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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /arch/sparc/include/asm/bitops_32.h | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/sparc/include/asm/bitops_32.h')
-rw-r--r-- | arch/sparc/include/asm/bitops_32.h | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/bitops_32.h b/arch/sparc/include/asm/bitops_32.h new file mode 100644 index 000000000..0ceff3b91 --- /dev/null +++ b/arch/sparc/include/asm/bitops_32.h @@ -0,0 +1,109 @@ +/* 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/find.h> +#include <asm-generic/bitops/le.h> +#include <asm-generic/bitops/ext2-atomic.h> + +#endif /* __KERNEL__ */ + +#endif /* defined(_SPARC_BITOPS_H) */ |