From: Ville Syrjälä Date: Wed, 22 Jan 2014 19:32:54 +0000 (+0200) Subject: drm/i915: Drop WaDisableRCZUnitClockGating:hsw X-Git-Tag: next-20140306~57^2~4^2~46 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=dfdf1b4fac3be70d19d1af72ea77725d2b029888;p=karo-tx-linux.git drm/i915: Drop WaDisableRCZUnitClockGating:hsw WaDisableRCZUnitClockGating was needed with early HSW steppings only. Signed-off-by: Ville Syrjälä Reviewed-by: Rodrigo Vivi Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 35e4bbbd6b0f..15815bd2bb67 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4765,11 +4765,6 @@ static void haswell_init_clock_gating(struct drm_device *dev) ilk_init_lp_watermarks(dev); - /* According to the spec, bit 13 (RCZUNIT) must be set on IVB. - * This implements the WaDisableRCZUnitClockGating:hsw workaround. - */ - I915_WRITE(GEN6_UCGCTL2, GEN6_RCZUNIT_CLOCK_GATE_DISABLE); - /* WaApplyL3ControlAndL3ChickenMode:hsw */ I915_WRITE(GEN7_L3CNTLREG1, GEN7_WA_FOR_GEN7_L3_CONTROL);