linux-kernel - [PATCH AUTOSEL 6.12 14/18] drm/xe/xe2hpg: Add Wa

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Message-Id: <20250519212208.1986028-14-sashal@kernel.org>
Date: Mon, 19 May 2025 17:22:03 -0400
From: Sasha Levin <sashal@...nel.org>
To: patches@...ts.linux.dev,
	stable@...r.kernel.org
Cc: Aradhya Bhatia <aradhya.bhatia@...el.com>,
	Gustavo Sousa <gustavo.sousa@...el.com>,
	Tejas Upadhyay <tejas.upadhyay@...el.com>,
	Matt Roper <matthew.d.roper@...el.com>,
	Lucas De Marchi <lucas.demarchi@...el.com>,
	Sasha Levin <sashal@...nel.org>,
	airlied@...ux.ie,
	daniel@...ll.ch,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 14/18] drm/xe/xe2hpg: Add Wa_22021007897

From: Aradhya Bhatia <aradhya.bhatia@...el.com>

[ Upstream commit b1f704107cf27906a9cea542b626b96019104663 ]

Add Wa_22021007897 for the Xe2_HPG (graphics version: 20.01) IP. It is
a permanent workaround, and applicable on all the steppings.

Reviewed-by: Gustavo Sousa <gustavo.sousa@...el.com>
Reviewed-by: Tejas Upadhyay <tejas.upadhyay@...el.com>
Signed-off-by: Aradhya Bhatia <aradhya.bhatia@...el.com>
Link: https://lore.kernel.org/r/20250512065004.2576-1-aradhya.bhatia@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@...el.com>
(cherry picked from commit e5c13e2c505b73a8667ef9a0fd5cbd4227e483e6)
Signed-off-by: Lucas De Marchi <lucas.demarchi@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/xe/regs/xe_gt_regs.h | 1 +
 drivers/gpu/drm/xe/xe_wa.c           | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index 5404de2aea545..c160b015d178a 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -157,6 +157,7 @@
 #define XEHPG_SC_INSTDONE_EXTRA2		XE_REG_MCR(0x7108)
 
 #define COMMON_SLICE_CHICKEN4			XE_REG(0x7300, XE_REG_OPTION_MASKED)
+#define   SBE_PUSH_CONSTANT_BEHIND_FIX_ENABLE	REG_BIT(12)
 #define   DISABLE_TDC_LOAD_BALANCING_CALC	REG_BIT(6)
 
 #define COMMON_SLICE_CHICKEN3				XE_REG(0x7304, XE_REG_OPTION_MASKED)
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 0a1905f8d380a..aea6034a81079 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -783,6 +783,10 @@ static const struct xe_rtp_entry_sr lrc_was[] = {
 	  XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
 	  XE_RTP_ACTIONS(SET(CHICKEN_RASTER_1, DIS_CLIP_NEGATIVE_BOUNDING_BOX))
 	},
+	{ XE_RTP_NAME("22021007897"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(2001), ENGINE_CLASS(RENDER)),
+	  XE_RTP_ACTIONS(SET(COMMON_SLICE_CHICKEN4, SBE_PUSH_CONSTANT_BEHIND_FIX_ENABLE))
+	},
 
 	/* Xe3_LPG */
 	{ XE_RTP_NAME("14021490052"),
-- 
2.39.5