LXR linux/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
  12struct mm_struct;
  13
  14/*
  15 * Don't change this structure - ASM code
  16 * relies on it.
  17 */
  18extern 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)
  70