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/*
*
* Copyright (c) 2001-2006 Hewlett-Packard Development Company, L.P.
* Contributed by Stephane Eranian <eranian@hpl.hp.com>
*
* This program 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 2 of the
* License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
* 02111-1307 USA
*/
#include <sys/types.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#ifdef __GNUC__
static inline void
clear_psr_ac(void)
{
__asm__ __volatile__("rum psr.ac;;" ::: "memory" );
}
static inline unsigned long
get_umask(void)
{
unsigned long tmp;
asm volatile ("mov %0=psr.um" : "=r"(tmp));
return tmp;
}
#elif defined(__ECC) && defined(__INTEL_COMPILER)
#include <ia64intrin.h>
#define clear_psr_ac() __rum(1<<3)
#define get_umask() __getReg(IA64_PSR_L);
#else
#error "You need to define clear_psr_ac() for your compiler"
#endif
#define PFM_TEST_INVALID -1
#define PFM_TEST_VALID 0
static union {
unsigned long l_tab[2];
unsigned int i_tab[4];
unsigned short s_tab[8];
unsigned char c_tab[16];
} __attribute__((__aligned__(32))) messy;
/*
* 1 load, 1 store both unaligned
*/
int
do_two_una(unsigned long pace_count)
{
unsigned int *l, v;
unsigned long c = pace_count;
static unsigned int called;
called++;
l = (unsigned int *)(messy.c_tab+1);
if (((unsigned long)l & 0x1) == 0) {
printf("Data is not unaligned, can't run test\n");
return -1;
}
v = *l;
while(c) c--; /* space the accesses */
v++;
*l = v;
if (v != called) return -1;
return c == 0 ? 0: -1;
}
int
do_una_test1(unsigned long pace)
{
return do_two_una(pace);
}
int
do_una_test2(unsigned long pace)
{
return do_two_una(pace);
}
int
do_una_test(unsigned long count, unsigned long pace)
{
int ret;
ret = 0;
while (count-- && ret == 0) {
ret = count & 0x1 ? do_una_test1(pace) : do_una_test2(pace);
}
return ret;
}
int
main(int argc, char **argv)
{
unsigned long count, pace;
unsigned long umask;
umask = get_umask();
printf("default umask=0x%lx psr.ac=%ld\n", umask, (umask >> 3) & 0x1);
/* let the hardware do the unaligned access */
clear_psr_ac();
umask = get_umask();
printf("changed umask=0x%lx psr.ac=%ld\n", umask, (umask >> 3) & 0x1);
count = argc > 1 ? strtoul(argv[1], NULL, 10) : 1;
pace = argc > 2 ? strtoul(argv[2], NULL, 10) : 0;
return do_una_test(count, pace);
}
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