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Date: Fri, 19 Jun 2020 16:33:02 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Lichao Liu <liulichao@...ngson.cn>, Jiaxun Yang <jiaxun.yang@...goat.com>, Thomas Bogendoerfer <tsbogend@...ha.franken.de> Subject: [PATCH 5.4 171/261] MIPS: CPU_LOONGSON2EF need software to maintain cache consistency From: Lichao Liu <liulichao@...ngson.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@...r.kernel.org Signed-off-by: Lichao Liu <liulichao@...ngson.cn> Reviewed-by: Jiaxun Yang <jiaxun.yang@...goat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.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 @@ -33,6 +33,7 @@ static inline bool cpu_needs_post_dma_fl case CPU_R10000: case CPU_R12000: case CPU_BMIPS5000: + case CPU_LOONGSON2EF: return true; default: /*
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