drm/i915/guc: Drop legacy workarounds from guc_prepare_xfer
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@chris-wilson.co.uk> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171103151816.62048-3-michal.wajdeczko@intel.com Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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@ -104,16 +104,6 @@ static void guc_prepare_xfer(struct intel_guc *guc)
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/* Enable MIA caching. GuC clock gating is disabled. */
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I915_WRITE(GUC_SHIM_CONTROL, GUC_SHIM_CONTROL_VALUE);
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/* WaDisableMinuteIaClockGating:bxt */
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if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_A1)) {
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I915_WRITE(GUC_SHIM_CONTROL, (I915_READ(GUC_SHIM_CONTROL) &
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~GUC_ENABLE_MIA_CLOCK_GATING));
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}
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/* WaC6DisallowByGfxPause:bxt */
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if (IS_BXT_REVID(dev_priv, 0, BXT_REVID_B0))
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I915_WRITE(GEN6_GFXPAUSE, 0x30FFF);
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if (IS_GEN9_LP(dev_priv))
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I915_WRITE(GEN9LP_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
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else
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