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| author | Yu Zhang | 2015-02-10 12:05:52 +0100 |
|---|---|---|
| committer | Daniel Vetter | 2015-02-13 23:28:25 +0100 |
| commit | f61018b1fe00238407724ea7a502003c3f71d9a0 (patch) | |
| tree | 979442843303d66271589e7b1b3b5f0374515b49 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915: Add the display switch logic for vGPU in i915 driver (diff) | |
| download | kernel-qcow2-linux-f61018b1fe00238407724ea7a502003c3f71d9a0.tar.gz kernel-qcow2-linux-f61018b1fe00238407724ea7a502003c3f71d9a0.tar.xz kernel-qcow2-linux-f61018b1fe00238407724ea7a502003c3f71d9a0.zip | |
drm/i915: Disable power management for i915 driver in VM
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>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index a3b979deeeb1..9b9433f1e1c7 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); |