On 12/8/22 5:07 AM, Jacek Lawrynowicz wrote:
Adds four types of GEM-based BOs for the VPU: - shmem - userptr
Do you have some specific need for userptr that would not be covered by prime import + heaps? I'm just trying to get a feel for the typical use-cases for these. Andrew
- internal - prime All types are implemented as struct ivpu_bo, based on struct drm_gem_object. VPU address is allocated when buffer is created except for imported prime buffers that allocate it in BO_INFO IOCTL due to missing file_priv arg in gem_prime_import callback. Internal buffers are pinned on creation, the rest of buffers types can be pinned on demand (in SUBMIT IOCTL). Buffer VPU address, allocated pages and mappings are relased when the buffer is destroyed. Eviction mechism is planned for future versions. Add three new IOCTLs: BO_CREATE, BO_INFO, BO_USERPTR Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@xxxxxxxxxxxxxxx>
