| Message ID | 20191015154449.10338-7-mika.kuoppala@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [01/11] drm/i915/tgl: Add IS_TGL_REVID | expand |
Quoting Mika Kuoppala (2019-10-15 16:44:45) > Avoid possible hang in tsg,vfe units by keeping > l3 clocks runnings. > > Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> > --- > drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c > index b7d7fdc5ba90..4b7740aaf3bf 100644 > --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c > +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c > @@ -902,6 +902,12 @@ 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); > } I've seen this somewhere before... ;) Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> -Chris
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index b7d7fdc5ba90..4b7740aaf3bf 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -902,6 +902,12 @@ 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
Avoid possible hang in tsg,vfe units by keeping l3 clocks runnings. Signed-off-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++ 1 file changed, 6 insertions(+)