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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / 38401c5388b5c3127745b758b3dc939d27041d7d / . / lib / cpus / errata_common.c
blob: acb9fe3d2c78d98fe0d46f3acd2180cc6cf353e8 [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>
21#include <lib/cpus/cpu_ops.h>
22#include <lib/cpus/errata.h>
23
24#if ERRATA_A520_2938996 || ERRATA_X4_2726228
25unsigned int check_if_affected_core(void)
26{
27 uint32_t midr_val = read_midr();
28 long rev_var = cpu_get_rev_var();
29
30 if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) {
31 return check_erratum_cortex_a520_2938996(rev_var);
32 } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) {
33 return check_erratum_cortex_x4_2726228(rev_var);
34 }
35
36 return ERRATA_NOT_APPLIES;
37}
38#endif
Sona Mathew7f152ea2024-07-10 18:04:40 -0500[diff] [blame]39
40#if ERRATA_A75_764081
41bool errata_a75_764081_applies(void)
42{
43 long rev_var = cpu_get_rev_var();
44 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
45 return true;
46 }
47 return false;
48}
49#endif /* ERRATA_A75_764081 */
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]50
51bool errata_ich_vmcr_el2_applies(void)
52{
53 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Raja463b5b42025-01-21 12:32:14 -0600[diff] [blame]54#if ERRATA_A710_3701772
55 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
56 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
57 return true;
58 break;
59#endif /* ERRATA_A710_3701772 */
60
Govindraj Raja26437af2025-01-21 17:00:11 -0600[diff] [blame]61#if ERRATA_A715_3699560
62 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
63 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
64 return true;
65 break;
66#endif /* ERRATA_A715_3699560 */
67
Govindraj Raja050c4a32025-01-21 17:12:33 -0600[diff] [blame]68#if ERRATA_A720_3699561
69 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
70 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
71 return true;;
72 break;
73#endif /* ERRATA_A720_3699561 */
74
Govindraj Rajaaf5ae9a2025-01-21 17:23:26 -0600[diff] [blame]75#if ERRATA_A720_AE_3699562
76 case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR):
77 if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES)
78 return true;
79 break;
80#endif /* ERRATA_A720_AE_3699562 */
81
Govindraj Rajad7323002025-01-21 17:44:17 -0600[diff] [blame]82#if ERRATA_A725_3699564
83 case EXTRACT_PARTNUM(CORTEX_A725_MIDR):
84 if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES)
85 return true;
86 break;
87#endif /* ERRATA_A725_3699564 */
Govindraj Rajaae6c7c92025-01-21 18:02:51 -0600[diff] [blame]88
89#if ERRATA_X2_3701772
90 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
91 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
92 return true;
93 break;
94#endif /* ERRATA_X2_3701772 */
95
Govindraj Raja77feb742025-01-21 18:12:35 -0600[diff] [blame]96#if ERRATA_X3_3701769
97 case EXTRACT_PARTNUM(CORTEX_X3_MIDR):
98 if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES)
99 return true;
100 break;
101#endif /* ERRATA_X3_3701769 */
102
Govindraj Raja38401c52025-01-21 18:24:57 -0600[diff] [blame^]103#if ERRATA_X4_3701758
104 case EXTRACT_PARTNUM(CORTEX_X4_MIDR):
105 if (check_erratum_cortex_x4_3701758(cpu_get_rev_var()) == ERRATA_APPLIES)
106 return true;
107 break;
108#endif /* ERRATA_X4_3701758 */
109
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]110 default:
111 break;
112 }
113
114 return false;
115}