From 7d6db80b7d264d6af9dc21baafe59f93cc4607c5 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 13 Sep 2021 18:44:55 +0200 Subject: sparc32: use DMA_DIRECT_REMAP Use the generic dma remapping allocator instead of open coding it. This also avoids setting up page tables from irq context which is generally dangerous and uses the atomic pool instead. Note that this changes the kernel virtual address at which the dma coherent memory is mapped from the DVMA_VADDR region to the general vmalloc pool. I could not find any indication that this matters for the hardware. Signed-off-by: Christoph Hellwig Tested-by: Andreas Larsson Acked-by: David S. Miller --- arch/sparc/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/sparc/Kconfig') diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index b120ed947f50..66fc08646be5 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -53,8 +53,9 @@ config SPARC32 def_bool !64BIT select ARCH_32BIT_OFF_T select ARCH_HAS_SYNC_DMA_FOR_CPU - select GENERIC_ATOMIC64 select CLZ_TAB + select DMA_DIRECT_REMAP + select GENERIC_ATOMIC64 select HAVE_UID16 select OLD_SIGACTION select ZONE_DMA -- cgit v1.2.3