Commit 66f2b061 authored Oct 20, 2010 by FUJITA Tomonori Committed by H. Peter Anvin Oct 20, 2010

x86, mm: Enable ARCH_DMA_ADDR_T_64BIT with X86_64 || HIGHMEM64G



Set CONFIG_ARCH_DMA_ADDR_T_64BIT when we set dma_addr_t to 64 bits in
<asm/types.h>; this allows Kconfig decisions based on this property.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
LKML-Reference: <201010202255.o9KMtZXu009370@imap1.linux-foundation.org>
Acked-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent 93296720

arch/x86/Kconfig

+3 −0

Original line number	Diff line number	Diff line
		@@ -1148,6 +1148,9 @@ config X86_PAE
		config ARCH_PHYS_ADDR_T_64BIT
		def_bool X86_64 \|\| X86_PAE

		config ARCH_DMA_ADDR_T_64BIT
		def_bool X86_64 \|\| HIGHMEM64G

		config DIRECT_GBPAGES
		bool "Enable 1GB pages for kernel pagetables" if EMBEDDED
		default y

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