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From: deepak.s@linux.intel.com
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH v2 2/4] drm/i915: Re-adjusting rc6 promotional timer for chv
Date: Thu, 19 Mar 2015 19:44:27 +0530	[thread overview]
Message-ID: <1426774469-11170-3-git-send-email-deepak.s@linux.intel.com> (raw)
In-Reply-To: <1426774469-11170-1-git-send-email-deepak.s@linux.intel.com>

From: Deepak S <deepak.s@linux.intel.com>

After feedback from the hardware team we are changing the RC6
promotional timer to increase the power saving without
changing performance.

Signed-off-by: Deepak S <deepak.s@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e18f0fd..6d04147 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4980,8 +4980,8 @@ static void cherryview_enable_rps(struct drm_device *dev)
 		I915_WRITE(RING_MAX_IDLE(ring->mmio_base), 10);
 	I915_WRITE(GEN6_RC_SLEEP, 0);
 
-	/* TO threshold set to 1750 us ( 0x557 * 1.28 us) */
-	I915_WRITE(GEN6_RC6_THRESHOLD, 0x557);
+	/* TO threshold set to 500 us ( 0x186 * 1.28 us) */
+	I915_WRITE(GEN6_RC6_THRESHOLD, 0x186);
 
 	/* allows RC6 residency counter to work */
 	I915_WRITE(VLV_COUNTER_CONTROL,
-- 
1.9.1

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  parent reply	other threads:[~2015-03-19 14:17 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-19 14:14 [PATCH v2 0/4] CHV PM fix & Improvements deepak.s
2015-03-19 14:14 ` [PATCH v2 1/4] drm/i915/chv: Remove Wait for a previous gfx force-off deepak.s
2015-03-19 14:14 ` deepak.s [this message]
2015-03-26 21:02   ` [PATCH v2 2/4] drm/i915: Re-adjusting rc6 promotional timer for chv Paulo Zanoni
2015-03-27  4:56     ` Deepak S
2015-03-19 14:14 ` [PATCH v2 3/4] drm/i915/chv: Set min freq to efficient frequency on chv deepak.s
2015-03-26 21:32   ` Paulo Zanoni
2015-03-26 21:43     ` Chris Wilson
2015-03-27  4:54       ` Deepak S
2015-03-19 14:14 ` [PATCH v2 4/4] drm/i915: Setup static bias for GPU deepak.s
2015-03-20  2:01   ` shuang.he

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