From: Yu Zhang <yu.c.zhang@linux.intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch
Subject: [PATCH v4 6/8] drm/i915: Disable power management for i915 driver in VM
Date: Tue, 10 Feb 2015 19:05:52 +0800 [thread overview]
Message-ID: <1423566354-5532-7-git-send-email-yu.c.zhang@linux.intel.com> (raw)
In-Reply-To: <1423566354-5532-1-git-send-email-yu.c.zhang@linux.intel.com>
With Intel GVT-g, GPU power management is controlled by
host driver, so there is no need to provide virtualized
GPU PM support. In the future it might be useful to gather
VM input for freq boost, but now let's disable it simply.
v2:
take Chris' comments:
- do not special case this to gen6+
Signed-off-by: Yu Zhang <yu.c.zhang@linux.intel.com>
Signed-off-by: Jike Song <jike.song@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
drivers/gpu/drm/i915/intel_pm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3c64810..177ff97 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5623,6 +5623,10 @@ void intel_enable_gt_powersave(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ /* Powersaving is controlled by the host when inside a VM */
+ if (intel_vgpu_active(dev))
+ return;
+
if (IS_IRONLAKE_M(dev)) {
mutex_lock(&dev->struct_mutex);
ironlake_enable_drps(dev);
--
1.9.1
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next prev parent reply other threads:[~2015-02-10 11:39 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-10 11:05 [PATCH v4 0/8] Add enlightenments for vGPU Yu Zhang
2015-02-10 11:05 ` [PATCH v4 1/8] drm/i915: Introduce a PV INFO page structure for Intel GVT-g Yu Zhang
2015-03-11 6:43 ` Dave Airlie
2015-02-10 11:05 ` [PATCH v4 2/8] drm/i915: Adds graphic address space ballooning logic Yu Zhang
2015-02-10 11:05 ` [PATCH v4 3/8] drm/i915: Partition the fence registers for vGPU in i915 driver Yu Zhang
2015-02-10 11:05 ` [PATCH v4 4/8] drm/i915: Disable framebuffer compression for i915 driver in VM Yu Zhang
2015-02-10 11:05 ` [PATCH v4 5/8] drm/i915: Add the display switch logic for vGPU in i915 driver Yu Zhang
2015-02-10 11:05 ` Yu Zhang [this message]
2015-02-10 11:05 ` [PATCH v4 7/8] drm/i915: Create vGPU specific MMIO operations to reduce traps Yu Zhang
2015-02-10 11:05 ` [PATCH v4 8/8] drm/i915: Support alias ppgtt in VM if ppgtt is enabled Yu Zhang
2015-02-10 12:11 ` [PATCH v4 0/8] Add enlightenments for vGPU Tvrtko Ursulin
2015-02-11 7:47 ` Yu, Zhang
2015-02-11 8:06 ` Daniel Vetter
2015-02-11 8:12 ` Yu, Zhang
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