[SRU][P:linux][PATCH 5/5] drm/xe/xe2hpg: Add Wa_16025250150

[Thibault Ferrante]

From: Aradhya Bhatia <aradhya.bhatia at intel.com>

BugLink: https://bugs.launchpad.net/bugs/2116175

Add Wa_16025250150 for the Xe2_HPG (graphics version: 20.01) platforms.
It is a permanent workaround, and applicable on all the steppings.

Reviewed-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250325134421.1489416-1-aradhya.bhatia@intel.com
Signed-off-by: Tejas Upadhyay <tejas.upadhyay at intel.com>
(cherry picked from commit 7654d51f1fd80f2d985a98beac4cd62d20afe3f9)
Signed-off-by: Pravalika Gurram <pravalika.gurram at intel.com>
Signed-off-by: Thibault Ferrante <thibault.ferrante at canonical.com>
---
 drivers/gpu/drm/xe/regs/xe_gt_regs.h | 12 ++++++++++++
 drivers/gpu/drm/xe/xe_wa.c           | 12 ++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index ab95d3545a72..6adbb2b160d1 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -386,6 +386,18 @@
 #define XEHP_L3NODEARBCFG			XE_REG_MCR(0xb0b4)
 #define   XEHP_LNESPARE				REG_BIT(19)
 
+#define LSN_VC_REG2				XE_REG_MCR(0xb0c8)
+#define   LSN_LNI_WGT_MASK			REG_GENMASK(31, 28)
+#define   LSN_LNI_WGT(value)			REG_FIELD_PREP(LSN_LNI_WGT_MASK, value)
+#define   LSN_LNE_WGT_MASK			REG_GENMASK(27, 24)
+#define   LSN_LNE_WGT(value)			REG_FIELD_PREP(LSN_LNE_WGT_MASK, value)
+#define   LSN_DIM_X_WGT_MASK			REG_GENMASK(23, 20)
+#define   LSN_DIM_X_WGT(value)			REG_FIELD_PREP(LSN_DIM_X_WGT_MASK, value)
+#define   LSN_DIM_Y_WGT_MASK			REG_GENMASK(19, 16)
+#define   LSN_DIM_Y_WGT(value)			REG_FIELD_PREP(LSN_DIM_Y_WGT_MASK, value)
+#define   LSN_DIM_Z_WGT_MASK			REG_GENMASK(15, 12)
+#define   LSN_DIM_Z_WGT(value)			REG_FIELD_PREP(LSN_DIM_Z_WGT_MASK, value)
+
 #define L3SQCREG2				XE_REG_MCR(0xb104)
 #define   COMPMEMRD256BOVRFETCHEN		REG_BIT(20)
 
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 1da5a76ea0bb..bc6eccfe7da4 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -230,6 +230,18 @@ static const struct xe_rtp_entry_sr gt_was[] = {
 	  XE_RTP_ENTRY_FLAG(FOREACH_ENGINE),
 	},
 
+	/* Xe2_HPG */
+
+	{ XE_RTP_NAME("16025250150"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2001)),
+	  XE_RTP_ACTIONS(SET(LSN_VC_REG2,
+			     LSN_LNI_WGT(1) |
+			     LSN_LNE_WGT(1) |
+			     LSN_DIM_X_WGT(1) |
+			     LSN_DIM_Y_WGT(1) |
+			     LSN_DIM_Z_WGT(1)))
+	},
+
 	/* Xe2_HPM */
 
 	{ XE_RTP_NAME("16021867713"),
-- 
2.48.1