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#ifndef _ASM_GENERIC_PERCPU_H_
#define _ASM_GENERIC_PERCPU_H_
#include <linux/compiler.h>
#include <linux/threads.h>
#include <linux/percpu-defs.h>
#ifdef CONFIG_SMP
/*
* per_cpu_offset() is the offset that has to be added to a
* percpu variable to get to the instance for a certain processor.
*
* Most arches use the __per_cpu_offset array for those offsets but
* some arches have their own ways of determining the offset (x86_64, s390).
*/
#ifndef __per_cpu_offset
extern unsigned long __per_cpu_offset[NR_CPUS];
#define per_cpu_offset(x) (__per_cpu_offset[x])
#endif
/*
* Determine the offset for the currently active processor.
* An arch may define __my_cpu_offset to provide a more effective
* means of obtaining the offset to the per cpu variables of the
* current processor.
*/
#ifndef __my_cpu_offset
#define __my_cpu_offset per_cpu_offset(raw_smp_processor_id())
#endif
#ifdef CONFIG_DEBUG_PREEMPT
#define my_cpu_offset per_cpu_offset(smp_processor_id())
#else
#define my_cpu_offset __my_cpu_offset
#endif
/*
* Arch may define arch_raw_cpu_ptr() to provide more efficient address
* translations for raw_cpu_ptr().
*/
#ifndef arch_raw_cpu_ptr
#define arch_raw_cpu_ptr(ptr) SHIFT_PERCPU_PTR(ptr, __my_cpu_offset)
#endif
#ifdef CONFIG_HAVE_SETUP_PER_CPU_AREA
extern void setup_per_cpu_areas(void);
#endif
#endif /* SMP */
#ifndef PER_CPU_BASE_SECTION
#ifdef CONFIG_SMP
#define PER_CPU_BASE_SECTION ".data..percpu"
#else
#define PER_CPU_BASE_SECTION ".data"
#endif
#endif
#ifndef PER_CPU_ATTRIBUTES
#define PER_CPU_ATTRIBUTES
#endif
#ifndef PER_CPU_DEF_ATTRIBUTES
#define PER_CPU_DEF_ATTRIBUTES
#endif
# ifndef raw_cpu_read_1
# define raw_cpu_read_1(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_2
# define raw_cpu_read_2(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_4
# define raw_cpu_read_4(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
# ifndef raw_cpu_read_8
# define raw_cpu_read_8(pcp) (*raw_cpu_ptr(&(pcp)))
# endif
#define raw_cpu_generic_to_op(pcp, val, op) \
do { \
*raw_cpu_ptr(&(pcp)) op val; \
} while (0)
# ifndef raw_cpu_write_1
# define raw_cpu_write_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef raw_cpu_write_2
# define raw_cpu_write_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef raw_cpu_write_4
# define raw_cpu_write_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef raw_cpu_write_8
# define raw_cpu_write_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef raw_cpu_add_1
# define raw_cpu_add_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef raw_cpu_add_2
# define raw_cpu_add_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef raw_cpu_add_4
# define raw_cpu_add_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef raw_cpu_add_8
# define raw_cpu_add_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef raw_cpu_and_1
# define raw_cpu_and_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef raw_cpu_and_2
# define raw_cpu_and_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef raw_cpu_and_4
# define raw_cpu_and_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef raw_cpu_and_8
# define raw_cpu_and_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef raw_cpu_or_1
# define raw_cpu_or_1(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef raw_cpu_or_2
# define raw_cpu_or_2(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef raw_cpu_or_4
# define raw_cpu_or_4(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef raw_cpu_or_8
# define raw_cpu_or_8(pcp, val) raw_cpu_generic_to_op((pcp), (val), |=)
# endif
#define raw_cpu_generic_add_return(pcp, val) \
({ \
raw_cpu_add(pcp, val); \
raw_cpu_read(pcp); \
})
# ifndef raw_cpu_add_return_1
# define raw_cpu_add_return_1(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_2
# define raw_cpu_add_return_2(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_4
# define raw_cpu_add_return_4(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
# ifndef raw_cpu_add_return_8
# define raw_cpu_add_return_8(pcp, val) raw_cpu_generic_add_return(pcp, val)
# endif
#define raw_cpu_generic_xchg(pcp, nval) \
({ typeof(pcp) ret__; \
ret__ = raw_cpu_read(pcp); \
raw_cpu_write(pcp, nval); \
ret__; \
})
# ifndef raw_cpu_xchg_1
# define raw_cpu_xchg_1(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_2
# define raw_cpu_xchg_2(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_4
# define raw_cpu_xchg_4(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
# ifndef raw_cpu_xchg_8
# define raw_cpu_xchg_8(pcp, nval) raw_cpu_generic_xchg(pcp, nval)
# endif
#define raw_cpu_generic_cmpxchg(pcp, oval, nval) \
({ \
typeof(pcp) ret__; \
ret__ = raw_cpu_read(pcp); \
if (ret__ == (oval)) \
raw_cpu_write(pcp, nval); \
ret__; \
})
# ifndef raw_cpu_cmpxchg_1
# define raw_cpu_cmpxchg_1(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef raw_cpu_cmpxchg_2
# define raw_cpu_cmpxchg_2(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef raw_cpu_cmpxchg_4
# define raw_cpu_cmpxchg_4(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef raw_cpu_cmpxchg_8
# define raw_cpu_cmpxchg_8(pcp, oval, nval) raw_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
#define raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
({ \
int __ret = 0; \
if (raw_cpu_read(pcp1) == (oval1) && \
raw_cpu_read(pcp2) == (oval2)) { \
raw_cpu_write(pcp1, (nval1)); \
raw_cpu_write(pcp2, (nval2)); \
__ret = 1; \
} \
(__ret); \
})
# ifndef raw_cpu_cmpxchg_double_1
# define raw_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef raw_cpu_cmpxchg_double_2
# define raw_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef raw_cpu_cmpxchg_double_4
# define raw_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef raw_cpu_cmpxchg_double_8
# define raw_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
raw_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
#define _this_cpu_generic_read(pcp) \
({ typeof(pcp) ret__; \
preempt_disable(); \
ret__ = *this_cpu_ptr(&(pcp)); \
preempt_enable(); \
ret__; \
})
# ifndef this_cpu_read_1
# define this_cpu_read_1(pcp) _this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_2
# define this_cpu_read_2(pcp) _this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_4
# define this_cpu_read_4(pcp) _this_cpu_generic_read(pcp)
# endif
# ifndef this_cpu_read_8
# define this_cpu_read_8(pcp) _this_cpu_generic_read(pcp)
# endif
#define _this_cpu_generic_to_op(pcp, val, op) \
do { \
unsigned long flags; \
raw_local_irq_save(flags); \
*raw_cpu_ptr(&(pcp)) op val; \
raw_local_irq_restore(flags); \
} while (0)
# ifndef this_cpu_write_1
# define this_cpu_write_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef this_cpu_write_2
# define this_cpu_write_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef this_cpu_write_4
# define this_cpu_write_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef this_cpu_write_8
# define this_cpu_write_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), =)
# endif
# ifndef this_cpu_add_1
# define this_cpu_add_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef this_cpu_add_2
# define this_cpu_add_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef this_cpu_add_4
# define this_cpu_add_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef this_cpu_add_8
# define this_cpu_add_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), +=)
# endif
# ifndef this_cpu_and_1
# define this_cpu_and_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef this_cpu_and_2
# define this_cpu_and_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef this_cpu_and_4
# define this_cpu_and_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef this_cpu_and_8
# define this_cpu_and_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), &=)
# endif
# ifndef this_cpu_or_1
# define this_cpu_or_1(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef this_cpu_or_2
# define this_cpu_or_2(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef this_cpu_or_4
# define this_cpu_or_4(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
# endif
# ifndef this_cpu_or_8
# define this_cpu_or_8(pcp, val) _this_cpu_generic_to_op((pcp), (val), |=)
# endif
#define _this_cpu_generic_add_return(pcp, val) \
({ \
typeof(pcp) ret__; \
unsigned long flags; \
raw_local_irq_save(flags); \
raw_cpu_add(pcp, val); \
ret__ = raw_cpu_read(pcp); \
raw_local_irq_restore(flags); \
ret__; \
})
# ifndef this_cpu_add_return_1
# define this_cpu_add_return_1(pcp, val) _this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_2
# define this_cpu_add_return_2(pcp, val) _this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_4
# define this_cpu_add_return_4(pcp, val) _this_cpu_generic_add_return(pcp, val)
# endif
# ifndef this_cpu_add_return_8
# define this_cpu_add_return_8(pcp, val) _this_cpu_generic_add_return(pcp, val)
# endif
#define _this_cpu_generic_xchg(pcp, nval) \
({ typeof(pcp) ret__; \
unsigned long flags; \
raw_local_irq_save(flags); \
ret__ = raw_cpu_read(pcp); \
raw_cpu_write(pcp, nval); \
raw_local_irq_restore(flags); \
ret__; \
})
# ifndef this_cpu_xchg_1
# define this_cpu_xchg_1(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_2
# define this_cpu_xchg_2(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_4
# define this_cpu_xchg_4(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
# endif
# ifndef this_cpu_xchg_8
# define this_cpu_xchg_8(pcp, nval) _this_cpu_generic_xchg(pcp, nval)
# endif
#define _this_cpu_generic_cmpxchg(pcp, oval, nval) \
({ \
typeof(pcp) ret__; \
unsigned long flags; \
raw_local_irq_save(flags); \
ret__ = raw_cpu_read(pcp); \
if (ret__ == (oval)) \
raw_cpu_write(pcp, nval); \
raw_local_irq_restore(flags); \
ret__; \
})
# ifndef this_cpu_cmpxchg_1
# define this_cpu_cmpxchg_1(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef this_cpu_cmpxchg_2
# define this_cpu_cmpxchg_2(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef this_cpu_cmpxchg_4
# define this_cpu_cmpxchg_4(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
# ifndef this_cpu_cmpxchg_8
# define this_cpu_cmpxchg_8(pcp, oval, nval) _this_cpu_generic_cmpxchg(pcp, oval, nval)
# endif
#define _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2) \
({ \
int ret__; \
unsigned long flags; \
raw_local_irq_save(flags); \
ret__ = raw_cpu_generic_cmpxchg_double(pcp1, pcp2, \
oval1, oval2, nval1, nval2); \
raw_local_irq_restore(flags); \
ret__; \
})
# ifndef this_cpu_cmpxchg_double_1
# define this_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2) \
_this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef this_cpu_cmpxchg_double_2
# define this_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2) \
_this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef this_cpu_cmpxchg_double_4
# define this_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2) \
_this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
# ifndef this_cpu_cmpxchg_double_8
# define this_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2) \
_this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
# endif
#endif /* _ASM_GENERIC_PERCPU_H_ */
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