1 ! Copyright (C) 2010 Doug Coleman.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: accessors alien alien.data alien.destructors assocs
4 byte-arrays cuda cuda.ffi destructors fry io.encodings.string
5 io.encodings.utf8 kernel locals math namespaces sequences
7 QUALIFIED-WITH: alien.c-types c
10 : cuda-malloc ( n -- ptr )
11 [ { CUdeviceptr } ] dip
12 '[ _ cuMemAlloc cuda-error ] with-out-parameters ; inline
14 : cuda-malloc-type ( n type -- ptr )
15 c:heap-size * cuda-malloc ; inline
17 : cuda-free ( ptr -- )
18 cuMemFree cuda-error ; inline
22 : memcpy-device>device ( dest-ptr src-ptr count -- )
23 cuMemcpyDtoD cuda-error ; inline
25 : memcpy-device>array ( dest-array dest-index src-ptr count -- )
26 cuMemcpyDtoA cuda-error ; inline
28 : memcpy-array>device ( dest-ptr src-array src-index count -- )
29 cuMemcpyAtoD cuda-error ; inline
31 : memcpy-array>host ( dest-ptr src-array src-index count -- )
32 cuMemcpyAtoH cuda-error ; inline
34 : memcpy-host>array ( dest-array dest-index src-ptr count -- )
35 cuMemcpyHtoA cuda-error ; inline
37 : memcpy-array>array ( dest-array dest-index src-array src-ptr count -- )
38 cuMemcpyAtoA cuda-error ; inline
40 : memcpy-host>device ( dest-ptr src-ptr count -- )
41 cuMemcpyHtoD cuda-error ; inline
43 : memcpy-device>host ( dest-ptr src-ptr count -- )
44 cuMemcpyDtoH cuda-error ; inline
46 : host>device ( data -- ptr )
48 [ nip cuda-malloc dup ] [ memcpy-host>device ] 2bi ; inline
50 : device>host ( ptr len -- byte-array )
51 [ nip <byte-array> dup ] [ memcpy-device>host ] 2bi ; inline