| Message ID | 1349217826-2538-7-git-send-email-jbarnes@virtuousgeek.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, 2 Oct 2012 17:43:40 -0500 Jesse Barnes <jbarnes@virtuousgeek.org> wrote: > This allows us to get the right vblank interrupt frequency. > > Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> > --- > drivers/gpu/drm/i915/intel_pm.c | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 0659317..828629b 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -3687,6 +3687,13 @@ static void valleyview_init_clock_gating(struct drm_device *dev) > PIPEA_HLINE_INT_EN | PIPEA_VBLANK_INT_EN | > SPRITEB_FLIPDONE_INT_EN | SPRITEA_FLIPDONE_INT_EN | > PLANEA_FLIPDONE_INT_EN); > + > + /* > + * WaDisableVLVClockGating_VBIIssue > + * Disable clock gating on th GCFG unit to prevent a delay > + * in the reporting of vblank events. > + */ > + I915_WRITE(VLV_GUNIT_CLOCK_GATE, GCFG_DIS); > } > > static void g4x_init_clock_gating(struct drm_device *dev) This seems like only X0.
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 0659317..828629b 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -3687,6 +3687,13 @@ static void valleyview_init_clock_gating(struct drm_device *dev) PIPEA_HLINE_INT_EN | PIPEA_VBLANK_INT_EN | SPRITEB_FLIPDONE_INT_EN | SPRITEA_FLIPDONE_INT_EN | PLANEA_FLIPDONE_INT_EN); + + /* + * WaDisableVLVClockGating_VBIIssue + * Disable clock gating on th GCFG unit to prevent a delay + * in the reporting of vblank events. + */ + I915_WRITE(VLV_GUNIT_CLOCK_GATE, GCFG_DIS); } static void g4x_init_clock_gating(struct drm_device *dev)
This allows us to get the right vblank interrupt frequency. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> --- drivers/gpu/drm/i915/intel_pm.c | 7 +++++++ 1 file changed, 7 insertions(+)