libgomp/plugin: Add initial interop support to nvptx + gcn

The interop directive operates on an opaque object that represents a
foreign runtime. This commit adds support for
this to the two offloading plugins.

For nvptx, it supports cuda, cuda_driver and hip; the latter is AMD's
version of CUDA which for Nvidia devices boils down to normal CUDA.
Thus, at the end for this limited use, cuda/cuda_driver/hip are all
the same - and for plugin-nvptx.c, the they differ only in terms of
what gets fr_id, fr_name and get_interop_type_desc return.

For gcn, it supports hip and hsa.

Regarding get-mapped-ptr-1.c: That's actually a fix for the
GOMP_interop commit r15-8654-g99e2906ae255fc that added
GOMP_DEVICE_DEFAULT_OMP_61 alias omp_default_device, which is
a conforming device number. But that test used -5 as check for a
non-conforming device number.

libgomp/ChangeLog:

	* plugin/plugin-gcn.c (_LIBGOMP_PLUGIN_INCLUDE): Define.
	(struct hsa_runtime_fn_info): Add two queue functions.
	(hipError_t, hipCtx_t, hipStream_s, hipStream_t): New types.
	(struct hip_runtime_fn_info): New.
	(hip_runtime_lib, hip_fns): New global vars.
	(init_environment_variables): Handle hip_runtime_lib.
	(init_hsa_runtime_functions): Load the two queue functions.
	(init_hip_runtime_functions, GOMP_OFFLOAD_interop,
	GOMP_OFFLOAD_get_interop_int, GOMP_OFFLOAD_get_interop_ptr,
	GOMP_OFFLOAD_get_interop_str,
	GOMP_OFFLOAD_get_interop_type_desc): New.
	* plugin/plugin-nvptx.c (_LIBGOMP_PLUGIN_INCLUDE): Define.
	(GOMP_OFFLOAD_interop, GOMP_OFFLOAD_get_interop_int,
	GOMP_OFFLOAD_get_interop_ptr, GOMP_OFFLOAD_get_interop_str,
	GOMP_OFFLOAD_get_interop_type_desc): New.
	* testsuite/libgomp.c/interop-fr-1.c: New test.
	* testsuite/libgomp.c-c++-common/get-mapped-ptr-1.c: Use -6
	not -5 as non-conforming device number.

0 files changed, 0 insertions, 0 deletions