| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * bitops.h: Bit string operations on the Sparc. |
| * |
| * Copyright 1995 David S. Miller (davem@caip.rutgers.edu) |
| * Copyright 1996 Eddie C. Dost (ecd@skynet.be) |
| * Copyright 2001 Anton Blanchard (anton@samba.org) |
| */ |
| |
| #ifndef _SPARC_BITOPS_H |
| #define _SPARC_BITOPS_H |
| |
| #include <linux/compiler.h> |
| #include <asm/byteorder.h> |
| |
| #ifdef __KERNEL__ |
| |
| #ifndef _LINUX_BITOPS_H |
| #error only <linux/bitops.h> can be included directly |
| #endif |
| |
| unsigned long ___set_bit(unsigned long *addr, unsigned long mask); |
| unsigned long ___clear_bit(unsigned long *addr, unsigned long mask); |
| unsigned long ___change_bit(unsigned long *addr, unsigned long mask); |
| |
| /* |
| * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0' |
| * is in the highest of the four bytes and bit '31' is the high bit |
| * within the first byte. Sparc is BIG-Endian. Unless noted otherwise |
| * all bit-ops return 0 if bit was previously clear and != 0 otherwise. |
| */ |
| static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| return ___set_bit(ADDR, mask) != 0; |
| } |
| |
| static inline void set_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| (void) ___set_bit(ADDR, mask); |
| } |
| |
| static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| return ___clear_bit(ADDR, mask) != 0; |
| } |
| |
| static inline void clear_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| (void) ___clear_bit(ADDR, mask); |
| } |
| |
| static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| return ___change_bit(ADDR, mask) != 0; |
| } |
| |
| static inline void change_bit(unsigned long nr, volatile unsigned long *addr) |
| { |
| unsigned long *ADDR, mask; |
| |
| ADDR = ((unsigned long *) addr) + (nr >> 5); |
| mask = 1 << (nr & 31); |
| |
| (void) ___change_bit(ADDR, mask); |
| } |
| |
| #include <asm-generic/bitops/non-atomic.h> |
| |
| #include <asm-generic/bitops/ffz.h> |
| #include <asm-generic/bitops/__ffs.h> |
| #include <asm-generic/bitops/sched.h> |
| #include <asm-generic/bitops/ffs.h> |
| #include <asm-generic/bitops/fls.h> |
| #include <asm-generic/bitops/__fls.h> |
| #include <asm-generic/bitops/fls64.h> |
| #include <asm-generic/bitops/hweight.h> |
| #include <asm-generic/bitops/lock.h> |
| #include <asm-generic/bitops/le.h> |
| #include <asm-generic/bitops/ext2-atomic.h> |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* defined(_SPARC_BITOPS_H) */ |