forked from Minki/linux
1deab8ce2c
Pull sparc updates from David Miller:
1) Add missing cmpxchg64() for 32-bit sparc.
2) Timer conversions from Allen Pais and Kees Cook.
3) vDSO support, from Nagarathnam Muthusamy.
4) Fix sparc64 huge page table walks based upon bug report by Al Viro,
from Nitin Gupta.
5) Optimized fls() for T4 and above, from Vijay Kumar.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix page table walk for PUD hugepages
sparc64: Convert timers to user timer_setup()
sparc64: convert mdesc_handle.refcnt from atomic_t to refcount_t
sparc/led: Convert timers to use timer_setup()
sparc64: Use sparc optimized fls and __fls for T4 and above
sparc64: SPARC optimized __fls function
sparc64: SPARC optimized fls function
sparc64: Define SPARC default __fls function
sparc64: Define SPARC default fls function
vDSO for sparc
sparc32: Add cmpxchg64().
sbus: char: Move D7S_MINOR to include/linux/miscdevice.h
sparc: time: Remove unneeded linux/miscdevice.h include
sparc64: mmu_context: Add missing include files
66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* bitops.h: Bit string operations on the V9.
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*
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* Copyright 1996, 1997 David S. Miller (davem@caip.rutgers.edu)
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*/
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#ifndef _SPARC64_BITOPS_H
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#define _SPARC64_BITOPS_H
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#ifndef _LINUX_BITOPS_H
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#error only <linux/bitops.h> can be included directly
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#endif
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#include <linux/compiler.h>
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#include <asm/byteorder.h>
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#include <asm/barrier.h>
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int test_and_set_bit(unsigned long nr, volatile unsigned long *addr);
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int test_and_clear_bit(unsigned long nr, volatile unsigned long *addr);
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int test_and_change_bit(unsigned long nr, volatile unsigned long *addr);
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void set_bit(unsigned long nr, volatile unsigned long *addr);
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void clear_bit(unsigned long nr, volatile unsigned long *addr);
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void change_bit(unsigned long nr, volatile unsigned long *addr);
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int fls(unsigned int word);
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int __fls(unsigned long word);
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#include <asm-generic/bitops/non-atomic.h>
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#include <asm-generic/bitops/fls64.h>
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#ifdef __KERNEL__
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int ffs(int x);
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unsigned long __ffs(unsigned long);
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#include <asm-generic/bitops/ffz.h>
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#include <asm-generic/bitops/sched.h>
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/*
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* hweightN: returns the hamming weight (i.e. the number
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* of bits set) of a N-bit word
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*/
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unsigned long __arch_hweight64(__u64 w);
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unsigned int __arch_hweight32(unsigned int w);
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unsigned int __arch_hweight16(unsigned int w);
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unsigned int __arch_hweight8(unsigned int w);
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#include <asm-generic/bitops/const_hweight.h>
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#include <asm-generic/bitops/lock.h>
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#endif /* __KERNEL__ */
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#include <asm-generic/bitops/find.h>
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#ifdef __KERNEL__
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#include <asm-generic/bitops/le.h>
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#include <asm-generic/bitops/ext2-atomic-setbit.h>
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#endif /* __KERNEL__ */
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#endif /* defined(_SPARC64_BITOPS_H) */
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