From: Lichao Liu liulichao@loongson.cn
commit a202bf71f08b3ef15356db30535e30b03cf23aec upstream.
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 Reviewed-by: Jiaxun Yang jiaxun.yang@flygoat.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/mips/mm/dma-noncoherent.c | 1 + 1 file changed, 1 insertion(+)
--- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -56,6 +56,7 @@ static inline bool cpu_needs_post_dma_fl case CPU_R10000: case CPU_R12000: case CPU_BMIPS5000: + case CPU_LOONGSON2EF: return true; default: /*