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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / d732300b86238ac7166bc9bebd667a24dc3ed062 / . / lib / cpus / errata_common.c
blob: d9f83391f41b5a16ec0527634c05b068741bdc14 [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>
Arvind Ram Prakash721249b2024-08-05 16:11:42 -0500[diff] [blame]18#include <cortex_x4.h>
19#include <lib/cpus/cpu_ops.h>
20#include <lib/cpus/errata.h>
21
22#if ERRATA_A520_2938996 || ERRATA_X4_2726228
23unsigned int check_if_affected_core(void)
24{
25 uint32_t midr_val = read_midr();
26 long rev_var = cpu_get_rev_var();
27
28 if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) {
29 return check_erratum_cortex_a520_2938996(rev_var);
30 } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) {
31 return check_erratum_cortex_x4_2726228(rev_var);
32 }
33
34 return ERRATA_NOT_APPLIES;
35}
36#endif
Sona Mathew7f152ea2024-07-10 18:04:40 -0500[diff] [blame]37
38#if ERRATA_A75_764081
39bool errata_a75_764081_applies(void)
40{
41 long rev_var = cpu_get_rev_var();
42 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
43 return true;
44 }
45 return false;
46}
47#endif /* ERRATA_A75_764081 */
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]48
49bool errata_ich_vmcr_el2_applies(void)
50{
51 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Raja463b5b42025-01-21 12:32:14 -0600[diff] [blame]52#if ERRATA_A710_3701772
53 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
54 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
55 return true;
56 break;
57#endif /* ERRATA_A710_3701772 */
58
Govindraj Raja26437af2025-01-21 17:00:11 -0600[diff] [blame]59#if ERRATA_A715_3699560
60 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
61 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
62 return true;
63 break;
64#endif /* ERRATA_A715_3699560 */
65
Govindraj Raja050c4a32025-01-21 17:12:33 -0600[diff] [blame]66#if ERRATA_A720_3699561
67 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
68 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
69 return true;;
70 break;
71#endif /* ERRATA_A720_3699561 */
72
Govindraj Rajaaf5ae9a2025-01-21 17:23:26 -0600[diff] [blame]73#if ERRATA_A720_AE_3699562
74 case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR):
75 if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES)
76 return true;
77 break;
78#endif /* ERRATA_A720_AE_3699562 */
79
Govindraj Rajad7323002025-01-21 17:44:17 -0600[diff] [blame^]80#if ERRATA_A725_3699564
81 case EXTRACT_PARTNUM(CORTEX_A725_MIDR):
82 if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES)
83 return true;
84 break;
85#endif /* ERRATA_A725_3699564 */
Govindraj Raja7455cd12025-01-29 15:01:10 -0600[diff] [blame]86 default:
87 break;
88 }
89
90 return false;
91}