[UR][HIP] Implement virtual and physical memory management#22671
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zjin-lcf wants to merge 1 commit into
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[UR][HIP] Implement virtual and physical memory management#22671zjin-lcf wants to merge 1 commit into
zjin-lcf wants to merge 1 commit into
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Port the CUDA adapter's virtual memory management support to HIP. This implements the previously stubbed urVirtualMem* and urPhysicalMem* entry points using the HIP VMM API (hipMemAddressReserve/Free, hipMemCreate/ Release, hipMemMap/Unmap, hipMemSetAccess, hipMemGetAccess and hipMemGetAllocationGranularity), mirroring the CUDA implementation but using ScopedDevice instead of ScopedContext. UR_DEVICE_INFO_VIRTUAL_MEMORY_SUPPORT now queries hipDeviceAttributeVirtualMemoryManagementSupported instead of hard-coding false, so the device advertises the ext_oneapi_virtual_mem aspect when the hardware supports it. Extend the vector_with_virtual_mem e2e test's kernel-copy workaround to cover HIP: the ROCm runtime returns hipErrorInvalidValue when a single copy spans two separately-reserved (though contiguous) address ranges, the same limitation the test already special-cases for Level Zero. All 7 sycl/test-e2e/VirtualMem tests pass on an AMD Instinct MI300A (gfx942). Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
urVirtualMem*(granularity, reserve, free, set/get access, map, unmap) andurPhysicalMem*(create, retain, release, get info) entry points via the HIP VMM API (hipMemAddressReserve/Free,hipMemCreate/Release,hipMemMap/Unmap,hipMemSetAccess,hipMemGetAccess,hipMemGetAllocationGranularity).UR_DEVICE_INFO_VIRTUAL_MEMORY_SUPPORTnow querieshipDeviceAttributeVirtualMemoryManagementSupportedinstead of hard-codingfalse, so the device advertises theext_oneapi_virtual_memaspect when supported.vector_with_virtual_meme2e test's kernel-copy workaround to cover HIP: ROCm returnshipErrorInvalidValuewhen a single copy spans two separately-reserved (though contiguous) ranges — the same limitation already special-cased for Level Zero.Test plan
sycl/test-e2e/VirtualMemtests pass on an AMD Instinct MI300A (gfx942).