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(void); 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() do { } while (0) 42 #endif 43 44 #endif /* QEMU_CACHE_UTILS_H */ 45
