drm/i915/tgl: Move and restrict Wa_1408615072

Following the changes in the previous patch
"drm/i915/gen11: Moving WAs to rcs_engine_wa_init()" also moving TGL
Wa_1408615072 to rcs_engine_wa_init() this way after a engine
reset it will be reapplied also restricting it to A0 as it is fixed in
B0 stepping.

BSpec: 52890
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200302231421.224322-2-jose.souza@intel.com

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 90e1c48..cb7d85c 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1380,6 +1380,10 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
                 * Wa_14010229206:tgl
                 */
                wa_masked_en(wal, GEN9_ROW_CHICKEN4, GEN12_DISABLE_TDL_PUSH);
+
+               /* Wa_1408615072:tgl */
+               wa_masked_en(wal, UNSLICE_UNIT_LEVEL_CLKGATE2,
+                            VSUNIT_CLKGATE_DIS_TGL);
        }
 
        if (IS_TIGERLAKE(i915)) {

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 392cb85..2657236 100644 (file)
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6816,10 +6816,6 @@ static void tgl_init_clock_gating(struct drm_i915_private *dev_priv)
        u32 vd_pg_enable = 0;
        unsigned int i;
 
-       /* Wa_1408615072:tgl */
-       intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE2,
-                        0, VSUNIT_CLKGATE_DIS_TGL);
-
        /* This is not a WA. Enable VD HCP & MFX_ENC powergate */
        for (i = 0; i < I915_MAX_VCS; i++) {
                if (HAS_ENGINE(dev_priv, _VCS(i)))