Fix hsaKmtRegisterMemory to be a no-op for now and move the multi-GPU
implementation to hsaKmtRegisterMemoryToNodes. Make GPU memory mappings
of host memory visible to all GPUs by default. Device memory is still
visible to the allocating GPU only by default (but can be overridden
with hsaKmtRegisterMemoryToNodes for experimenting with P2P).
Change-Id: I73408afbe3b10c8dad2ab3a780f58413249692e6
[ROCm/ROCR-Runtime commit: 063ad3ad9e]
hsaKmtAllocMemory only allocates aligned address space and sets up
the scratch_physical aperture to match the allocated address space.
Actual allocation of backing memory happens in hsaKmtMapMemoryToGPU.
Change-Id: Ie709815ab9bedb3d682e096b4005fdfb5e94d3a7
[ROCm/ROCR-Runtime commit: 5131ab4e64]
This is a hack to allow the Runtime to allocate system memory with
PreferredNode=0 on a dGPU system. We allocated it from Node 1
instead so that the node 1 GPU can map the memory. A proper fix
will be implemented together with multi-GPU support.
Change-Id: Ieb52599e5275781c04ee34405ea850bf782c523a
[ROCm/ROCR-Runtime commit: 590c8e522c]
The default is non-coherent access for better performance on dGPU.
Disabled hsaKmtSetMemoryPolicy function on dGPU to prevent app from
overriding the APE1 settings at runtime.
Fixed dGPU VM aperture limit to be inclusive.
Change-Id: I378ff74a654f533572775c0c97c19779a56bc6d9
[ROCm/ROCR-Runtime commit: 8e836f8183]
Felix Kuehling
Ben Goz
shaoyunl
Moses Reuben
Oded Gabbay
Xihan Zhang
Alexey Skidanov
Andrew Lewycky