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drm/xe: Restore IDLEDLY regiter on engine reset

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Wa_16023105232 programs the register IDLEDLY. The register is reset
whenever the engine is reset. Therefore it should be added to the GuC
save-restore register list for it to be restored after reset.

Fixes: 7c53ff050b ("drm/xe: Apply Wa_16023105232")
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patch.msgid.link/20260522163531.1365540-2-balasubramani.vivekanandan@intel.com
Signed-off-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
(cherry picked from commit df1cfe2474)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This commit is contained in:
Balasubramani Vivekanandan
2026-05-27 11:27:22 -04:00
committed by Rodrigo Vivi
parent e7ae89a0c9
commit f657a6a3ba
1 changed files with 5 additions and 0 deletions
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drivers/gpu/drm/xe/xe_guc_ads.c
+5
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@@ -767,6 +767,11 @@ static unsigned int guc_mmio_regset_write(struct xe_guc_ads *ads,
}
}
if (XE_GT_WA(hwe->gt, 16023105232))
guc_mmio_regset_write_one(ads, regset_map,
RING_IDLEDLY(hwe->mmio_base),
count++);
return count;
}