arch/sh/include/cpu-sh4/cpu/mmu_context.h

   1 /*
   2  * include/asm-sh/cpu-sh4/mmu_context.h
   3  *
   4  * Copyright (C) 1999 Niibe Yutaka
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License.  See the file "COPYING" in the main directory of this archive
   8  * for more details.
   9  */
  10 #ifndef __ASM_CPU_SH4_MMU_CONTEXT_H
  11 #define __ASM_CPU_SH4_MMU_CONTEXT_H
  12
  13 #define MMU_PTEH        0xFF000000      /* Page table entry register HIGH */
  14 #define MMU_PTEL        0xFF000004      /* Page table entry register LOW */
  15 #define MMU_TTB         0xFF000008      /* Translation table base register */
  16 #define MMU_TEA         0xFF00000C      /* TLB Exception Address */
  17 #define MMU_PTEA        0xFF000034      /* PTE assistance register */
  18 #define MMU_PTEAEX      0xFF00007C      /* PTE ASID extension register */
  19
  20 #define MMUCR           0xFF000010      /* MMU Control Register */
  21
  22 #define MMU_TLB_ENTRY_SHIFT     8
  23
  24 #define MMU_ITLB_ADDRESS_ARRAY  0xF2000000
  25 #define MMU_ITLB_ADDRESS_ARRAY2 0xF2800000
  26 #define MMU_ITLB_DATA_ARRAY     0xF3000000
  27 #define MMU_ITLB_DATA_ARRAY2    0xF3800000
  28
  29 #define MMU_UTLB_ADDRESS_ARRAY  0xF6000000
  30 #define MMU_UTLB_ADDRESS_ARRAY2 0xF6800000
  31 #define MMU_UTLB_DATA_ARRAY     0xF7000000
  32 #define MMU_UTLB_DATA_ARRAY2    0xF7800000
  33 #define MMU_PAGE_ASSOC_BIT      0x80
  34
  35 #ifdef CONFIG_MMU
  36 #define MMUCR_AT                (1 << 0)
  37 #else
  38 #define MMUCR_AT                (0)
  39 #endif
  40
  41 #define MMUCR_TI                (1 << 2)
  42
  43 #define MMUCR_URB               0x00FC0000
  44 #define MMUCR_URB_SHIFT         18
  45 #define MMUCR_URB_NENTRIES      64
  46 #define MMUCR_URC               0x0000FC00
  47 #define MMUCR_URC_SHIFT         10
  48
  49 #if defined(CONFIG_32BIT) && defined(CONFIG_CPU_SUBTYPE_ST40)
  50 #define MMUCR_SE                (1 << 4)
  51 #else
  52 #define MMUCR_SE                (0)
  53 #endif
  54
  55 #ifdef CONFIG_CPU_HAS_PTEAEX
  56 #define MMUCR_AEX               (1 << 6)
  57 #else
  58 #define MMUCR_AEX               (0)
  59 #endif
  60
  61 #ifdef CONFIG_X2TLB
  62 #define MMUCR_ME                (1 << 7)
  63 #else
  64 #define MMUCR_ME                (0)
  65 #endif
  66
  67 #ifdef CONFIG_SH_STORE_QUEUES
  68 #define MMUCR_SQMD              (1 << 9)
  69 #else
  70 #define MMUCR_SQMD              (0)
  71 #endif
  72
  73 #define MMU_NTLB_ENTRIES        64
  74 #define MMU_CONTROL_INIT        (MMUCR_AT | MMUCR_TI | MMUCR_SQMD | \
  75                                  MMUCR_ME | MMUCR_SE | MMUCR_AEX)
  76
  77 #define TRA     0xff000020
  78 #define EXPEVT  0xff000024
  79 #define INTEVT  0xff000028
  80
  81 #endif /* __ASM_CPU_SH4_MMU_CONTEXT_H */
  82