sim/bfin/dv-bfin_mmu.h

   1 /* Blackfin Memory Management Unit (MMU) model.
   2
   3    Copyright (C) 2010-2024 Free Software Foundation, Inc.
   4    Contributed by Analog Devices, Inc.
   5
   6    This file is part of simulators.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef DV_BFIN_MMU_H
  22 #define DV_BFIN_MMU_H
  23
  24 #undef PAGE_SIZE        /* Cleanup system headers.  */
  25
  26 void mmu_check_addr (SIM_CPU *, bu32 addr, bool write, bool inst, int size);
  27 void mmu_check_cache_addr (SIM_CPU *, bu32 addr, bool write, bool inst);
  28 void mmu_process_fault (SIM_CPU *, bu32 addr, bool write, bool inst, bool unaligned, bool miss);
  29 void mmu_log_ifault (SIM_CPU *);
  30
  31 /* MEM_CONTROL */
  32 #define ENM    (1 << 0)
  33 #define ENCPLB (1 << 1)
  34 #define MC     (1 << 2)
  35
  36 #define ENDM         ENM
  37 #define ENDCPLB      ENCPLB
  38 #define DMC_AB_SRAM      0x0
  39 #define DMC_AB_CACHE     0xc
  40 #define DMC_ACACHE_BSRAM 0x8
  41
  42 /* CPLB_DATA */
  43 #define CPLB_VALID   (1 << 0)
  44 #define CPLB_USER_RD (1 << 2)
  45 #define CPLB_USER_WR (1 << 3)
  46 #define CPLB_USER_RW (CPLB_USER_RD | CPLB_USER_WR)
  47 #define CPLB_SUPV_WR (1 << 4)
  48 #define CPLB_L1SRAM  (1 << 5)
  49 #define CPLB_DA0ACC  (1 << 6)
  50 #define CPLB_DIRTY   (1 << 7)
  51 #define CPLB_L1_CHBL (1 << 12)
  52 #define CPLB_WT      (1 << 14)
  53 #define PAGE_SIZE    (3 << 16)
  54 #define PAGE_SIZE_1K (0 << 16)
  55 #define PAGE_SIZE_4K (1 << 16)
  56 #define PAGE_SIZE_1M (2 << 16)
  57 #define PAGE_SIZE_4M (3 << 16)
  58
  59 /* CPLB_STATUS */
  60 #define FAULT_CPLB0   (1 << 0)
  61 #define FAULT_CPLB1   (1 << 1)
  62 #define FAULT_CPLB2   (1 << 2)
  63 #define FAULT_CPLB3   (1 << 3)
  64 #define FAULT_CPLB4   (1 << 4)
  65 #define FAULT_CPLB5   (1 << 5)
  66 #define FAULT_CPLB6   (1 << 6)
  67 #define FAULT_CPLB7   (1 << 7)
  68 #define FAULT_CPLB8   (1 << 8)
  69 #define FAULT_CPLB9   (1 << 9)
  70 #define FAULT_CPLB10  (1 << 10)
  71 #define FAULT_CPLB11  (1 << 11)
  72 #define FAULT_CPLB12  (1 << 12)
  73 #define FAULT_CPLB13  (1 << 13)
  74 #define FAULT_CPLB14  (1 << 14)
  75 #define FAULT_CPLB15  (1 << 15)
  76 #define FAULT_READ    (0 << 16)
  77 #define FAULT_WRITE   (1 << 16)
  78 #define FAULT_USER    (0 << 17)
  79 #define FAULT_SUPV    (1 << 17)
  80 #define FAULT_DAG0    (0 << 18)
  81 #define FAULT_DAG1    (1 << 18)
  82 #define FAULT_ILLADDR (1 << 19)
  83
  84 /* DTEST_COMMAND */
  85 #define TEST_READ       (0 << 1)
  86 #define TEST_WRITE      (1 << 1)
  87 #define TEST_TAG_ARRAY  (0 << 2)
  88 #define TEST_DATA_ARRAY (1 << 2)
  89 #define TEST_DBANK      (1 << 23)
  90 #define TEST_DATA_SRAM  (0 << 24)
  91 #define TEST_INST_SRAM  (1 << 24)
  92
  93 #endif