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authorAlessandro Rubini <rubini@gnudd.com>2012-04-04 19:39:58 +0200
committerH. Peter Anvin <hpa@zytor.com>2012-04-12 11:09:56 -0700
commit4692d77fc3c8978a36406a3cf9e8b899f86f68f1 (patch)
tree44466891638efecf6e0253f9a87a48739924f397 /arch/x86/Kconfig
parent0034102808e0dbbf3a2394b82b1bb40b5778de9e (diff)
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x86-32: Introduce CONFIG_X86_DEV_DMA_OPS
32-bit x86 systems may need their own DMA operations, so add a new config option, which is turned on for 64-bit systems. This patch has no functional effect but it paves the way for supporting the STA2x11 I/O Hub and possibly other chips. Signed-off-by: Alessandro Rubini <rubini@gnudd.com> Link: http://lkml.kernel.org/r/f79fcc1a2e17ef942e1b798b92aac43a80202532.1333560789.git.rubini@gnudd.com Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com> Cc: Alan Cox <alan@linux.intel.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d14cc6b79ad..07b412aed38b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -12,6 +12,7 @@ config X86_32
config X86_64
def_bool 64BIT
+ select X86_DEV_DMA_OPS
### Arch settings
config X86
@@ -2215,6 +2216,10 @@ config HAVE_TEXT_POKE_SMP
bool
select STOP_MACHINE if SMP
+config X86_DEV_DMA_OPS
+ bool
+ depends on X86_64
+
source "net/Kconfig"
source "drivers/Kconfig"