[OEM-5.6][PATCH 30/37] drm/i915/tgl: Make Wa_1606700617 permanent

[Timo Aaltonen]

From: Swathi Dhanavanthri <swathi.dhanavanthri at intel.com>

BugLink: https://bugs.launchpad.net/bugs/1868727

This workaround is to disable FF DOP Clock gating. The fix
in B0 was backed out due to timing reasons and decided to
be made permanent.

Bspec: 52890
Signed-off-by: Swathi Dhanavanthri <swathi.dhanavanthri at intel.com>
Reviewed-by: José Roberto de Souza <jose.souza at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305181204.28856-1-swathi.dhanavanthri@intel.com
(cherry picked from drm-intel-next commit b592322f50929a7bbdc542f85a803edf7cfc4d74)
Signed-off-by: Timo Aaltonen <timo.aaltonen at canonical.com>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 68a6fc473b02..0efa121b49d7 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1335,11 +1335,6 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 	struct drm_i915_private *i915 = engine->i915;
 
 	if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0)) {
-		/* Wa_1606700617:tgl */
-		wa_masked_en(wal,
-			     GEN9_CS_DEBUG_MODE1,
-			     FF_DOP_CLOCK_GATE_DISABLE);
-
 		/*
 		 * Wa_1607138336:tgl
 		 * Wa_1607063988:tgl
@@ -1391,6 +1386,11 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
 		/* Wa_1409804808:tgl */
 		wa_masked_en(wal, GEN7_ROW_CHICKEN2,
 			     GEN12_PUSH_CONST_DEREF_HOLD_DIS);
+
+		/* Wa_1606700617:tgl */
+		wa_masked_en(wal,
+			     GEN9_CS_DEBUG_MODE1,
+			     FF_DOP_CLOCK_GATE_DISABLE);
 	}
 
 	if (IS_GEN(i915, 11)) {
-- 
2.25.1