[Intel-gfx] [PATCH] drm/i915/dg2: Add Wa_18018781329

[Dhanavanthri, Swathi]

Reviewed-by: Swathi Dhanavanthri <swathi.dhanavanthri at intel.com>

-----Original Message-----
From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Matt Roper
Sent: Thursday, January 20, 2022 3:42 PM
To: intel-gfx at lists.freedesktop.org
Subject: [Intel-gfx] [PATCH] drm/i915/dg2: Add Wa_18018781329

A few more MOD registers need to be programmed on DG2.

Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++
 drivers/gpu/drm/i915/i915_reg.h             | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 6a4372c3a3c5..748b2daf043f 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1509,6 +1509,12 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal)
 	 */
 	wa_write_or(wal, XEHP_L3SCQREG7, BLEND_FILL_CACHING_OPT_DIS);
 	wa_write_or(wal, GEN12_SQCM, EN_32B_ACCESS);
+
+	/* Wa_18018781329:dg2 */
+	wa_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB);
+	wa_write_or(wal, COMP_MOD_CTRL, FORCE_MISS_FTLB);
+	wa_write_or(wal, VDBX_MOD_CTRL, FORCE_MISS_FTLB);
+	wa_write_or(wal, VEBX_MOD_CTRL, FORCE_MISS_FTLB);
 }
 
 static void
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 460bce5c544d..d587257f392a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -339,6 +339,10 @@
 #define   TAG_BLOCK_CLKGATE_DIS		REG_BIT(7)
 
 #define GEN12_MERT_MOD_CTRL		_MMIO(0xcf28)
+#define RENDER_MOD_CTRL			_MMIO(0xcf2c)
+#define COMP_MOD_CTRL			_MMIO(0xcf30)
+#define VDBX_MOD_CTRL			_MMIO(0xcf34)
+#define VEBX_MOD_CTRL			_MMIO(0xcf38)
 #define   FORCE_MISS_FTLB		REG_BIT(3)
 
 #define GAB_CTL				_MMIO(0x24000)
--
2.34.1