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#ifndef _LINUX_KERNEL_H

#define _LINUX_KERNEL_H

/*

 * 'kernel.h' contains some often-used function prototypes etc

 */

#ifdef __KERNEL__

#include <stdarg.h>

#include <linux/linkage.h>

#include <linux/stddef.h>

#include <linux/types.h>

#include <linux/compiler.h>

#include <linux/bitops.h>

#include <linux/log2.h>

#include <asm/byteorder.h>

#include <asm/bug.h>

extern const char linux_banner[];

extern const char linux_proc_banner[];

#define INT_MAX         ((int)(~0U>>1))

#define INT_MIN         (-INT_MAX - 1)

#define UINT_MAX        (~0U)

#define LONG_MAX        ((long)(~0UL>>1))

#define LONG_MIN        (-LONG_MAX - 1)

#define ULONG_MAX       (~0UL)

#define LLONG_MAX       ((long long)(~0ULL>>1))

#define LLONG_MIN       (-LLONG_MAX - 1)

#define ULLONG_MAX      (~0ULL)

#define STACK_MAGIC     0xdeadbeef

#define ALIGN(x,a)              __ALIGN_MASK(x,(typeof(x))(a)-1)

#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))

#define PTR_ALIGN(p, a)         ((typeof(p))ALIGN((unsigned long)(p), (a)))

#define IS_ALIGNED(x,a)         (((x) % ((typeof(x))(a))) == 0)

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))

#define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))

#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))

#ifdef CONFIG_LBD

# include <asm/div64.h>

# define sector_div(a, b) do_div(a, b)

#else

# define sector_div(n, b)( \

{ \

        int _res; \

        _res = (n) % (b); \

        (n) /= (b); \

        _res; \

} \

)

#endif

/**

 * upper_32_bits - return bits 32-63 of a number

 * @n: the number we're accessing

 *

 * A basic shift-right of a 64- or 32-bit quantity.  Use this to suppress

 * the "right shift count >= width of type" warning when that quantity is

 * 32-bits.

 */

#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))

#define KERN_EMERG      "<0>"    /* system is unusable                   */

#define KERN_ALERT      "<1>"   /* action must be taken immediately     */

#define KERN_CRIT       "<2>"   /* critical conditions                  */

#define KERN_ERR        "<3>"   /* error conditions                     */

#define KERN_WARNING    "<4>"   /* warning conditions                   */

#define KERN_NOTICE     "<5>"   /* normal but significant condition     */

#define KERN_INFO       "<6>"   /* informational                        */

#define KERN_DEBUG      "<7>"   /* debug-level messages                 */

/*

 * Annotation for a "continued" line of log printout (only done after a

 * line that had no enclosing \n). Only to be used by core/arch code

 * during early bootup (a continued line is not SMP-safe otherwise).

 */

#define KERN_CONT       ""

extern int console_printk[];

#define console_loglevel (console_printk[0])

#define default_message_loglevel (console_printk[1])

#define minimum_console_loglevel (console_printk[2])

#define default_console_loglevel (console_printk[3])

struct completion;

struct pt_regs;

struct user;

/**

 * might_sleep - annotation for functions that can sleep

 *

 * this macro will print a stack trace if it is executed in an atomic

 * context (spinlock, irq-handler, ...).

 *

 * This is a useful debugging help to be able to catch problems early and not

 * be bitten later when the calling function happens to sleep when it is not

 * supposed to.

 */

#ifdef CONFIG_PREEMPT_VOLUNTARY

extern int cond_resched(void);

# define might_resched() cond_resched()

#else

# define might_resched() do { } while (0)

#endif

#ifdef CONFIG_DEBUG_SPINLOCK_SLEEP

  void __might_sleep(char *file, int line);

# define might_sleep() \

        do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)

#else

# define might_sleep() do { might_resched(); } while (0)

#endif

#define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)

#define abs(x) ({                               \

                int __x = (x);                  \

                (__x < 0) ? -__x : __x;          \

        })

extern struct atomic_notifier_head panic_notifier_list;

extern long (*panic_blink)(long time);

NORET_TYPE void panic(const char * fmt, ...)

        __attribute__ ((NORET_AND format (printf, 1, 2))) __cold;

extern void oops_enter(void);

extern void oops_exit(void);

extern int oops_may_print(void);

fastcall NORET_TYPE void do_exit(long error_code)

        ATTRIB_NORET;

NORET_TYPE void complete_and_exit(struct completion *, long)

        ATTRIB_NORET;

extern unsigned long simple_strtoul(const char *,char **,unsigned int);

extern long simple_strtol(const char *,char **,unsigned int);

extern unsigned long long simple_strtoull(const char *,char **,unsigned int);

extern long long simple_strtoll(const char *,char **,unsigned int);

extern int sprintf(char * buf, const char * fmt, ...)

        __attribute__ ((format (printf, 2, 3)));

extern int vsprintf(char *buf, const char *, va_list)

        __attribute__ ((format (printf, 2, 0)));

extern int snprintf(char * buf, size_t size, const char * fmt, ...)

        __attribute__ ((format (printf, 3, 4)));

extern int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)

        __attribute__ ((format (printf, 3, 0)));

extern int scnprintf(char * buf, size_t size, const char * fmt, ...)

        __attribute__ ((format (printf, 3, 4)));

extern int vscnprintf(char *buf, size_t size, const char *fmt, va_list args)

        __attribute__ ((format (printf, 3, 0)));

extern char *kasprintf(gfp_t gfp, const char *fmt, ...)

        __attribute__ ((format (printf, 2, 3)));

extern char *kvasprintf(gfp_t gfp, const char *fmt, va_list args);

extern int sscanf(const char *, const char *, ...)

        __attribute__ ((format (scanf, 2, 3)));

extern int vsscanf(const char *, const char *, va_list)

        __attribute__ ((format (scanf, 2, 0)));

extern int get_option(char **str, int *pint);

extern char *get_options(const char *str, int nints, int *ints);

extern unsigned long long memparse(char *ptr, char **retptr);

extern int core_kernel_text(unsigned long addr);

extern int __kernel_text_address(unsigned long addr);

extern int kernel_text_address(unsigned long addr);

struct pid;

extern struct pid *session_of_pgrp(struct pid *pgrp);

extern void dump_thread(struct pt_regs *regs, struct user *dump);

#ifdef CONFIG_PRINTK

asmlinkage int vprintk(const char *fmt, va_list args)

        __attribute__ ((format (printf, 1, 0)));

asmlinkage int printk(const char * fmt, ...)

        __attribute__ ((format (printf, 1, 2))) __cold;

extern int log_buf_get_len(void);

extern int log_buf_read(int idx);

extern int log_buf_copy(char *dest, int idx, int len);

#else

static inline int vprintk(const char *s, va_list args)

        __attribute__ ((format (printf, 1, 0)));

static inline int vprintk(const char *s, va_list args) { return 0; }

static inline int printk(const char *s, ...)

        __attribute__ ((format (printf, 1, 2)));

static inline int __cold printk(const char *s, ...) { return 0; }

static inline int log_buf_get_len(void) { return 0; }

static inline int log_buf_read(int idx) { return 0; }

static inline int log_buf_copy(char *dest, int idx, int len) { return 0; }

#endif

unsigned long int_sqrt(unsigned long);

extern int printk_ratelimit(void);

extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);

extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,

                                unsigned int interval_msec);

static inline void console_silent(void)

{

        console_loglevel = 0;

}

static inline void console_verbose(void)

{

        if (console_loglevel)

                console_loglevel = 15;

}

extern void bust_spinlocks(int yes);

extern void wake_up_klogd(void);

extern int oops_in_progress;            /* If set, an oops, panic(), BUG() or die() is in progress */

extern int panic_timeout;

extern int panic_on_oops;

extern int panic_on_unrecovered_nmi;

extern int tainted;

extern const char *print_tainted(void);

extern void add_taint(unsigned);

/* Values used for system_state */

extern enum system_states {

        SYSTEM_BOOTING,

        SYSTEM_RUNNING,

        SYSTEM_HALT,

        SYSTEM_POWER_OFF,

        SYSTEM_RESTART,

        SYSTEM_SUSPEND_DISK,

} system_state;

#define TAINT_PROPRIETARY_MODULE        (1<<0)

#define TAINT_FORCED_MODULE             (1<<1)

#define TAINT_UNSAFE_SMP                (1<<2)

#define TAINT_FORCED_RMMOD              (1<<3)

#define TAINT_MACHINE_CHECK             (1<<4)

#define TAINT_BAD_PAGE                  (1<<5)

#define TAINT_USER                      (1<<6)

#define TAINT_DIE                       (1<<7)

extern void dump_stack(void) __cold;

enum {

        DUMP_PREFIX_NONE,

        DUMP_PREFIX_ADDRESS,

        DUMP_PREFIX_OFFSET

};

extern void hex_dump_to_buffer(const void *buf, size_t len,

                                int rowsize, int groupsize,

                                char *linebuf, size_t linebuflen, bool ascii);

extern void print_hex_dump(const char *level, const char *prefix_str,

                                int prefix_type, int rowsize, int groupsize,

                                const void *buf, size_t len, bool ascii);

extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,

                        const void *buf, size_t len);

#define hex_asc(x)      "0123456789abcdef"[x]

#define pr_emerg(fmt, arg...) \

        printk(KERN_EMERG fmt, ##arg)

#define pr_alert(fmt, arg...) \

        printk(KERN_ALERT fmt, ##arg)

#define pr_crit(fmt, arg...) \

        printk(KERN_CRIT fmt, ##arg)

#define pr_err(fmt, arg...) \

        printk(KERN_ERR fmt, ##arg)

#define pr_warning(fmt, arg...) \

        printk(KERN_WARNING fmt, ##arg)

#define pr_notice(fmt, arg...) \

        printk(KERN_NOTICE fmt, ##arg)

#define pr_info(fmt, arg...) \

        printk(KERN_INFO fmt, ##arg)

#ifdef DEBUG

/* If you are writing a driver, please use dev_dbg instead */

#define pr_debug(fmt, arg...) \

        printk(KERN_DEBUG fmt, ##arg)

#else

static inline int __attribute__ ((format (printf, 1, 2))) pr_debug(const char * fmt, ...)

{

        return 0;

}

#endif

/*

 *      Display an IP address in readable format.

 */

#define NIPQUAD(addr) \

        ((unsigned char *)&addr)[0], \

        ((unsigned char *)&addr)[1], \

        ((unsigned char *)&addr)[2], \

        ((unsigned char *)&addr)[3]

#define NIPQUAD_FMT "%u.%u.%u.%u"

#define NIP6(addr) \

        ntohs((addr).s6_addr16[0]), \

        ntohs((addr).s6_addr16[1]), \

        ntohs((addr).s6_addr16[2]), \

        ntohs((addr).s6_addr16[3]), \

        ntohs((addr).s6_addr16[4]), \

        ntohs((addr).s6_addr16[5]), \

        ntohs((addr).s6_addr16[6]), \

        ntohs((addr).s6_addr16[7])

#define NIP6_FMT "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x"

#define NIP6_SEQFMT "%04x%04x%04x%04x%04x%04x%04x%04x"

#if defined(__LITTLE_ENDIAN)

#define HIPQUAD(addr) \

        ((unsigned char *)&addr)[3], \

        ((unsigned char *)&addr)[2], \

        ((unsigned char *)&addr)[1], \

        ((unsigned char *)&addr)[0]

#elif defined(__BIG_ENDIAN)

#define HIPQUAD NIPQUAD

#else

#error "Please fix asm/byteorder.h"

#endif /* __LITTLE_ENDIAN */

/*

 * min()/max() macros that also do

 * strict type-checking.. See the

 * "unnecessary" pointer comparison.

 */

#define min(x,y) ({ \

        typeof(x) _x = (x);     \

        typeof(y) _y = (y);     \

        (void) (&_x == &_y);            \

        _x < _y ? _x : _y; })

#define max(x,y) ({ \

        typeof(x) _x = (x);     \

        typeof(y) _y = (y);     \

        (void) (&_x == &_y);            \

        _x > _y ? _x : _y; })

/*

 * ..and if you can't take the strict

 * types, you can specify one yourself.

 *

 * Or not use min/max at all, of course.

 */

#define min_t(type,x,y) \

        ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })

#define max_t(type,x,y) \

        ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })

/**

 * container_of - cast a member of a structure out to the containing structure

 * @ptr:        the pointer to the member.

 * @type:       the type of the container struct this is embedded in.

 * @member:     the name of the member within the struct.

 *

 */

#define container_of(ptr, type, member) ({                      \

        const typeof( ((type *)0)->member ) *__mptr = (ptr);     \

        (type *)( (char *)__mptr - offsetof(type,member) );})

/*

 * Check at compile time that something is of a particular type.

 * Always evaluates to 1 so you may use it easily in comparisons.

 */

#define typecheck(type,x) \

({      type __dummy; \

        typeof(x) __dummy2; \

        (void)(&__dummy == &__dummy2); \

        1; \

})

/*

 * Check at compile time that 'function' is a certain type, or is a pointer

 * to that type (needs to use typedef for the function type.)

 */

#define typecheck_fn(type,function) \

({      typeof(type) __tmp = function; \

        (void)__tmp; \

})

struct sysinfo;

extern int do_sysinfo(struct sysinfo *info);

#endif /* __KERNEL__ */

#define SI_LOAD_SHIFT   16

struct sysinfo {

        long uptime;                    /* Seconds since boot */

        unsigned long loads[3];         /* 1, 5, and 15 minute load averages */

        unsigned long totalram;         /* Total usable main memory size */

        unsigned long freeram;          /* Available memory size */

        unsigned long sharedram;        /* Amount of shared memory */

        unsigned long bufferram;        /* Memory used by buffers */

        unsigned long totalswap;        /* Total swap space size */

        unsigned long freeswap;         /* swap space still available */

        unsigned short procs;           /* Number of current processes */

        unsigned short pad;             /* explicit padding for m68k */

        unsigned long totalhigh;        /* Total high memory size */

        unsigned long freehigh;         /* Available high memory size */

        unsigned int mem_unit;          /* Memory unit size in bytes */

        char _f[20-2*sizeof(long)-sizeof(int)]; /* Padding: libc5 uses this.. */

};

/* Force a compilation error if condition is true */

#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))

/* Force a compilation error if condition is true, but also produce a

   result (of value 0 and type size_t), so the expression can be used

   e.g. in a structure initializer (or where-ever else comma expressions

   aren't permitted). */

#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)

/* Trap pasters of __FUNCTION__ at compile-time */

#define __FUNCTION__ (__func__)

/* This helps us to avoid #ifdef CONFIG_NUMA */

#ifdef CONFIG_NUMA

#define NUMA_BUILD 1

#else

#define NUMA_BUILD 0

#endif

#endif