drm/xe/xelpg: Add Wa_14020495402

Disable clockgating for TDL SVHS fub. v2: Extend the Wa to 1274(MattR) Bspec: 46045 Reviewed-by: Matt Roper <[email protected]> Signed-off-by: Radhakrishna Sripada <[email protected]> Reviewed-by: Matt Roper <[email protected]> Signed-off-by: Matt Roper <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
lutzbichler · Dec 20, 2024 · b762178 · b762178
1 parent f521fc0
commit b762178
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diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -364,6 +364,7 @@
 #define   DISABLE_EARLY_READ			REG_BIT(14)
 #define   ENABLE_LARGE_GRF_MODE			REG_BIT(12)
 #define   PUSH_CONST_DEREF_HOLD_DIS		REG_BIT(8)
+#define   DISABLE_TDL_SVHS_GATING		REG_BIT(1)
 #define   DISABLE_DOP_GATING			REG_BIT(0)
 
 #define RT_CTRL					XE_REG_MCR(0xe530)

diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
@@ -401,6 +401,11 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 	  XE_RTP_ACTIONS(SET(XEHP_HDC_CHICKEN0, DIS_ATOMIC_CHAINING_TYPED_WRITES,
 			     XE_RTP_NOCHECK))
 	},
+	{ XE_RTP_NAME("14020495402"),
+	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(1270, 1274),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(SET(ROW_CHICKEN2, DISABLE_TDL_SVHS_GATING))
+	},
 
 	/* Xe2_LPG */