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#include "qemu-common.h"
#include "qemu/cache-utils.h"
#if defined(_ARCH_PPC)
struct qemu_cache_conf qemu_cache_conf = {
.dcache_bsize = 16,
.icache_bsize = 16
};
#if defined _AIX
#include <sys/systemcfg.h>
void qemu_cache_utils_init(void)
{
qemu_cache_conf.icache_bsize = _system_configuration.icache_line;
qemu_cache_conf.dcache_bsize = _system_configuration.dcache_line;
}
#elif defined __linux__
#include "qemu/osdep.h"
#include "elf.h"
void qemu_cache_utils_init(void)
{
unsigned long dsize = qemu_getauxval(AT_DCACHEBSIZE);
unsigned long isize = qemu_getauxval(AT_ICACHEBSIZE);
if (dsize == 0 || isize == 0) {
if (dsize == 0) {
fprintf(stderr, "getauxval AT_DCACHEBSIZE failed\n");
}
if (isize == 0) {
fprintf(stderr, "getauxval AT_ICACHEBSIZE failed\n");
}
exit(1);
}
qemu_cache_conf.dcache_bsize = dsize;
qemu_cache_conf.icache_bsize = isize;
}
#elif defined __APPLE__
#include <stdio.h>
#include <sys/types.h>
#include <sys/sysctl.h>
void qemu_cache_utils_init(void)
{
size_t len;
unsigned cacheline;
int name[2] = { CTL_HW, HW_CACHELINE };
len = sizeof(cacheline);
if (sysctl(name, 2, &cacheline, &len, NULL, 0)) {
perror("sysctl CTL_HW HW_CACHELINE failed");
} else {
qemu_cache_conf.dcache_bsize = cacheline;
qemu_cache_conf.icache_bsize = cacheline;
}
}
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/sysctl.h>
void qemu_cache_utils_init(void)
{
size_t len = 4;
unsigned cacheline;
if (sysctlbyname ("machdep.cacheline_size", &cacheline, &len, NULL, 0)) {
fprintf(stderr, "sysctlbyname machdep.cacheline_size failed: %s\n",
strerror(errno));
exit(1);
}
qemu_cache_conf.dcache_bsize = cacheline;
qemu_cache_conf.icache_bsize = cacheline;
}
#endif
#endif /* _ARCH_PPC */
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