Re: [PATCH v4 3/5] drm/i915/guc: Drop legacy workarounds from guc_prepare_xfer

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On 11/3/2017 8:48 PM, Michal Wajdeczko wrote:
We don't keep the workarounds for pre-production hardware
(see intel_detect_preproduction_hw) thus we can drop some
extra steps during firmware upload needed only for unsupported
platforms.

Suggested-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
Cc: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@xxxxxxxxx>
---
  drivers/gpu/drm/i915/intel_guc_fw.c | 10 ----------
  1 file changed, 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c
index 74a61fe..a63b5cf 100644
--- a/drivers/gpu/drm/i915/intel_guc_fw.c
+++ b/drivers/gpu/drm/i915/intel_guc_fw.c
@@ -104,16 +104,6 @@ static void guc_prepare_xfer(struct intel_guc *guc)
  	/* Enable MIA caching. GuC clock gating is disabled. */
  	I915_WRITE(GUC_SHIM_CONTROL, GUC_SHIM_CONTROL_VALUE);
- /* WaDisableMinuteIaClockGating:bxt */
-	if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) {
-		I915_WRITE(GUC_SHIM_CONTROL, (I915_READ(GUC_SHIM_CONTROL) &
-					      ~GUC_ENABLE_MIA_CLOCK_GATING));
-	}
-
-	/* WaC6DisallowByGfxPause:bxt */
-	if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_B0))
-		I915_WRITE(GEN6_GFXPAUSE, 0x30FFF);
-
  	if (IS_GEN9_LP(dev_priv))
  		I915_WRITE(GEN9LP_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
  	else

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