Annotation of qemu/cache-utils.h, revision 1.1.1.3

1.1       root        1: #ifndef QEMU_CACHE_UTILS_H
                      2: #define QEMU_CACHE_UTILS_H
                      3: 
                      4: #if defined(_ARCH_PPC)
1.1.1.3 ! root        5: 
        !             6: #include <stdint.h> /* uintptr_t */
        !             7: 
1.1       root        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: 
1.1.1.2   root       15: void qemu_cache_utils_init(char **envp);
1.1       root       16: 
                     17: /* mildly adjusted code from tcg-dyngen.c */
1.1.1.3 ! root       18: static inline void flush_icache_range(uintptr_t start, uintptr_t stop)
1.1       root       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 */

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