[CI,08/12] drm/i915/tgl: Wa_1409170338
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Message ID 20191015204451.19372-8-chris@chris-wilson.co.uk
State New
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Series
  • [CI,01/12] drm/i915/icl: Wa_1607087056
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Commit Message

Chris Wilson Oct. 15, 2019, 8:44 p.m. UTC
From: Mika Kuoppala <mika.kuoppala@linux.intel.com>

Avoid possible hang in tsg,vfe units by keeping
l3 clocks runnings.

Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191015154449.10338-7-mika.kuoppala@linux.intel.com
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++
 1 file changed, 6 insertions(+)

Patch
diff mbox series

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 7fea61b00b99..4f9be2eee132 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -907,6 +907,12 @@  tgl_gt_workarounds_init(struct drm_i915_private *i915, struct i915_wa_list *wal)
 		wa_write_or(wal,
 			    SUBSLICE_UNIT_LEVEL_CLKGATE2,
 			    CPSSUNIT_CLKGATE_DIS);
+
+	/* Wa_1409180338:tgl */
+	if (IS_TGL_REVID(i915, TGL_REVID_A0, TGL_REVID_A0))
+		wa_write_or(wal,
+			    SLICE_UNIT_LEVEL_CLKGATE,
+			    L3_CLKGATE_DIS | L3_CR2X_CLKGATE_DIS);
 }
 
 static void