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author | Dave Airlie <airlied@redhat.com> | 2012-03-15 10:24:32 +0000 |
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committer | Dave Airlie <airlied@redhat.com> | 2012-03-15 10:24:32 +0000 |
commit | 8229c885fe361e521ac64de36b16011e54a30de0 (patch) | |
tree | 572e5d34b16713ddef9e803308c6f72014aff01b /include/asm-generic/io-64-nonatomic-lo-hi.h | |
parent | c3c50e8b651887bcefcc13beb3739c00b2379b5c (diff) | |
parent | fde7d9049e55ab85a390be7f415d74c9f62dd0f9 (diff) | |
download | blackbird-op-linux-8229c885fe361e521ac64de36b16011e54a30de0.tar.gz blackbird-op-linux-8229c885fe361e521ac64de36b16011e54a30de0.zip |
drm: Merge tag 'v3.3-rc7' into drm-core-next
Merge the fixes so far into core-next, needed to test
intel driver.
Conflicts:
drivers/gpu/drm/i915/intel_ringbuffer.c
Diffstat (limited to 'include/asm-generic/io-64-nonatomic-lo-hi.h')
-rw-r--r-- | include/asm-generic/io-64-nonatomic-lo-hi.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/asm-generic/io-64-nonatomic-lo-hi.h b/include/asm-generic/io-64-nonatomic-lo-hi.h new file mode 100644 index 000000000000..ca546b1ff8b5 --- /dev/null +++ b/include/asm-generic/io-64-nonatomic-lo-hi.h @@ -0,0 +1,28 @@ +#ifndef _ASM_IO_64_NONATOMIC_LO_HI_H_ +#define _ASM_IO_64_NONATOMIC_LO_HI_H_ + +#include <linux/io.h> +#include <asm-generic/int-ll64.h> + +#ifndef readq +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); +} +#endif + +#ifndef writeq +static inline void writeq(__u64 val, volatile void __iomem *addr) +{ + writel(val, addr); + writel(val >> 32, addr + 4); +} +#endif + +#endif /* _ASM_IO_64_NONATOMIC_LO_HI_H_ */ |