IPC Signal only support sys ram backend and CPU&GPU both accessible,
IPC Memory only support vram backend and only GPU accessible.
Reviewed-by: Flora Cui <flora.cui@amd.com>
Signed-off-by: tiancyin <tianci.yin@amd.com>
The legacy mode means buffer sharing through KFD, KFD provide a buffer
id to exporter, exporter pass it to importer, importer pass buffer id
to KFD to query and import this buffer.
The non-legcay mode relys on socket to pass dmabuf fd between processes.
In hsa-runtime, the legcay mode is the default mode, setting environment
variable HSA_ENABLE_IPC_MODE_LEGACY to 0 can force hsa-runtime to new
mode code path.
Reviewed-by: Flora Cui <flora.cui@amd.com>
Reviewed-by: Longlong Yao <Longlong.Yao@amd.com>
Signed-off-by: tiancyin <tianci.yin@amd.com>
Flora Cui
tiancyin