mirror of
https://github.com/qemu/qemu.git
synced 2024-12-12 21:23:36 +08:00
e58ffeb322
According to $GCC/gcc/config/rs6000/rs6000-c.c _ARCH_PPC is the ubiquitous define which should be used to test whether gcc targets PowerPC, on 64bit platforms _ARCH_PPC64 will be also defined. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6301 c046a42c-6fe2-441c-8c8c-71466251a162
42 lines
1.1 KiB
C
42 lines
1.1 KiB
C
#ifndef QEMU_CACHE_UTILS_H
|
|
#define QEMU_CACHE_UTILS_H
|
|
|
|
#if defined(_ARCH_PPC)
|
|
struct qemu_cache_conf {
|
|
unsigned long dcache_bsize;
|
|
unsigned long icache_bsize;
|
|
};
|
|
|
|
extern struct qemu_cache_conf qemu_cache_conf;
|
|
|
|
extern void qemu_cache_utils_init(char **envp);
|
|
|
|
/* mildly adjusted code from tcg-dyngen.c */
|
|
static inline void flush_icache_range(unsigned long start, unsigned long stop)
|
|
{
|
|
unsigned long p, start1, stop1;
|
|
unsigned long dsize = qemu_cache_conf.dcache_bsize;
|
|
unsigned long isize = qemu_cache_conf.icache_bsize;
|
|
|
|
start1 = start & ~(dsize - 1);
|
|
stop1 = (stop + dsize - 1) & ~(dsize - 1);
|
|
for (p = start1; p < stop1; p += dsize) {
|
|
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
|
|
}
|
|
asm volatile ("sync" : : : "memory");
|
|
|
|
start &= start & ~(isize - 1);
|
|
stop1 = (stop + isize - 1) & ~(isize - 1);
|
|
for (p = start1; p < stop1; p += isize) {
|
|
asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
|
|
}
|
|
asm volatile ("sync" : : : "memory");
|
|
asm volatile ("isync" : : : "memory");
|
|
}
|
|
|
|
#else
|
|
#define qemu_cache_utils_init(envp) do { (void) (envp); } while (0)
|
|
#endif
|
|
|
|
#endif /* QEMU_CACHE_UTILS_H */
|