Re: [PATCH 12/18] drm/i915/skl: Implement WaDisablePowerCompilerClockGating

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On Wed, Feb 18, 2015 at 09:57:52AM +0000, Nick Hoath wrote:
> On 11/02/2015 17:48, Lespiau, Damien wrote:
> >On Wed, Feb 11, 2015 at 03:29:51PM +0000, Nick Hoath wrote:
> >>On 09/02/2015 19:33, Damien Lespiau wrote:
> >>>Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
> >>>---
> >>>  drivers/gpu/drm/i915/i915_reg.h         | 5 +++--
> >>>  drivers/gpu/drm/i915/intel_ringbuffer.c | 8 ++++++++
> >>>  2 files changed, 11 insertions(+), 2 deletions(-)
> >>>
> >>>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> >>>index a457c28..fdfbdb3 100644
> >>>--- a/drivers/gpu/drm/i915/i915_reg.h
> >>>+++ b/drivers/gpu/drm/i915/i915_reg.h
> >>>@@ -5241,8 +5241,9 @@ enum skl_disp_power_wells {
> >>>  #define COMMON_SLICE_CHICKEN2			0x7014
> >>>  # define GEN8_CSC2_SBE_VUE_CACHE_CONSERVATIVE	(1<<0)
> >>>
> >>>-#define HIZ_CHICKEN				0x7018
> >>>-# define CHV_HZ_8X8_MODE_IN_1X			(1<<15)
> >>>+#define HIZ_CHICKEN					0x7018
> >>>+# define CHV_HZ_8X8_MODE_IN_1X				(1<<15)
> >>>+# define BDW_HIZ_POWER_COMPILER_CLOCK_GATING_DISABLE	(1<<3)
> >>>
> >>>  #define GEN9_SLICE_COMMON_ECO_CHICKEN0		0x7308
> >>>  #define  DISABLE_PIXEL_MASK_CAMMING		(1<<14)
> >>>diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>>index 27d101c..3135192 100644
> >>>--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>>+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
> >>>@@ -930,8 +930,16 @@ static int gen9_init_workarounds(struct intel_engine_cs *ring)
> >>>
> >>>  static int skl_init_workarounds(struct intel_engine_cs *ring)
> >>>  {
> >>>+	struct drm_device *dev = ring->dev;
> >>>+	struct drm_i915_private *dev_priv = dev->dev_private;
> >>>+
> >>>  	gen9_init_workarounds(ring);
> >>>
> >>>+	/* WaDisablePowerCompilerClockGating:skl */
> >>>+	if (INTEL_REVID(dev) == SKL_REVID_B0)
> >>
> >>Should this be <= ?
> >
> >Nop, both specs (SKL:GT2:B) and the wa db (SIWA_ONLY_SKL_B0) state
> >firmly B0 only.
> >
> 
> In that case:
> Reviewed-by: Nick Hoath <nicholas.hoath@xxxxxxxxx>

Queued for -next, thanks for the patch.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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