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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / adea6e52a782eeabd9027e3ca9a9847a13453cfa / . / lib / cpus / errata_common.c
blob: 3944fc07e154161e6d51e87505e15ddb7a8e5df8 [file] [log] [blame]
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]1/*
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]2 * Copyright (c) 2024-2025, Arm Limited and Contributors. All rights reserved.
Arvind Ram Prakash721249b2024-08-05 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 Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]11#include <cortex_a75.h>
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]12#include <cortex_a520.h>
Govindraj Raja463b5b42025-01-21 12:32:14 -0600[diff] [blame]13#include <cortex_a710.h>
Govindraj Raja26437af2025-01-21 17:00:11 -0600[diff] [blame]14#include <cortex_a715.h>
Govindraj Raja050c4a32025-01-21 17:12:33 -0600[diff] [blame]15#include <cortex_a720.h>
Govindraj Rajaaf5ae9a2025-01-21 17:23:26 -0600[diff] [blame]16#include <cortex_a720_ae.h>
Govindraj Rajad7323002025-01-21 17:44:17 -0600[diff] [blame]17#include <cortex_a725.h>
Govindraj Rajaae6c7c92025-01-21 18:02:51 -0600[diff] [blame]18#include <cortex_x2.h>
Govindraj Raja77feb742025-01-21 18:12:35 -0600[diff] [blame]19#include <cortex_x3.h>
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]20#include <cortex_x4.h>
Govindraj Raja511148e2025-01-21 18:38:56 -0600[diff] [blame]21#include <cortex_x925.h>
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]22#include <lib/cpus/cpu_ops.h>
23#include <lib/cpus/errata.h>
Govindraj Rajaadea6e52025-01-21 18:56:25 -0600[diff] [blame^]24#include <neoverse_n2.h>
Arvind Ram Prakash721249b2024-08-05 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 Mathew7f152ea2024-07-10 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 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
47 return true;
48 }
49 return false;
50}
51#endif /* ERRATA_A75_764081 */
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]52
53bool errata_ich_vmcr_el2_applies(void)
54{
55 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Raja463b5b42025-01-21 12:32:14 -0600[diff] [blame]56#if ERRATA_A710_3701772
57 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
58 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
59 return true;
60 break;
61#endif /* ERRATA_A710_3701772 */
62
Govindraj Raja26437af2025-01-21 17:00:11 -0600[diff] [blame]63#if ERRATA_A715_3699560
64 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
65 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
66 return true;
67 break;
68#endif /* ERRATA_A715_3699560 */
69
Govindraj Raja050c4a32025-01-21 17:12:33 -0600[diff] [blame]70#if ERRATA_A720_3699561
71 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
72 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
73 return true;;
74 break;
75#endif /* ERRATA_A720_3699561 */
76
Govindraj Rajaaf5ae9a2025-01-21 17:23:26 -0600[diff] [blame]77#if ERRATA_A720_AE_3699562
78 case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR):
79 if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES)
80 return true;
81 break;
82#endif /* ERRATA_A720_AE_3699562 */
83
Govindraj Rajad7323002025-01-21 17:44:17 -0600[diff] [blame]84#if ERRATA_A725_3699564
85 case EXTRACT_PARTNUM(CORTEX_A725_MIDR):
86 if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES)
87 return true;
88 break;
89#endif /* ERRATA_A725_3699564 */
Govindraj Rajaae6c7c92025-01-21 18:02:51 -0600[diff] [blame]90
91#if ERRATA_X2_3701772
92 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
93 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
94 return true;
95 break;
96#endif /* ERRATA_X2_3701772 */
97
Govindraj Raja77feb742025-01-21 18:12:35 -0600[diff] [blame]98#if ERRATA_X3_3701769
99 case EXTRACT_PARTNUM(CORTEX_X3_MIDR):
100 if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES)
101 return true;
102 break;
103#endif /* ERRATA_X3_3701769 */
104
Govindraj Raja38401c52025-01-21 18:24:57 -0600[diff] [blame]105#if ERRATA_X4_3701758
106 case EXTRACT_PARTNUM(CORTEX_X4_MIDR):
107 if (check_erratum_cortex_x4_3701758(cpu_get_rev_var()) == ERRATA_APPLIES)
108 return true;
109 break;
110#endif /* ERRATA_X4_3701758 */
111
Govindraj Raja511148e2025-01-21 18:38:56 -0600[diff] [blame]112#if ERRATA_X925_3701747
113 case EXTRACT_PARTNUM(CORTEX_X925_MIDR):
114 if (check_erratum_cortex_x925_3701747(cpu_get_rev_var()) == ERRATA_APPLIES)
115 return true;
116 break;
117#endif /* ERRATA_X925_3701747 */
Govindraj Rajaadea6e52025-01-21 18:56:25 -0600[diff] [blame^]118
119#if ERRATA_N2_3701773
120 case EXTRACT_PARTNUM(NEOVERSE_N2_MIDR):
121 if (check_erratum_neoverse_n2_3701773(cpu_get_rev_var()) == ERRATA_APPLIES)
122 return true;
123 break;
124#endif /* ERRATA_N2_3701773 */
125
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]126 default:
127 break;
128 }
129
130 return false;
131}