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added code to selectively push areas of memory from the caches

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This commit is contained in:
Markus Fröschle
2013-08-12 21:06:36 +00:00
parent 6ee9b72191
commit 9ace9866c2
2 changed files with 106 additions and 0 deletions
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27
BaS_gcc/include/cache.h
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@@ -26,6 +26,7 @@
*/
#include <stdint.h>
#include <stddef.h>
/*
* CACR Cache Control Register
@@ -54,9 +55,35 @@
#define CF_CACR_IDSP (0x00000080) /* Ins default supervisor-protect */
#define CF_CACR_EUSP (0x00000020) /* Switch stacks in user mode */
#define _DCACHE_SET_MASK ((DCACHE_SIZE/64-1)<<CACHE_WAYS)
#define _ICACHE_SET_MASK ((ICACHE_SIZE/64-1)<<CACHE_WAYS)
#define LAST_DCACHE_ADDR _DCACHE_SET_MASK
#define LAST_ICACHE_ADDR _ICACHE_SET_MASK
#define ICACHE_SIZE 0x8000 /* instruction - 32k */
#define DCACHE_SIZE 0x8000 /* data - 32k */
#define CACHE_LINE_SIZE 0x0010 /* 16 bytes */
#define CACHE_SETS 0x0200 /* 512 sets */
#define CACHE_WAYS 0x0004 /* 4 way */
#define CACHE_DISABLE_MODE (CF_CACR_DCINVA+ \
CF_CACR_BCINVA+ \
CF_CACR_ICINVA)
#define CACHE_INITIAL_MODE (CF_CACR_DEC+ \
CF_CACR_BEC+ \
CF_CACR_IEC+ \
CF_CACR_DESB+ \
CF_CACR_EUSP)
extern void flush_and_invalidate_caches(void);
extern uint32_t cacr_get(void);
extern void cacr_set(uint32_t);
extern void flush_icache_range(void *address, size_t size);
extern void flush_dcache_range(void *address, size_t size);
#endif /* _CACHE_H_ */