From: Ben Widawsky <ben@bwidawsk.net>
To: intel-gfx@lists.freedesktop.org
Cc: Ben Widawsky <ben@bwidawsk.net>
Subject: [PATCH 2/4] drm/i915: Disable render depth cache pipeline flush
Date: Wed, 3 Oct 2012 19:34:22 -0700 [thread overview]
Message-ID: <1349318064-22051-2-git-send-email-ben@bwidawsk.net> (raw)
In-Reply-To: <1349318064-22051-1-git-send-email-ben@bwidawsk.net>
Required through gen6.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_pm.c | 2 ++
2 files changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d17bef7..37e62e0 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -662,6 +662,7 @@
#define MI_ARB_DISPLAY_PRIORITY_B_A (1 << 0) /* display B > display A */
#define CACHE_MODE_0 0x02120 /* 915+ only */
+#define CM0_RC_PIPELINE_FLUSH_DISABLE (1<<8)
#define CM0_IZ_OPT_DISABLE (1<<6)
#define CM0_ZR_OPT_DISABLE (1<<5)
#define CM0_STC_EVICT_DISABLE_LRA_SNB (1<<5)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index a3e4f8b..f1800ca 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3385,6 +3385,8 @@ static void gen6_init_clock_gating(struct drm_device *dev)
I915_WRITE(CACHE_MODE_0,
_MASKED_BIT_DISABLE(CM0_STC_EVICT_DISABLE_LRA_SNB));
+ I915_WRITE(CACHE_MODE_0,
+ _MASKED_BIT_ENABLE(CM0_RC_PIPELINE_FLUSH_DISABLE));
I915_WRITE(GEN6_UCGCTL1,
I915_READ(GEN6_UCGCTL1) |
--
1.7.12.2
next prev parent reply other threads:[~2012-10-04 2:35 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-04 2:34 [PATCH 1/4] drm/i915: Remove duplicate cache workaround Ben Widawsky
2012-10-04 2:34 ` Ben Widawsky [this message]
2012-10-04 2:34 ` [PATCH 3/4] drm/i915: ILK also needs that last fix Ben Widawsky
2012-10-15 18:59 ` Daniel Vetter
2012-10-16 3:21 ` Ben Widawsky
2012-10-16 7:16 ` Daniel Vetter
2012-10-04 2:34 ` [PATCH 4/4] drm/i915: Fix GT_MODE default value Ben Widawsky
2012-10-04 11:25 ` Daniel Vetter
2012-10-04 7:01 ` [PATCH 1/4] drm/i915: Remove duplicate cache workaround Daniel Vetter
2012-10-04 14:55 ` Ben Widawsky
2012-10-05 0:14 ` Ben Widawsky
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