compute checksum for roms bigger than a segment
[qemu-kvm/fedora.git] / cache-utils.h
blobe4f27ef51359b0632fa57e583d698fafc88eaca5
1 #ifndef QEMU_CACHE_UTILS_H
2 #define QEMU_CACHE_UTILS_H
4 #if defined(_ARCH_PPC)
5 struct qemu_cache_conf {
6 unsigned long dcache_bsize;
7 unsigned long icache_bsize;
8 };
10 extern struct qemu_cache_conf qemu_cache_conf;
12 extern void qemu_cache_utils_init(char **envp);
14 /* mildly adjusted code from tcg-dyngen.c */
15 static inline void flush_icache_range(unsigned long start, unsigned long stop)
17 unsigned long p, start1, stop1;
18 unsigned long dsize = qemu_cache_conf.dcache_bsize;
19 unsigned long isize = qemu_cache_conf.icache_bsize;
21 start1 = start & ~(dsize - 1);
22 stop1 = (stop + dsize - 1) & ~(dsize - 1);
23 for (p = start1; p < stop1; p += dsize) {
24 asm volatile ("dcbst 0,%0" : : "r"(p) : "memory");
26 asm volatile ("sync" : : : "memory");
28 start &= start & ~(isize - 1);
29 stop1 = (stop + isize - 1) & ~(isize - 1);
30 for (p = start1; p < stop1; p += isize) {
31 asm volatile ("icbi 0,%0" : : "r"(p) : "memory");
33 asm volatile ("sync" : : : "memory");
34 asm volatile ("isync" : : : "memory");
38 * Is this correct for PPC?
40 static inline void dma_flush_range(unsigned long start, unsigned long stop)
44 #elif defined(__ia64__)
45 static inline void flush_icache_range(unsigned long start, unsigned long stop)
47 while (start < stop) {
48 asm volatile ("fc %0" :: "r"(start));
49 start += 32;
51 asm volatile (";;sync.i;;srlz.i;;");
53 #define dma_flush_range(start, end) flush_icache_range(start, end)
54 #define qemu_cache_utils_init(envp) do { (void) (envp); } while (0)
55 #else
56 static inline void dma_flush_range(unsigned long start, unsigned long stop)
59 #define qemu_cache_utils_init(envp) do { (void) (envp); } while (0)
60 #endif
62 #endif /* QEMU_CACHE_UTILS_H */