drm/i915/tgl: Make Wa_1606700617 permanent

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@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200305181204.28856-1-swathi.dhanavanthri@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 7be71a1..1d42bea 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1342,11 +1342,6 @@ 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
@@ -1398,6 +1393,11 @@ 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)) {