CPU_LOONGSON2EF need software to maintain cache consistency, so modify the 'cpu_needs_post_dma_flush' function to return true when the cpu type is CPU_LOONGSON2EF.

Cc: stable@vger.kernel.org Signed-off-by: Lichao Liu liulichao@loongson.cn --- arch/mips/mm/dma-noncoherent.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index fcea92d95d86..563c2c0d0c81 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -33,6 +33,7 @@ static inline bool cpu_needs_post_dma_flush(void) case CPU_R10000: case CPU_R12000: case CPU_BMIPS5000: + case CPU_LOONGSON2EF: return true; default: /*