It is fixed in B0 stepping.

Signed-off-by: José Roberto de Souza <[email protected]>
---
 drivers/gpu/drm/i915/intel_pm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e6d9ec124db8..9df150f877b1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -6838,8 +6838,9 @@ static void tgl_init_clock_gating(struct drm_i915_private 
*dev_priv)
        unsigned int i;
 
        /* Wa_1408615072:tgl */
-       intel_uncore_rmw(&dev_priv->uncore, UNSLICE_UNIT_LEVEL_CLKGATE2,
-                        0, VSUNIT_CLKGATE_DIS_TGL);
+       if (IS_TGL_GT_REVID(dev_priv, TGL_GT_REVID_A0, TGL_GT_REVID_A0))
+               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++) {
-- 
2.25.1

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