mirror of
https://github.com/autc04/Retro68.git
synced 2024-11-27 14:50:23 +00:00
54 lines
1.8 KiB
C++
54 lines
1.8 KiB
C++
/* Copyright (C) 2011 Free Software Foundation, Inc.
|
|
Contributed by Richard Henderson <rth@redhat.com>.
|
|
|
|
This file is part of the GNU Transactional Memory Library (libitm).
|
|
|
|
Libitm is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Libitm 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.
|
|
|
|
Under Section 7 of GPL version 3, you are granted additional
|
|
permissions described in the GCC Runtime Library Exception, version
|
|
3.1, as published by the Free Software Foundation.
|
|
|
|
You should have received a copy of the GNU General Public License and
|
|
a copy of the GCC Runtime Library Exception along with this program;
|
|
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
namespace GTM HIDDEN {
|
|
|
|
typedef struct gtm_jmpbuf
|
|
{
|
|
unsigned long long vfp[8]; /* d8-d15 */
|
|
unsigned long long iwmmxt[6]; /* cr10-cr15 */
|
|
unsigned long gr[8]; /* r4-r11 */
|
|
void *cfa;
|
|
unsigned long pc;
|
|
} gtm_jmpbuf;
|
|
|
|
/* ARM generally uses a fixed page size of 4K. */
|
|
#define PAGE_SIZE 4096
|
|
#define FIXED_PAGE_SIZE 1
|
|
|
|
/* ??? The size of one line in hardware caches (in bytes). */
|
|
#define HW_CACHELINE_SIZE 64
|
|
|
|
static inline void
|
|
cpu_relax (void)
|
|
{
|
|
/* ??? The kernel uses the condition
|
|
#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327)
|
|
Given that we're actually just waiting, it doesn't seem like it
|
|
hurts to simply use a full barrier all the time. */
|
|
__sync_synchronize ();
|
|
}
|
|
|
|
} // namespace GTM
|