diff options
Diffstat (limited to 'firmware/export/system.h')
| -rw-r--r-- | firmware/export/system.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/firmware/export/system.h b/firmware/export/system.h index 505b167af9..fee188802b 100644 --- a/firmware/export/system.h +++ b/firmware/export/system.h @@ -312,6 +312,16 @@ static inline void cpucache_flush(void) /* Aligns a buffer pointer and size to proper boundaries */ #define CACHEALIGN_BUFFER(start, size) \ ALIGN_BUFFER((start), (size), CACHEALIGN_SIZE) +/* Pad a size so the buffer can be aligned later */ +#define CACHE_PAD(x) ((x) + CACHEALIGN_SIZE - 1) +/* Number of bytes in the last cacheline assuming buffer of size x is aligned */ +#define CACHE_OVERLAP(x) (x & (CACHEALIGN_SIZE - 1)) + +#ifdef NEEDS_STORAGE_ALIGN +#define STORAGE_ALIGN_DOWN(x) CACHEALIGN_DOWN(x) +#define STORAGE_PAD(x) CACHE_PAD(x) +#define STORAGE_OVERLAP(x) CACHE_OVERLAP(x) +#endif #else /* ndef PROC_NEEDS_CACHEALIGN */ @@ -323,9 +333,17 @@ static inline void cpucache_flush(void) #define CACHEALIGN_DOWN(x) (x) /* Make no adjustments */ #define CACHEALIGN_BUFFER(start, size) +#define CACHE_PAD(x) (x) +#define CACHE_OVERLAP(x) 0 #endif /* PROC_NEEDS_CACHEALIGN */ +#if !defined(PROC_NEEDS_CACHEALIGN) || !defined(NEEDS_STORAGE_ALIGN) +#define STORAGE_ALIGN_DOWN(x) (x) +#define STORAGE_PAD(x) (x) +#define STORAGE_OVERLAP(x) 0 +#endif + /* Double-cast to avoid 'dereferencing type-punned pointer will * break strict aliasing rules' B.S. */ #define PUN_PTR(type, p) ((type)(intptr_t)(p)) |