include/asm/bitops_32.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * bitops.h: Bit string operations on the Sparc.
0004  *
0005  * Copyright 1995 David S. Miller (davem@caip.rutgers.edu)
0006  * Copyright 1996 Eddie C. Dost   (ecd@skynet.be)
0007  * Copyright 2001 Anton Blanchard (anton@samba.org)
0008  */
0009
0010 #ifndef _SPARC_BITOPS_H
0011 #define _SPARC_BITOPS_H
0012
0013 #include <linux/compiler.h>
0014 #include <asm/byteorder.h>
0015
0016 #ifdef __KERNEL__
0017
0018 #ifndef _LINUX_BITOPS_H
0019 #error only <linux/bitops.h> can be included directly
0020 #endif
0021
0022 unsigned long sp32___set_bit(unsigned long *addr, unsigned long mask);
0023 unsigned long sp32___clear_bit(unsigned long *addr, unsigned long mask);
0024 unsigned long sp32___change_bit(unsigned long *addr, unsigned long mask);
0025
0026 /*
0027  * Set bit 'nr' in 32-bit quantity at address 'addr' where bit '0'
0028  * is in the highest of the four bytes and bit '31' is the high bit
0029  * within the first byte. Sparc is BIG-Endian. Unless noted otherwise
0030  * all bit-ops return 0 if bit was previously clear and != 0 otherwise.
0031  */
0032 static inline int test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
0033 {
0034     unsigned long *ADDR, mask;
0035
0036     ADDR = ((unsigned long *) addr) + (nr >> 5);
0037     mask = 1 << (nr & 31);
0038
0039     return sp32___set_bit(ADDR, mask) != 0;
0040 }
0041
0042 static inline void set_bit(unsigned long nr, volatile unsigned long *addr)
0043 {
0044     unsigned long *ADDR, mask;
0045
0046     ADDR = ((unsigned long *) addr) + (nr >> 5);
0047     mask = 1 << (nr & 31);
0048
0049     (void) sp32___set_bit(ADDR, mask);
0050 }
0051
0052 static inline int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
0053 {
0054     unsigned long *ADDR, mask;
0055
0056     ADDR = ((unsigned long *) addr) + (nr >> 5);
0057     mask = 1 << (nr & 31);
0058
0059     return sp32___clear_bit(ADDR, mask) != 0;
0060 }
0061
0062 static inline void clear_bit(unsigned long nr, volatile unsigned long *addr)
0063 {
0064     unsigned long *ADDR, mask;
0065
0066     ADDR = ((unsigned long *) addr) + (nr >> 5);
0067     mask = 1 << (nr & 31);
0068
0069     (void) sp32___clear_bit(ADDR, mask);
0070 }
0071
0072 static inline int test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
0073 {
0074     unsigned long *ADDR, mask;
0075
0076     ADDR = ((unsigned long *) addr) + (nr >> 5);
0077     mask = 1 << (nr & 31);
0078
0079     return sp32___change_bit(ADDR, mask) != 0;
0080 }
0081
0082 static inline void change_bit(unsigned long nr, volatile unsigned long *addr)
0083 {
0084     unsigned long *ADDR, mask;
0085
0086     ADDR = ((unsigned long *) addr) + (nr >> 5);
0087     mask = 1 << (nr & 31);
0088
0089     (void) sp32___change_bit(ADDR, mask);
0090 }
0091
0092 #include <asm-generic/bitops/non-atomic.h>
0093
0094 #include <asm-generic/bitops/ffz.h>
0095 #include <asm-generic/bitops/__ffs.h>
0096 #include <asm-generic/bitops/sched.h>
0097 #include <asm-generic/bitops/ffs.h>
0098 #include <asm-generic/bitops/fls.h>
0099 #include <asm-generic/bitops/__fls.h>
0100 #include <asm-generic/bitops/fls64.h>
0101 #include <asm-generic/bitops/hweight.h>
0102 #include <asm-generic/bitops/lock.h>
0103 #include <asm-generic/bitops/le.h>
0104 #include <asm-generic/bitops/ext2-atomic.h>
0105
0106 #endif /* __KERNEL__ */
0107
0108 #endif /* defined(_SPARC_BITOPS_H) */