[PATCH] drm/xe/xe3lpg: Add Wa_16024792527

[apoorva.singh@intel.com]

From: Apoorva Singh <apoorva.singh@intel.com>

Force Sampler Tile64 Overfetch via MMIO

Signed-off-by: Apoorva Singh <apoorva.singh@intel.com>
---
 drivers/gpu/drm/xe/regs/xe_gt_regs.h | 2 ++
 drivers/gpu/drm/xe/xe_wa.c           | 6 ++++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/xe/regs/xe_gt_regs.h b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
index 0c9e4b2fafab..bd185a96a71a 100644
--- a/drivers/gpu/drm/xe/regs/xe_gt_regs.h
+++ b/drivers/gpu/drm/xe/regs/xe_gt_regs.h
@@ -445,6 +445,8 @@
 
 #define SAMPLER_MODE				XE_REG_MCR(0xe18c, XE_REG_OPTION_MASKED)
 #define   ENABLE_SMALLPL			REG_BIT(15)
+#define   SMP_WAIT_FETCH_MERGING_COUNTER_MASK	REG_GENMASK(11, 10)
+#define   SMP_FORCE_128B_OVERFETCH		REG_FIELD_PREP(SMP_WAIT_FETCH_MERGING_COUNTER_MASK, 1)
 #define   SC_DISABLE_POWER_OPTIMIZATION_EBB	REG_BIT(9)
 #define   SAMPLER_ENABLE_HEADLESS_MSG		REG_BIT(5)
 #define   INDIRECT_STATE_BASE_ADDR_OVERRIDE	REG_BIT(0)
diff --git a/drivers/gpu/drm/xe/xe_wa.c b/drivers/gpu/drm/xe/xe_wa.c
index 02cf647f86d8..7fa4c7bd1747 100644
--- a/drivers/gpu/drm/xe/xe_wa.c
+++ b/drivers/gpu/drm/xe/xe_wa.c
@@ -607,6 +607,12 @@ static const struct xe_rtp_entry_sr engine_was[] = {
 		       FUNC(xe_rtp_match_first_render_or_compute)),
 	  XE_RTP_ACTIONS(SET(ROW_CHICKEN4, DISABLE_TDL_PUSH))
 	},
+	{ XE_RTP_NAME("16024792527"),
+	  XE_RTP_RULES(GRAPHICS_VERSION(3000), GRAPHICS_STEP(A0, B0),
+		       FUNC(xe_rtp_match_first_render_or_compute)),
+	  XE_RTP_ACTIONS(FIELD_SET(SAMPLER_MODE, SMP_WAIT_FETCH_MERGING_COUNTER_MASK,
+				   SMP_FORCE_128B_OVERFETCH))
+	},
 
 	{}
 };
-- 
2.34.1