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6
7#include <linux/types.h>
8#include <common.h>
9
10#ifndef CONFIG_SYS_DCACHE_OFF
11void invalidate_dcache_all(void)
12{
13 asm volatile("mcr p15, 0, %0, c7, c6, 0\n" : : "r"(0));
14}
15
16void flush_dcache_all(void)
17{
18 asm volatile(
19 "0:"
20 "mrc p15, 0, r15, c7, c14, 3\n"
21 "bne 0b\n"
22 "mcr p15, 0, %0, c7, c10, 4\n"
23 : : "r"(0) : "memory"
24 );
25}
26
27void invalidate_dcache_range(unsigned long start, unsigned long stop)
28{
29 if (!check_cache_range(start, stop))
30 return;
31
32 while (start < stop) {
33 asm volatile("mcr p15, 0, %0, c7, c6, 1\n" : : "r"(start));
34 start += CONFIG_SYS_CACHELINE_SIZE;
35 }
36}
37
38void flush_dcache_range(unsigned long start, unsigned long stop)
39{
40 if (!check_cache_range(start, stop))
41 return;
42
43 while (start < stop) {
44 asm volatile("mcr p15, 0, %0, c7, c14, 1\n" : : "r"(start));
45 start += CONFIG_SYS_CACHELINE_SIZE;
46 }
47
48 asm volatile("mcr p15, 0, %0, c7, c10, 4\n" : : "r"(0));
49}
50#else
51void invalidate_dcache_all(void)
52{
53}
54
55void flush_dcache_all(void)
56{
57}
58#endif
59
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61
62
63
64__weak void l2_cache_disable(void) {}
65
66#if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
67__weak void invalidate_l2_cache(void) {}
68#endif
69