| #ifndef __ASM_SH_BITOPS_H |
| #define __ASM_SH_BITOPS_H |
| |
| #ifdef __KERNEL__ |
| |
| #ifndef _LINUX_BITOPS_H |
| #error only <linux/bitops.h> can be included directly |
| #endif |
| |
| #include <asm/system.h> |
| /* For __swab32 */ |
| #include <asm/byteorder.h> |
| |
| #ifdef CONFIG_GUSA_RB |
| #include <asm/bitops-grb.h> |
| #else |
| #include <asm/bitops-irq.h> |
| #endif |
| |
| |
| /* |
| * clear_bit() doesn't provide any barrier for the compiler. |
| */ |
| #define smp_mb__before_clear_bit() barrier() |
| #define smp_mb__after_clear_bit() barrier() |
| |
| #include <asm-generic/bitops/non-atomic.h> |
| |
| #ifdef CONFIG_SUPERH32 |
| static inline unsigned long ffz(unsigned long word) |
| { |
| unsigned long result; |
| |
| __asm__("1:\n\t" |
| "shlr %1\n\t" |
| "bt/s 1b\n\t" |
| " add #1, %0" |
| : "=r" (result), "=r" (word) |
| : "0" (~0L), "1" (word) |
| : "t"); |
| return result; |
| } |
| |
| /** |
| * __ffs - find first bit in word. |
| * @word: The word to search |
| * |
| * Undefined if no bit exists, so code should check against 0 first. |
| */ |
| static inline unsigned long __ffs(unsigned long word) |
| { |
| unsigned long result; |
| |
| __asm__("1:\n\t" |
| "shlr %1\n\t" |
| "bf/s 1b\n\t" |
| " add #1, %0" |
| : "=r" (result), "=r" (word) |
| : "0" (~0L), "1" (word) |
| : "t"); |
| return result; |
| } |
| #else |
| static inline unsigned long ffz(unsigned long word) |
| { |
| unsigned long result, __d2, __d3; |
| |
| __asm__("gettr tr0, %2\n\t" |
| "pta $+32, tr0\n\t" |
| "andi %1, 1, %3\n\t" |
| "beq %3, r63, tr0\n\t" |
| "pta $+4, tr0\n" |
| "0:\n\t" |
| "shlri.l %1, 1, %1\n\t" |
| "addi %0, 1, %0\n\t" |
| "andi %1, 1, %3\n\t" |
| "beqi %3, 1, tr0\n" |
| "1:\n\t" |
| "ptabs %2, tr0\n\t" |
| : "=r" (result), "=r" (word), "=r" (__d2), "=r" (__d3) |
| : "0" (0L), "1" (word)); |
| |
| return result; |
| } |
| |
| #include <asm-generic/bitops/__ffs.h> |
| #endif |
| |
| #include <asm-generic/bitops/find.h> |
| #include <asm-generic/bitops/ffs.h> |
| #include <asm-generic/bitops/hweight.h> |
| #include <asm-generic/bitops/lock.h> |
| #include <asm-generic/bitops/sched.h> |
| #include <asm-generic/bitops/ext2-non-atomic.h> |
| #include <asm-generic/bitops/ext2-atomic.h> |
| #include <asm-generic/bitops/minix.h> |
| #include <asm-generic/bitops/fls.h> |
| #include <asm-generic/bitops/__fls.h> |
| #include <asm-generic/bitops/fls64.h> |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* __ASM_SH_BITOPS_H */ |