On 7/15/2016 7:19 PM, tim.gore@xxxxxxxxx wrote:
From: Tim Gore <tim.gore@xxxxxxxxx>
WaC6DisallowByGfxPause is currently applied unconditionally
but is not required in all revisions.
References: HSD#2133391
Signed-off-by: Tim Gore <tim.gore@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_guc_loader.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 605c696..173dcef 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -349,7 +349,9 @@ static int guc_ucode_xfer(struct drm_i915_private *dev_priv)
}
/* WaC6DisallowByGfxPause*/
- I915_WRITE(GEN6_GFXPAUSE, 0x30FFF);
+ if (IS_SKL_REVID(dev, 0, SKL_REVID_B0) ||
+ IS_BXT_REVID(dev, 0, BXT_REVID_A1))
I see this is applicable till BXT B0 and SKL C0 in wa_database. Am I
missing something?
+ I915_WRITE(GEN6_GFXPAUSE, 0x30FFF);
if (IS_BROXTON(dev))
I915_WRITE(GEN9LP_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
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