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author | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
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committer | David Vrabel <david.vrabel@csr.com> | 2009-01-02 16:17:13 +0300 |
commit | b21a207141d83a06abc5f492b80204602e02ca44 (patch) | |
tree | f0152cde543008c72d7eb5c12c18095ad92785e6 /arch/x86/include/asm/io.h | |
parent | 3af373021fa32f8f787bfbdcc1a9277a287bde4e (diff) | |
parent | b58602a4bac012b5f4fc12fe6b46ab237b610d5d (diff) | |
download | linux-b21a207141d83a06abc5f492b80204602e02ca44.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-upstream
Conflicts:
drivers/uwb/wlp/eda.c
Diffstat (limited to 'arch/x86/include/asm/io.h')
-rw-r--r-- | arch/x86/include/asm/io.h | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h index ac2abc88cd95..05cfed4485fa 100644 --- a/arch/x86/include/asm/io.h +++ b/arch/x86/include/asm/io.h @@ -4,6 +4,7 @@ #define ARCH_HAS_IOREMAP_WC #include <linux/compiler.h> +#include <asm-generic/int-ll64.h> #define build_mmio_read(name, size, type, reg, barrier) \ static inline type name(const volatile void __iomem *addr) \ @@ -45,21 +46,39 @@ build_mmio_write(__writel, "l", unsigned int, "r", ) #define mmiowb() barrier() #ifdef CONFIG_X86_64 + build_mmio_read(readq, "q", unsigned long, "=r", :"memory") -build_mmio_read(__readq, "q", unsigned long, "=r", ) build_mmio_write(writeq, "q", unsigned long, "r", :"memory") -build_mmio_write(__writeq, "q", unsigned long, "r", ) -#define readq_relaxed(a) __readq(a) -#define __raw_readq __readq -#define __raw_writeq writeq +#else + +static inline __u64 readq(const volatile void __iomem *addr) +{ + const volatile u32 __iomem *p = addr; + u32 low, high; + + low = readl(p); + high = readl(p + 1); + + return low + ((u64)high << 32); +} + +static inline void writeq(__u64 val, volatile void __iomem *addr) +{ + writel(val, addr); + writel(val >> 32, addr+4); +} -/* Let people know we have them */ -#define readq readq -#define writeq writeq #endif -extern int iommu_bio_merge; +#define readq_relaxed(a) readq(a) + +#define __raw_readq(a) readq(a) +#define __raw_writeq(val, addr) writeq(val, addr) + +/* Let people know that we have them */ +#define readq readq +#define writeq writeq #ifdef CONFIG_X86_32 # include "io_32.h" |