On Sat, 2013-11-02 at 21:07 -0700, Ben Widawsky wrote: > Implements WaVSRefCountFullforceMissDisable > Implements WaDSRefCountFullforceMissDisable > > v2: Rebased on the HSW patch (which fixed the bug from v1) > commit 41c0b3a88c7bae96d8e2ee60c7ed91f57fd152d7 > Author: Ben Widawsky <ben@xxxxxxxxxxxx> > Date: Sat Jan 26 11:52:00 2013 -0800 > > drm/i915: Implement WaVSRefCountFullforceMissDisable > > Cc: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Reviewed-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> > Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx> > --- > drivers/gpu/drm/i915/i915_reg.h | 1 + > drivers/gpu/drm/i915/intel_pm.c | 4 ++++ > 2 files changed, 5 insertions(+) > > diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h > index 9929750..68b877d 100644 > --- a/drivers/gpu/drm/i915/i915_reg.h > +++ b/drivers/gpu/drm/i915/i915_reg.h > @@ -990,6 +990,7 @@ > > #define GEN7_FF_THREAD_MODE 0x20a0 > #define GEN7_FF_SCHED_MASK 0x0077070 > +#define GEN7_FF_DS_REF_CNT_FFME (1 << 19) > #define GEN7_FF_TS_SCHED_HS1 (0x5<<16) > #define GEN7_FF_TS_SCHED_HS0 (0x3<<16) > #define GEN7_FF_TS_SCHED_LOAD_BALANCE (0x1<<16) > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index abc51ea..81ec2c3 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -5147,6 +5147,10 @@ static void gen7_setup_fixed_func_scheduler(struct drm_i915_private *dev_priv) > if (IS_HASWELL(dev_priv->dev)) > reg &= ~GEN7_FF_VS_REF_CNT_FFME; > > + /* WaVSRefCountFullforceMissDisable|WaDSRefCountFullforceMissDisable */ > + if (IS_GEN8(dev_priv->dev)) > + reg &= ~(GEN7_FF_DS_REF_CNT_FFME | GEN7_FF_VS_REF_CNT_FFME); > + > I915_WRITE(GEN7_FF_THREAD_MODE, reg); > } gen7_setup_fixed_func_scheduler() isn't called for GEN8. --Imre
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