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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / ae6c7c97d4e0f491854b34628e0fa1038668f8e4 / . / lib / cpus / errata_common.c
blob: 5dbc50d61f07e328bf9e9815299a8fe5dc111806 [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>
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]19#include <cortex_x4.h>
20#include <lib/cpus/cpu_ops.h>
21#include <lib/cpus/errata.h>
22
23#if ERRATA_A520_2938996 || ERRATA_X4_2726228
24unsigned int check_if_affected_core(void)
25{
26 uint32_t midr_val = read_midr();
27 long rev_var = cpu_get_rev_var();
28
29 if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) {
30 return check_erratum_cortex_a520_2938996(rev_var);
31 } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) {
32 return check_erratum_cortex_x4_2726228(rev_var);
33 }
34
35 return ERRATA_NOT_APPLIES;
36}
37#endif
Sona Mathew7f152ea2024-07-10 18:04:40 -0500[diff] [blame]38
39#if ERRATA_A75_764081
40bool errata_a75_764081_applies(void)
41{
42 long rev_var = cpu_get_rev_var();
43 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
44 return true;
45 }
46 return false;
47}
48#endif /* ERRATA_A75_764081 */
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]49
50bool errata_ich_vmcr_el2_applies(void)
51{
52 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Raja463b5b42025-01-21 12:32:14 -0600[diff] [blame]53#if ERRATA_A710_3701772
54 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
55 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
56 return true;
57 break;
58#endif /* ERRATA_A710_3701772 */
59
Govindraj Raja26437af2025-01-21 17:00:11 -0600[diff] [blame]60#if ERRATA_A715_3699560
61 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
62 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
63 return true;
64 break;
65#endif /* ERRATA_A715_3699560 */
66
Govindraj Raja050c4a32025-01-21 17:12:33 -0600[diff] [blame]67#if ERRATA_A720_3699561
68 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
69 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
70 return true;;
71 break;
72#endif /* ERRATA_A720_3699561 */
73
Govindraj Rajaaf5ae9a2025-01-21 17:23:26 -0600[diff] [blame]74#if ERRATA_A720_AE_3699562
75 case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR):
76 if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES)
77 return true;
78 break;
79#endif /* ERRATA_A720_AE_3699562 */
80
Govindraj Rajad7323002025-01-21 17:44:17 -0600[diff] [blame]81#if ERRATA_A725_3699564
82 case EXTRACT_PARTNUM(CORTEX_A725_MIDR):
83 if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES)
84 return true;
85 break;
86#endif /* ERRATA_A725_3699564 */
Govindraj Rajaae6c7c92025-01-21 18:02:51 -0600[diff] [blame^]87
88#if ERRATA_X2_3701772
89 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
90 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
91 return true;
92 break;
93#endif /* ERRATA_X2_3701772 */
94
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]95 default:
96 break;
97 }
98
99 return false;
100}