From: Nick Hoath <nicholas.hoath@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [PATCH 3/4] drm/i915/bxt: Enable WaOCLCoherentLineFlush
Date: Mon, 29 Jun 2015 14:07:31 +0100 [thread overview]
Message-ID: <1435583252-29608-3-git-send-email-nicholas.hoath@intel.com> (raw)
In-Reply-To: <1435583252-29608-1-git-send-email-nicholas.hoath@intel.com>
Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Cc: Rafael Barbalho <rafael.barbalho@intel.com>
---
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_pm.c | 4 ++++
2 files changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index b9f6b8c..115911a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5807,6 +5807,7 @@ enum skl_disp_power_wells {
#define GEN7_WA_L3_CHICKEN_MODE 0x20000000
#define GEN7_L3SQCREG4 0xb034
+#define GEN8_PIPELINE_FLUSH_COHERENT_LINES (1<<21)
#define L3SQ_URB_READ_CAM_MATCH_DISABLE (1<<27)
#define GEN8_L3SQCREG4 0xb118
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index f29e575..26ef146 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -67,6 +67,10 @@ static void gen9_init_clock_gating(struct drm_device *dev)
I915_WRITE(GEN7_FF_THREAD_MODE,
I915_READ(GEN7_FF_THREAD_MODE) &
~(GEN8_FF_DS_REF_CNT_FFME | GEN7_FF_VS_REF_CNT_FFME));
+
+ /* WaOCLCoherentLineFlush:skl,bxt */
+ I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |
+ GEN8_PIPELINE_FLUSH_COHERENT_LINES);
}
static void skl_init_clock_gating(struct drm_device *dev)
--
2.1.1
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next prev parent reply other threads:[~2015-06-29 13:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-29 13:07 [PATCH 1/4] drm/i915/bxt: Enable WaVSRefCountFullforceMissDisable Nick Hoath
2015-06-29 13:07 ` [PATCH 2/4] drm/i915/bxt: Enable WaDSRefCountFullforceMissDisable Nick Hoath
2015-06-29 13:07 ` Nick Hoath [this message]
2015-06-29 13:07 ` [PATCH 4/4] drm/i915/bxt: Clean up bxt_init_clock_gating Nick Hoath
2015-06-29 14:29 ` Mika Kuoppala
2015-09-07 13:55 ` Nick Hoath
2015-09-07 16:19 ` Daniel Vetter
2015-06-30 2:56 ` shuang.he
2015-06-29 14:08 ` [PATCH 1/4] drm/i915/bxt: Enable WaVSRefCountFullforceMissDisable Mika Kuoppala
2015-06-29 14:19 ` Nick Hoath
2015-06-29 14:44 ` Mika Kuoppala
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