Introduced in OpenMP 6.0, the device UID shall be a unique identifier of a device on a given system. (Not necessarily a UUID.) Since it is not guaranteed that the (U)UIDs defined by the device vendor libraries, such as HSA, do not overlap with those of other vendors, the device UIDs in offload are always combined with the offload plugin name. In case the vendor library does not specify any device UID for a given device, we fall back to the offload-internal device ID. The device UID can be retrieved using the `llvm-offload-device-info` tool.
This is the total number of work items that the device supports (the equivalent work group properties are for only a single work group).
On my system, this will be "Radeon RX 7900 GRE" rather than "gfx1100". For Nvidia, the product name and device name are identical.
Add the following properties in Offload device info: * VENDOR_ID * NUM_COMPUTE_UNITS * [SINGLE|DOUBLE|HALF]_FP_CONFIG * NATIVE_VECTOR_WIDTH_[CHAR|SHORT|INT|LONG|FLOAT|DOUBLE|HALF] * MAX_CLOCK_FREQUENCY * MEMORY_CLOCK_RATE * ADDRESS_BITS * MAX_MEM_ALLOC_SIZE * GLOBAL_MEM_SIZE Add a bitfield option to enumerators, allowing the values to be bit-shifted instead of incremented. Generate the per-type enums using `foreach` to reduce code duplication. Use macros in unit test definitions to reduce code duplication.
`MAX_WORK_GROUP_SIZE` now represents the maximum total number of work groups the device can allocate, rather than the maximum per dimension. `MAX_WORK_GROUP_SIZE_PER_DIMENSION` has been added, which has the old behaviour.
This adds a new device info query for the maximum workgroup/block size for each dimension.
Summary: We use this sepcial type to indicate a host value, this will be refined later but for now it's used as a stand-in device for transfers and queues. It needs a special kind because it is not a device target as the other ones so we need to differentiate it between a CPU and GPU type. Fixes: https://github.com/llvm/llvm-project/issues/141436
Summary: This is done using the generic device into pointe, but no such thing exists for the host device, leading to a segfault. This patch fixes that for now, but in the future we should probably be more careful in general handling the possibility that the handle is null everywhere. Fixes: https://github.com/llvm/llvm-project/issues/141434
Adds a `check-offload-unit` target for running the liboffload unit test suite. This unit test binary runs the tests for every available device. This can optionally filtered to devices from a single platform, but the check target runs on everything. The target is not part of `check-offload` and does not get propagated to the top level build. I'm not sure if either of these things are desirable, but I'm happy to look into it if we want. Also remove the `offload/unittests/Plugins` test as it's dead code and doesn't build.