Re: [PATCH 35/89] drm/i915/skl: Implement Wa4x4STCOptimizationDisable:skl

[Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>]

Although I believe that we could have a init_workaround function for skl as we have for bdw and chv

On Wed, Sep 17, 2014 at 12:00 PM, Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote:

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>

On Thu, Sep 4, 2014 at 4:27 AM, Damien Lespiau <damien.lespiau@xxxxxxxxx> wrote:

Signed-off-by: Damien Lespiau <damien.lespiau@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0dc148c..c38baea 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -76,6 +76,10 @@ static void gen9_init_clock_gating(struct drm_device *dev)
         */
        I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
                   GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
+
+       /* Wa4x4STCOptimizationDisable:skl */
+       I915_WRITE(CACHE_MODE_1,
+                  _MASKED_BIT_ENABLE(GEN8_4x4_STC_OPTIMIZATION_DISABLE));
 }

 static void i8xx_disable_fbc(struct drm_device *dev)
--
1.8.3.1

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--

Rodrigo Vivi

Blog: http://blog.vivi.eng.br

 

--

Rodrigo Vivi

Blog: http://blog.vivi.eng.br

 

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