diff options
Diffstat (limited to 'arch/mips/lib/cache.c')
| -rw-r--r-- | arch/mips/lib/cache.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/mips/lib/cache.c b/arch/mips/lib/cache.c index bf8ff598ac..7482005b67 100644 --- a/arch/mips/lib/cache.c +++ b/arch/mips/lib/cache.c @@ -95,6 +95,10 @@ void flush_dcache_range(ulong start_addr, ulong stop) const void *addr = (const void *)(start_addr & ~(lsize - 1)); const void *aend = (const void *)((stop - 1) & ~(lsize - 1)); + /* aend will be miscalculated when size is zero, so we return here */ + if (start_addr == stop) + return; + while (1) { mips_cache(HIT_WRITEBACK_INV_D, addr); if (addr == aend) @@ -109,6 +113,10 @@ void invalidate_dcache_range(ulong start_addr, ulong stop) const void *addr = (const void *)(start_addr & ~(lsize - 1)); const void *aend = (const void *)((stop - 1) & ~(lsize - 1)); + /* aend will be miscalculated when size is zero, so we return here */ + if (start_addr == stop) + return; + while (1) { mips_cache(HIT_INVALIDATE_D, addr); if (addr == aend) |
