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902b3d5c | 1 | #ifndef QEMU_CACHE_UTILS_H |
2 | #define QEMU_CACHE_UTILS_H | |
3 | ||
1eff7fbf | 4 | #include "config-host.h" |
5 | ||
395f153d | 6 | #if defined HOST_PPC || defined HOST_PPC64 |
902b3d5c | 7 | struct qemu_cache_conf { |
8 | unsigned long dcache_bsize; | |
9 | unsigned long icache_bsize; | |
10 | }; | |
11 | ||
12 | extern struct qemu_cache_conf qemu_cache_conf; | |
13 | ||
14 | extern void qemu_cache_utils_init(char **envp); | |
15 | ||
16 | /* mildly adjusted code from tcg-dyngen.c */ | |
17 | static inline void flush_icache_range(unsigned long start, unsigned long stop) | |
18 | { | |
19 | unsigned long p, start1, stop1; | |
20 | unsigned long dsize = qemu_cache_conf.dcache_bsize; | |
21 | unsigned long isize = qemu_cache_conf.icache_bsize; | |
22 | ||
23 | start1 = start & ~(dsize - 1); | |
24 | stop1 = (stop + dsize - 1) & ~(dsize - 1); | |
25 | for (p = start1; p < stop1; p += dsize) { | |
26 | asm volatile ("dcbst 0,%0" : : "r"(p) : "memory"); | |
27 | } | |
28 | asm volatile ("sync" : : : "memory"); | |
29 | ||
30 | start &= start & ~(isize - 1); | |
31 | stop1 = (stop + isize - 1) & ~(isize - 1); | |
32 | for (p = start1; p < stop1; p += isize) { | |
33 | asm volatile ("icbi 0,%0" : : "r"(p) : "memory"); | |
34 | } | |
35 | asm volatile ("sync" : : : "memory"); | |
36 | asm volatile ("isync" : : : "memory"); | |
37 | } | |
38 | ||
39 | #else | |
40 | #define qemu_cache_utils_init(envp) do { (void) (envp); } while (0) | |
41 | #endif | |
42 | ||
43 | #endif /* QEMU_CACHE_UTILS_H */ |