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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / e2a5da1c0bf6f1e1b9294438432efe3461354814 / . / lib / cpus / errata_common.c
blob: 17df7f6053acbf5f14c4937e43736892a5c4da6b [file] [log] [blame]
Arvind Ram Prakashc4c6eae2024-08-05 16:11:42 -0500[diff] [blame]1/*
Govindraj Raja57bdc572025-02-04 16:04:27 +0100[diff] [blame]2 * Copyright (c) 2024-2025, Arm Limited and Contributors. All rights reserved.
Arvind Ram Prakashc4c6eae2024-08-05 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>
Sona Mathew33a04462024-07-10 18:04:40 -0500[diff] [blame]11#include <cortex_a75.h>
Govindraj Raja57bdc572025-02-04 16:04:27 +0100[diff] [blame]12#include <cortex_a520.h>
Govindraj Raja8f709372025-01-21 12:32:14 -0600[diff] [blame]13#include <cortex_a710.h>
Govindraj Raja857cfc22025-01-21 17:00:11 -0600[diff] [blame]14#include <cortex_a715.h>
Govindraj Raja36b53f92025-01-21 17:12:33 -0600[diff] [blame]15#include <cortex_a720.h>
Govindraj Raja17b8a8a2025-02-04 16:20:35 +0100[diff] [blame]16#include <cortex_a725.h>
Govindraj Raja3e9433d2025-01-21 18:02:51 -0600[diff] [blame]17#include <cortex_x2.h>
Govindraj Raja1852f602025-01-21 18:12:35 -0600[diff] [blame]18#include <cortex_x3.h>
Arvind Ram Prakashc4c6eae2024-08-05 16:11:42 -0500[diff] [blame]19#include <cortex_x4.h>
Govindraj Rajac8a6cc02025-01-21 18:38:56 -0600[diff] [blame]20#include <cortex_x925.h>
Arvind Ram Prakashc4c6eae2024-08-05 16:11:42 -0500[diff] [blame]21#include <lib/cpus/cpu_ops.h>
22#include <lib/cpus/errata.h>
Govindraj Raja1d175782025-01-21 18:56:25 -0600[diff] [blame]23#include <neoverse_n2.h>
Govindraj Rajae2a5da12025-01-21 19:03:34 -0600[diff] [blame^]24#include <neoverse_n3.h>
Arvind Ram Prakashc4c6eae2024-08-05 16:11:42 -0500[diff] [blame]25
26#if ERRATA_A520_2938996 || ERRATA_X4_2726228
27unsigned int check_if_affected_core(void)
28{
29 uint32_t midr_val = read_midr();
30 long rev_var = cpu_get_rev_var();
31
32 if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) {
33 return check_erratum_cortex_a520_2938996(rev_var);
34 } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) {
35 return check_erratum_cortex_x4_2726228(rev_var);
36 }
37
38 return ERRATA_NOT_APPLIES;
39}
40#endif
Sona Mathew33a04462024-07-10 18:04:40 -0500[diff] [blame]41
42#if ERRATA_A75_764081
43bool errata_a75_764081_applies(void)
44{
45 long rev_var = cpu_get_rev_var();
46
47 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
48 return true;
49 }
50 return false;
51}
52#endif /* ERRATA_A75_764081 */
Govindraj Raja57bdc572025-02-04 16:04:27 +0100[diff] [blame]53
54bool errata_ich_vmcr_el2_applies(void)
55{
56 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Raja8f709372025-01-21 12:32:14 -0600[diff] [blame]57#if ERRATA_A710_3701772
58 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
59 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
60 return true;
61 break;
62#endif /* ERRATA_A710_3701772 */
63
Govindraj Raja857cfc22025-01-21 17:00:11 -0600[diff] [blame]64#if ERRATA_A715_3699560
65 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
66 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
67 return true;
68 break;
69#endif /* ERRATA_A715_3699560 */
70
Govindraj Raja36b53f92025-01-21 17:12:33 -0600[diff] [blame]71#if ERRATA_A720_3699561
72 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
73 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
74 return true;;
75 break;
76#endif /* ERRATA_A720_3699561 */
77
Govindraj Raja17b8a8a2025-02-04 16:20:35 +0100[diff] [blame]78#if ERRATA_A725_3699564
79 case EXTRACT_PARTNUM(CORTEX_A725_MIDR):
80 if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES)
81 return true;
82 break;
83#endif /* ERRATA_A725_3699564 */
Govindraj Raja3e9433d2025-01-21 18:02:51 -0600[diff] [blame]84
85#if ERRATA_X2_3701772
86 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
87 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
88 return true;
89 break;
90#endif /* ERRATA_X2_3701772 */
91
Govindraj Raja1852f602025-01-21 18:12:35 -0600[diff] [blame]92#if ERRATA_X3_3701769
93 case EXTRACT_PARTNUM(CORTEX_X3_MIDR):
94 if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES)
95 return true;
96 break;
97#endif /* ERRATA_X3_3701769 */
98
Govindraj Rajadb3048d2025-01-21 18:24:57 -0600[diff] [blame]99#if ERRATA_X4_3701758
100 case EXTRACT_PARTNUM(CORTEX_X4_MIDR):
101 if (check_erratum_cortex_x4_3701758(cpu_get_rev_var()) == ERRATA_APPLIES)
102 return true;
103 break;
104#endif /* ERRATA_X4_3701758 */
105
Govindraj Rajac8a6cc02025-01-21 18:38:56 -0600[diff] [blame]106#if ERRATA_X925_3701747
107 case EXTRACT_PARTNUM(CORTEX_X925_MIDR):
108 if (check_erratum_cortex_x925_3701747(cpu_get_rev_var()) == ERRATA_APPLIES)
109 return true;
110 break;
111#endif /* ERRATA_X925_3701747 */
Govindraj Raja1d175782025-01-21 18:56:25 -0600[diff] [blame]112
113#if ERRATA_N2_3701773
114 case EXTRACT_PARTNUM(NEOVERSE_N2_MIDR):
115 if (check_erratum_neoverse_n2_3701773(cpu_get_rev_var()) == ERRATA_APPLIES)
116 return true;
117 break;
118#endif /* ERRATA_N2_3701773 */
119
Govindraj Rajae2a5da12025-01-21 19:03:34 -0600[diff] [blame^]120#if ERRATA_N3_3699563
121 case EXTRACT_PARTNUM(NEOVERSE_N3_MIDR):
122 if (check_erratum_neoverse_n3_3699563(cpu_get_rev_var()) == ERRATA_APPLIES)
123 return true;
124 break;
125#endif /* ERRATA_N3_3699563 */
Govindraj Raja57bdc572025-02-04 16:04:27 +0100[diff] [blame]126 default:
127 break;
128 }
129
130 return false;
131}