NvSciBufObj Permissions

• Applications have two options to specify their intended permissions on the NvSciBufObj:

  • Option 1 : Set the intended permissions to NvSciBufGeneralAttrKey_RequiredPerm attribute in the unreconciled attribute-list. If no permissions are specified by the application, NvSciBufAccessPerm_Readonly becomes default value.

  • Option 2 : Set the intended permissions in the object export/import APIs.

• The final permissions of the NvSciBufObj for an application is computed by NvSciBuf based on multiple factors explained below:

  • Applications that allocates the NvSciBufObj using NvSciBufObjAlloc or NvSciBufAttrListReconcileAndObjAlloc APIs will always get Read/Write permissions.

  • For applications importing the NvSciBufObj, the permissions are computed based the following: