LXR linux/arch/xtensa/kernel/xtensa

   1/*
   2 * arch/xtensa/kernel/xtensa_ksyms.c
   3 *
   4 * Export Xtensa-specific functions for loadable modules.
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 *
  10 * Copyright (C) 2001 - 2005  Tensilica Inc.
  11 *
  12 * Joe Taylor <joe@tensilica.com>
  13 */
  14
  15#include <linux/module.h>
  16#include <linux/string.h>
  17#include <linux/mm.h>
  18#include <linux/interrupt.h>
  19#include <asm/irq.h>
  20#include <linux/in6.h>
  21
  22#include <linux/uaccess.h>
  23#include <asm/cacheflush.h>
  24#include <asm/checksum.h>
  25#include <asm/dma.h>
  26#include <asm/io.h>
  27#include <asm/page.h>
  28#include <asm/pgalloc.h>
  29#include <asm/ftrace.h>
  30#ifdef CONFIG_BLK_DEV_FD
  31#include <asm/floppy.h>
  32#endif
  33#ifdef CONFIG_NET
  34#include <net/checksum.h>
  35#endif /* CONFIG_NET */
  36
  37
  38/*
  39 * String functions
  40 */
  41EXPORT_SYMBOL(memset);
  42EXPORT_SYMBOL(memcpy);
  43EXPORT_SYMBOL(memmove);
  44EXPORT_SYMBOL(__memset);
  45EXPORT_SYMBOL(__memcpy);
  46EXPORT_SYMBOL(__memmove);
  47#ifndef CONFIG_GENERIC_STRNCPY_FROM_USER
  48EXPORT_SYMBOL(__strncpy_user);
  49#endif
  50EXPORT_SYMBOL(clear_page);
  51EXPORT_SYMBOL(copy_page);
  52
  53EXPORT_SYMBOL(empty_zero_page);
  54
  55/*
  56 * gcc internal math functions
  57 */
  58extern long long __ashrdi3(long long, int);
  59extern long long __ashldi3(long long, int);
  60extern long long __lshrdi3(long long, int);
  61extern int __divsi3(int, int);
  62extern int __modsi3(int, int);
  63extern long long __muldi3(long long, long long);
  64extern int __mulsi3(int, int);
  65extern unsigned int __udivsi3(unsigned int, unsigned int);
  66extern unsigned int __umodsi3(unsigned int, unsigned int);
  67extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
  68extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
  69extern int __ucmpdi2(int, int);
  70
  71EXPORT_SYMBOL(__ashldi3);
  72EXPORT_SYMBOL(__ashrdi3);
  73EXPORT_SYMBOL(__lshrdi3);
  74EXPORT_SYMBOL(__divsi3);
  75EXPORT_SYMBOL(__modsi3);
  76EXPORT_SYMBOL(__muldi3);
  77EXPORT_SYMBOL(__mulsi3);
  78EXPORT_SYMBOL(__udivsi3);
  79EXPORT_SYMBOL(__umodsi3);
  80EXPORT_SYMBOL(__udivdi3);
  81EXPORT_SYMBOL(__umoddi3);
  82EXPORT_SYMBOL(__ucmpdi2);
  83
  84void __xtensa_libgcc_window_spill(void)
  85{
  86        BUG();
  87}
  88EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
  89
  90unsigned long __sync_fetch_and_and_4(unsigned long *p, unsigned long v)
  91{
  92        BUG();
  93}
  94EXPORT_SYMBOL(__sync_fetch_and_and_4);
  95
  96unsigned long __sync_fetch_and_or_4(unsigned long *p, unsigned long v)
  97{
  98        BUG();
  99}
 100EXPORT_SYMBOL(__sync_fetch_and_or_4);
 101
 102/*
 103 * Networking support
 104 */
 105EXPORT_SYMBOL(csum_partial);
 106EXPORT_SYMBOL(csum_partial_copy_generic);
 107
 108/*
 109 * Architecture-specific symbols
 110 */
 111EXPORT_SYMBOL(__xtensa_copy_user);
 112EXPORT_SYMBOL(__invalidate_icache_range);
 113
 114/*
 115 * Kernel hacking ...
 116 */
 117
 118#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 119// FIXME EXPORT_SYMBOL(screen_info);
 120#endif
 121
 122EXPORT_SYMBOL(outsb);
 123EXPORT_SYMBOL(outsw);
 124EXPORT_SYMBOL(outsl);
 125EXPORT_SYMBOL(insb);
 126EXPORT_SYMBOL(insw);
 127EXPORT_SYMBOL(insl);
 128
 129extern long common_exception_return;
 130EXPORT_SYMBOL(common_exception_return);
 131
 132#ifdef CONFIG_FUNCTION_TRACER
 133EXPORT_SYMBOL(_mcount);
 134#endif
 135
 136EXPORT_SYMBOL(__invalidate_dcache_range);
 137#if XCHAL_DCACHE_IS_WRITEBACK
 138EXPORT_SYMBOL(__flush_dcache_range);
 139#endif
 140