diff options
Diffstat (limited to 'src/arch/arm/armv7')
| -rw-r--r-- | src/arch/arm/armv7/cache.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/src/arch/arm/armv7/cache.c b/src/arch/arm/armv7/cache.c index acd1f9aefa..4ee2687d38 100644 --- a/src/arch/arm/armv7/cache.c +++ b/src/arch/arm/armv7/cache.c @@ -194,17 +194,20 @@ void dcache_invalidate_all(void) dcache_foreach(OP_DCISW); } -static unsigned int line_bytes(void) +unsigned int dcache_line_bytes(void) { uint32_t ccsidr; - unsigned int size; + static unsigned int line_bytes = 0; + + if (line_bytes) + return line_bytes; ccsidr = read_ccsidr(); /* [2:0] - Indicates (Log2(number of words in cache line)) - 2 */ - size = 1 << ((ccsidr & 0x7) + 2); /* words per line */ - size *= sizeof(unsigned int); /* bytes per line */ + line_bytes = 1 << ((ccsidr & 0x7) + 2); /* words per line */ + line_bytes *= sizeof(unsigned int); /* bytes per line */ - return size; + return line_bytes; } /* @@ -217,7 +220,7 @@ static void dcache_op_mva(void const *addr, size_t len, enum dcache_op op) { unsigned long line, linesize; - linesize = line_bytes(); + linesize = dcache_line_bytes(); line = (uint32_t)addr & ~(linesize - 1); dsb(); |