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-rw-r--r--arch/mips/mm/c-r4k.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 77fbaf1cdfd6..3415d3e2a63b 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -1796,6 +1796,20 @@ void r4k_cache_init(void)
/* Optimization: an L2 flush implicitly flushes the L1 */
current_cpu_data.options |= MIPS_CPU_INCLUSIVE_CACHES;
break;
+ case CPU_LOONGSON3:
+ /* Loongson-3 maintains cache coherency by hardware */
+ __flush_cache_all = cache_noop;
+ __flush_cache_vmap = cache_noop;
+ __flush_cache_vunmap = cache_noop;
+ __flush_kernel_vmap_range = (void *)cache_noop;
+ flush_cache_mm = (void *)cache_noop;
+ flush_cache_page = (void *)cache_noop;
+ flush_cache_range = (void *)cache_noop;
+ flush_cache_sigtramp = (void *)cache_noop;
+ flush_icache_all = (void *)cache_noop;
+ flush_data_cache_page = (void *)cache_noop;
+ local_flush_data_cache_page = (void *)cache_noop;
+ break;
}
}