arch/arm/include/asm/cpu-multi32.h

   1 /*
   2  *  arch/arm/include/asm/cpu-multi32.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 #include <asm/page.h>
  11
  12 struct mm_struct;
  13
  14 /*
  15  * Don't change this structure - ASM code
  16  * relies on it.
  17  */
  18 extern struct processor {
  19         /* MISC
  20          * get data abort address/flags
  21          */
  22         void (*_data_abort)(unsigned long pc);
  23         /*
  24          * Retrieve prefetch fault address
  25          */
  26         unsigned long (*_prefetch_abort)(unsigned long lr);
  27         /*
  28          * Set up any processor specifics
  29          */
  30         void (*_proc_init)(void);
  31         /*
  32          * Disable any processor specifics
  33          */
  34         void (*_proc_fin)(void);
  35         /*
  36          * Special stuff for a reset
  37          */
  38         void (*reset)(unsigned long addr) __attribute__((noreturn));
  39         /*
  40          * Idle the processor
  41          */
  42         int (*_do_idle)(void);
  43         /*
  44          * Processor architecture specific
  45          */
  46         /*
  47          * clean a virtual address range from the
  48          * D-cache without flushing the cache.
  49          */
  50         void (*dcache_clean_area)(void *addr, int size);
  51
  52         /*
  53          * Set the page table
  54          */
  55         void (*switch_mm)(unsigned long pgd_phys, struct mm_struct *mm);
  56         /*
  57          * Set a possibly extended PTE.  Non-extended PTEs should
  58          * ignore 'ext'.
  59          */
  60         void (*set_pte_ext)(pte_t *ptep, pte_t pte, unsigned int ext);
  61 } processor;
  62
  63 #define cpu_proc_init()                 processor._proc_init()
  64 #define cpu_proc_fin()                  processor._proc_fin()
  65 #define cpu_reset(addr)                 processor.reset(addr)
  66 #define cpu_do_idle()                   processor._do_idle()
  67 #define cpu_dcache_clean_area(addr,sz)  processor.dcache_clean_area(addr,sz)
  68 #define cpu_set_pte_ext(ptep,pte,ext)   processor.set_pte_ext(ptep,pte,ext)
  69 #define cpu_do_switch_mm(pgd,mm)        processor.switch_mm(pgd,mm)