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From: Swathi Dhanavanthri <swathi.dhanavanthri@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH v2] drm/i915/dg2: Add workaround 22014600077
Date: Tue, 17 May 2022 14:29:05 -0700	[thread overview]
Message-ID: <20220517212905.24212-1-swathi.dhanavanthri@intel.com> (raw)

Signed-off-by: Swathi Dhanavanthri <swathi.dhanavanthri@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt_regs.h     |  1 +
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index 98ede9c93f00..2063c8758934 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -1068,6 +1068,7 @@
 #define   GEN9_ENABLE_GPGPU_PREEMPTION		REG_BIT(2)
 
 #define GEN10_CACHE_MODE_SS			_MMIO(0xe420)
+#define   ENABLE_EU_COUNT_FOR_TDL_FLUSH	        REG_BIT(10)
 #define   ENABLE_PREFETCH_INTO_IC		REG_BIT(3)
 #define   FLOAT_BLEND_OPTIMIZATION_ENABLE	REG_BIT(4)
 
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 756807c4b405..73b59ea6fd3b 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -2178,6 +2178,16 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 		wa_write_or(wal, GEN12_MERT_MOD_CTRL, FORCE_MISS_FTLB);
 	}
 
+	if (IS_DG2_GRAPHICS_STEP(i915, G11, STEP_B0, STEP_FOREVER) ||
+	    IS_DG2_G10(i915)) {
+		/* Wa_22014600077:dg2 */
+		wa_add(wal, GEN10_CACHE_MODE_SS, 0,
+		       _MASKED_BIT_ENABLE(ENABLE_EU_COUNT_FOR_TDL_FLUSH),
+		       0 /* Wa_14012342262 :write-only reg, so skip
+			    verification */,
+		       true);
+	}
+
 	if (IS_DG1_GRAPHICS_STEP(i915, STEP_A0, STEP_B0) ||
 	    IS_TGL_UY_GRAPHICS_STEP(i915, STEP_A0, STEP_B0)) {
 		/*
-- 
2.20.1


             reply	other threads:[~2022-05-17 21:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-17 21:29 Swathi Dhanavanthri [this message]
2022-05-17 22:23 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/dg2: Add workaround 22014600077 (rev2) Patchwork
2022-05-17 22:42 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2022-05-18  4:36 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2022-05-18 21:11   ` Dhanavanthri, Swathi
2022-05-18 22:21     ` Vudum, Lakshminarayana
2022-05-18 15:24 ` [Intel-gfx] [PATCH v2] drm/i915/dg2: Add workaround 22014600077 Matt Roper
2022-05-18 22:03 ` [Intel-gfx] ✓ Fi.CI.IGT: success for drm/i915/dg2: Add workaround 22014600077 (rev2) Patchwork
2022-05-19 16:54   ` Matt Roper

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