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Merge git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
* git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic/io.h: allow people to override individual funcs bitops: remove duplicated extern declarations bitops: make asm-generic/bitops/find.h more generic asm-generic: kdebug.h: Checkpatch cleanup asm-generic: fcntl: make exported headers use strict posix types asm-generic: cmpxchg does not handle non-long arguments asm-generic: make atomic_add_unless a function
This commit is contained in:
Linus Torvalds
commit
db08bf0877
@ -120,6 +120,7 @@ static inline unsigned long __arch_hweight64(__u64 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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#include <asm-generic/bitops/find.h>
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#include <asm-generic/bitops/sched.h>
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#include <asm-generic/bitops/ext2-non-atomic.h>
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#include <asm-generic/bitops/minix.h>
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@ -440,6 +440,8 @@ static inline int fls(int x)
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#ifdef __KERNEL__
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#include <asm-generic/bitops/find.h>
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#include <asm-generic/bitops/sched.h>
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#define ARCH_HAS_FAST_MULTIPLIER 1
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@ -120,14 +120,23 @@ static inline void atomic_dec(atomic_t *v)
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#define atomic_dec_and_test(v) (atomic_sub_return(1, (v)) == 0)
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#define atomic_inc_and_test(v) (atomic_add_return(1, (v)) == 0)
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#define atomic_add_unless(v, a, u) \
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({ \
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int c, old; \
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c = atomic_read(v); \
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while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
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c = old; \
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c != (u); \
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})
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#define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v)))
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#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new)))
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#define cmpxchg_local(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
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(unsigned long)(n), sizeof(*(ptr))))
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#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
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static inline int atomic_add_unless(atomic_t *v, int a, int u)
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{
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int c, old;
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c = atomic_read(v);
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while (c != u && (old = atomic_cmpxchg(v, c, c + a)) != c)
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c = old;
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return c != u;
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}
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#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
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@ -141,15 +150,6 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
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raw_local_irq_restore(flags);
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}
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#define atomic_xchg(ptr, v) (xchg(&(ptr)->counter, (v)))
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#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), (old), (new)))
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#define cmpxchg_local(ptr, o, n) \
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((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
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(unsigned long)(n), sizeof(*(ptr))))
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#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
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/* Assume that atomic operations are already serializing */
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#define smp_mb__before_atomic_dec() barrier()
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#define smp_mb__after_atomic_dec() barrier()
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@ -1,15 +1,50 @@
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#ifndef _ASM_GENERIC_BITOPS_FIND_H_
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#define _ASM_GENERIC_BITOPS_FIND_H_
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#ifndef CONFIG_GENERIC_FIND_NEXT_BIT
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/**
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* find_next_bit - find the next set bit in a memory region
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* @addr: The address to base the search on
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* @offset: The bitnumber to start searching at
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* @size: The bitmap size in bits
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*/
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extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
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size, unsigned long offset);
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/**
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* find_next_zero_bit - find the next cleared bit in a memory region
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* @addr: The address to base the search on
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* @offset: The bitnumber to start searching at
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* @size: The bitmap size in bits
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*/
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extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
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long size, unsigned long offset);
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#endif
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#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
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/**
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* find_first_bit - find the first set bit in a memory region
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* @addr: The address to start the search at
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* @size: The maximum size to search
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*
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* Returns the bit number of the first set bit.
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*/
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extern unsigned long find_first_bit(const unsigned long *addr,
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unsigned long size);
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/**
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* find_first_zero_bit - find the first cleared bit in a memory region
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* @addr: The address to start the search at
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* @size: The maximum size to search
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*
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* Returns the bit number of the first cleared bit.
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*/
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extern unsigned long find_first_zero_bit(const unsigned long *addr,
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unsigned long size);
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#else /* CONFIG_GENERIC_FIND_FIRST_BIT */
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#define find_first_bit(addr, size) find_next_bit((addr), (size), 0)
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#define find_first_zero_bit(addr, size) find_next_zero_bit((addr), (size), 0)
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#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
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#endif /*_ASM_GENERIC_BITOPS_FIND_H_ */
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@ -122,7 +122,7 @@
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struct f_owner_ex {
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int type;
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pid_t pid;
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__kernel_pid_t pid;
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};
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/* for F_[GET|SET]FL */
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@ -19,7 +19,9 @@
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#include <asm-generic/iomap.h>
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#endif
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#ifndef mmiowb
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#define mmiowb() do {} while (0)
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#endif
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/*****************************************************************************/
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/*
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@ -28,39 +30,51 @@
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* differently. On the simple architectures, we just read/write the
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* memory location directly.
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*/
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#ifndef __raw_readb
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static inline u8 __raw_readb(const volatile void __iomem *addr)
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{
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return *(const volatile u8 __force *) addr;
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}
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#endif
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#ifndef __raw_readw
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static inline u16 __raw_readw(const volatile void __iomem *addr)
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{
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return *(const volatile u16 __force *) addr;
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}
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#endif
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#ifndef __raw_readl
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static inline u32 __raw_readl(const volatile void __iomem *addr)
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{
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return *(const volatile u32 __force *) addr;
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}
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#endif
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#define readb __raw_readb
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#define readw(addr) __le16_to_cpu(__raw_readw(addr))
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#define readl(addr) __le32_to_cpu(__raw_readl(addr))
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#ifndef __raw_writeb
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static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
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{
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*(volatile u8 __force *) addr = b;
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}
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#endif
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#ifndef __raw_writew
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static inline void __raw_writew(u16 b, volatile void __iomem *addr)
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{
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*(volatile u16 __force *) addr = b;
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}
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#endif
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#ifndef __raw_writel
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static inline void __raw_writel(u32 b, volatile void __iomem *addr)
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{
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*(volatile u32 __force *) addr = b;
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}
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#endif
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#define writeb __raw_writeb
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#define writew(b,addr) __raw_writew(__cpu_to_le16(b),addr)
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@ -122,6 +136,7 @@ static inline void outl(u32 b, unsigned long addr)
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#define outw_p(x, addr) outw((x), (addr))
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#define outl_p(x, addr) outl((x), (addr))
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#ifndef insb
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static inline void insb(unsigned long addr, void *buffer, int count)
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{
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if (count) {
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@ -132,7 +147,9 @@ static inline void insb(unsigned long addr, void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef insw
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static inline void insw(unsigned long addr, void *buffer, int count)
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{
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if (count) {
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@ -143,7 +160,9 @@ static inline void insw(unsigned long addr, void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef insl
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static inline void insl(unsigned long addr, void *buffer, int count)
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{
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if (count) {
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@ -154,7 +173,9 @@ static inline void insl(unsigned long addr, void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef outsb
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static inline void outsb(unsigned long addr, const void *buffer, int count)
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{
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if (count) {
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@ -164,7 +185,9 @@ static inline void outsb(unsigned long addr, const void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef outsw
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static inline void outsw(unsigned long addr, const void *buffer, int count)
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{
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if (count) {
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@ -174,7 +197,9 @@ static inline void outsw(unsigned long addr, const void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef outsl
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static inline void outsl(unsigned long addr, const void *buffer, int count)
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{
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if (count) {
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@ -184,6 +209,7 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
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} while (--count);
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}
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}
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#endif
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#ifndef CONFIG_GENERIC_IOMAP
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#define ioread8(addr) readb(addr)
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@ -3,7 +3,7 @@
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enum die_val {
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DIE_UNUSED,
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DIE_OOPS=1
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DIE_OOPS = 1,
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};
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#endif /* _ASM_GENERIC_KDEBUG_H */
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@ -21,6 +21,7 @@
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#include <linux/irqflags.h>
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#include <asm/cmpxchg-local.h>
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#include <asm/cmpxchg.h>
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struct task_struct;
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@ -136,25 +137,6 @@ unsigned long __xchg(unsigned long x, volatile void *ptr, int size)
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#define xchg(ptr, x) \
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((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr))))
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static inline unsigned long __cmpxchg(volatile unsigned long *m,
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unsigned long old, unsigned long new)
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{
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unsigned long retval;
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unsigned long flags;
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local_irq_save(flags);
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retval = *m;
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if (retval == old)
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*m = new;
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local_irq_restore(flags);
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return retval;
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}
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#define cmpxchg(ptr, o, n) \
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((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
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(unsigned long)(o), \
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(unsigned long)(n)))
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#endif /* !__ASSEMBLY__ */
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#endif /* __KERNEL__ */
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@ -136,28 +136,6 @@ static inline unsigned long __ffs64(u64 word)
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}
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#ifdef __KERNEL__
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#ifdef CONFIG_GENERIC_FIND_FIRST_BIT
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/**
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* find_first_bit - find the first set bit in a memory region
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* @addr: The address to start the search at
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* @size: The maximum size to search
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*
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* Returns the bit number of the first set bit.
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*/
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extern unsigned long find_first_bit(const unsigned long *addr,
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unsigned long size);
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/**
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* find_first_zero_bit - find the first cleared bit in a memory region
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* @addr: The address to start the search at
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* @size: The maximum size to search
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*
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* Returns the bit number of the first cleared bit.
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*/
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extern unsigned long find_first_zero_bit(const unsigned long *addr,
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unsigned long size);
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#endif /* CONFIG_GENERIC_FIND_FIRST_BIT */
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#ifdef CONFIG_GENERIC_FIND_LAST_BIT
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/**
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@ -171,28 +149,5 @@ extern unsigned long find_last_bit(const unsigned long *addr,
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unsigned long size);
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#endif /* CONFIG_GENERIC_FIND_LAST_BIT */
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#ifdef CONFIG_GENERIC_FIND_NEXT_BIT
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/**
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* find_next_bit - find the next set bit in a memory region
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* @addr: The address to base the search on
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* @offset: The bitnumber to start searching at
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* @size: The bitmap size in bits
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*/
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extern unsigned long find_next_bit(const unsigned long *addr,
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unsigned long size, unsigned long offset);
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/**
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* find_next_zero_bit - find the next cleared bit in a memory region
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* @addr: The address to base the search on
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* @offset: The bitnumber to start searching at
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* @size: The bitmap size in bits
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*/
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extern unsigned long find_next_zero_bit(const unsigned long *addr,
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unsigned long size,
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unsigned long offset);
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#endif /* CONFIG_GENERIC_FIND_NEXT_BIT */
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#endif /* __KERNEL__ */
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#endif
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