Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 1 | /* |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 2 | * Copyright (c) 2019-2022, ARM Limited. All rights reserved. |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | #include <arch.h> |
| 8 | #include <asm_macros.S> |
| 9 | #include <common/bl_common.h> |
Jimmy Brisson | 7ec175e | 2020-06-01 16:49:34 -0500 | [diff] [blame] | 10 | #include <cortex_a78.h> |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 11 | #include <cpu_macros.S> |
| 12 | #include <plat_macros.S> |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 13 | #include "wa_cve_2022_23960_bhb_vector.S" |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 14 | |
| 15 | /* Hardware handled coherency */ |
| 16 | #if HW_ASSISTED_COHERENCY == 0 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 17 | #error "cortex_a78 must be compiled with HW_ASSISTED_COHERENCY enabled" |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 18 | #endif |
| 19 | |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 20 | #if WORKAROUND_CVE_2022_23960 |
| 21 | wa_cve_2022_23960_bhb_vector_table CORTEX_A78_BHB_LOOP_COUNT, cortex_a78 |
| 22 | #endif /* WORKAROUND_CVE_2022_23960 */ |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 23 | |
| 24 | /* -------------------------------------------------- |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 25 | * Errata Workaround for A78 Erratum 1688305. |
| 26 | * This applies to revision r0p0 and r1p0 of A78. |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 27 | * Inputs: |
| 28 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 29 | * Shall clobber: x0-x17 |
| 30 | * -------------------------------------------------- |
| 31 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 32 | func errata_a78_1688305_wa |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 33 | /* Compare x0 against revision r1p0 */ |
| 34 | mov x17, x30 |
| 35 | bl check_errata_1688305 |
| 36 | cbz x0, 1f |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 37 | mrs x1, CORTEX_A78_ACTLR2_EL1 |
johpow01 | 9131eb8 | 2020-10-06 17:55:25 -0500 | [diff] [blame] | 38 | orr x1, x1, #CORTEX_A78_ACTLR2_EL1_BIT_1 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 39 | msr CORTEX_A78_ACTLR2_EL1, x1 |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 40 | isb |
| 41 | 1: |
| 42 | ret x17 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 43 | endfunc errata_a78_1688305_wa |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 44 | |
| 45 | func check_errata_1688305 |
| 46 | /* Applies to r0p0 and r1p0 */ |
| 47 | mov x1, #0x10 |
| 48 | b cpu_rev_var_ls |
| 49 | endfunc check_errata_1688305 |
| 50 | |
johpow01 | b3e8294 | 2021-04-30 18:08:52 -0500 | [diff] [blame] | 51 | /* -------------------------------------------------- |
| 52 | * Errata Workaround for Cortex A78 Errata #1941498. |
| 53 | * This applies to revisions r0p0, r1p0, and r1p1. |
| 54 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 55 | * Shall clobber: x0-x17 |
| 56 | * -------------------------------------------------- |
| 57 | */ |
johpow01 | 9131eb8 | 2020-10-06 17:55:25 -0500 | [diff] [blame] | 58 | func errata_a78_1941498_wa |
| 59 | /* Compare x0 against revision <= r1p1 */ |
| 60 | mov x17, x30 |
| 61 | bl check_errata_1941498 |
| 62 | cbz x0, 1f |
| 63 | |
| 64 | /* Set bit 8 in ECTLR_EL1 */ |
| 65 | mrs x1, CORTEX_A78_CPUECTLR_EL1 |
| 66 | orr x1, x1, #CORTEX_A78_CPUECTLR_EL1_BIT_8 |
| 67 | msr CORTEX_A78_CPUECTLR_EL1, x1 |
| 68 | isb |
| 69 | 1: |
| 70 | ret x17 |
| 71 | endfunc errata_a78_1941498_wa |
| 72 | |
| 73 | func check_errata_1941498 |
| 74 | /* Check for revision <= r1p1, might need to be updated later. */ |
| 75 | mov x1, #0x11 |
| 76 | b cpu_rev_var_ls |
| 77 | endfunc check_errata_1941498 |
| 78 | |
johpow01 | b3e8294 | 2021-04-30 18:08:52 -0500 | [diff] [blame] | 79 | /* -------------------------------------------------- |
| 80 | * Errata Workaround for A78 Erratum 1951500. |
| 81 | * This applies to revisions r1p0 and r1p1 of A78. |
| 82 | * The issue also exists in r0p0 but there is no fix |
| 83 | * in that revision. |
| 84 | * Inputs: |
| 85 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 86 | * Shall clobber: x0-x17 |
| 87 | * -------------------------------------------------- |
| 88 | */ |
johpow01 | 85ea43d | 2020-10-07 15:08:01 -0500 | [diff] [blame] | 89 | func errata_a78_1951500_wa |
| 90 | /* Compare x0 against revisions r1p0 - r1p1 */ |
| 91 | mov x17, x30 |
| 92 | bl check_errata_1951500 |
| 93 | cbz x0, 1f |
| 94 | |
| 95 | msr S3_6_c15_c8_0, xzr |
| 96 | ldr x0, =0x10E3900002 |
| 97 | msr S3_6_c15_c8_2, x0 |
| 98 | ldr x0, =0x10FFF00083 |
| 99 | msr S3_6_c15_c8_3, x0 |
| 100 | ldr x0, =0x2001003FF |
| 101 | msr S3_6_c15_c8_1, x0 |
| 102 | |
| 103 | mov x0, #1 |
| 104 | msr S3_6_c15_c8_0, x0 |
| 105 | ldr x0, =0x10E3800082 |
| 106 | msr S3_6_c15_c8_2, x0 |
| 107 | ldr x0, =0x10FFF00083 |
| 108 | msr S3_6_c15_c8_3, x0 |
| 109 | ldr x0, =0x2001003FF |
| 110 | msr S3_6_c15_c8_1, x0 |
| 111 | |
| 112 | mov x0, #2 |
| 113 | msr S3_6_c15_c8_0, x0 |
| 114 | ldr x0, =0x10E3800200 |
| 115 | msr S3_6_c15_c8_2, x0 |
| 116 | ldr x0, =0x10FFF003E0 |
| 117 | msr S3_6_c15_c8_3, x0 |
| 118 | ldr x0, =0x2001003FF |
| 119 | msr S3_6_c15_c8_1, x0 |
| 120 | |
| 121 | isb |
| 122 | 1: |
| 123 | ret x17 |
| 124 | endfunc errata_a78_1951500_wa |
| 125 | |
| 126 | func check_errata_1951500 |
| 127 | /* Applies to revisions r1p0 and r1p1. */ |
| 128 | mov x1, #CPU_REV(1, 0) |
| 129 | mov x2, #CPU_REV(1, 1) |
| 130 | b cpu_rev_var_range |
| 131 | endfunc check_errata_1951500 |
| 132 | |
johpow01 | b3e8294 | 2021-04-30 18:08:52 -0500 | [diff] [blame] | 133 | /* -------------------------------------------------- |
| 134 | * Errata Workaround for Cortex A78 Errata #1821534. |
| 135 | * This applies to revisions r0p0 and r1p0. |
| 136 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 137 | * Shall clobber: x0-x17 |
| 138 | * -------------------------------------------------- |
| 139 | */ |
| 140 | func errata_a78_1821534_wa |
| 141 | /* Check revision. */ |
| 142 | mov x17, x30 |
| 143 | bl check_errata_1821534 |
| 144 | cbz x0, 1f |
| 145 | |
| 146 | /* Set bit 2 in ACTLR2_EL1 */ |
| 147 | mrs x1, CORTEX_A78_ACTLR2_EL1 |
| 148 | orr x1, x1, #CORTEX_A78_ACTLR2_EL1_BIT_2 |
| 149 | msr CORTEX_A78_ACTLR2_EL1, x1 |
| 150 | isb |
| 151 | 1: |
| 152 | ret x17 |
| 153 | endfunc errata_a78_1821534_wa |
| 154 | |
| 155 | func check_errata_1821534 |
| 156 | /* Applies to r0p0 and r1p0 */ |
| 157 | mov x1, #0x10 |
| 158 | b cpu_rev_var_ls |
| 159 | endfunc check_errata_1821534 |
| 160 | |
nayanpatel-arm | 80bf7a5 | 2021-08-11 13:33:00 -0700 | [diff] [blame] | 161 | /* -------------------------------------------------- |
| 162 | * Errata Workaround for Cortex A78 Errata 1952683. |
| 163 | * This applies to revision r0p0. |
| 164 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 165 | * Shall clobber: x0-x17 |
| 166 | * -------------------------------------------------- |
| 167 | */ |
| 168 | func errata_a78_1952683_wa |
| 169 | /* Check revision. */ |
| 170 | mov x17, x30 |
| 171 | bl check_errata_1952683 |
| 172 | cbz x0, 1f |
| 173 | |
| 174 | ldr x0,=0x5 |
| 175 | msr S3_6_c15_c8_0,x0 |
| 176 | ldr x0,=0xEEE10A10 |
| 177 | msr S3_6_c15_c8_2,x0 |
| 178 | ldr x0,=0xFFEF0FFF |
| 179 | msr S3_6_c15_c8_3,x0 |
| 180 | ldr x0,=0x0010F000 |
| 181 | msr S3_6_c15_c8_4,x0 |
| 182 | ldr x0,=0x0010F000 |
| 183 | msr S3_6_c15_c8_5,x0 |
| 184 | ldr x0,=0x40000080023ff |
| 185 | msr S3_6_c15_c8_1,x0 |
| 186 | ldr x0,=0x6 |
| 187 | msr S3_6_c15_c8_0,x0 |
| 188 | ldr x0,=0xEE640F34 |
| 189 | msr S3_6_c15_c8_2,x0 |
| 190 | ldr x0,=0xFFEF0FFF |
| 191 | msr S3_6_c15_c8_3,x0 |
| 192 | ldr x0,=0x40000080023ff |
| 193 | msr S3_6_c15_c8_1,x0 |
| 194 | isb |
| 195 | 1: |
| 196 | ret x17 |
| 197 | endfunc errata_a78_1952683_wa |
| 198 | |
| 199 | func check_errata_1952683 |
| 200 | /* Applies to r0p0 only */ |
| 201 | mov x1, #0x00 |
| 202 | b cpu_rev_var_ls |
| 203 | endfunc check_errata_1952683 |
| 204 | |
nayanpatel-arm | 39e0865 | 2021-09-28 17:31:50 -0700 | [diff] [blame] | 205 | /* -------------------------------------------------- |
| 206 | * Errata Workaround for Cortex A78 Errata 2132060. |
| 207 | * This applies to revisions r0p0, r1p0, r1p1, and r1p2. |
| 208 | * It is still open. |
| 209 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 210 | * Shall clobber: x0-x1, x17 |
| 211 | * -------------------------------------------------- |
| 212 | */ |
| 213 | func errata_a78_2132060_wa |
| 214 | /* Check revision. */ |
| 215 | mov x17, x30 |
| 216 | bl check_errata_2132060 |
| 217 | cbz x0, 1f |
| 218 | |
| 219 | /* Apply the workaround. */ |
| 220 | mrs x1, CORTEX_A78_CPUECTLR_EL1 |
| 221 | mov x0, #CORTEX_A78_CPUECTLR_EL1_PF_MODE_CNSRV |
| 222 | bfi x1, x0, #CPUECTLR_EL1_PF_MODE_LSB, #CPUECTLR_EL1_PF_MODE_WIDTH |
| 223 | msr CORTEX_A78_CPUECTLR_EL1, x1 |
| 224 | 1: |
| 225 | ret x17 |
| 226 | endfunc errata_a78_2132060_wa |
| 227 | |
| 228 | func check_errata_2132060 |
| 229 | /* Applies to r0p0, r0p1, r1p1, and r1p2 */ |
| 230 | mov x1, #0x12 |
| 231 | b cpu_rev_var_ls |
| 232 | endfunc check_errata_2132060 |
| 233 | |
johpow01 | 45c1724 | 2021-09-02 17:53:30 -0500 | [diff] [blame] | 234 | /* -------------------------------------------------------------------- |
| 235 | * Errata Workaround for A78 Erratum 2242635. |
| 236 | * This applies to revisions r1p0, r1p1, and r1p2 of the Cortex A78 |
| 237 | * processor and is still open. |
| 238 | * The issue also exists in r0p0 but there is no fix in that revision. |
| 239 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 240 | * Shall clobber: x0-x17 |
| 241 | * -------------------------------------------------------------------- |
| 242 | */ |
| 243 | func errata_a78_2242635_wa |
| 244 | /* Compare x0 against revisions r1p0 - r1p2 */ |
| 245 | mov x17, x30 |
| 246 | bl check_errata_2242635 |
| 247 | cbz x0, 1f |
| 248 | |
| 249 | ldr x0, =0x5 |
| 250 | msr S3_6_c15_c8_0, x0 /* CPUPSELR_EL3 */ |
| 251 | ldr x0, =0x10F600E000 |
| 252 | msr S3_6_c15_c8_2, x0 /* CPUPOR_EL3 */ |
| 253 | ldr x0, =0x10FF80E000 |
| 254 | msr S3_6_c15_c8_3, x0 /* CPUPMR_EL3 */ |
| 255 | ldr x0, =0x80000000003FF |
| 256 | msr S3_6_c15_c8_1, x0 /* CPUPCR_EL3 */ |
| 257 | |
| 258 | isb |
| 259 | 1: |
| 260 | ret x17 |
| 261 | endfunc errata_a78_2242635_wa |
| 262 | |
| 263 | func check_errata_2242635 |
| 264 | /* Applies to revisions r1p0 through r1p2. */ |
| 265 | mov x1, #CPU_REV(1, 0) |
| 266 | mov x2, #CPU_REV(1, 2) |
| 267 | b cpu_rev_var_range |
| 268 | endfunc check_errata_2242635 |
| 269 | |
John Powell | 12bc0de | 2022-05-03 15:22:57 -0500 | [diff] [blame] | 270 | /* -------------------------------------------------- |
| 271 | * Errata Workaround for Cortex A78 Errata 2376745. |
| 272 | * This applies to revisions r0p0, r1p0, r1p1, and r1p2. |
| 273 | * It is still open. |
| 274 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 275 | * Shall clobber: x0-x1, x17 |
| 276 | * -------------------------------------------------- |
| 277 | */ |
| 278 | func errata_a78_2376745_wa |
| 279 | /* Check revision. */ |
| 280 | mov x17, x30 |
| 281 | bl check_errata_2376745 |
| 282 | cbz x0, 1f |
| 283 | |
| 284 | /* Apply the workaround. */ |
| 285 | mrs x1, CORTEX_A78_ACTLR2_EL1 |
| 286 | orr x1, x1, #BIT(0) |
| 287 | msr CORTEX_A78_ACTLR2_EL1, x1 |
| 288 | 1: |
| 289 | ret x17 |
| 290 | endfunc errata_a78_2376745_wa |
| 291 | |
| 292 | func check_errata_2376745 |
| 293 | /* Applies to r0p0, r0p1, r1p1, and r1p2 */ |
| 294 | mov x1, #CPU_REV(1, 2) |
| 295 | b cpu_rev_var_ls |
| 296 | endfunc check_errata_2376745 |
| 297 | |
John Powell | a93b7e5 | 2022-05-03 15:52:11 -0500 | [diff] [blame] | 298 | /* -------------------------------------------------- |
| 299 | * Errata Workaround for Cortex A78 Errata 2395406. |
| 300 | * This applies to revisions r0p0, r1p0, r1p1, and r1p2. |
| 301 | * It is still open. |
| 302 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 303 | * Shall clobber: x0-x1, x17 |
| 304 | * -------------------------------------------------- |
| 305 | */ |
| 306 | func errata_a78_2395406_wa |
| 307 | /* Check revision. */ |
| 308 | mov x17, x30 |
| 309 | bl check_errata_2395406 |
| 310 | cbz x0, 1f |
| 311 | |
| 312 | /* Apply the workaround. */ |
| 313 | mrs x1, CORTEX_A78_ACTLR2_EL1 |
| 314 | orr x1, x1, #BIT(40) |
| 315 | msr CORTEX_A78_ACTLR2_EL1, x1 |
| 316 | 1: |
| 317 | ret x17 |
| 318 | endfunc errata_a78_2395406_wa |
| 319 | |
| 320 | func check_errata_2395406 |
| 321 | /* Applies to r0p0, r0p1, r1p1, and r1p2 */ |
| 322 | mov x1, #CPU_REV(1, 2) |
| 323 | b cpu_rev_var_ls |
| 324 | endfunc check_errata_2395406 |
| 325 | |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 326 | func check_errata_cve_2022_23960 |
| 327 | #if WORKAROUND_CVE_2022_23960 |
| 328 | mov x0, #ERRATA_APPLIES |
| 329 | #else |
| 330 | mov x0, #ERRATA_MISSING |
| 331 | #endif |
| 332 | ret |
| 333 | endfunc check_errata_cve_2022_23960 |
| 334 | |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 335 | /* ------------------------------------------------- |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 336 | * The CPU Ops reset function for Cortex-A78 |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 337 | * ------------------------------------------------- |
| 338 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 339 | func cortex_a78_reset_func |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 340 | mov x19, x30 |
| 341 | bl cpu_get_rev_var |
| 342 | mov x18, x0 |
| 343 | |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 344 | #if ERRATA_A78_1688305 |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 345 | mov x0, x18 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 346 | bl errata_a78_1688305_wa |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 347 | #endif |
| 348 | |
johpow01 | 9131eb8 | 2020-10-06 17:55:25 -0500 | [diff] [blame] | 349 | #if ERRATA_A78_1941498 |
| 350 | mov x0, x18 |
| 351 | bl errata_a78_1941498_wa |
| 352 | #endif |
| 353 | |
johpow01 | 85ea43d | 2020-10-07 15:08:01 -0500 | [diff] [blame] | 354 | #if ERRATA_A78_1951500 |
| 355 | mov x0, x18 |
| 356 | bl errata_a78_1951500_wa |
| 357 | #endif |
| 358 | |
johpow01 | b3e8294 | 2021-04-30 18:08:52 -0500 | [diff] [blame] | 359 | #if ERRATA_A78_1821534 |
| 360 | mov x0, x18 |
| 361 | bl errata_a78_1821534_wa |
| 362 | #endif |
| 363 | |
nayanpatel-arm | 80bf7a5 | 2021-08-11 13:33:00 -0700 | [diff] [blame] | 364 | #if ERRATA_A78_1952683 |
| 365 | mov x0, x18 |
| 366 | bl errata_a78_1952683_wa |
| 367 | #endif |
| 368 | |
nayanpatel-arm | 39e0865 | 2021-09-28 17:31:50 -0700 | [diff] [blame] | 369 | #if ERRATA_A78_2132060 |
| 370 | mov x0, x18 |
| 371 | bl errata_a78_2132060_wa |
| 372 | #endif |
| 373 | |
johpow01 | 45c1724 | 2021-09-02 17:53:30 -0500 | [diff] [blame] | 374 | #if ERRATA_A78_2242635 |
| 375 | mov x0, x18 |
| 376 | bl errata_a78_2242635_wa |
| 377 | #endif |
| 378 | |
John Powell | 12bc0de | 2022-05-03 15:22:57 -0500 | [diff] [blame] | 379 | #if ERRATA_A78_2376745 |
| 380 | mov x0, x18 |
| 381 | bl errata_a78_2376745_wa |
| 382 | #endif |
| 383 | |
John Powell | a93b7e5 | 2022-05-03 15:52:11 -0500 | [diff] [blame] | 384 | #if ERRATA_A78_2395406 |
| 385 | mov x0, x18 |
| 386 | bl errata_a78_2395406_wa |
| 387 | #endif |
| 388 | |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 389 | #if ENABLE_AMU |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 390 | /* Make sure accesses from EL0/EL1 and EL2 are not trapped to EL3 */ |
| 391 | mrs x0, actlr_el3 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 392 | bic x0, x0, #CORTEX_A78_ACTLR_TAM_BIT |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 393 | msr actlr_el3, x0 |
| 394 | |
| 395 | /* Make sure accesses from non-secure EL0/EL1 are not trapped to EL2 */ |
| 396 | mrs x0, actlr_el2 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 397 | bic x0, x0, #CORTEX_A78_ACTLR_TAM_BIT |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 398 | msr actlr_el2, x0 |
| 399 | |
| 400 | /* Enable group0 counters */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 401 | mov x0, #CORTEX_A78_AMU_GROUP0_MASK |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 402 | msr CPUAMCNTENSET0_EL0, x0 |
| 403 | |
| 404 | /* Enable group1 counters */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 405 | mov x0, #CORTEX_A78_AMU_GROUP1_MASK |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 406 | msr CPUAMCNTENSET1_EL0, x0 |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 407 | #endif |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 408 | |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 409 | #if IMAGE_BL31 && WORKAROUND_CVE_2022_23960 |
| 410 | /* |
| 411 | * The Cortex-A78 generic vectors are overridden to apply errata |
| 412 | * mitigation on exception entry from lower ELs. |
| 413 | */ |
| 414 | adr x0, wa_cve_vbar_cortex_a78 |
| 415 | msr vbar_el3, x0 |
| 416 | #endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */ |
| 417 | |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 418 | isb |
| 419 | ret x19 |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 420 | endfunc cortex_a78_reset_func |
Balint Dobszay | db2ec85 | 2019-07-15 11:46:20 +0200 | [diff] [blame] | 421 | |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 422 | /* --------------------------------------------- |
| 423 | * HW will do the cache maintenance while powering down |
| 424 | * --------------------------------------------- |
| 425 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 426 | func cortex_a78_core_pwr_dwn |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 427 | /* --------------------------------------------- |
| 428 | * Enable CPU power down bit in power control register |
| 429 | * --------------------------------------------- |
| 430 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 431 | mrs x0, CORTEX_A78_CPUPWRCTLR_EL1 |
| 432 | orr x0, x0, #CORTEX_A78_CPUPWRCTLR_EL1_CORE_PWRDN_EN_BIT |
| 433 | msr CORTEX_A78_CPUPWRCTLR_EL1, x0 |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 434 | isb |
| 435 | ret |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 436 | endfunc cortex_a78_core_pwr_dwn |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 437 | |
| 438 | /* |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 439 | * Errata printing function for cortex_a78. Must follow AAPCS. |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 440 | */ |
| 441 | #if REPORT_ERRATA |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 442 | func cortex_a78_errata_report |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 443 | stp x8, x30, [sp, #-16]! |
| 444 | |
| 445 | bl cpu_get_rev_var |
| 446 | mov x8, x0 |
| 447 | |
| 448 | /* |
| 449 | * Report all errata. The revision-variant information is passed to |
| 450 | * checking functions of each errata. |
| 451 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 452 | report_errata ERRATA_A78_1688305, cortex_a78, 1688305 |
johpow01 | 9131eb8 | 2020-10-06 17:55:25 -0500 | [diff] [blame] | 453 | report_errata ERRATA_A78_1941498, cortex_a78, 1941498 |
johpow01 | 85ea43d | 2020-10-07 15:08:01 -0500 | [diff] [blame] | 454 | report_errata ERRATA_A78_1951500, cortex_a78, 1951500 |
johpow01 | b3e8294 | 2021-04-30 18:08:52 -0500 | [diff] [blame] | 455 | report_errata ERRATA_A78_1821534, cortex_a78, 1821534 |
nayanpatel-arm | 80bf7a5 | 2021-08-11 13:33:00 -0700 | [diff] [blame] | 456 | report_errata ERRATA_A78_1952683, cortex_a78, 1952683 |
nayanpatel-arm | 39e0865 | 2021-09-28 17:31:50 -0700 | [diff] [blame] | 457 | report_errata ERRATA_A78_2132060, cortex_a78, 2132060 |
johpow01 | 45c1724 | 2021-09-02 17:53:30 -0500 | [diff] [blame] | 458 | report_errata ERRATA_A78_2242635, cortex_a78, 2242635 |
John Powell | 12bc0de | 2022-05-03 15:22:57 -0500 | [diff] [blame] | 459 | report_errata ERRATA_A78_2376745, cortex_a78, 2376745 |
John Powell | a93b7e5 | 2022-05-03 15:52:11 -0500 | [diff] [blame] | 460 | report_errata ERRATA_A78_2395406, cortex_a78, 2395406 |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 461 | report_errata WORKAROUND_CVE_2022_23960, cortex_a78, cve_2022_23960 |
Madhukar Pappireddy | 4efede7 | 2019-12-18 15:56:27 -0600 | [diff] [blame] | 462 | |
| 463 | ldp x8, x30, [sp], #16 |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 464 | ret |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 465 | endfunc cortex_a78_errata_report |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 466 | #endif |
| 467 | |
| 468 | /* --------------------------------------------- |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 469 | * This function provides cortex_a78 specific |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 470 | * register information for crash reporting. |
| 471 | * It needs to return with x6 pointing to |
| 472 | * a list of register names in ascii and |
| 473 | * x8 - x15 having values of registers to be |
| 474 | * reported. |
| 475 | * --------------------------------------------- |
| 476 | */ |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 477 | .section .rodata.cortex_a78_regs, "aS" |
| 478 | cortex_a78_regs: /* The ascii list of register names to be reported */ |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 479 | .asciz "cpuectlr_el1", "" |
| 480 | |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 481 | func cortex_a78_cpu_reg_dump |
| 482 | adr x6, cortex_a78_regs |
| 483 | mrs x8, CORTEX_A78_CPUECTLR_EL1 |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 484 | ret |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 485 | endfunc cortex_a78_cpu_reg_dump |
Louis Mayencourt | f57f108 | 2019-05-14 11:00:45 +0100 | [diff] [blame] | 486 | |
Jimmy Brisson | 3571fb9 | 2020-06-01 10:18:22 -0500 | [diff] [blame] | 487 | declare_cpu_ops cortex_a78, CORTEX_A78_MIDR, \ |
| 488 | cortex_a78_reset_func, \ |
| 489 | cortex_a78_core_pwr_dwn |