numa: add -numa node,memdev= option
[qemu.git] / include / qemu / cache-utils.h
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 */