include/asm-arm/cpu-multi26.h

   1 /*
   2  *  linux/include/asm-arm/cpu-multi26.h
   3  *
   4  *  Copyright (C) 2000 Russell King
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10 #ifndef __ASSEMBLY__
  11
  12 #include <asm/page.h>
  13
  14 /* forward-declare task_struct */
  15 struct task_struct;
  16
  17 /*
  18  * Don't change this structure - ASM code
  19  * relies on it.
  20  */
  21 extern struct processor {
  22         /* check for any bugs */
  23         void (*_check_bugs)(void);
  24         /* Set up any processor specifics */
  25         void (*_proc_init)(void);
  26         /* Disable any processor specifics */
  27         void (*_proc_fin)(void);
  28         /* set the MEMC hardware mappings */
  29         void (*_set_pgd)(pgd_t *pgd);
  30         /* XCHG */
  31         unsigned long (*_xchg_1)(unsigned long x, volatile void *ptr);
  32         unsigned long (*_xchg_4)(unsigned long x, volatile void *ptr);
  33 } processor;
  34
  35 extern const struct processor arm2_processor_functions;
  36 extern const struct processor arm250_processor_functions;
  37 extern const struct processor arm3_processor_functions;
  38
  39 #define cpu_check_bugs()                        processor._check_bugs()
  40 #define cpu_proc_init()                         processor._proc_init()
  41 #define cpu_proc_fin()                          processor._proc_fin()
  42 #define cpu_do_idle()                           do { } while (0)
  43 #define cpu_switch_mm(pgd,tsk)                  processor._set_pgd(pgd)
  44 #define cpu_xchg_1(x,ptr)                       processor._xchg_1(x,ptr)
  45 #define cpu_xchg_4(x,ptr)                       processor._xchg_4(x,ptr)
  46
  47 extern void cpu_memc_update_all(pgd_t *pgd);
  48 extern void cpu_memc_update_entry(pgd_t *pgd, unsigned long phys_pte, unsigned long log_addr);
  49
  50 #endif