arch/arm64/include/asm/esr.h

   1 /*
   2  * Copyright (C) 2013 - ARM Ltd
   3  * Author: Marc Zyngier <marc.zyngier@arm.com>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   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, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 #ifndef __ASM_ESR_H
  19 #define __ASM_ESR_H
  20
  21 #include <asm/memory.h>
  22 #include <asm/sysreg.h>
  23
  24 #define ESR_ELx_EC_UNKNOWN      (0x00)
  25 #define ESR_ELx_EC_WFx          (0x01)
  26 /* Unallocated EC: 0x02 */
  27 #define ESR_ELx_EC_CP15_32      (0x03)
  28 #define ESR_ELx_EC_CP15_64      (0x04)
  29 #define ESR_ELx_EC_CP14_MR      (0x05)
  30 #define ESR_ELx_EC_CP14_LS      (0x06)
  31 #define ESR_ELx_EC_FP_ASIMD     (0x07)
  32 #define ESR_ELx_EC_CP10_ID      (0x08)
  33 /* Unallocated EC: 0x09 - 0x0B */
  34 #define ESR_ELx_EC_CP14_64      (0x0C)
  35 /* Unallocated EC: 0x0d */
  36 #define ESR_ELx_EC_ILL          (0x0E)
  37 /* Unallocated EC: 0x0F - 0x10 */
  38 #define ESR_ELx_EC_SVC32        (0x11)
  39 #define ESR_ELx_EC_HVC32        (0x12)
  40 #define ESR_ELx_EC_SMC32        (0x13)
  41 /* Unallocated EC: 0x14 */
  42 #define ESR_ELx_EC_SVC64        (0x15)
  43 #define ESR_ELx_EC_HVC64        (0x16)
  44 #define ESR_ELx_EC_SMC64        (0x17)
  45 #define ESR_ELx_EC_SYS64        (0x18)
  46 /* Unallocated EC: 0x19 - 0x1E */
  47 #define ESR_ELx_EC_IMP_DEF      (0x1f)
  48 #define ESR_ELx_EC_IABT_LOW     (0x20)
  49 #define ESR_ELx_EC_IABT_CUR     (0x21)
  50 #define ESR_ELx_EC_PC_ALIGN     (0x22)
  51 /* Unallocated EC: 0x23 */
  52 #define ESR_ELx_EC_DABT_LOW     (0x24)
  53 #define ESR_ELx_EC_DABT_CUR     (0x25)
  54 #define ESR_ELx_EC_SP_ALIGN     (0x26)
  55 /* Unallocated EC: 0x27 */
  56 #define ESR_ELx_EC_FP_EXC32     (0x28)
  57 /* Unallocated EC: 0x29 - 0x2B */
  58 #define ESR_ELx_EC_FP_EXC64     (0x2C)
  59 /* Unallocated EC: 0x2D - 0x2E */
  60 #define ESR_ELx_EC_SERROR       (0x2F)
  61 #define ESR_ELx_EC_BREAKPT_LOW  (0x30)
  62 #define ESR_ELx_EC_BREAKPT_CUR  (0x31)
  63 #define ESR_ELx_EC_SOFTSTP_LOW  (0x32)
  64 #define ESR_ELx_EC_SOFTSTP_CUR  (0x33)
  65 #define ESR_ELx_EC_WATCHPT_LOW  (0x34)
  66 #define ESR_ELx_EC_WATCHPT_CUR  (0x35)
  67 /* Unallocated EC: 0x36 - 0x37 */
  68 #define ESR_ELx_EC_BKPT32       (0x38)
  69 /* Unallocated EC: 0x39 */
  70 #define ESR_ELx_EC_VECTOR32     (0x3A)
  71 /* Unallocted EC: 0x3B */
  72 #define ESR_ELx_EC_BRK64        (0x3C)
  73 /* Unallocated EC: 0x3D - 0x3F */
  74 #define ESR_ELx_EC_MAX          (0x3F)
  75
  76 #define ESR_ELx_EC_SHIFT        (26)
  77 #define ESR_ELx_EC_MASK         (UL(0x3F) << ESR_ELx_EC_SHIFT)
  78 #define ESR_ELx_EC(esr)         (((esr) & ESR_ELx_EC_MASK) >> ESR_ELx_EC_SHIFT)
  79
  80 #define ESR_ELx_IL              (UL(1) << 25)
  81 #define ESR_ELx_ISS_MASK        (ESR_ELx_IL - 1)
  82
  83 /* ISS field definitions shared by different classes */
  84 #define ESR_ELx_WNR             (UL(1) << 6)
  85
  86 /* Shared ISS field definitions for Data/Instruction aborts */
  87 #define ESR_ELx_FnV             (UL(1) << 10)
  88 #define ESR_ELx_EA              (UL(1) << 9)
  89 #define ESR_ELx_S1PTW           (UL(1) << 7)
  90
  91 /* Shared ISS fault status code(IFSC/DFSC) for Data/Instruction aborts */
  92 #define ESR_ELx_FSC             (0x3F)
  93 #define ESR_ELx_FSC_TYPE        (0x3C)
  94 #define ESR_ELx_FSC_EXTABT      (0x10)
  95 #define ESR_ELx_FSC_ACCESS      (0x08)
  96 #define ESR_ELx_FSC_FAULT       (0x04)
  97 #define ESR_ELx_FSC_PERM        (0x0C)
  98
  99 /* ISS field definitions for Data Aborts */
 100 #define ESR_ELx_ISV             (UL(1) << 24)
 101 #define ESR_ELx_SAS_SHIFT       (22)
 102 #define ESR_ELx_SAS             (UL(3) << ESR_ELx_SAS_SHIFT)
 103 #define ESR_ELx_SSE             (UL(1) << 21)
 104 #define ESR_ELx_SRT_SHIFT       (16)
 105 #define ESR_ELx_SRT_MASK        (UL(0x1F) << ESR_ELx_SRT_SHIFT)
 106 #define ESR_ELx_SF              (UL(1) << 15)
 107 #define ESR_ELx_AR              (UL(1) << 14)
 108 #define ESR_ELx_CM              (UL(1) << 8)
 109
 110 /* ISS field definitions for exceptions taken in to Hyp */
 111 #define ESR_ELx_CV              (UL(1) << 24)
 112 #define ESR_ELx_COND_SHIFT      (20)
 113 #define ESR_ELx_COND_MASK       (UL(0xF) << ESR_ELx_COND_SHIFT)
 114 #define ESR_ELx_WFx_ISS_WFE     (UL(1) << 0)
 115 #define ESR_ELx_xVC_IMM_MASK    ((1UL << 16) - 1)
 116
 117 /* ESR value templates for specific events */
 118
 119 /* BRK instruction trap from AArch64 state */
 120 #define ESR_ELx_VAL_BRK64(imm)                                  \
 121         ((ESR_ELx_EC_BRK64 << ESR_ELx_EC_SHIFT) | ESR_ELx_IL |  \
 122          ((imm) & 0xffff))
 123
 124 /* ISS field definitions for System instruction traps */
 125 #define ESR_ELx_SYS64_ISS_RES0_SHIFT    22
 126 #define ESR_ELx_SYS64_ISS_RES0_MASK     (UL(0x7) << ESR_ELx_SYS64_ISS_RES0_SHIFT)
 127 #define ESR_ELx_SYS64_ISS_DIR_MASK      0x1
 128 #define ESR_ELx_SYS64_ISS_DIR_READ      0x1
 129 #define ESR_ELx_SYS64_ISS_DIR_WRITE     0x0
 130
 131 #define ESR_ELx_SYS64_ISS_RT_SHIFT      5
 132 #define ESR_ELx_SYS64_ISS_RT_MASK       (UL(0x1f) << ESR_ELx_SYS64_ISS_RT_SHIFT)
 133 #define ESR_ELx_SYS64_ISS_CRM_SHIFT     1
 134 #define ESR_ELx_SYS64_ISS_CRM_MASK      (UL(0xf) << ESR_ELx_SYS64_ISS_CRM_SHIFT)
 135 #define ESR_ELx_SYS64_ISS_CRN_SHIFT     10
 136 #define ESR_ELx_SYS64_ISS_CRN_MASK      (UL(0xf) << ESR_ELx_SYS64_ISS_CRN_SHIFT)
 137 #define ESR_ELx_SYS64_ISS_OP1_SHIFT     14
 138 #define ESR_ELx_SYS64_ISS_OP1_MASK      (UL(0x7) << ESR_ELx_SYS64_ISS_OP1_SHIFT)
 139 #define ESR_ELx_SYS64_ISS_OP2_SHIFT     17
 140 #define ESR_ELx_SYS64_ISS_OP2_MASK      (UL(0x7) << ESR_ELx_SYS64_ISS_OP2_SHIFT)
 141 #define ESR_ELx_SYS64_ISS_OP0_SHIFT     20
 142 #define ESR_ELx_SYS64_ISS_OP0_MASK      (UL(0x3) << ESR_ELx_SYS64_ISS_OP0_SHIFT)
 143 #define ESR_ELx_SYS64_ISS_SYS_MASK      (ESR_ELx_SYS64_ISS_OP0_MASK | \
 144                                          ESR_ELx_SYS64_ISS_OP1_MASK | \
 145                                          ESR_ELx_SYS64_ISS_OP2_MASK | \
 146                                          ESR_ELx_SYS64_ISS_CRN_MASK | \
 147                                          ESR_ELx_SYS64_ISS_CRM_MASK)
 148 #define ESR_ELx_SYS64_ISS_SYS_VAL(op0, op1, op2, crn, crm) \
 149                                         (((op0) << ESR_ELx_SYS64_ISS_OP0_SHIFT) | \
 150                                          ((op1) << ESR_ELx_SYS64_ISS_OP1_SHIFT) | \
 151                                          ((op2) << ESR_ELx_SYS64_ISS_OP2_SHIFT) | \
 152                                          ((crn) << ESR_ELx_SYS64_ISS_CRN_SHIFT) | \
 153                                          ((crm) << ESR_ELx_SYS64_ISS_CRM_SHIFT))
 154
 155 #define ESR_ELx_SYS64_ISS_SYS_OP_MASK   (ESR_ELx_SYS64_ISS_SYS_MASK | \
 156                                          ESR_ELx_SYS64_ISS_DIR_MASK)
 157 /*
 158  * User space cache operations have the following sysreg encoding
 159  * in System instructions.
 160  * op0=1, op1=3, op2=1, crn=7, crm={ 5, 10, 11, 14 }, WRITE (L=0)
 161  */
 162 #define ESR_ELx_SYS64_ISS_CRM_DC_CIVAC  14
 163 #define ESR_ELx_SYS64_ISS_CRM_DC_CVAU   11
 164 #define ESR_ELx_SYS64_ISS_CRM_DC_CVAC   10
 165 #define ESR_ELx_SYS64_ISS_CRM_IC_IVAU   5
 166
 167 #define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_MASK     (ESR_ELx_SYS64_ISS_OP0_MASK | \
 168                                                  ESR_ELx_SYS64_ISS_OP1_MASK | \
 169                                                  ESR_ELx_SYS64_ISS_OP2_MASK | \
 170                                                  ESR_ELx_SYS64_ISS_CRN_MASK | \
 171                                                  ESR_ELx_SYS64_ISS_DIR_MASK)
 172 #define ESR_ELx_SYS64_ISS_EL0_CACHE_OP_VAL \
 173                                 (ESR_ELx_SYS64_ISS_SYS_VAL(1, 3, 1, 7, 0) | \
 174                                  ESR_ELx_SYS64_ISS_DIR_WRITE)
 175
 176 #define ESR_ELx_SYS64_ISS_SYS_CTR       ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 1, 0, 0)
 177 #define ESR_ELx_SYS64_ISS_SYS_CTR_READ  (ESR_ELx_SYS64_ISS_SYS_CTR | \
 178                                          ESR_ELx_SYS64_ISS_DIR_READ)
 179
 180 #define ESR_ELx_SYS64_ISS_SYS_CNTVCT    (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 2, 14, 0) | \
 181                                          ESR_ELx_SYS64_ISS_DIR_READ)
 182
 183 #define ESR_ELx_SYS64_ISS_SYS_CNTFRQ    (ESR_ELx_SYS64_ISS_SYS_VAL(3, 3, 0, 14, 0) | \
 184                                          ESR_ELx_SYS64_ISS_DIR_READ)
 185
 186 #define esr_sys64_to_sysreg(e)                                  \
 187         sys_reg((((e) & ESR_ELx_SYS64_ISS_OP0_MASK) >>          \
 188                  ESR_ELx_SYS64_ISS_OP0_SHIFT),                  \
 189                 (((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>          \
 190                  ESR_ELx_SYS64_ISS_OP1_SHIFT),                  \
 191                 (((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>          \
 192                  ESR_ELx_SYS64_ISS_CRN_SHIFT),                  \
 193                 (((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>          \
 194                  ESR_ELx_SYS64_ISS_CRM_SHIFT),                  \
 195                 (((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>          \
 196                  ESR_ELx_SYS64_ISS_OP2_SHIFT))
 197
 198 #define esr_cp15_to_sysreg(e)                                   \
 199         sys_reg(3,                                              \
 200                 (((e) & ESR_ELx_SYS64_ISS_OP1_MASK) >>          \
 201                  ESR_ELx_SYS64_ISS_OP1_SHIFT),                  \
 202                 (((e) & ESR_ELx_SYS64_ISS_CRN_MASK) >>          \
 203                  ESR_ELx_SYS64_ISS_CRN_SHIFT),                  \
 204                 (((e) & ESR_ELx_SYS64_ISS_CRM_MASK) >>          \
 205                  ESR_ELx_SYS64_ISS_CRM_SHIFT),                  \
 206                 (((e) & ESR_ELx_SYS64_ISS_OP2_MASK) >>          \
 207                  ESR_ELx_SYS64_ISS_OP2_SHIFT))
 208
 209 #ifndef __ASSEMBLY__
 210 #include <asm/types.h>
 211
 212 const char *esr_get_class_string(u32 esr);
 213 #endif /* __ASSEMBLY */
 214
 215 #endif /* __ASM_ESR_H */