diff options
Diffstat (limited to 'arch/mips/mm/c-r4k.c')
| -rw-r--r-- | arch/mips/mm/c-r4k.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 9b223e07f784..8fc713f1d139 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -640,6 +640,17 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo break; } } +#ifdef CONFIG_EVA + /* + * Due to all possible segment mappings, there might cache aliases + * caused by the bootloader being in non-EVA mode, and the CPU switching + * to EVA during early kernel init. It's best to flush the scache + * to avoid having secondary cores fetching stale data and lead to + * kernel crashes. + */ + bc_wback_inv(start, (end - start)); + __sync(); +#endif } static inline void local_r4k_flush_icache_range_ipi(void *args) |
