You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
2.4 KiB
C
56 lines
2.4 KiB
C
/*
|
|
Copyright 2005-2014 Intel Corporation. All Rights Reserved.
|
|
|
|
This file is part of Threading Building Blocks. Threading Building Blocks is free software;
|
|
you can redistribute it and/or modify it under the terms of the GNU General Public License
|
|
version 2 as published by the Free Software Foundation. Threading Building Blocks is
|
|
distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
|
|
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
|
|
See the GNU General Public License for more details. You should have received a copy of
|
|
the GNU General Public License along with Threading Building Blocks; if not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
As a special exception, you may use this file as part of a free software library without
|
|
restriction. Specifically, if other files instantiate templates or use macros or inline
|
|
functions from this file, or you compile this file and link it with other files to produce
|
|
an executable, this file does not by itself cause the resulting executable to be covered
|
|
by the GNU General Public License. This exception does not however invalidate any other
|
|
reasons why the executable file might be covered by the GNU General Public License.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <sys/atomic_op.h>
|
|
|
|
/* This file must be compiled with gcc. The IBM compiler doesn't seem to
|
|
support inline assembly statements (October 2007). */
|
|
|
|
#ifdef __GNUC__
|
|
|
|
int32_t __TBB_machine_cas_32 (volatile void* ptr, int32_t value, int32_t comparand) {
|
|
__asm__ __volatile__ ("sync\n"); /* memory release operation */
|
|
compare_and_swap ((atomic_p) ptr, &comparand, value);
|
|
__asm__ __volatile__ ("isync\n"); /* memory acquire operation */
|
|
return comparand;
|
|
}
|
|
|
|
int64_t __TBB_machine_cas_64 (volatile void* ptr, int64_t value, int64_t comparand) {
|
|
__asm__ __volatile__ ("sync\n"); /* memory release operation */
|
|
compare_and_swaplp ((atomic_l) ptr, &comparand, value);
|
|
__asm__ __volatile__ ("isync\n"); /* memory acquire operation */
|
|
return comparand;
|
|
}
|
|
|
|
void __TBB_machine_flush () {
|
|
__asm__ __volatile__ ("sync\n");
|
|
}
|
|
|
|
void __TBB_machine_lwsync () {
|
|
__asm__ __volatile__ ("lwsync\n");
|
|
}
|
|
|
|
void __TBB_machine_isync () {
|
|
__asm__ __volatile__ ("isync\n");
|
|
}
|
|
|
|
#endif /* __GNUC__ */
|