accel/ivpu: Add GEM buffer object management
Adds four types of GEM-based BOs for the VPU: - shmem - 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 released when the buffer is destroyed. Eviction mechanism is planned for future versions. Add two new IOCTLs: BO_CREATE, BO_INFO Signed-off-by:Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com> Reviewed-by:
Oded Gabbay <ogabbay@kernel.org> Reviewed-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20230117092723.60441-4-jacek.lawrynowicz@linux.intel.com
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