johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 1 | /* |
Bipin Ravi | 2f73d97 | 2022-01-20 00:01:04 -0600 | [diff] [blame] | 2 | * Copyright (c) 2021-2022, Arm Limited. All rights reserved. |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [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> |
| 10 | #include <cortex_x2.h> |
| 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" |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 14 | |
| 15 | /* Hardware handled coherency */ |
| 16 | #if HW_ASSISTED_COHERENCY == 0 |
| 17 | #error "Cortex X2 must be compiled with HW_ASSISTED_COHERENCY enabled" |
| 18 | #endif |
| 19 | |
| 20 | /* 64-bit only core */ |
| 21 | #if CTX_INCLUDE_AARCH32_REGS == 1 |
| 22 | #error "Cortex X2 supports only AArch64. Compile with CTX_INCLUDE_AARCH32_REGS=0" |
| 23 | #endif |
| 24 | |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 25 | #if WORKAROUND_CVE_2022_23960 |
| 26 | wa_cve_2022_23960_bhb_vector_table CORTEX_X2_BHB_LOOP_COUNT, cortex_x2 |
| 27 | #endif /* WORKAROUND_CVE_2022_23960 */ |
| 28 | |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 29 | /* -------------------------------------------------- |
johpow01 | 0afef36 | 2021-12-02 13:25:50 -0600 | [diff] [blame] | 30 | * Errata Workaround for Cortex X2 Errata #2002765. |
| 31 | * This applies to revisions r0p0, r1p0, and r2p0 and |
| 32 | * is open. |
| 33 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 34 | * Shall clobber: x0, x1, x17 |
| 35 | * -------------------------------------------------- |
| 36 | */ |
| 37 | func errata_cortex_x2_2002765_wa |
| 38 | /* Check workaround compatibility. */ |
| 39 | mov x17, x30 |
| 40 | bl check_errata_2002765 |
| 41 | cbz x0, 1f |
| 42 | |
| 43 | ldr x0, =0x6 |
| 44 | msr S3_6_C15_C8_0, x0 /* CPUPSELR_EL3 */ |
| 45 | ldr x0, =0xF3A08002 |
| 46 | msr S3_6_C15_C8_2, x0 /* CPUPOR_EL3 */ |
| 47 | ldr x0, =0xFFF0F7FE |
| 48 | msr S3_6_C15_C8_3, x0 /* CPUPMR_EL3 */ |
| 49 | ldr x0, =0x40000001003ff |
| 50 | msr S3_6_C15_C8_1, x0 /* CPUPCR_EL3 */ |
| 51 | isb |
| 52 | |
| 53 | 1: |
| 54 | ret x17 |
| 55 | endfunc errata_cortex_x2_2002765_wa |
| 56 | |
| 57 | func check_errata_2002765 |
| 58 | /* Applies to r0p0 - r2p0 */ |
| 59 | mov x1, #0x20 |
| 60 | b cpu_rev_var_ls |
| 61 | endfunc check_errata_2002765 |
| 62 | |
| 63 | /* -------------------------------------------------- |
johpow01 | f6c37de | 2021-12-03 11:27:33 -0600 | [diff] [blame] | 64 | * Errata Workaround for Cortex X2 Errata #2058056. |
| 65 | * This applies to revisions r0p0, r1p0, and r2p0 and |
| 66 | * is open. |
| 67 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 68 | * Shall clobber: x0, x1, x17 |
| 69 | * -------------------------------------------------- |
| 70 | */ |
| 71 | func errata_cortex_x2_2058056_wa |
| 72 | /* Check workaround compatibility. */ |
| 73 | mov x17, x30 |
| 74 | bl check_errata_2058056 |
| 75 | cbz x0, 1f |
| 76 | |
| 77 | mrs x1, CORTEX_X2_CPUECTLR2_EL1 |
| 78 | mov x0, #CORTEX_X2_CPUECTLR2_EL1_PF_MODE_CNSRV |
| 79 | bfi x1, x0, #CORTEX_X2_CPUECTLR2_EL1_PF_MODE_SHIFT, #CORTEX_X2_CPUECTLR2_EL1_PF_MODE_WIDTH |
| 80 | msr CORTEX_X2_CPUECTLR2_EL1, x1 |
| 81 | |
| 82 | 1: |
| 83 | ret x17 |
| 84 | endfunc errata_cortex_x2_2058056_wa |
| 85 | |
| 86 | func check_errata_2058056 |
| 87 | /* Applies to r0p0 - r2p0 */ |
| 88 | mov x1, #0x20 |
| 89 | b cpu_rev_var_ls |
| 90 | endfunc check_errata_2058056 |
| 91 | |
| 92 | /* -------------------------------------------------- |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 93 | * Errata Workaround for Cortex X2 Errata #2083908. |
| 94 | * This applies to revision r2p0 and is open. |
| 95 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 96 | * Shall clobber: x0-x2, x17 |
| 97 | * -------------------------------------------------- |
| 98 | */ |
| 99 | func errata_cortex_x2_2083908_wa |
| 100 | /* Check workaround compatibility. */ |
| 101 | mov x17, x30 |
| 102 | bl check_errata_2083908 |
| 103 | cbz x0, 1f |
| 104 | |
| 105 | /* Apply the workaround by setting bit 13 in CPUACTLR5_EL1. */ |
| 106 | mrs x1, CORTEX_X2_CPUACTLR5_EL1 |
| 107 | orr x1, x1, #BIT(13) |
| 108 | msr CORTEX_X2_CPUACTLR5_EL1, x1 |
| 109 | |
| 110 | 1: |
| 111 | ret x17 |
| 112 | endfunc errata_cortex_x2_2083908_wa |
| 113 | |
| 114 | func check_errata_2083908 |
| 115 | /* Applies to r2p0 */ |
| 116 | mov x1, #0x20 |
| 117 | mov x2, #0x20 |
| 118 | b cpu_rev_var_range |
| 119 | endfunc check_errata_2083908 |
| 120 | |
Bipin Ravi | 2f73d97 | 2022-01-20 00:01:04 -0600 | [diff] [blame] | 121 | /* -------------------------------------------------- |
| 122 | * Errata Workaround for Cortex-X2 Errata 2017096. |
| 123 | * This applies only to revisions r0p0, r1p0 and r2p0 |
| 124 | * and is fixed in r2p1. |
| 125 | * Inputs: |
| 126 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 127 | * Shall clobber: x0, x1, x17 |
| 128 | * -------------------------------------------------- |
| 129 | */ |
| 130 | func errata_x2_2017096_wa |
| 131 | /* Compare x0 against revision r0p0 to r2p0 */ |
| 132 | mov x17, x30 |
| 133 | bl check_errata_2017096 |
| 134 | cbz x0, 1f |
| 135 | mrs x1, CORTEX_X2_CPUECTLR_EL1 |
| 136 | orr x1, x1, CORTEX_X2_CPUECTLR_EL1_PFSTIDIS_BIT |
| 137 | msr CORTEX_X2_CPUECTLR_EL1, x1 |
| 138 | |
| 139 | 1: |
| 140 | ret x17 |
| 141 | endfunc errata_x2_2017096_wa |
| 142 | |
| 143 | func check_errata_2017096 |
| 144 | /* Applies to r0p0, r1p0, r2p0 */ |
| 145 | mov x1, #0x20 |
| 146 | b cpu_rev_var_ls |
| 147 | endfunc check_errata_2017096 |
| 148 | |
Bipin Ravi | 9ad5478 | 2022-01-20 00:42:05 -0600 | [diff] [blame] | 149 | /* -------------------------------------------------- |
| 150 | * Errata Workaround for Cortex-X2 Errata 2081180. |
| 151 | * This applies to revision r0p0, r1p0 and r2p0 |
| 152 | * and is fixed in r2p1. |
| 153 | * Inputs: |
| 154 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 155 | * Shall clobber: x0, x1, x17 |
| 156 | * -------------------------------------------------- |
| 157 | */ |
| 158 | func errata_x2_2081180_wa |
| 159 | /* Check revision. */ |
| 160 | mov x17, x30 |
| 161 | bl check_errata_2081180 |
| 162 | cbz x0, 1f |
| 163 | |
| 164 | /* Apply instruction patching sequence */ |
| 165 | ldr x0, =0x3 |
| 166 | msr CORTEX_X2_IMP_CPUPSELR_EL3, x0 |
| 167 | ldr x0, =0xF3A08002 |
| 168 | msr CORTEX_X2_IMP_CPUPOR_EL3, x0 |
| 169 | ldr x0, =0xFFF0F7FE |
| 170 | msr CORTEX_X2_IMP_CPUPMR_EL3, x0 |
| 171 | ldr x0, =0x10002001003FF |
| 172 | msr CORTEX_X2_IMP_CPUPCR_EL3, x0 |
| 173 | ldr x0, =0x4 |
| 174 | msr CORTEX_X2_IMP_CPUPSELR_EL3, x0 |
| 175 | ldr x0, =0xBF200000 |
| 176 | msr CORTEX_X2_IMP_CPUPOR_EL3, x0 |
| 177 | ldr x0, =0xFFEF0000 |
| 178 | msr CORTEX_X2_IMP_CPUPMR_EL3, x0 |
| 179 | ldr x0, =0x10002001003F3 |
| 180 | msr CORTEX_X2_IMP_CPUPCR_EL3, x0 |
| 181 | isb |
| 182 | 1: |
| 183 | ret x17 |
| 184 | endfunc errata_x2_2081180_wa |
| 185 | |
| 186 | func check_errata_2081180 |
| 187 | /* Applies to r0p0, r1p0 and r2p0 */ |
| 188 | mov x1, #0x20 |
| 189 | b cpu_rev_var_ls |
| 190 | endfunc check_errata_2081180 |
| 191 | |
Bipin Ravi | 78b7208 | 2022-02-06 01:29:31 -0600 | [diff] [blame] | 192 | /* -------------------------------------------------- |
| 193 | * Errata Workaround for Cortex X2 Errata 2216384. |
| 194 | * This applies to revisions r0p0, r1p0, and r2p0 |
| 195 | * and is fixed in r2p1. |
| 196 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 197 | * Shall clobber: x0, x1, x17 |
| 198 | * -------------------------------------------------- |
| 199 | */ |
| 200 | func errata_x2_2216384_wa |
| 201 | /* Check workaround compatibility. */ |
| 202 | mov x17, x30 |
| 203 | bl check_errata_2216384 |
| 204 | cbz x0, 1f |
| 205 | |
| 206 | mrs x1, CORTEX_X2_CPUACTLR5_EL1 |
| 207 | orr x1, x1, CORTEX_X2_CPUACTLR5_EL1_BIT_17 |
| 208 | msr CORTEX_X2_CPUACTLR5_EL1, x1 |
| 209 | |
| 210 | /* Apply instruction patching sequence */ |
| 211 | ldr x0, =0x5 |
| 212 | msr CORTEX_X2_IMP_CPUPSELR_EL3, x0 |
| 213 | ldr x0, =0x10F600E000 |
| 214 | msr CORTEX_X2_IMP_CPUPOR_EL3, x0 |
| 215 | ldr x0, =0x10FF80E000 |
| 216 | msr CORTEX_X2_IMP_CPUPMR_EL3, x0 |
| 217 | ldr x0, =0x80000000003FF |
| 218 | msr CORTEX_X2_IMP_CPUPCR_EL3, x0 |
| 219 | isb |
| 220 | |
| 221 | 1: |
| 222 | ret x17 |
| 223 | endfunc errata_x2_2216384_wa |
| 224 | |
| 225 | func check_errata_2216384 |
| 226 | /* Applies to r0p0 - r2p0 */ |
| 227 | mov x1, #0x20 |
| 228 | b cpu_rev_var_ls |
| 229 | endfunc check_errata_2216384 |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 230 | |
| 231 | func check_errata_cve_2022_23960 |
| 232 | #if WORKAROUND_CVE_2022_23960 |
| 233 | mov x0, #ERRATA_APPLIES |
| 234 | #else |
| 235 | mov x0, #ERRATA_MISSING |
| 236 | #endif |
| 237 | ret |
| 238 | endfunc check_errata_cve_2022_23960 |
| 239 | |
Bipin Ravi | c6b6521 | 2022-03-08 10:37:43 -0600 | [diff] [blame] | 240 | /* --------------------------------------------------------- |
| 241 | * Errata Workaround for Cortex-X2 Errata 2147715. |
| 242 | * This applies only to revisions r2p0 and is fixed in r2p1. |
| 243 | * Inputs: |
| 244 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 245 | * Shall clobber: x0, x1, x17 |
| 246 | * --------------------------------------------------------- |
| 247 | */ |
| 248 | func errata_x2_2147715_wa |
| 249 | /* Compare x0 against revision r2p0 */ |
| 250 | mov x17, x30 |
| 251 | bl check_errata_2147715 |
| 252 | cbz x0, 1f |
| 253 | |
| 254 | /* Apply the workaround by setting bit 22 in CPUACTLR_EL1. */ |
| 255 | mrs x1, CORTEX_X2_CPUACTLR_EL1 |
| 256 | orr x1, x1, CORTEX_X2_CPUACTLR_EL1_BIT_22 |
| 257 | msr CORTEX_X2_CPUACTLR_EL1, x1 |
| 258 | |
| 259 | 1: |
| 260 | ret x17 |
| 261 | endfunc errata_x2_2147715_wa |
| 262 | |
| 263 | func check_errata_2147715 |
| 264 | /* Applies to r2p0 */ |
| 265 | mov x1, #0x20 |
| 266 | mov x2, #0x20 |
| 267 | b cpu_rev_var_range |
| 268 | endfunc check_errata_2147715 |
| 269 | |
Bipin Ravi | 4e315c3 | 2022-07-12 17:13:01 -0500 | [diff] [blame] | 270 | /* ------------------------------------------------------- |
| 271 | * Errata Workaround for Cortex-X2 Erratum 2371105. |
| 272 | * This applies to revisions <= r2p0 and is fixed in r2p1. |
| 273 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 274 | * Shall clobber: x0-x17 |
| 275 | * ------------------------------------------------------- |
| 276 | */ |
| 277 | func errata_x2_2371105_wa |
| 278 | /* Check workaround compatibility. */ |
| 279 | mov x17, x30 |
| 280 | bl check_errata_2371105 |
| 281 | cbz x0, 1f |
| 282 | |
| 283 | /* Set bit 40 in CPUACTLR2_EL1 */ |
| 284 | mrs x1, CORTEX_X2_CPUACTLR2_EL1 |
| 285 | orr x1, x1, #CORTEX_X2_CPUACTLR2_EL1_BIT_40 |
| 286 | msr CORTEX_X2_CPUACTLR2_EL1, x1 |
| 287 | isb |
| 288 | 1: |
| 289 | ret x17 |
| 290 | endfunc errata_x2_2371105_wa |
| 291 | |
| 292 | func check_errata_2371105 |
| 293 | /* Applies to <= r2p0. */ |
| 294 | mov x1, #0x20 |
| 295 | b cpu_rev_var_ls |
| 296 | endfunc check_errata_2371105 |
| 297 | |
Bipin Ravi | 86839eb | 2022-12-07 13:54:02 -0600 | [diff] [blame] | 298 | /* ---------------------------------------------------- |
| 299 | * Errata Workaround for Cortex-X2 Errata #2768515 |
| 300 | * This applies to revisions <= r2p1 and is still open. |
| 301 | * x0: variant[4:7] and revision[0:3] of current cpu. |
| 302 | * Shall clobber: x0-x17 |
| 303 | * ---------------------------------------------------- |
| 304 | */ |
| 305 | func errata_x2_2768515_wa |
| 306 | mov x17, x30 |
| 307 | bl check_errata_2768515 |
| 308 | cbz x0, 1f |
| 309 | |
| 310 | /* dsb before isb of power down sequence */ |
| 311 | dsb sy |
| 312 | 1: |
| 313 | ret x17 |
| 314 | endfunc errata_x2_2768515_wa |
| 315 | |
| 316 | func check_errata_2768515 |
| 317 | /* Applies to all revisions <= r2p1 */ |
| 318 | mov x1, #0x21 |
| 319 | b cpu_rev_var_ls |
| 320 | endfunc check_errata_2768515 |
| 321 | |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 322 | /* ---------------------------------------------------- |
| 323 | * HW will do the cache maintenance while powering down |
| 324 | * ---------------------------------------------------- |
| 325 | */ |
| 326 | func cortex_x2_core_pwr_dwn |
| 327 | /* --------------------------------------------------- |
| 328 | * Enable CPU power down bit in power control register |
| 329 | * --------------------------------------------------- |
| 330 | */ |
| 331 | mrs x0, CORTEX_X2_CPUPWRCTLR_EL1 |
| 332 | orr x0, x0, #CORTEX_X2_CPUPWRCTLR_EL1_CORE_PWRDN_BIT |
| 333 | msr CORTEX_X2_CPUPWRCTLR_EL1, x0 |
Bipin Ravi | 86839eb | 2022-12-07 13:54:02 -0600 | [diff] [blame] | 334 | #if ERRATA_X2_2768515 |
| 335 | mov x15, x30 |
| 336 | bl cpu_get_rev_var |
| 337 | bl errata_x2_2768515_wa |
| 338 | mov x30, x15 |
| 339 | #endif /* ERRATA_X2_2768515 */ |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 340 | isb |
| 341 | ret |
| 342 | endfunc cortex_x2_core_pwr_dwn |
| 343 | |
| 344 | /* |
| 345 | * Errata printing function for Cortex X2. Must follow AAPCS. |
| 346 | */ |
| 347 | #if REPORT_ERRATA |
| 348 | func cortex_x2_errata_report |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 349 | stp x8, x30, [sp, #-16]! |
| 350 | |
| 351 | bl cpu_get_rev_var |
| 352 | mov x8, x0 |
| 353 | |
| 354 | /* |
| 355 | * Report all errata. The revision-variant information is passed to |
| 356 | * checking functions of each errata. |
| 357 | */ |
johpow01 | 0afef36 | 2021-12-02 13:25:50 -0600 | [diff] [blame] | 358 | report_errata ERRATA_X2_2002765, cortex_x2, 2002765 |
Bipin Ravi | 2f73d97 | 2022-01-20 00:01:04 -0600 | [diff] [blame] | 359 | report_errata ERRATA_X2_2017096, cortex_x2, 2017096 |
Bipin Ravi | c6b6521 | 2022-03-08 10:37:43 -0600 | [diff] [blame] | 360 | report_errata ERRATA_X2_2058056, cortex_x2, 2058056 |
Bipin Ravi | 9ad5478 | 2022-01-20 00:42:05 -0600 | [diff] [blame] | 361 | report_errata ERRATA_X2_2081180, cortex_x2, 2081180 |
Bipin Ravi | c6b6521 | 2022-03-08 10:37:43 -0600 | [diff] [blame] | 362 | report_errata ERRATA_X2_2083908, cortex_x2, 2083908 |
| 363 | report_errata ERRATA_X2_2147715, cortex_x2, 2147715 |
Bipin Ravi | 78b7208 | 2022-02-06 01:29:31 -0600 | [diff] [blame] | 364 | report_errata ERRATA_X2_2216384, cortex_x2, 2216384 |
Bipin Ravi | 4e315c3 | 2022-07-12 17:13:01 -0500 | [diff] [blame] | 365 | report_errata ERRATA_X2_2371105, cortex_x2, 2371105 |
Bipin Ravi | 86839eb | 2022-12-07 13:54:02 -0600 | [diff] [blame] | 366 | report_errata ERRATA_X2_2768515, cortex_x2, 2768515 |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 367 | report_errata WORKAROUND_CVE_2022_23960, cortex_x2, cve_2022_23960 |
Bipin Ravi | af40d69 | 2021-12-22 14:35:21 -0600 | [diff] [blame] | 368 | report_errata ERRATA_DSU_2313941, cortex_x2, dsu_2313941 |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 369 | |
| 370 | ldp x8, x30, [sp], #16 |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 371 | ret |
| 372 | endfunc cortex_x2_errata_report |
| 373 | #endif |
| 374 | |
| 375 | func cortex_x2_reset_func |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 376 | mov x19, x30 |
| 377 | |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 378 | /* Disable speculative loads */ |
| 379 | msr SSBS, xzr |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 380 | |
| 381 | /* Get the CPU revision and stash it in x18. */ |
| 382 | bl cpu_get_rev_var |
| 383 | mov x18, x0 |
| 384 | |
Bipin Ravi | af40d69 | 2021-12-22 14:35:21 -0600 | [diff] [blame] | 385 | #if ERRATA_DSU_2313941 |
| 386 | bl errata_dsu_2313941_wa |
| 387 | #endif |
| 388 | |
johpow01 | 0afef36 | 2021-12-02 13:25:50 -0600 | [diff] [blame] | 389 | #if ERRATA_X2_2002765 |
| 390 | mov x0, x18 |
| 391 | bl errata_cortex_x2_2002765_wa |
| 392 | #endif |
| 393 | |
johpow01 | f6c37de | 2021-12-03 11:27:33 -0600 | [diff] [blame] | 394 | #if ERRATA_X2_2058056 |
| 395 | mov x0, x18 |
| 396 | bl errata_cortex_x2_2058056_wa |
| 397 | #endif |
| 398 | |
johpow01 | 15f10bd | 2021-12-01 17:40:39 -0600 | [diff] [blame] | 399 | #if ERRATA_X2_2083908 |
| 400 | mov x0, x18 |
| 401 | bl errata_cortex_x2_2083908_wa |
| 402 | #endif |
| 403 | |
Bipin Ravi | 2f73d97 | 2022-01-20 00:01:04 -0600 | [diff] [blame] | 404 | #if ERRATA_X2_2017096 |
| 405 | mov x0, x18 |
| 406 | bl errata_x2_2017096_wa |
| 407 | #endif |
| 408 | |
Bipin Ravi | 9ad5478 | 2022-01-20 00:42:05 -0600 | [diff] [blame] | 409 | #if ERRATA_X2_2081180 |
| 410 | mov x0, x18 |
| 411 | bl errata_x2_2081180_wa |
| 412 | #endif |
| 413 | |
Bipin Ravi | 78b7208 | 2022-02-06 01:29:31 -0600 | [diff] [blame] | 414 | #if ERRATA_X2_2216384 |
| 415 | mov x0, x18 |
| 416 | bl errata_x2_2216384_wa |
| 417 | #endif |
| 418 | |
Bipin Ravi | c6b6521 | 2022-03-08 10:37:43 -0600 | [diff] [blame] | 419 | #if ERRATA_X2_2147715 |
| 420 | mov x0, x18 |
| 421 | bl errata_x2_2147715_wa |
| 422 | #endif |
| 423 | |
Bipin Ravi | 4e315c3 | 2022-07-12 17:13:01 -0500 | [diff] [blame] | 424 | #if ERRATA_X2_2371105 |
| 425 | mov x0, x18 |
| 426 | bl errata_x2_2371105_wa |
| 427 | #endif |
| 428 | |
Bipin Ravi | 8649974 | 2022-01-18 01:59:06 -0600 | [diff] [blame] | 429 | #if IMAGE_BL31 && WORKAROUND_CVE_2022_23960 |
| 430 | /* |
| 431 | * The Cortex-X2 generic vectors are overridden to apply errata |
| 432 | * mitigation on exception entry from lower ELs. |
| 433 | */ |
| 434 | adr x0, wa_cve_vbar_cortex_x2 |
| 435 | msr vbar_el3, x0 |
| 436 | #endif /* IMAGE_BL31 && WORKAROUND_CVE_2022_23960 */ |
| 437 | |
| 438 | isb |
Bipin Ravi | af40d69 | 2021-12-22 14:35:21 -0600 | [diff] [blame] | 439 | ret x19 |
johpow01 | a3810e8 | 2021-05-18 15:23:31 -0500 | [diff] [blame] | 440 | endfunc cortex_x2_reset_func |
| 441 | |
| 442 | /* --------------------------------------------- |
| 443 | * This function provides Cortex X2 specific |
| 444 | * register information for crash reporting. |
| 445 | * It needs to return with x6 pointing to |
| 446 | * a list of register names in ascii and |
| 447 | * x8 - x15 having values of registers to be |
| 448 | * reported. |
| 449 | * --------------------------------------------- |
| 450 | */ |
| 451 | .section .rodata.cortex_x2_regs, "aS" |
| 452 | cortex_x2_regs: /* The ascii list of register names to be reported */ |
| 453 | .asciz "cpuectlr_el1", "" |
| 454 | |
| 455 | func cortex_x2_cpu_reg_dump |
| 456 | adr x6, cortex_x2_regs |
| 457 | mrs x8, CORTEX_X2_CPUECTLR_EL1 |
| 458 | ret |
| 459 | endfunc cortex_x2_cpu_reg_dump |
| 460 | |
| 461 | declare_cpu_ops cortex_x2, CORTEX_X2_MIDR, \ |
| 462 | cortex_x2_reset_func, \ |
| 463 | cortex_x2_core_pwr_dwn |