LXR linux-old/include/asm-arm/cpu-single.h

   1/*
   2 *  linux/include/asm-arm/cpu-single.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/*
  11 * Single CPU
  12 */
  13#ifdef __STDC__
  14#define __cpu_fn(name,x)        cpu_##name##x
  15#else
  16#define __cpu_fn(name,x)        cpu_/**/name/**/x
  17#endif
  18#define cpu_fn(name,x)          __cpu_fn(name,x)
  19
  20/*
  21 * If we are supporting multiple CPUs, then we must use a table of
  22 * function pointers for this lot.  Otherwise, we can optimise the
  23 * table away.
  24 */
  25#define cpu_data_abort                  cpu_fn(CPU_NAME,_data_abort)
  26#define cpu_check_bugs                  cpu_fn(CPU_NAME,_check_bugs)
  27#define cpu_proc_init                   cpu_fn(CPU_NAME,_proc_init)
  28#define cpu_proc_fin                    cpu_fn(CPU_NAME,_proc_fin)
  29#define cpu_reset                       cpu_fn(CPU_NAME,_reset)
  30#define cpu_do_idle                     cpu_fn(CPU_NAME,_do_idle)
  31
  32#define cpu_cache_clean_invalidate_all  cpu_fn(CPU_NAME,_cache_clean_invalidate_all)
  33#define cpu_cache_clean_invalidate_range cpu_fn(CPU_NAME,_cache_clean_invalidate_range)
  34#define cpu_flush_ram_page              cpu_fn(CPU_NAME,_flush_ram_page)
  35
  36#define cpu_dcache_invalidate_range     cpu_fn(CPU_NAME,_dcache_invalidate_range)
  37#define cpu_dcache_clean_range          cpu_fn(CPU_NAME,_dcache_clean_range)
  38#define cpu_dcache_clean_page           cpu_fn(CPU_NAME,_dcache_clean_page)
  39#define cpu_dcache_clean_entry          cpu_fn(CPU_NAME,_dcache_clean_entry)
  40
  41#define cpu_icache_invalidate_range     cpu_fn(CPU_NAME,_icache_invalidate_range)
  42#define cpu_icache_invalidate_page      cpu_fn(CPU_NAME,_icache_invalidate_page)
  43
  44#define cpu_tlb_invalidate_all          cpu_fn(CPU_NAME,_tlb_invalidate_all)
  45#define cpu_tlb_invalidate_range        cpu_fn(CPU_NAME,_tlb_invalidate_range)
  46#define cpu_tlb_invalidate_page         cpu_fn(CPU_NAME,_tlb_invalidate_page)
  47
  48#define cpu_set_pgd                     cpu_fn(CPU_NAME,_set_pgd)
  49#define cpu_set_pmd                     cpu_fn(CPU_NAME,_set_pmd)
  50#define cpu_set_pte                     cpu_fn(CPU_NAME,_set_pte)
  51
  52#ifndef __ASSEMBLY__
  53
  54#include <asm/memory.h>
  55#include <asm/page.h>
  56
  57/* forward declare task_struct */
  58struct task_struct;
  59
  60/* declare all the functions as extern */
  61extern void cpu_data_abort(unsigned long pc);
  62extern void cpu_check_bugs(void);
  63extern void cpu_proc_init(void);
  64extern void cpu_proc_fin(void);
  65extern int cpu_do_idle(int mode);
  66
  67extern void cpu_cache_clean_invalidate_all(void);
  68extern void cpu_cache_clean_invalidate_range(unsigned long address, unsigned long end, int flags);
  69extern void cpu_flush_ram_page(void *virt_page);
  70
  71extern void cpu_dcache_invalidate_range(unsigned long start, unsigned long end);
  72extern void cpu_dcache_clean_range(unsigned long start, unsigned long end);
  73extern void cpu_dcache_clean_page(void *virt_page);
  74extern void cpu_dcache_clean_entry(unsigned long address);
  75
  76extern void cpu_icache_invalidate_range(unsigned long start, unsigned long end);
  77extern void cpu_icache_invalidate_page(void *virt_page);
  78
  79extern void cpu_tlb_invalidate_all(void);
  80extern void cpu_tlb_invalidate_range(unsigned long address, unsigned long end);
  81extern void cpu_tlb_invalidate_page(unsigned long address, int flags);
  82
  83extern void cpu_set_pgd(unsigned long pgd_phys);
  84extern void cpu_set_pmd(pmd_t *pmdp, pmd_t pmd);
  85extern void cpu_set_pte(pte_t *ptep, pte_t pte);
  86extern volatile void cpu_reset(unsigned long addr);
  87
  88#define cpu_switch_mm(pgd,tsk) cpu_set_pgd(__virt_to_phys((unsigned long)(pgd)))
  89
  90#define cpu_get_pgd()   \
  91        ({                                              \
  92                unsigned long pg;                       \
  93                __asm__("mrc p15, 0, %0, c2, c0, 0"     \
  94                         : "=r" (pg));                  \
  95                pg &= ~0x3fff;                          \
  96                (pgd_t *)phys_to_virt(pg);              \
  97        })
  98
  99#endif
 100