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review.trustedfirmware.org / TF-A / trusted-firmware-a / 2414a852a0c862e51f0fff4f20afa69eff424d99 / . / lib / cpus / errata_common.c
blob: 4adf29bc78b3d55bbc56bde424cb04241d5a95a0 [file] [log] [blame]
Arvind Ram Prakash10cd41d2024-08-05 16:11:42 -0500[diff] [blame]1/*
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]2 * Copyright (c) 2024-2025, Arm Limited and Contributors. All rights reserved.
Arvind Ram Prakash10cd41d2024-08-05 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 Mathew578d3572024-07-10 18:04:40 -0500[diff] [blame]11#include <cortex_a75.h>
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]12#include <cortex_a520.h>
Govindraj Rajac32e3a32025-01-21 12:32:14 -0600[diff] [blame]13#include <cortex_a710.h>
Govindraj Raja3b8a3ad2025-01-21 17:00:11 -0600[diff] [blame]14#include <cortex_a715.h>
Govindraj Rajac7d5de92025-01-21 17:12:33 -0600[diff] [blame]15#include <cortex_a720.h>
Govindraj Raja2296df62025-01-21 18:02:51 -0600[diff] [blame]16#include <cortex_x2.h>
Govindraj Rajaed4bd3c2025-01-21 18:12:35 -0600[diff] [blame]17#include <cortex_x3.h>
Arvind Ram Prakash10cd41d2024-08-05 16:11:42 -0500[diff] [blame]18#include <cortex_x4.h>
19#include <lib/cpus/cpu_ops.h>
20#include <lib/cpus/errata.h>
Govindraj Raja2414a852025-01-21 18:56:25 -0600[diff] [blame^]21#include <neoverse_n2.h>
Arvind Ram Prakash10cd41d2024-08-05 16:11:42 -0500[diff] [blame]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 Mathew578d3572024-07-10 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
44 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
45 return true;
46 }
47 return false;
48}
49#endif /* ERRATA_A75_764081 */
50
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]51bool errata_ich_vmcr_el2_applies(void)
52{
53 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Rajac32e3a32025-01-21 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 Raja3b8a3ad2025-01-21 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 Rajac7d5de92025-01-21 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 Raja2296df62025-01-21 18:02:51 -0600[diff] [blame]75#if ERRATA_X2_3701772
76 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
77 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
78 return true;
79 break;
80#endif /* ERRATA_X2_3701772 */
81
Govindraj Rajaed4bd3c2025-01-21 18:12:35 -0600[diff] [blame]82#if ERRATA_X3_3701769
83 case EXTRACT_PARTNUM(CORTEX_X3_MIDR):
84 if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES)
85 return true;
86 break;
87#endif /* ERRATA_X3_3701769 */
88
Govindraj Raja395f67e2025-01-21 18:24:57 -0600[diff] [blame]89#if ERRATA_X4_3701758
90 case EXTRACT_PARTNUM(CORTEX_X4_MIDR):
91 if (check_erratum_cortex_x4_3701758(cpu_get_rev_var()) == ERRATA_APPLIES)
92 return true;
93 break;
94#endif /* ERRATA_X4_3701758 */
95
Govindraj Raja2414a852025-01-21 18:56:25 -0600[diff] [blame^]96#if ERRATA_N2_3701773
97 case EXTRACT_PARTNUM(NEOVERSE_N2_MIDR):
98 if (check_erratum_neoverse_n2_3701773(cpu_get_rev_var()) == ERRATA_APPLIES)
99 return true;
100 break;
101#endif /* ERRATA_N2_3701773 */
102
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]103 default:
104 break;
105 }
106
107 return false;
108}