| 1 |
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| 2 | #ifndef __ASM_SH_BITOPS_H
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| 3 | #define __ASM_SH_BITOPS_H
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| 4 |
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| 5 | #ifndef _LINUX_BITOPS_H
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| 6 | #error only <linux/bitops.h> can be included directly
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| 7 | #endif
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| 8 |
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| 9 |
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| 10 | #include <asm/byteorder.h>
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| 11 | #include <asm/barrier.h>
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| 12 |
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| 13 | #ifdef CONFIG_GUSA_RB
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| 14 | #include <asm/bitops-grb.h>
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| 15 | #elif defined(CONFIG_CPU_SH2A)
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| 16 | #include <asm-generic/bitops/atomic.h>
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| 17 | #include <asm/bitops-op32.h>
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| 18 | #elif defined(CONFIG_CPU_SH4A)
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| 19 | #include <asm/bitops-llsc.h>
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| 20 | #elif defined(CONFIG_CPU_J2) && defined(CONFIG_SMP)
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| 21 | #include <asm/bitops-cas.h>
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| 22 | #else
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| 23 | #include <asm-generic/bitops/atomic.h>
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| 24 | #include <asm-generic/bitops/non-atomic.h>
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| 25 | #endif
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| 26 |
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| 27 | static inline unsigned long __attribute_const__ ffz(unsigned long word)
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| 28 | {
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| 29 | unsigned long result;
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| 30 |
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| 31 | __asm__("1:\n\t"
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| 32 | "shlr %1\n\t"
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| 33 | "bt/s 1b\n\t"
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| 34 | " add #1, %0"
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| 35 | : "=r" (result), "=r" (word)
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| 36 | : "0" (~0L), "1" (word)
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| 37 | : "t");
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| 38 | return result;
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| 39 | }
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| 40 |
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| 41 | |
| 42 | * __ffs - find first bit in word.
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| 43 | * @word: The word to search
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| 44 | *
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| 45 | * Undefined if no bit exists, so code should check against 0 first.
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| 46 |
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| 47 | static inline __attribute_const__ unsigned long __ffs(unsigned long word)
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| 48 | {
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| 49 | unsigned long result;
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| 50 |
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| 51 | __asm__("1:\n\t"
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| 52 | "shlr %1\n\t"
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| 53 | "bf/s 1b\n\t"
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| 54 | " add #1, %0"
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| 55 | : "=r" (result), "=r" (word)
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| 56 | : "0" (~0L), "1" (word)
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| 57 | : "t");
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| 58 | return result;
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| 59 | }
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| 60 |
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| 61 | #include <asm-generic/bitops/ffs.h>
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| 62 | #include <asm-generic/bitops/hweight.h>
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| 63 | #include <asm-generic/bitops/lock.h>
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| 64 | #include <asm-generic/bitops/sched.h>
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| 65 | #include <asm-generic/bitops/ext2-atomic.h>
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| 66 | #include <asm-generic/bitops/fls.h>
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| 67 | #include <asm-generic/bitops/__fls.h>
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| 68 | #include <asm-generic/bitops/fls64.h>
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| 69 |
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| 70 | #include <asm-generic/bitops/le.h>
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| 71 |
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| 72 | #endif
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