src/target/armv8.h

   1 /***************************************************************************
   2  *   Copyright (C) 2015 by David Ung                                       *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  ***************************************************************************/
  18
  19 #ifndef OPENOCD_TARGET_ARMV8_H
  20 #define OPENOCD_TARGET_ARMV8_H
  21
  22 #include "arm_adi_v5.h"
  23 #include "arm.h"
  24 #include "armv4_5_mmu.h"
  25 #include "armv4_5_cache.h"
  26 #include "armv8_dpm.h"
  27
  28 enum {
  29         ARMV8_R0,
  30         ARMV8_R1,
  31         ARMV8_R2,
  32         ARMV8_R3,
  33         ARMV8_R4,
  34         ARMV8_R5,
  35         ARMV8_R6,
  36         ARMV8_R7,
  37         ARMV8_R8,
  38         ARMV8_R9,
  39         ARMV8_R10,
  40         ARMV8_R11,
  41         ARMV8_R12,
  42         ARMV8_R13,
  43         ARMV8_R14,
  44         ARMV8_R15,
  45         ARMV8_R16,
  46         ARMV8_R17,
  47         ARMV8_R18,
  48         ARMV8_R19,
  49         ARMV8_R20,
  50         ARMV8_R21,
  51         ARMV8_R22,
  52         ARMV8_R23,
  53         ARMV8_R24,
  54         ARMV8_R25,
  55         ARMV8_R26,
  56         ARMV8_R27,
  57         ARMV8_R28,
  58         ARMV8_R29,
  59         ARMV8_R30,
  60         ARMV8_R31,
  61
  62         ARMV8_PC = 32,
  63         ARMV8_xPSR = 33,
  64
  65         ARMV8_LAST_REG,
  66 };
  67
  68
  69 #define ARMV8_COMMON_MAGIC 0x0A450AAA
  70
  71 /* VA to PA translation operations opc2 values*/
  72 #define V2PCWPR  0
  73 #define V2PCWPW  1
  74 #define V2PCWUR  2
  75 #define V2PCWUW  3
  76 #define V2POWPR  4
  77 #define V2POWPW  5
  78 #define V2POWUR  6
  79 #define V2POWUW  7
  80 /*   L210/L220 cache controller support */
  81 struct armv8_l2x_cache {
  82         uint32_t base;
  83         uint32_t way;
  84 };
  85
  86 struct armv8_cachesize {
  87         uint32_t level_num;
  88         /*  cache dimensionning */
  89         uint32_t linelen;
  90         uint32_t associativity;
  91         uint32_t nsets;
  92         uint32_t cachesize;
  93         /* info for set way operation on cache */
  94         uint32_t index;
  95         uint32_t index_shift;
  96         uint32_t way;
  97         uint32_t way_shift;
  98 };
  99
 100 struct armv8_cache_common {
 101         int ctype;
 102         struct armv8_cachesize d_u_size;        /* data cache */
 103         struct armv8_cachesize i_size;          /* instruction cache */
 104         int i_cache_enabled;
 105         int d_u_cache_enabled;
 106         /* l2 external unified cache if some */
 107         void *l2_cache;
 108         int (*flush_all_data_cache)(struct target *target);
 109         int (*display_cache_info)(struct command_context *cmd_ctx,
 110                         struct armv8_cache_common *armv8_cache);
 111 };
 112
 113 struct armv8_mmu_common {
 114         /* following field mmu working way */
 115         int32_t ttbr1_used; /*  -1 not initialized, 0 no ttbr1 1 ttbr1 used and  */
 116         uint64_t ttbr0_mask;/*  masked to be used  */
 117         uint32_t os_border;
 118
 119         int (*read_physical_memory)(struct target *target, target_addr_t address,
 120                         uint32_t size, uint32_t count, uint8_t *buffer);
 121         struct armv8_cache_common armv8_cache;
 122         uint32_t mmu_enabled;
 123 };
 124
 125 struct armv8_common {
 126         struct arm arm;
 127         int common_magic;
 128         struct reg_cache *core_cache;
 129
 130         /* Core Debug Unit */
 131         struct arm_dpm dpm;
 132         uint32_t debug_base;
 133         uint32_t cti_base;
 134         struct adiv5_ap *debug_ap;
 135
 136         /* mdir */
 137         uint8_t multi_processor_system;
 138         uint8_t cluster_id;
 139         uint8_t cpu_id;
 140
 141         /* armv8 aarch64 need below information for page translation */
 142         uint8_t va_size;
 143         uint8_t pa_size;
 144         uint32_t page_size;
 145         uint64_t ttbr_base;
 146
 147         /* cache specific to V7 Memory Management Unit compatible with v4_5*/
 148         struct armv8_mmu_common armv8_mmu;
 149
 150         /* Direct processor core register read and writes */
 151         int (*load_core_reg_u64)(struct target *target, uint32_t num, uint64_t *value);
 152         int (*store_core_reg_u64)(struct target *target, uint32_t num, uint64_t value);
 153
 154         int (*examine_debug_reason)(struct target *target);
 155         int (*post_debug_entry)(struct target *target);
 156
 157         void (*pre_restore_context)(struct target *target);
 158 };
 159
 160 static inline struct armv8_common *
 161 target_to_armv8(struct target *target)
 162 {
 163         return container_of(target->arch_info, struct armv8_common, arm);
 164 }
 165
 166 /* register offsets from armv8.debug_base */
 167 #define CPUV8_DBG_MAINID0               0xD00
 168 #define CPUV8_DBG_CPUFEATURE0   0xD20
 169 #define CPUV8_DBG_DBGFEATURE0   0xD28
 170 #define CPUV8_DBG_MEMFEATURE0   0xD38
 171
 172 #define CPUV8_DBG_LOCKACCESS 0xFB0
 173 #define CPUV8_DBG_LOCKSTATUS 0xFB4
 174
 175 #define CPUV8_DBG_EDESR         0x20
 176 #define CPUV8_DBG_EDECR         0x24
 177 #define CPUV8_DBG_WFAR0         0x30
 178 #define CPUV8_DBG_WFAR1         0x34
 179 #define CPUV8_DBG_DSCR          0x088
 180 #define CPUV8_DBG_DRCR          0x090
 181 #define CPUV8_DBG_PRCR          0x310
 182 #define CPUV8_DBG_PRSR          0x314
 183
 184 #define CPUV8_DBG_DTRRX         0x080
 185 #define CPUV8_DBG_ITR           0x084
 186 #define CPUV8_DBG_SCR           0x088
 187 #define CPUV8_DBG_DTRTX         0x08c
 188
 189 #define CPUV8_DBG_BVR_BASE      0x400
 190 #define CPUV8_DBG_BCR_BASE      0x408
 191 #define CPUV8_DBG_WVR_BASE      0x800
 192 #define CPUV8_DBG_WCR_BASE      0x808
 193 #define CPUV8_DBG_VCR           0x01C
 194
 195 #define CPUV8_DBG_OSLAR         0x300
 196
 197 #define CPUV8_DBG_AUTHSTATUS    0xFB8
 198
 199 /*define CTI(cross trigger interface)*/
 200 #define CTI_CTR                         0x0
 201 #define CTI_INACK                       0x10
 202 #define CTI_APPSET                      0x14
 203 #define CTI_APPCLEAR            0x18
 204 #define CTI_APPPULSE            0x1C
 205 #define CTI_INEN0                       0x20
 206 #define CTI_INEN1                       0x24
 207 #define CTI_INEN2                       0x28
 208 #define CTI_INEN3                       0x2C
 209 #define CTI_INEN4                       0x30
 210 #define CTI_INEN5                       0x34
 211 #define CTI_INEN6                       0x38
 212 #define CTI_INEN7                       0x3C
 213 #define CTI_OUTEN0                      0xA0
 214 #define CTI_OUTEN1                      0xA4
 215 #define CTI_OUTEN2                      0xA8
 216 #define CTI_OUTEN3                      0xAC
 217 #define CTI_OUTEN4                      0xB0
 218 #define CTI_OUTEN5                      0xB4
 219 #define CTI_OUTEN6                      0xB8
 220 #define CTI_OUTEN7                      0xBC
 221 #define CTI_TRIN_STATUS         0x130
 222 #define CTI_TROUT_STATUS        0x134
 223 #define CTI_CHIN_STATUS         0x138
 224 #define CTI_CHOU_STATUS         0x13C
 225 #define CTI_GATE                        0x140
 226 #define CTI_UNLOCK                      0xFB0
 227
 228 #define CTI_CHNL(x)                     (1 << x)
 229 #define CTI_TRIG_HALT           0
 230 #define CTI_TRIG_RESUME         1
 231 #define CTI_TRIG(n)                     (1 << CTI_TRIG_##n)
 232
 233 #define PAGE_SIZE_4KB                           0x1000
 234 #define PAGE_SIZE_4KB_LEVEL0_BITS       39
 235 #define PAGE_SIZE_4KB_LEVEL1_BITS       30
 236 #define PAGE_SIZE_4KB_LEVEL2_BITS       21
 237 #define PAGE_SIZE_4KB_LEVEL3_BITS       12
 238
 239 #define PAGE_SIZE_4KB_LEVEL0_MASK       ((0x1FFULL) << PAGE_SIZE_4KB_LEVEL0_BITS)
 240 #define PAGE_SIZE_4KB_LEVEL1_MASK       ((0x1FFULL) << PAGE_SIZE_4KB_LEVEL1_BITS)
 241 #define PAGE_SIZE_4KB_LEVEL2_MASK       ((0x1FFULL) << PAGE_SIZE_4KB_LEVEL2_BITS)
 242 #define PAGE_SIZE_4KB_LEVEL3_MASK       ((0x1FFULL) << PAGE_SIZE_4KB_LEVEL3_BITS)
 243
 244 #define PAGE_SIZE_4KB_TRBBASE_MASK      0xFFFFFFFFF000
 245
 246 int armv8_arch_state(struct target *target);
 247 int armv8_identify_cache(struct target *target);
 248 int armv8_init_arch_info(struct target *target, struct armv8_common *armv8);
 249 int armv8_mmu_translate_va_pa(struct target *target, target_addr_t va,
 250                 target_addr_t *val, int meminfo);
 251 int armv8_mmu_translate_va(struct target *target,  target_addr_t va, target_addr_t *val);
 252
 253 int armv8_handle_cache_info_command(struct command_context *cmd_ctx,
 254                 struct armv8_cache_common *armv8_cache);
 255
 256 void armv8_set_cpsr(struct arm *arm, uint32_t cpsr);
 257
 258 extern const struct command_registration armv8_command_handlers[];
 259
 260 #endif