1
#ifndef QEMU_CACHE_UTILS_H
2
#define QEMU_CACHE_UTILS_H
5
struct qemu_cache_conf {
6
unsigned long dcache_bsize;
7
unsigned long icache_bsize;
10
extern struct qemu_cache_conf qemu_cache_conf;
12
void qemu_cache_utils_init(char **envp);
14
/* mildly adjusted code from tcg-dyngen.c */
15
static inline void flush_icache_range(unsigned long start, unsigned long stop)
17
unsigned long p, start1, stop1;
18
unsigned long dsize = qemu_cache_conf.dcache_bsize;
19
unsigned long isize = qemu_cache_conf.icache_bsize;
21
start1 = start & ~(dsize - 1);
22
stop1 = (stop + dsize - 1) & ~(dsize - 1);
23
for (p = start1; p < stop1; p += dsize) {
24
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
26
asm volatile ("sync" : : : "memory");
28
start &= start & ~(isize - 1);
29
stop1 = (stop + isize - 1) & ~(isize - 1);
30
for (p = start1; p < stop1; p += isize) {
31
asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
33
asm volatile ("sync" : : : "memory");
34
asm volatile ("isync" : : : "memory");
38
#define qemu_cache_utils_init(envp) do { (void) (envp); } while (0)
41
#endif /* QEMU_CACHE_UTILS_H */