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 */
  58 struct task_struct;
  59
  60 /* declare all the functions as extern */
  61 extern void cpu_data_abort(unsigned long pc);
  62 extern void cpu_check_bugs(void);
  63 extern void cpu_proc_init(void);
  64 extern void cpu_proc_fin(void);
  65 extern int cpu_do_idle(void);
  66
  67 extern void cpu_cache_clean_invalidate_all(void);
  68 extern void cpu_cache_clean_invalidate_range(unsigned long address, unsigned long end, int flags);
  69 extern void cpu_flush_ram_page(void *virt_page);
  70
  71 extern void cpu_dcache_invalidate_range(unsigned long start, unsigned long end);
  72 extern void cpu_dcache_clean_range(unsigned long start, unsigned long end);
  73 extern void cpu_dcache_clean_page(void *virt_page);
  74 extern void cpu_dcache_clean_entry(unsigned long address);
  75
  76 extern void cpu_icache_invalidate_range(unsigned long start, unsigned long end);
  77 extern void cpu_icache_invalidate_page(void *virt_page);
  78
  79 extern void cpu_tlb_invalidate_all(void);
  80 extern void cpu_tlb_invalidate_range(unsigned long address, unsigned long end);
  81 extern void cpu_tlb_invalidate_page(unsigned long address, int flags);
  82
  83 extern void cpu_set_pgd(unsigned long pgd_phys);
  84 extern void cpu_set_pmd(pmd_t *pmdp, pmd_t pmd);
  85 extern void cpu_set_pte(pte_t *ptep, pte_t pte);
  86 extern 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