diff options
| author | Ping Gao <ping.a.gao@intel.com> | 2017-03-30 00:36:39 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2017-03-30 13:34:07 +0800 |
| commit | afe04fbe6c522e73d5cc61a6660cce0e78630786 (patch) | |
| tree | 7722a11d3c7d1dd8b5e6866409dffe161af41bd8 /drivers/gpu/drm/i915/gvt/gvt.c | |
| parent | 39d467c2b71ccb4a55af830c117fafe0525caa12 (diff) | |
| download | lwn-afe04fbe6c522e73d5cc61a6660cce0e78630786.tar.gz lwn-afe04fbe6c522e73d5cc61a6660cce0e78630786.zip | |
drm/i915/gvt: create an idle vGPU
vGPU resource is allocated by scheduler. To account for non-allocated
free cycles, we create an idle vGPU as the placeholder similar to idle task
concept, which is useful to handle some corner cases in scheduling policy.
Signed-off-by: Ping Gao <ping.a.gao@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/gvt/gvt.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c index 894735c77f63..0f3a98865a58 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.c +++ b/drivers/gpu/drm/i915/gvt/gvt.c @@ -202,6 +202,8 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv) idr_destroy(&gvt->vgpu_idr); + intel_gvt_destroy_idle_vgpu(gvt->idle_vgpu); + kfree(dev_priv->gvt); dev_priv->gvt = NULL; } @@ -220,6 +222,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv) int intel_gvt_init_device(struct drm_i915_private *dev_priv) { struct intel_gvt *gvt; + struct intel_vgpu *vgpu; int ret; /* @@ -292,6 +295,14 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv) goto out_clean_types; } + vgpu = intel_gvt_create_idle_vgpu(gvt); + if (IS_ERR(vgpu)) { + ret = PTR_ERR(vgpu); + gvt_err("failed to create idle vgpu\n"); + goto out_clean_types; + } + gvt->idle_vgpu = vgpu; + gvt_dbg_core("gvt device initialization is done\n"); dev_priv->gvt = gvt; return 0; |