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drm/i915/gvt: introduce host_init/host_exit to MPT

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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>
This commit is contained in:
Jike Song 2016-11-03 18:38:33 +08:00 committed by Zhenyu Wang
parent 8f89743bdd
commit 40df6ea07a
3 changed files with 32 additions and 0 deletions
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9
drivers/gpu/drm/i915/gvt/gvt.c
View File

@ -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:

2
drivers/gpu/drm/i915/gvt/hypercall.h
View File

@ -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);

21
drivers/gpu/drm/i915/gvt/mpt.h
View File

@ -55,6 +55,27 @@ static inline int intel_gvt_hypervisor_detect_host(void)
return intel_gvt_host.mpt->detect_host();
}
/**
* 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.