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> --- 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
