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drm/xe/tuning: Apply "Disable NULL query for Anyhit Shader" to Xe2

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Extend the "Disable NULL query for Anyhit Shader" tuning to Xe2
(graphics version 2000+) platforms, in addition to Xe3.

This sets the DIS_NULL_QUERY bit in RT_CTRL to disable null query
for Anyhit shaders on both Xe2 and Xe3.

This is a change in behavior that can regress a userspace not
prepared for it. However it's not feasible to change dynamically
the option per client or per exec queue via an opt-in flag. Mesa
is already prepared for that and it got propagated to their
stable versions. Even if it was possible, at this point adding a
flag would mean mesa would also need to propagate such a flag to
their stable versions, otherwise the previous fix would not be
used.

Signed-off-by: Nitin Gote <nitin.r.gote@intel.com>
Acked-by: Tapani Pälli <tapani.palli@intel.com>
Link: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35044
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35044
Link: https://lore.kernel.org/r/20250819061151.1272622-1-nitin.r.gote@intel.com
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
This commit is contained in:
Nitin Gote 2025-08-19 11:41:51 +05:30 committed by Lucas De Marchi
parent b85bb2d677
commit 6627be03d3
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/xe/xe_tuning.c
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@ -99,7 +99,7 @@ static const struct xe_rtp_entry_sr engine_tunings[] = {
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),
XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2000, XE_RTP_END_VERSION_UNDEFINED),
FUNC(xe_rtp_match_first_render_or_compute)),
XE_RTP_ACTIONS(SET(RT_CTRL, DIS_NULL_QUERY))
},