root / include / qemu / cache-utils.h @ 1de7afc9
History | View | Annotate | Download (1.2 kB)
1 |
#ifndef QEMU_CACHE_UTILS_H
|
---|---|
2 |
#define QEMU_CACHE_UTILS_H
|
3 |
|
4 |
#if defined(_ARCH_PPC)
|
5 |
|
6 |
#include <stdint.h> /* uintptr_t */ |
7 |
|
8 |
struct qemu_cache_conf {
|
9 |
unsigned long dcache_bsize; |
10 |
unsigned long icache_bsize; |
11 |
}; |
12 |
|
13 |
extern struct qemu_cache_conf qemu_cache_conf; |
14 |
|
15 |
void qemu_cache_utils_init(char **envp); |
16 |
|
17 |
/* mildly adjusted code from tcg-dyngen.c */
|
18 |
static inline void flush_icache_range(uintptr_t start, uintptr_t stop) |
19 |
{ |
20 |
unsigned long p, start1, stop1; |
21 |
unsigned long dsize = qemu_cache_conf.dcache_bsize; |
22 |
unsigned long isize = qemu_cache_conf.icache_bsize; |
23 |
|
24 |
start1 = start & ~(dsize - 1);
|
25 |
stop1 = (stop + dsize - 1) & ~(dsize - 1); |
26 |
for (p = start1; p < stop1; p += dsize) {
|
27 |
asm volatile ("dcbst 0,%0" : : "r"(p) : "memory"); |
28 |
} |
29 |
asm volatile ("sync" : : : "memory"); |
30 |
|
31 |
start &= start & ~(isize - 1);
|
32 |
stop1 = (stop + isize - 1) & ~(isize - 1); |
33 |
for (p = start1; p < stop1; p += isize) {
|
34 |
asm volatile ("icbi 0,%0" : : "r"(p) : "memory"); |
35 |
} |
36 |
asm volatile ("sync" : : : "memory"); |
37 |
asm volatile ("isync" : : : "memory"); |
38 |
} |
39 |
|
40 |
#else
|
41 |
#define qemu_cache_utils_init(envp) do { (void) (envp); } while (0) |
42 |
#endif
|
43 |
|
44 |
#endif /* QEMU_CACHE_UTILS_H */ |