From 1c98025c6c95bc057a25e2c6596de23288c68160 Mon Sep 17 00:00:00 2001 From: Scott Wood Date: Fri, 8 Aug 2014 18:40:42 -0500 Subject: powerpc: Dynamic DMA zone limits Platform code can call limit_zone_pfn() to set appropriate limits for ZONE_DMA and ZONE_DMA32, and dma_direct_alloc_coherent() will select a suitable zone based on a device's mask and the pfn limits that platform code has configured. Signed-off-by: Scott Wood Cc: Shaohui Xie --- arch/powerpc/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/powerpc/Kconfig') diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index bd6dd6e..d003409 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -285,6 +285,10 @@ config PPC_EMULATE_SSTEP bool default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT +config ZONE_DMA32 + bool + default y if PPC64 + source "init/Kconfig" source "kernel/Kconfig.freezer" -- cgit v1.1