From 885014bcf284cdfbe3428f2cfa3882edde5ff5fa Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 27 Sep 2013 14:41:44 +0200 Subject: MIPS: improve checks for noncoherent DMA Only one MIPS development board actually supports enabling/disabling DMA coherency at runtime, so it's not a good idea to push the overhead of checking that configuration setting onto every other supported target as well. Signed-off-by: Felix Fietkau Signed-off-by: John Crispin Patchwork: http://patchwork.linux-mips.org/patch/5912/ --- arch/mips/Kconfig | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/mips/Kconfig') diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index a7ec153be0b..57a887334a6 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -301,7 +301,7 @@ config MIPS_MALTA select CEVT_R4K select CSRC_R4K select CSRC_GIC - select DMA_NONCOHERENT + select DMA_MAYBE_COHERENT select GENERIC_ISA_DMA select HAVE_PCSPKR_PLATFORM select IRQ_CPU @@ -893,6 +893,10 @@ config FW_CFE config ARCH_DMA_ADDR_T_64BIT def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT +config DMA_MAYBE_COHERENT + select DMA_NONCOHERENT + bool + config DMA_COHERENT bool -- cgit v1.2.3-70-g09d2