From: Ben Widawsky <benjamin.widawsky@linux.intel.com>
To: Intel GFX <intel-gfx@lists.freedesktop.org>
Cc: stable@vger.kernel.org
Subject: [PATCH 04/12] drm/i915: Implement WaDisableSDEUnitClockGating:bdw
Date: Fri, 21 Mar 2014 11:48:13 -0700 [thread overview]
Message-ID: <1395427701-13434-5-git-send-email-benjamin.widawsky@linux.intel.com> (raw)
In-Reply-To: <1395427701-13434-1-git-send-email-benjamin.widawsky@linux.intel.com>
From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[BDW 3.14 backport]
Cc: stable@vger.kernel.org
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
---
drivers/gpu/drm/i915/i915_reg.h | 3 +++
drivers/gpu/drm/i915/intel_pm.c | 4 ++++
2 files changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1240250..db70031 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4868,6 +4868,9 @@
#define GEN7_UCGCTL4 0x940c
#define GEN7_L3BANK2X_CLOCK_GATE_DISABLE (1<<25)
+#define GEN8_UCGCTL6 0x9430
+#define GEN8_SDEUNIT_CLOCK_GATE_DISABLE (1<<14)
+
#define GEN6_RPNSWREQ 0xA008
#define GEN6_TURBO_DISABLE (1<<31)
#define GEN6_FREQUENCY(x) ((x)<<25)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 7b79c18..a0c6add 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4758,6 +4758,10 @@ static void gen8_init_clock_gating(struct drm_device *dev)
I915_WRITE(GEN6_RC_SLEEP_PSMI_CONTROL,
_MASKED_BIT_ENABLE(GEN8_RC_SEMA_IDLE_MSG_DISABLE));
+
+ /* WaDisableSDEUnitClockGating:bdw */
+ I915_WRITE(GEN8_UCGCTL6, I915_READ(GEN8_UCGCTL6) |
+ GEN8_SDEUNIT_CLOCK_GATE_DISABLE);
}
static void haswell_init_clock_gating(struct drm_device *dev)
--
1.9.1
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next prev parent reply other threads:[~2014-03-21 18:48 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-21 18:48 [PATCH 00/12] Broadwell 3.14 backports Ben Widawsky
2014-03-21 18:48 ` [PATCH 01/12] drm/i915: Fix forcewake counts for gen8 Ben Widawsky
2014-03-21 18:48 ` [PATCH 02/12] drm/i915: Do forcewake reset on gen8 Ben Widawsky
2014-03-21 18:48 ` [PATCH 03/12] drm/i915: Disable semaphore wait event idle message on BDW Ben Widawsky
2014-03-21 18:48 ` Ben Widawsky [this message]
2014-03-21 18:48 ` [PATCH 05/12] drm/i915: We implement WaDisableAsyncFlipPerfMode:bdw Ben Widawsky
2014-03-21 18:48 ` [PATCH 06/12] drm/i915: Add a partial instruction shootdown workaround on Broadwell Ben Widawsky
2014-03-21 18:48 ` [PATCH 07/12] drm/i915: Add thread stall DOP clock gating " Ben Widawsky
2014-03-21 18:48 ` [PATCH 08/12] drm/i915/bdw: The TLB invalidation mechanism has been removed from INSTPM Ben Widawsky
2014-03-21 18:48 ` [PATCH 09/12] drm/i915: Don't clobber CHICKEN_PIPESL_1 on BDW Ben Widawsky
2014-03-21 18:48 ` [PATCH 10/12] drm/i915: don't flood the logs about bdw semaphores Ben Widawsky
2014-03-21 22:06 ` [PATCH 10/12] [v2] " Ben Widawsky
2014-03-21 18:48 ` [PATCH 11/12] drm/i915/bdw: Use scratch page table for GEN8 PPGTT Ben Widawsky
2014-03-21 18:48 ` [PATCH 12/12] drm/i915/bdw: Restore PPAT on thaw Ben Widawsky
2014-03-21 19:49 ` [PATCH 00/12] Broadwell 3.14 backports Daniel Vetter
2014-03-21 22:14 ` Ben Widawsky
2014-03-21 23:47 ` Greg KH
2014-03-22 0:06 ` Ben Widawsky
2014-03-22 0:17 ` Ben Widawsky
2014-03-22 11:29 ` Daniel Vetter
2014-03-22 0:51 ` Ben Widawsky
2014-03-22 11:34 ` Daniel Vetter
2014-03-24 23:14 ` Ausmus, James
2014-03-24 23:17 ` Ben Widawsky
2014-03-25 9:43 ` Daniel Vetter
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