1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _SPARC64_CHAFSR_H 3 #define _SPARC64_CHAFSR_H 4 5 /* Cheetah Asynchronous Fault Status register, ASI=0x4C VA<63:0>=0x0 */ 6 7 /* Comments indicate which processor variants on which the bit definition 8 * is valid. Codes are: 9 * ch --> cheetah 10 * ch+ --> cheetah plus 11 * jp --> jalapeno 12 */ 13 14 /* All bits of this register except M_SYNDROME and E_SYNDROME are 15 * read, write 1 to clear. M_SYNDROME and E_SYNDROME are read-only. 16 */ 17 18 /* Software bit set by linux trap handlers to indicate that the trap was 19 * signalled at %tl >= 1. 20 */ 21 #define CHAFSR_TL1 (1UL << 63UL) /* n/a */ 22 23 /* Unmapped error from system bus for prefetch queue or 24 * store queue read operation 25 */ 26 #define CHPAFSR_DTO (1UL << 59UL) /* ch+ */ 27 28 /* Bus error from system bus for prefetch queue or store queue 29 * read operation 30 */ 31 #define CHPAFSR_DBERR (1UL << 58UL) /* ch+ */ 32 33 /* Hardware corrected E-cache Tag ECC error */ 34 #define CHPAFSR_THCE (1UL << 57UL) /* ch+ */ 35 /* System interface protocol error, hw timeout caused */ 36 #define JPAFSR_JETO (1UL << 57UL) /* jp */ 37 38 /* SW handled correctable E-cache Tag ECC error */ 39 #define CHPAFSR_TSCE (1UL << 56UL) /* ch+ */ 40 /* Parity error on system snoop results */ 41 #define JPAFSR_SCE (1UL << 56UL) /* jp */ 42 43 /* Uncorrectable E-cache Tag ECC error */ 44 #define CHPAFSR_TUE (1UL << 55UL) /* ch+ */ 45 /* System interface protocol error, illegal command detected */ 46 #define JPAFSR_JEIC (1UL << 55UL) /* jp */ 47 48 /* Uncorrectable system bus data ECC error due to prefetch 49 * or store fill request 50 */ 51 #define CHPAFSR_DUE (1UL << 54UL) /* ch+ */ 52 /* System interface protocol error, illegal ADTYPE detected */ 53 #define JPAFSR_JEIT (1UL << 54UL) /* jp */ 54 55 /* Multiple errors of the same type have occurred. This bit is set when 56 * an uncorrectable error or a SW correctable error occurs and the status 57 * bit to report that error is already set. When multiple errors of 58 * different types are indicated by setting multiple status bits. 59 * 60 * This bit is not set if multiple HW corrected errors with the same 61 * status bit occur, only uncorrectable and SW correctable ones have 62 * this behavior. 63 * 64 * This bit is not set when multiple ECC errors happen within a single 65 * 64-byte system bus transaction. Only the first ECC error in a 16-byte 66 * subunit will be logged. All errors in subsequent 16-byte subunits 67 * from the same 64-byte transaction are ignored. 68 */ 69 #define CHAFSR_ME (1UL << 53UL) /* ch,ch+,jp */ 70 71 /* Privileged state error has occurred. This is a capture of PSTATE.PRIV 72 * at the time the error is detected. 73 */ 74 #define CHAFSR_PRIV (1UL << 52UL) /* ch,ch+,jp */ 75 76 /* The following bits 51 (CHAFSR_PERR) to 33 (CHAFSR_CE) are sticky error 77 * bits and record the most recently detected errors. Bits accumulate 78 * errors that have been detected since the last write to clear the bit. 79 */ 80 81 /* System interface protocol error. The processor asserts its' ERROR 82 * pin when this event occurs and it also logs a specific cause code 83 * into a JTAG scannable flop. 84 */ 85 #define CHAFSR_PERR (1UL << 51UL) /* ch,ch+,jp */ 86 87 /* Internal processor error. The processor asserts its' ERROR 88 * pin when this event occurs and it also logs a specific cause code 89 * into a JTAG scannable flop. 90 */ 91 #define CHAFSR_IERR (1UL << 50UL) /* ch,ch+,jp */ 92 93 /* System request parity error on incoming address */ 94 #define CHAFSR_ISAP (1UL << 49UL) /* ch,ch+,jp */ 95 96 /* HW Corrected system bus MTAG ECC error */ 97 #define CHAFSR_EMC (1UL << 48UL) /* ch,ch+ */ 98 /* Parity error on L2 cache tag SRAM */ 99 #define JPAFSR_ETP (1UL << 48UL) /* jp */ 100 101 /* Uncorrectable system bus MTAG ECC error */ 102 #define CHAFSR_EMU (1UL << 47UL) /* ch,ch+ */ 103 /* Out of range memory error has occurred */ 104 #define JPAFSR_OM (1UL << 47UL) /* jp */ 105 106 /* HW Corrected system bus data ECC error for read of interrupt vector */ 107 #define CHAFSR_IVC (1UL << 46UL) /* ch,ch+ */ 108 /* Error due to unsupported store */ 109 #define JPAFSR_UMS (1UL << 46UL) /* jp */ 110 111 /* Uncorrectable system bus data ECC error for read of interrupt vector */ 112 #define CHAFSR_IVU (1UL << 45UL) /* ch,ch+,jp */ 113 114 /* Unmapped error from system bus */ 115 #define CHAFSR_TO (1UL << 44UL) /* ch,ch+,jp */ 116 117 /* Bus error response from system bus */ 118 #define CHAFSR_BERR (1UL << 43UL) /* ch,ch+,jp */ 119 120 /* SW Correctable E-cache ECC error for instruction fetch or data access 121 * other than block load. 122 */ 123 #define CHAFSR_UCC (1UL << 42UL) /* ch,ch+,jp */ 124 125 /* Uncorrectable E-cache ECC error for instruction fetch or data access 126 * other than block load. 127 */ 128 #define CHAFSR_UCU (1UL << 41UL) /* ch,ch+,jp */ 129 130 /* Copyout HW Corrected ECC error */ 131 #define CHAFSR_CPC (1UL << 40UL) /* ch,ch+,jp */ 132 133 /* Copyout Uncorrectable ECC error */ 134 #define CHAFSR_CPU (1UL << 39UL) /* ch,ch+,jp */ 135 136 /* HW Corrected ECC error from E-cache for writeback */ 137 #define CHAFSR_WDC (1UL << 38UL) /* ch,ch+,jp */ 138 139 /* Uncorrectable ECC error from E-cache for writeback */ 140 #define CHAFSR_WDU (1UL << 37UL) /* ch,ch+,jp */ 141 142 /* HW Corrected ECC error from E-cache for store merge or block load */ 143 #define CHAFSR_EDC (1UL << 36UL) /* ch,ch+,jp */ 144 145 /* Uncorrectable ECC error from E-cache for store merge or block load */ 146 #define CHAFSR_EDU (1UL << 35UL) /* ch,ch+,jp */ 147 148 /* Uncorrectable system bus data ECC error for read of memory or I/O */ 149 #define CHAFSR_UE (1UL << 34UL) /* ch,ch+,jp */ 150 151 /* HW Corrected system bus data ECC error for read of memory or I/O */ 152 #define CHAFSR_CE (1UL << 33UL) /* ch,ch+,jp */ 153 154 /* Uncorrectable ECC error from remote cache/memory */ 155 #define JPAFSR_RUE (1UL << 32UL) /* jp */ 156 157 /* Correctable ECC error from remote cache/memory */ 158 #define JPAFSR_RCE (1UL << 31UL) /* jp */ 159 160 /* JBUS parity error on returned read data */ 161 #define JPAFSR_BP (1UL << 30UL) /* jp */ 162 163 /* JBUS parity error on data for writeback or block store */ 164 #define JPAFSR_WBP (1UL << 29UL) /* jp */ 165 166 /* Foreign read to DRAM incurring correctable ECC error */ 167 #define JPAFSR_FRC (1UL << 28UL) /* jp */ 168 169 /* Foreign read to DRAM incurring uncorrectable ECC error */ 170 #define JPAFSR_FRU (1UL << 27UL) /* jp */ 171 172 #define CHAFSR_ERRORS (CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ 173 CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ 174 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ 175 CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ 176 CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) 177 #define CHPAFSR_ERRORS (CHPAFSR_DTO | CHPAFSR_DBERR | CHPAFSR_THCE | \ 178 CHPAFSR_TSCE | CHPAFSR_TUE | CHPAFSR_DUE | \ 179 CHAFSR_PERR | CHAFSR_IERR | CHAFSR_ISAP | CHAFSR_EMC | \ 180 CHAFSR_EMU | CHAFSR_IVC | CHAFSR_IVU | CHAFSR_TO | \ 181 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | CHAFSR_CPC | \ 182 CHAFSR_CPU | CHAFSR_WDC | CHAFSR_WDU | CHAFSR_EDC | \ 183 CHAFSR_EDU | CHAFSR_UE | CHAFSR_CE) 184 #define JPAFSR_ERRORS (JPAFSR_JETO | JPAFSR_SCE | JPAFSR_JEIC | \ 185 JPAFSR_JEIT | CHAFSR_PERR | CHAFSR_IERR | \ 186 CHAFSR_ISAP | JPAFSR_ETP | JPAFSR_OM | \ 187 JPAFSR_UMS | CHAFSR_IVU | CHAFSR_TO | \ 188 CHAFSR_BERR | CHAFSR_UCC | CHAFSR_UCU | \ 189 CHAFSR_CPC | CHAFSR_CPU | CHAFSR_WDC | \ 190 CHAFSR_WDU | CHAFSR_EDC | CHAFSR_EDU | \ 191 CHAFSR_UE | CHAFSR_CE | JPAFSR_RUE | \ 192 JPAFSR_RCE | JPAFSR_BP | JPAFSR_WBP | \ 193 JPAFSR_FRC | JPAFSR_FRU) 194 195 /* Active JBUS request signal when error occurred */ 196 #define JPAFSR_JBREQ (0x7UL << 24UL) /* jp */ 197 #define JPAFSR_JBREQ_SHIFT 24UL 198 199 /* L2 cache way information */ 200 #define JPAFSR_ETW (0x3UL << 22UL) /* jp */ 201 #define JPAFSR_ETW_SHIFT 22UL 202 203 /* System bus MTAG ECC syndrome. This field captures the status of the 204 * first occurrence of the highest-priority error according to the M_SYND 205 * overwrite policy. After the AFSR sticky bit, corresponding to the error 206 * for which the M_SYND is reported, is cleared, the contents of the M_SYND 207 * field will be unchanged by will be unfrozen for further error capture. 208 */ 209 #define CHAFSR_M_SYNDROME (0xfUL << 16UL) /* ch,ch+,jp */ 210 #define CHAFSR_M_SYNDROME_SHIFT 16UL 211 212 /* Agenid Id of the foreign device causing the UE/CE errors */ 213 #define JPAFSR_AID (0x1fUL << 9UL) /* jp */ 214 #define JPAFSR_AID_SHIFT 9UL 215 216 /* System bus or E-cache data ECC syndrome. This field captures the status 217 * of the first occurrence of the highest-priority error according to the 218 * E_SYND overwrite policy. After the AFSR sticky bit, corresponding to the 219 * error for which the E_SYND is reported, is cleare, the contents of the E_SYND 220 * field will be unchanged but will be unfrozen for further error capture. 221 */ 222 #define CHAFSR_E_SYNDROME (0x1ffUL << 0UL) /* ch,ch+,jp */ 223 #define CHAFSR_E_SYNDROME_SHIFT 0UL 224 225 /* The AFSR must be explicitly cleared by software, it is not cleared automatically 226 * by a read. Writes to bits <51:33> with bits set will clear the corresponding 227 * bits in the AFSR. Bits associated with disrupting traps must be cleared before 228 * interrupts are re-enabled to prevent multiple traps for the same error. I.e. 229 * PSTATE.IE and AFSR bits control delivery of disrupting traps. 230 * 231 * Since there is only one AFAR, when multiple events have been logged by the 232 * bits in the AFSR, at most one of these events will have its status captured 233 * in the AFAR. The highest priority of those event bits will get AFAR logging. 234 * The AFAR will be unlocked and available to capture the address of another event 235 * as soon as the one bit in AFSR that corresponds to the event logged in AFAR is 236 * cleared. For example, if AFSR.CE is detected, then AFSR.UE (which overwrites 237 * the AFAR), and AFSR.UE is cleared by not AFSR.CE, then the AFAR will be unlocked 238 * and ready for another event, even though AFSR.CE is still set. The same rules 239 * also apply to the M_SYNDROME and E_SYNDROME fields of the AFSR. 240 */ 241 242 #endif /* _SPARC64_CHAFSR_H */