| Arvind Ram Prakash | 721249b | 2024-08-05 16:11:42 -0500 | [diff] [blame] | 1 | /* |
| Govindraj Raja | 7455cd1 | 2025-01-29 15:01:10 -0600 | [diff] [blame] | 2 | * Copyright (c) 2024-2025, Arm Limited and Contributors. All rights reserved. |
| Arvind Ram Prakash | 721249b | 2024-08-05 16:11:42 -0500 | [diff] [blame] | 3 | * |
| 4 | * SPDX-License-Identifier: BSD-3-Clause |
| 5 | */ |
| 6 | |
| 7 | /* Runtime C routines for errata workarounds and common routines */ |
| 8 | |
| 9 | #include <arch.h> |
| 10 | #include <arch_helpers.h> |
| Govindraj Raja | 7455cd1 | 2025-01-29 15:01:10 -0600 | [diff] [blame] | 11 | #include <cortex_a75.h> |
| Arvind Ram Prakash | 721249b | 2024-08-05 16:11:42 -0500 | [diff] [blame] | 12 | #include <cortex_a520.h> |
| Govindraj Raja | 463b5b4 | 2025-01-21 12:32:14 -0600 | [diff] [blame] | 13 | #include <cortex_a710.h> |
| Govindraj Raja | 26437af | 2025-01-21 17:00:11 -0600 | [diff] [blame] | 14 | #include <cortex_a715.h> |
| Govindraj Raja | 050c4a3 | 2025-01-21 17:12:33 -0600 | [diff] [blame] | 15 | #include <cortex_a720.h> |
| Govindraj Raja | af5ae9a | 2025-01-21 17:23:26 -0600 | [diff] [blame^] | 16 | #include <cortex_a720_ae.h> |
| Arvind Ram Prakash | 721249b | 2024-08-05 16:11:42 -0500 | [diff] [blame] | 17 | #include <cortex_x4.h> |
| 18 | #include <lib/cpus/cpu_ops.h> |
| 19 | #include <lib/cpus/errata.h> |
| 20 | |
| 21 | #if ERRATA_A520_2938996 || ERRATA_X4_2726228 |
| 22 | unsigned int check_if_affected_core(void) |
| 23 | { |
| 24 | uint32_t midr_val = read_midr(); |
| 25 | long rev_var = cpu_get_rev_var(); |
| 26 | |
| 27 | if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { |
| 28 | return check_erratum_cortex_a520_2938996(rev_var); |
| 29 | } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { |
| 30 | return check_erratum_cortex_x4_2726228(rev_var); |
| 31 | } |
| 32 | |
| 33 | return ERRATA_NOT_APPLIES; |
| 34 | } |
| 35 | #endif |
| Sona Mathew | 7f152ea | 2024-07-10 18:04:40 -0500 | [diff] [blame] | 36 | |
| 37 | #if ERRATA_A75_764081 |
| 38 | bool errata_a75_764081_applies(void) |
| 39 | { |
| 40 | long rev_var = cpu_get_rev_var(); |
| 41 | if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { |
| 42 | return true; |
| 43 | } |
| 44 | return false; |
| 45 | } |
| 46 | #endif /* ERRATA_A75_764081 */ |
| Govindraj Raja | 7455cd1 | 2025-01-29 15:01:10 -0600 | [diff] [blame] | 47 | |
| 48 | bool errata_ich_vmcr_el2_applies(void) |
| 49 | { |
| 50 | switch (EXTRACT_PARTNUM(read_midr())) { |
| Govindraj Raja | 463b5b4 | 2025-01-21 12:32:14 -0600 | [diff] [blame] | 51 | #if ERRATA_A710_3701772 |
| 52 | case EXTRACT_PARTNUM(CORTEX_A710_MIDR): |
| 53 | if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES) |
| 54 | return true; |
| 55 | break; |
| 56 | #endif /* ERRATA_A710_3701772 */ |
| 57 | |
| Govindraj Raja | 26437af | 2025-01-21 17:00:11 -0600 | [diff] [blame] | 58 | #if ERRATA_A715_3699560 |
| 59 | case EXTRACT_PARTNUM(CORTEX_A715_MIDR): |
| 60 | if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES) |
| 61 | return true; |
| 62 | break; |
| 63 | #endif /* ERRATA_A715_3699560 */ |
| 64 | |
| Govindraj Raja | 050c4a3 | 2025-01-21 17:12:33 -0600 | [diff] [blame] | 65 | #if ERRATA_A720_3699561 |
| 66 | case EXTRACT_PARTNUM(CORTEX_A720_MIDR): |
| 67 | if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES) |
| 68 | return true;; |
| 69 | break; |
| 70 | #endif /* ERRATA_A720_3699561 */ |
| 71 | |
| Govindraj Raja | af5ae9a | 2025-01-21 17:23:26 -0600 | [diff] [blame^] | 72 | #if ERRATA_A720_AE_3699562 |
| 73 | case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR): |
| 74 | if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES) |
| 75 | return true; |
| 76 | break; |
| 77 | #endif /* ERRATA_A720_AE_3699562 */ |
| 78 | |
| Govindraj Raja | 7455cd1 | 2025-01-29 15:01:10 -0600 | [diff] [blame] | 79 | default: |
| 80 | break; |
| 81 | } |
| 82 | |
| 83 | return false; |
| 84 | } |