[PATCH v4 1/1] drm/xe/xe2_lpg: Introduce performance guide changes

[Shekhar Chauhan]

Add performance guide changes to Xe2_LPG.

BSpec: 72161
Signed-off-by: Shekhar Chauhan <shekhar.chauhan at intel.com>
---
 drivers/gpu/drm/xe/regs/xe_gt_regs.h | 6 ++++++
 drivers/gpu/drm/xe/xe_tuning.c       | 9 ++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index 0d4bfc35ff37..cd27480f6486 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -144,6 +144,9 @@
 
 #define GSCPSMI_BASE				XE_REG(0x880c)
 
+#define CCCHKNREG1				XE_REG_MCR(0x8828)
+#define   ENCOMPPERFFIX				REG_BIT(18)
+
 /* Fuse readout registers for GT */
 #define XEHP_FUSE4				XE_REG(0x9114)
 #define   CFEG_WMTP_DISABLE			REG_BIT(20)
@@ -289,6 +292,9 @@
 #define XEHP_L3NODEARBCFG			XE_REG_MCR(0xb0b4)
 #define   XEHP_LNESPARE				REG_BIT(19)
 
+#define L3SQCREG3				XE_REG_MCR(0xb108)
+#define   COMPPWOVERFETCHEN			REG_BIT(28)
+
 #define XEHP_L3SQCREG5				XE_REG_MCR(0xb158)
 #define   L3_PWM_TIMER_INIT_VAL_MASK		REG_GENMASK(9, 0)
 
diff --git a/drivers/gpu/drm/xe/xe_tuning.c b/drivers/gpu/drm/xe/xe_tuning.c
index 53ccd338fd8c..5c83c75bc497 100644
--- a/drivers/gpu/drm/xe/xe_tuning.c
+++ b/drivers/gpu/drm/xe/xe_tuning.c
@@ -37,7 +37,14 @@ static const struct xe_rtp_entry_sr gt_tunings[] = {
 	  XE_RTP_ACTIONS(FIELD_SET(XE2LPM_L3SQCREG5, L3_PWM_TIMER_INIT_VAL_MASK,
 				   REG_FIELD_PREP(L3_PWM_TIMER_INIT_VAL_MASK, 0x7f)))
 	},
-
+	{ XE_RTP_NAME("Tuning: Compression Overfetch"),
+	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2004, XE_RTP_END_VERSION_UNDEFINED)),
+	  XE_RTP_ACTIONS(CLR(CCCHKNREG1, ENCOMPPERFFIX)),
+	},
+	{ XE_RTP_NAME("Tuning: Enable compressible partial write overfetch in L3"),
+	  XE_RTP_RULES(GRAPHICS_VERSION_RANGE(2004, XE_RTP_END_VERSION_UNDEFINED)),
+	  XE_RTP_ACTIONS(SET(L3SQCREG3, COMPPWOVERFETCHEN))
+	},
 	{}
 };
 
-- 
2.34.1