root / include / qemu / cache-utils.h @ 1de7afc9
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1 | 902b3d5c | malc | #ifndef QEMU_CACHE_UTILS_H
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2 | 902b3d5c | malc | #define QEMU_CACHE_UTILS_H
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3 | 902b3d5c | malc | |
4 | e58ffeb3 | malc | #if defined(_ARCH_PPC)
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5 | e04b2899 | Stefan Weil | |
6 | e04b2899 | Stefan Weil | #include <stdint.h> /* uintptr_t */ |
7 | e04b2899 | Stefan Weil | |
8 | 902b3d5c | malc | struct qemu_cache_conf {
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9 | 902b3d5c | malc | unsigned long dcache_bsize; |
10 | 902b3d5c | malc | unsigned long icache_bsize; |
11 | 902b3d5c | malc | }; |
12 | 902b3d5c | malc | |
13 | 902b3d5c | malc | extern struct qemu_cache_conf qemu_cache_conf; |
14 | 902b3d5c | malc | |
15 | 64b85a8f | Blue Swirl | void qemu_cache_utils_init(char **envp); |
16 | 902b3d5c | malc | |
17 | 902b3d5c | malc | /* mildly adjusted code from tcg-dyngen.c */
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18 | 021ecd8b | Stefan Weil | static inline void flush_icache_range(uintptr_t start, uintptr_t stop) |
19 | 902b3d5c | malc | { |
20 | 902b3d5c | malc | unsigned long p, start1, stop1; |
21 | 902b3d5c | malc | unsigned long dsize = qemu_cache_conf.dcache_bsize; |
22 | 902b3d5c | malc | unsigned long isize = qemu_cache_conf.icache_bsize; |
23 | 902b3d5c | malc | |
24 | 902b3d5c | malc | start1 = start & ~(dsize - 1);
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25 | 902b3d5c | malc | stop1 = (stop + dsize - 1) & ~(dsize - 1); |
26 | 902b3d5c | malc | for (p = start1; p < stop1; p += dsize) {
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27 | 902b3d5c | malc | asm volatile ("dcbst 0,%0" : : "r"(p) : "memory"); |
28 | 902b3d5c | malc | } |
29 | 902b3d5c | malc | asm volatile ("sync" : : : "memory"); |
30 | 902b3d5c | malc | |
31 | 902b3d5c | malc | start &= start & ~(isize - 1);
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32 | 902b3d5c | malc | stop1 = (stop + isize - 1) & ~(isize - 1); |
33 | 902b3d5c | malc | for (p = start1; p < stop1; p += isize) {
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34 | 902b3d5c | malc | asm volatile ("icbi 0,%0" : : "r"(p) : "memory"); |
35 | 902b3d5c | malc | } |
36 | 902b3d5c | malc | asm volatile ("sync" : : : "memory"); |
37 | 902b3d5c | malc | asm volatile ("isync" : : : "memory"); |
38 | 902b3d5c | malc | } |
39 | 902b3d5c | malc | |
40 | 902b3d5c | malc | #else
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41 | 902b3d5c | malc | #define qemu_cache_utils_init(envp) do { (void) (envp); } while (0) |
42 | 902b3d5c | malc | #endif
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43 | 902b3d5c | malc | |
44 | 902b3d5c | malc | #endif /* QEMU_CACHE_UTILS_H */ |