diff options
| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2010-10-20 15:55:35 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2010-10-20 16:02:42 -0700 |
| commit | 66f2b061546974b96b7b238a92ce89a87ecf0754 (patch) | |
| tree | 7fb27bc9a7143bea2fa1abf89bee4fc2a87aa9bc /arch/x86 | |
| parent | 932967202182743c01a2eee4bdfa2c42697bc586 (diff) | |
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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index cea0cd9a316f..2924f4e77791 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -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 |