote
nitin.r.gote at intel.com
Mon May 12 12:32:54 UTC 2025
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>
---
Hi Matt and Gustavo,
On PTL, Default value of DIS_NULL_QUERY bit of RT_CTRL is '0' only.
Last time, I have incorrectly read a value.
So, this change is required as per request.
Parallely, I will request to update bspec properly with default
value and also proper entry for tuning.
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)
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..6f2f3428b12e 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, 3001),
+ 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
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