On Wed, Aug 21, 2013 at 08:08:55AM -0700, Jesse Barnes wrote: > Turns out the BIOS will do this for us as needed, and if we try to do it > again we risk hangs or other bad behavior. > > Signed-off-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> Regressing commit citation missing and also cc: stable I guess? -Daniel > --- > drivers/gpu/drm/i915/intel_pm.c | 17 ----------------- > 1 file changed, 17 deletions(-) > > diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c > index 21f4c95..c823861 100644 > --- a/drivers/gpu/drm/i915/intel_pm.c > +++ b/drivers/gpu/drm/i915/intel_pm.c > @@ -4864,10 +4864,6 @@ static void gen6_init_clock_gating(struct drm_device *dev) > ILK_DPARBUNIT_CLOCK_GATE_ENABLE | > ILK_DPFDUNIT_CLOCK_GATE_ENABLE); > > - /* WaMbcDriverBootEnable:snb */ > - I915_WRITE(GEN6_MBCTL, I915_READ(GEN6_MBCTL) | > - GEN6_MBCTL_ENABLE_BOOT_FETCH); > - > g4x_disable_trickle_feed(dev); > > /* The default value should be 0x200 according to docs, but the two > @@ -4963,10 +4959,6 @@ static void haswell_init_clock_gating(struct drm_device *dev) > I915_WRITE(CACHE_MODE_1, > _MASKED_BIT_ENABLE(PIXEL_SUBSPAN_COLLECT_OPT_DISABLE)); > > - /* WaMbcDriverBootEnable:hsw */ > - I915_WRITE(GEN6_MBCTL, I915_READ(GEN6_MBCTL) | > - GEN6_MBCTL_ENABLE_BOOT_FETCH); > - > /* WaSwitchSolVfFArbitrationPriority:hsw */ > I915_WRITE(GAM_ECOCHK, I915_READ(GAM_ECOCHK) | HSW_ECOCHK_ARB_PRIO_SOL); > > @@ -5050,10 +5042,6 @@ static void ivybridge_init_clock_gating(struct drm_device *dev) > > g4x_disable_trickle_feed(dev); > > - /* WaMbcDriverBootEnable:ivb */ > - I915_WRITE(GEN6_MBCTL, I915_READ(GEN6_MBCTL) | > - GEN6_MBCTL_ENABLE_BOOT_FETCH); > - > /* WaVSRefCountFullforceMissDisable:ivb */ > gen7_setup_fixed_func_scheduler(dev_priv); > > @@ -5113,11 +5101,6 @@ static void valleyview_init_clock_gating(struct drm_device *dev) > I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) | > GEN7_SQ_CHICKEN_MBCUNIT_SQINTMOB); > > - /* WaMbcDriverBootEnable:vlv */ > - I915_WRITE(GEN6_MBCTL, I915_READ(GEN6_MBCTL) | > - GEN6_MBCTL_ENABLE_BOOT_FETCH); > - > - > /* According to the BSpec vol1g, bit 12 (RCPBUNIT) clock > * gating disable must be set. Failure to set it results in > * flickering pixels due to Z write ordering failures after > -- > 1.7.9.5 > > _______________________________________________ > Intel-gfx mailing list > Intel-gfx@xxxxxxxxxxxxxxxxxxxxx > http://lists.freedesktop.org/mailman/listinfo/intel-gfx -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
