2014-09-05 17:57 GMT-03:00 Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>: > Avoid touching fbc register when fbc is disabled. Just a note: we avoid touching _one_ fbc register, but now we touch another one to check if FBC is enabled. OTOH we probably want to modify intel_fbc_enabled() to also not touch registers (since we run it dozens and dozens of times per second, even when FBC is disabled). So: Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> > > Cc: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> > --- > drivers/gpu/drm/i915/intel_pm.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 45f71e6..c3d3439 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -352,6 +352,9 @@ void gen8_fbc_sw_flush(struct drm_device *dev, u32 value) > if (!IS_GEN8(dev)) > return; > > + if (!intel_fbc_enabled(dev)) > + return; > + > I915_WRITE(MSG_FBC_REND_STATE, value); > } > > -- > 1.9.3 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Paulo Zanoni _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
