From 8c7b72f20b5d197bf70e93e87046def20eaa3f36 Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Thu, 24 Oct 2013 09:59:12 -0700 Subject: [PATCH] drm/i915: Remove WaFbcDisableDpfcClockGating on HSW Production HSW does not need it. I confirmed this with Art. Signed-off-by: Ben Widawsky Reviewed-by: Paulo Zanoni Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_reg.h | 3 --- drivers/gpu/drm/i915/intel_pm.c | 10 ---------- 2 files changed, 13 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index e4fef047a069..47de41f1d4b4 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -1106,9 +1106,6 @@ _HSW_PIPE_SLICE_CHICKEN_1_A, + \ _HSW_PIPE_SLICE_CHICKEN_1_B) -#define HSW_CLKGATE_DISABLE_PART_1 0x46500 -#define HSW_DPFC_GATING_DISABLE (1<<23) - /* * GPIO regs */ diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index c325a57b89b5..03b5a01c2d55 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -254,12 +254,6 @@ static void ironlake_disable_fbc(struct drm_device *dev) dpfc_ctl &= ~DPFC_CTL_EN; I915_WRITE(ILK_DPFC_CONTROL, dpfc_ctl); - if (IS_HASWELL(dev)) - /* WaFbcDisableDpfcClockGating:hsw */ - I915_WRITE(HSW_CLKGATE_DISABLE_PART_1, - I915_READ(HSW_CLKGATE_DISABLE_PART_1) & - ~HSW_DPFC_GATING_DISABLE); - DRM_DEBUG_KMS("disabled FBC\n"); } } @@ -293,10 +287,6 @@ static void gen7_enable_fbc(struct drm_crtc *crtc, unsigned long interval) /* WaFbcAsynchFlipDisableFbcQueue:hsw */ I915_WRITE(HSW_PIPE_SLICE_CHICKEN_1(intel_crtc->pipe), HSW_BYPASS_FBC_QUEUE); - /* WaFbcDisableDpfcClockGating:hsw */ - I915_WRITE(HSW_CLKGATE_DISABLE_PART_1, - I915_READ(HSW_CLKGATE_DISABLE_PART_1) | - HSW_DPFC_GATING_DISABLE); } I915_WRITE(SNB_DPFC_CTL_SA, -- 2.20.1