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From: tim.gore@intel.com
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH] drm/i915:gen9: restrict WaC6DisallowByGfxPause
Date: Fri, 15 Jul 2016 14:49:26 +0100	[thread overview]
Message-ID: <1468590566-14951-1-git-send-email-tim.gore@intel.com> (raw)

From: Tim Gore <tim.gore@intel.com>

WaC6DisallowByGfxPause is currently applied unconditionally
but is not required in all revisions.

References: HSD#2133391
Signed-off-by: Tim Gore <tim.gore@intel.com>
---
 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))
+		I915_WRITE(GEN6_GFXPAUSE, 0x30FFF);
 
 	if (IS_BROXTON(dev))
 		I915_WRITE(GEN9LP_GT_PM_CONFIG, GT_DOORBELL_ENABLE);
-- 
1.9.1

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             reply	other threads:[~2016-07-15 13:49 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-15 13:49 tim.gore [this message]
2016-07-15 14:12 ` ✗ Ro.CI.BAT: failure for drm/i915:gen9: restrict WaC6DisallowByGfxPause Patchwork
2016-07-19  6:56 ` [PATCH] " Kamble, Sagar A
2016-07-19  9:56   ` Gore, Tim

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