diff options
Diffstat (limited to 'arch/mips/mach-octeon/cache.c')
| -rw-r--r-- | arch/mips/mach-octeon/cache.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/mips/mach-octeon/cache.c b/arch/mips/mach-octeon/cache.c index 9a88bb97c7..f293d65dae 100644 --- a/arch/mips/mach-octeon/cache.c +++ b/arch/mips/mach-octeon/cache.c @@ -5,14 +5,13 @@ #include <cpu_func.h> -/* - * The Octeon platform is cache coherent and cache flushes and invalidates - * are not needed. Define some platform specific empty flush_foo() - * functions here to overwrite the _weak common function as a no-op. - * This effectively disables all cache operations. - */ +/* Octeon memory write barrier */ +#define CVMX_SYNCW asm volatile ("syncw\nsyncw\n" : : : "memory") + void flush_dcache_range(ulong start_addr, ulong stop) { + /* Flush all pending writes */ + CVMX_SYNCW; } void flush_cache(ulong start_addr, ulong size) @@ -21,4 +20,5 @@ void flush_cache(ulong start_addr, ulong size) void invalidate_dcache_range(ulong start_addr, ulong stop) { + /* Don't need to do anything for OCTEON */ } |