diff options
Diffstat (limited to 'include/uapi/drm/xe_drm.h')
| -rw-r--r-- | include/uapi/drm/xe_drm.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/uapi/drm/xe_drm.h b/include/uapi/drm/xe_drm.h index 616916985e3f..6a702ba7817c 100644 --- a/include/uapi/drm/xe_drm.h +++ b/include/uapi/drm/xe_drm.h @@ -917,7 +917,11 @@ struct drm_xe_gem_mmap_offset { * struct drm_xe_vm_create - Input of &DRM_IOCTL_XE_VM_CREATE * * The @flags can be: - * - %DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE + * - %DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE - Map the whole virtual address + * space of the VM to scratch page. A vm_bind would overwrite the scratch + * page mapping. This flag is mutually exclusive with the + * %DRM_XE_VM_CREATE_FLAG_FAULT_MODE flag, with an exception of on x2 and + * xe3 platform. * - %DRM_XE_VM_CREATE_FLAG_LR_MODE - An LR, or Long Running VM accepts * exec submissions to its exec_queues that don't have an upper time * limit on the job execution time. But exec submissions to these @@ -1206,6 +1210,11 @@ struct drm_xe_vm_bind { * there is no need to explicitly set that. When a queue of type * %DRM_XE_PXP_TYPE_HWDRM is created, the PXP default HWDRM session * (%XE_PXP_HWDRM_DEFAULT_SESSION) will be started, if isn't already running. + * The user is expected to query the PXP status via the query ioctl (see + * %DRM_XE_DEVICE_QUERY_PXP_STATUS) and to wait for PXP to be ready before + * attempting to create a queue with this property. When a queue is created + * before PXP is ready, the ioctl will return -EBUSY if init is still in + * progress or -EIO if init failed. * Given that going into a power-saving state kills PXP HWDRM sessions, * runtime PM will be blocked while queues of this type are alive. * All PXP queues will be killed if a PXP invalidation event occurs. |