forked from Minki/linux
4db2ce0199
Several implementations were essentialy a common piece of C code using the cmpxchg() macro. Put the implementation in one spot that everyone can share, and convert sparc64 over to using this. Alpha is the lone arch-specific implementation, which codes up a special fast path for the common case in order to avoid GP reloading which a pure C version would require. Signed-off-by: David S. Miller <davem@davemloft.net>
206 lines
5.0 KiB
C
206 lines
5.0 KiB
C
#include <linux/config.h>
|
|
#include <linux/module.h>
|
|
#include <linux/smp.h>
|
|
#include <linux/user.h>
|
|
#include <linux/sched.h>
|
|
#include <linux/in6.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/smp_lock.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/apm_bios.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/string.h>
|
|
#include <linux/syscalls.h>
|
|
#include <linux/tty.h>
|
|
#include <linux/ioctl32.h>
|
|
|
|
#include <asm/semaphore.h>
|
|
#include <asm/processor.h>
|
|
#include <asm/i387.h>
|
|
#include <asm/uaccess.h>
|
|
#include <asm/checksum.h>
|
|
#include <asm/io.h>
|
|
#include <asm/delay.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/mmx.h>
|
|
#include <asm/desc.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/pgalloc.h>
|
|
#include <asm/nmi.h>
|
|
#include <asm/kdebug.h>
|
|
#include <asm/unistd.h>
|
|
#include <asm/tlbflush.h>
|
|
#include <asm/kdebug.h>
|
|
|
|
extern spinlock_t rtc_lock;
|
|
|
|
#ifdef CONFIG_SMP
|
|
extern void __write_lock_failed(rwlock_t *rw);
|
|
extern void __read_lock_failed(rwlock_t *rw);
|
|
#endif
|
|
|
|
#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE)
|
|
extern struct drive_info_struct drive_info;
|
|
EXPORT_SYMBOL(drive_info);
|
|
#endif
|
|
|
|
extern unsigned long get_cmos_time(void);
|
|
|
|
/* platform dependent support */
|
|
EXPORT_SYMBOL(boot_cpu_data);
|
|
//EXPORT_SYMBOL(dump_fpu);
|
|
EXPORT_SYMBOL(__ioremap);
|
|
EXPORT_SYMBOL(ioremap_nocache);
|
|
EXPORT_SYMBOL(iounmap);
|
|
EXPORT_SYMBOL(enable_irq);
|
|
EXPORT_SYMBOL(disable_irq);
|
|
EXPORT_SYMBOL(disable_irq_nosync);
|
|
EXPORT_SYMBOL(probe_irq_mask);
|
|
EXPORT_SYMBOL(kernel_thread);
|
|
EXPORT_SYMBOL(pm_idle);
|
|
EXPORT_SYMBOL(pm_power_off);
|
|
EXPORT_SYMBOL(get_cmos_time);
|
|
|
|
EXPORT_SYMBOL(__down_failed);
|
|
EXPORT_SYMBOL(__down_failed_interruptible);
|
|
EXPORT_SYMBOL(__down_failed_trylock);
|
|
EXPORT_SYMBOL(__up_wakeup);
|
|
/* Networking helper routines. */
|
|
EXPORT_SYMBOL(csum_partial_copy_nocheck);
|
|
EXPORT_SYMBOL(ip_compute_csum);
|
|
/* Delay loops */
|
|
EXPORT_SYMBOL(__udelay);
|
|
EXPORT_SYMBOL(__ndelay);
|
|
EXPORT_SYMBOL(__delay);
|
|
EXPORT_SYMBOL(__const_udelay);
|
|
|
|
EXPORT_SYMBOL(__get_user_1);
|
|
EXPORT_SYMBOL(__get_user_2);
|
|
EXPORT_SYMBOL(__get_user_4);
|
|
EXPORT_SYMBOL(__get_user_8);
|
|
EXPORT_SYMBOL(__put_user_1);
|
|
EXPORT_SYMBOL(__put_user_2);
|
|
EXPORT_SYMBOL(__put_user_4);
|
|
EXPORT_SYMBOL(__put_user_8);
|
|
|
|
EXPORT_SYMBOL(strpbrk);
|
|
EXPORT_SYMBOL(strstr);
|
|
|
|
EXPORT_SYMBOL(strncpy_from_user);
|
|
EXPORT_SYMBOL(__strncpy_from_user);
|
|
EXPORT_SYMBOL(clear_user);
|
|
EXPORT_SYMBOL(__clear_user);
|
|
EXPORT_SYMBOL(copy_user_generic);
|
|
EXPORT_SYMBOL(copy_from_user);
|
|
EXPORT_SYMBOL(copy_to_user);
|
|
EXPORT_SYMBOL(copy_in_user);
|
|
EXPORT_SYMBOL(strnlen_user);
|
|
|
|
#ifdef CONFIG_PCI
|
|
EXPORT_SYMBOL(pci_alloc_consistent);
|
|
EXPORT_SYMBOL(pci_free_consistent);
|
|
#endif
|
|
|
|
#ifdef CONFIG_PCI
|
|
EXPORT_SYMBOL(pci_mem_start);
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(copy_page);
|
|
EXPORT_SYMBOL(clear_page);
|
|
|
|
EXPORT_SYMBOL(cpu_pda);
|
|
#ifdef CONFIG_SMP
|
|
EXPORT_SYMBOL(cpu_data);
|
|
EXPORT_SYMBOL(cpu_online_map);
|
|
EXPORT_SYMBOL(__write_lock_failed);
|
|
EXPORT_SYMBOL(__read_lock_failed);
|
|
|
|
EXPORT_SYMBOL(synchronize_irq);
|
|
EXPORT_SYMBOL(smp_call_function);
|
|
EXPORT_SYMBOL(cpu_callout_map);
|
|
#endif
|
|
|
|
#ifdef CONFIG_VT
|
|
EXPORT_SYMBOL(screen_info);
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(get_wchan);
|
|
|
|
EXPORT_SYMBOL(rtc_lock);
|
|
|
|
EXPORT_SYMBOL_GPL(set_nmi_callback);
|
|
EXPORT_SYMBOL_GPL(unset_nmi_callback);
|
|
|
|
/* Export string functions. We normally rely on gcc builtin for most of these,
|
|
but gcc sometimes decides not to inline them. */
|
|
#undef memcpy
|
|
#undef memset
|
|
#undef memmove
|
|
#undef memchr
|
|
#undef strlen
|
|
#undef strncmp
|
|
#undef strncpy
|
|
#undef strchr
|
|
|
|
extern void * memset(void *,int,__kernel_size_t);
|
|
extern size_t strlen(const char *);
|
|
extern void * memmove(void * dest,const void *src,size_t count);
|
|
extern void *memchr(const void *s, int c, size_t n);
|
|
extern void * memcpy(void *,const void *,__kernel_size_t);
|
|
extern void * __memcpy(void *,const void *,__kernel_size_t);
|
|
|
|
EXPORT_SYMBOL(memset);
|
|
EXPORT_SYMBOL(strlen);
|
|
EXPORT_SYMBOL(memmove);
|
|
EXPORT_SYMBOL(strncmp);
|
|
EXPORT_SYMBOL(strncpy);
|
|
EXPORT_SYMBOL(strchr);
|
|
EXPORT_SYMBOL(strncat);
|
|
EXPORT_SYMBOL(memchr);
|
|
EXPORT_SYMBOL(strrchr);
|
|
EXPORT_SYMBOL(strnlen);
|
|
EXPORT_SYMBOL(memscan);
|
|
EXPORT_SYMBOL(memcpy);
|
|
EXPORT_SYMBOL(__memcpy);
|
|
|
|
#ifdef CONFIG_RWSEM_XCHGADD_ALGORITHM
|
|
/* prototypes are wrong, these are assembly with custom calling functions */
|
|
extern void rwsem_down_read_failed_thunk(void);
|
|
extern void rwsem_wake_thunk(void);
|
|
extern void rwsem_downgrade_thunk(void);
|
|
extern void rwsem_down_write_failed_thunk(void);
|
|
EXPORT_SYMBOL(rwsem_down_read_failed_thunk);
|
|
EXPORT_SYMBOL(rwsem_wake_thunk);
|
|
EXPORT_SYMBOL(rwsem_downgrade_thunk);
|
|
EXPORT_SYMBOL(rwsem_down_write_failed_thunk);
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(empty_zero_page);
|
|
|
|
EXPORT_SYMBOL(die_chain);
|
|
EXPORT_SYMBOL(register_die_notifier);
|
|
|
|
#ifdef CONFIG_SMP
|
|
EXPORT_SYMBOL(cpu_sibling_map);
|
|
EXPORT_SYMBOL(smp_num_siblings);
|
|
#endif
|
|
|
|
extern void do_softirq_thunk(void);
|
|
EXPORT_SYMBOL(do_softirq_thunk);
|
|
|
|
#ifdef CONFIG_BUG
|
|
EXPORT_SYMBOL(out_of_line_bug);
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(init_level4_pgt);
|
|
|
|
extern unsigned long __supported_pte_mask;
|
|
EXPORT_SYMBOL(__supported_pte_mask);
|
|
|
|
#ifdef CONFIG_SMP
|
|
EXPORT_SYMBOL(flush_tlb_page);
|
|
#endif
|
|
|
|
EXPORT_SYMBOL(cpu_khz);
|