arch/xtensa/kernel/xtensa_ksyms.c

   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  */
  41 EXPORT_SYMBOL(memset);
  42 EXPORT_SYMBOL(memcpy);
  43 EXPORT_SYMBOL(memmove);
  44 EXPORT_SYMBOL(__strncpy_user);
  45 EXPORT_SYMBOL(clear_page);
  46 EXPORT_SYMBOL(copy_page);
  47
  48 EXPORT_SYMBOL(empty_zero_page);
  49
  50 /*
  51  * gcc internal math functions
  52  */
  53 extern long long __ashrdi3(long long, int);
  54 extern long long __ashldi3(long long, int);
  55 extern long long __lshrdi3(long long, int);
  56 extern int __divsi3(int, int);
  57 extern int __modsi3(int, int);
  58 extern long long __muldi3(long long, long long);
  59 extern int __mulsi3(int, int);
  60 extern unsigned int __udivsi3(unsigned int, unsigned int);
  61 extern unsigned int __umodsi3(unsigned int, unsigned int);
  62 extern unsigned long long __umoddi3(unsigned long long, unsigned long long);
  63 extern unsigned long long __udivdi3(unsigned long long, unsigned long long);
  64 extern int __ucmpdi2(int, int);
  65
  66 EXPORT_SYMBOL(__ashldi3);
  67 EXPORT_SYMBOL(__ashrdi3);
  68 EXPORT_SYMBOL(__lshrdi3);
  69 EXPORT_SYMBOL(__divsi3);
  70 EXPORT_SYMBOL(__modsi3);
  71 EXPORT_SYMBOL(__muldi3);
  72 EXPORT_SYMBOL(__mulsi3);
  73 EXPORT_SYMBOL(__udivsi3);
  74 EXPORT_SYMBOL(__umodsi3);
  75 EXPORT_SYMBOL(__udivdi3);
  76 EXPORT_SYMBOL(__umoddi3);
  77 EXPORT_SYMBOL(__ucmpdi2);
  78
  79 void __xtensa_libgcc_window_spill(void)
  80 {
  81         BUG();
  82 }
  83 EXPORT_SYMBOL(__xtensa_libgcc_window_spill);
  84
  85 unsigned int __sync_fetch_and_and_4(volatile void *p, unsigned int v)
  86 {
  87         BUG();
  88 }
  89 EXPORT_SYMBOL(__sync_fetch_and_and_4);
  90
  91 unsigned int __sync_fetch_and_or_4(volatile void *p, unsigned int v)
  92 {
  93         BUG();
  94 }
  95 EXPORT_SYMBOL(__sync_fetch_and_or_4);
  96
  97 /*
  98  * Networking support
  99  */
 100 EXPORT_SYMBOL(csum_partial);
 101 EXPORT_SYMBOL(csum_partial_copy_generic);
 102
 103 /*
 104  * Architecture-specific symbols
 105  */
 106 EXPORT_SYMBOL(__xtensa_copy_user);
 107 EXPORT_SYMBOL(__invalidate_icache_range);
 108
 109 /*
 110  * Kernel hacking ...
 111  */
 112
 113 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 114 // FIXME EXPORT_SYMBOL(screen_info);
 115 #endif
 116
 117 extern long common_exception_return;
 118 EXPORT_SYMBOL(common_exception_return);
 119
 120 #ifdef CONFIG_FUNCTION_TRACER
 121 EXPORT_SYMBOL(_mcount);
 122 #endif
 123
 124 EXPORT_SYMBOL(__invalidate_dcache_range);
 125 #if XCHAL_DCACHE_IS_WRITEBACK
 126 EXPORT_SYMBOL(__flush_dcache_range);
 127 #endif