diff options
| author | Jike Song <jike.song@intel.com> | 2016-11-03 18:38:33 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyuw@linux.intel.com> | 2016-11-10 15:45:13 +0800 |
| commit | 40df6ea07a15032e33b6f3d415bed0774547ec7e (patch) | |
| tree | 712ae3960c1d4a1ca72b74b1b1fc7c52a92a1675 /drivers | |
| parent | 8f89743bddec87b7e0eefe9895274653ce341059 (diff) | |
| download | lwn-40df6ea07a15032e33b6f3d415bed0774547ec7e.tar.gz lwn-40df6ea07a15032e33b6f3d415bed0774547ec7e.zip | |
drm/i915/gvt: introduce host_init/host_exit to MPT
GVT host needs init/exit hooks to do some initialization/cleanup
work, e.g.: vfio mdev host device register/unregister.
Signed-off-by: Jike Song <jike.song@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/gvt.c | 9 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/hypercall.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/mpt.h | 21 |
3 files changed, 32 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/gvt.c b/drivers/gpu/drm/i915/gvt/gvt.c index 48a67d1e1893..13db29d045a4 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.c +++ b/drivers/gpu/drm/i915/gvt/gvt.c @@ -193,6 +193,7 @@ void intel_gvt_clean_device(struct drm_i915_private *dev_priv) intel_gvt_clean_mmio_info(gvt); intel_gvt_free_firmware(gvt); + intel_gvt_hypervisor_host_exit(&dev_priv->drm.pdev->dev, gvt); intel_gvt_clean_vgpu_types(gvt); kfree(dev_priv->gvt); @@ -276,11 +277,19 @@ int intel_gvt_init_device(struct drm_i915_private *dev_priv) if (ret) goto out_clean_thread; + ret = intel_gvt_hypervisor_host_init(&dev_priv->drm.pdev->dev, gvt, + &intel_gvt_io_emulation_ops); + if (ret) { + gvt_err("failed to register gvt-g host device: %d\n", ret); + goto out_clean_types; + } gvt_dbg_core("gvt device initialization is done\n"); dev_priv->gvt = gvt; return 0; +out_clean_types: + intel_gvt_clean_vgpu_types(gvt); out_clean_thread: clean_service_thread(gvt); out_clean_cmd_parser: diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h index 193fd38a96af..f3e926340983 100644 --- a/drivers/gpu/drm/i915/gvt/hypercall.h +++ b/drivers/gpu/drm/i915/gvt/hypercall.h @@ -48,6 +48,8 @@ extern struct intel_gvt_io_emulation_ops intel_gvt_io_emulation_ops; */ struct intel_gvt_mpt { int (*detect_host)(void); + int (*host_init)(struct device *dev, void *gvt, const void *ops); + void (*host_exit)(struct device *dev, void *gvt); int (*attach_vgpu)(void *vgpu, unsigned long *handle); void (*detach_vgpu)(unsigned long handle); int (*inject_msi)(unsigned long handle, u32 addr, u16 data); diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h index 15e08dcb3199..93649b34798b 100644 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ b/drivers/gpu/drm/i915/gvt/mpt.h @@ -56,6 +56,27 @@ static inline int intel_gvt_hypervisor_detect_host(void) } /** + * intel_gvt_hypervisor_host_init - init GVT-g host side + * + * Returns: + * Zero on success, negative error code if failed + */ +static inline int intel_gvt_hypervisor_host_init(struct device *dev, + void *gvt, const void *ops) +{ + return intel_gvt_host.mpt->host_init(dev, gvt, ops); +} + +/** + * intel_gvt_hypervisor_host_exit - exit GVT-g host side + */ +static inline void intel_gvt_hypervisor_host_exit(struct device *dev, + void *gvt) +{ + intel_gvt_host.mpt->host_exit(dev, gvt); +} + +/** * intel_gvt_hypervisor_attach_vgpu - call hypervisor to initialize vGPU * related stuffs inside hypervisor. * |