/**
* intel_gvt_create_idle_vgpu - create an idle virtual GPU
* @gvt: GVT device
*
* This function is called when user wants to create an idle virtual GPU.
*
* Returns:
* pointer to intel_vgpu, error pointer if failed.
*/
struct intel_vgpu *intel_gvt_create_idle_vgpu(struct intel_gvt *gvt)
{
struct intel_vgpu *vgpu;
enum intel_engine_id i;
int ret;
vgpu = vzalloc(sizeof(*vgpu));
if (!vgpu)
return ERR_PTR(-ENOMEM);
vgpu->id = IDLE_VGPU_IDR;
vgpu->gvt = gvt;
for (i = 0; i < I915_NUM_ENGINES; i++)
INIT_LIST_HEAD(&vgpu->workload_q_head[i]);
ret = intel_vgpu_init_sched_policy(vgpu);
if (ret)
goto out_free_vgpu;
vgpu->active = false;
return vgpu;
out_free_vgpu:
vfree(vgpu);
return ERR_PTR(ret);
}
static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
struct intel_vgpu_creation_params *param)
{
struct intel_vgpu *vgpu;
int ret;
gvt_dbg_core("handle %llu low %llu MB high %llu MB fence %llu\n",
param->handle, param->low_gm_sz, param->high_gm_sz,
param->fence_sz);
vgpu = vzalloc(sizeof(*vgpu));
if (!vgpu)
return ERR_PTR(-ENOMEM);
mutex_lock(&gvt->lock);
ret = idr_alloc(&gvt->vgpu_idr, vgpu, 1, GVT_MAX_VGPU, GFP_KERNEL);
if (ret < 0)
goto out_free_vgpu;
vgpu->id = ret;
vgpu->handle = param->handle;
vgpu->gvt = gvt;
bitmap_zero(vgpu->tlb_handle_pending, I915_NUM_ENGINES);
intel_vgpu_init_cfg_space(vgpu, param->primary);
ret = intel_vgpu_init_mmio(vgpu);
if (ret)
goto out_clean_idr;
ret = intel_vgpu_alloc_resource(vgpu, param);
if (ret)
goto out_clean_vgpu_mmio;
populate_pvinfo_page(vgpu);
ret = intel_gvt_hypervisor_attach_vgpu(vgpu);
if (ret)
goto out_clean_vgpu_resource;
ret = intel_vgpu_init_gtt(vgpu);
if (ret)
goto out_detach_hypervisor_vgpu;
ret = intel_vgpu_init_display(vgpu);
if (ret)
goto out_clean_gtt;
ret = intel_vgpu_init_execlist(vgpu);
if (ret)
goto out_clean_display;
ret = intel_vgpu_init_gvt_context(vgpu);
if (ret)
goto out_clean_execlist;
ret = intel_vgpu_init_sched_policy(vgpu);
if (ret)
goto out_clean_shadow_ctx;
vgpu->active = true;
mutex_unlock(&gvt->lock);
return vgpu;
out_clean_shadow_ctx:
intel_vgpu_clean_gvt_context(vgpu);
out_clean_execlist:
intel_vgpu_clean_execlist(vgpu);
out_clean_display:
intel_vgpu_clean_display(vgpu);
out_clean_gtt:
intel_vgpu_clean_gtt(vgpu);
out_detach_hypervisor_vgpu:
intel_gvt_hypervisor_detach_vgpu(vgpu);
out_clean_vgpu_resource:
intel_vgpu_free_resource(vgpu);
out_clean_vgpu_mmio:
intel_vgpu_clean_mmio(vgpu);
out_clean_idr:
idr_remove(&gvt->vgpu_idr, vgpu->id);
out_free_vgpu:
vfree(vgpu);
mutex_unlock(&gvt->lock);
return ERR_PTR(ret);
}
static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt,
struct intel_vgpu_creation_params *param)
{
struct intel_vgpu *vgpu;
int ret;
gvt_dbg_core("handle %llu low %llu MB high %llu MB fence %llu\n",
param->handle, param->low_gm_sz, param->high_gm_sz,
param->fence_sz);
vgpu = vzalloc(sizeof(*vgpu));
if (!vgpu)
return ERR_PTR(-ENOMEM);
mutex_lock(&gvt->lock);
ret = idr_alloc(&gvt->vgpu_idr, vgpu, IDLE_VGPU_IDR + 1, GVT_MAX_VGPU,
GFP_KERNEL);
if (ret < 0)
goto out_free_vgpu;
vgpu->id = ret;
vgpu->handle = param->handle;
vgpu->gvt = gvt;
vgpu->sched_ctl.weight = param->weight;
INIT_LIST_HEAD(&vgpu->dmabuf_obj_list_head);
idr_init(&vgpu->object_idr);
intel_vgpu_init_cfg_space(vgpu, param->primary);
ret = intel_vgpu_init_mmio(vgpu);
if (ret)
goto out_clean_idr;
ret = intel_vgpu_alloc_resource(vgpu, param);
if (ret)
goto out_clean_vgpu_mmio;
populate_pvinfo_page(vgpu);
ret = intel_gvt_hypervisor_attach_vgpu(vgpu);
if (ret)
goto out_clean_vgpu_resource;
ret = intel_vgpu_init_gtt(vgpu);
if (ret)
goto out_detach_hypervisor_vgpu;
ret = intel_vgpu_init_opregion(vgpu);
if (ret)
goto out_clean_gtt;
ret = intel_vgpu_init_display(vgpu, param->resolution);
if (ret)
goto out_clean_opregion;
ret = intel_vgpu_setup_submission(vgpu);
if (ret)
goto out_clean_display;
ret = intel_vgpu_init_sched_policy(vgpu);
if (ret)
goto out_clean_submission;
ret = intel_gvt_debugfs_add_vgpu(vgpu);
if (ret)
goto out_clean_sched_policy;
ret = intel_gvt_hypervisor_set_opregion(vgpu);
if (ret)
goto out_clean_sched_policy;
mutex_unlock(&gvt->lock);
return vgpu;
out_clean_sched_policy:
intel_vgpu_clean_sched_policy(vgpu);
out_clean_submission:
intel_vgpu_clean_submission(vgpu);
out_clean_display:
intel_vgpu_clean_display(vgpu);
out_clean_opregion:
intel_vgpu_clean_opregion(vgpu);
out_clean_gtt:
intel_vgpu_clean_gtt(vgpu);
out_detach_hypervisor_vgpu:
intel_gvt_hypervisor_detach_vgpu(vgpu);
out_clean_vgpu_resource:
intel_vgpu_free_resource(vgpu);
out_clean_vgpu_mmio:
intel_vgpu_clean_mmio(vgpu);
out_clean_idr:
idr_remove(&gvt->vgpu_idr, vgpu->id);
out_free_vgpu:
vfree(vgpu);
mutex_unlock(&gvt->lock);
return ERR_PTR(ret);
}