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review.trustedfirmware.org / sandbox / arthur / trustedfirmware-a / 35caff9793f1a484db908f8df4e54141d90dd61e / . / lib / cpus / errata_common.c
blob: ae806a0928a69c4d7a85eae6b9715377057821da [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>
Govindraj Raja35caff92025-01-21 19:20:29 -0600[diff] [blame^]22#include <neoverse_v3.h>
Arvind Ram Prakash10cd41d2024-08-05 16:11:42 -0500[diff] [blame]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 Mathew578d3572024-07-10 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
45 if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) {
46 return true;
47 }
48 return false;
49}
50#endif /* ERRATA_A75_764081 */
51
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]52bool errata_ich_vmcr_el2_applies(void)
53{
54 switch (EXTRACT_PARTNUM(read_midr())) {
Govindraj Rajac32e3a32025-01-21 12:32:14 -0600[diff] [blame]55#if ERRATA_A710_3701772
56 case EXTRACT_PARTNUM(CORTEX_A710_MIDR):
57 if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
58 return true;
59 break;
60#endif /* ERRATA_A710_3701772 */
61
Govindraj Raja3b8a3ad2025-01-21 17:00:11 -0600[diff] [blame]62#if ERRATA_A715_3699560
63 case EXTRACT_PARTNUM(CORTEX_A715_MIDR):
64 if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES)
65 return true;
66 break;
67#endif /* ERRATA_A715_3699560 */
68
Govindraj Rajac7d5de92025-01-21 17:12:33 -0600[diff] [blame]69#if ERRATA_A720_3699561
70 case EXTRACT_PARTNUM(CORTEX_A720_MIDR):
71 if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES)
72 return true;;
73 break;
74#endif /* ERRATA_A720_3699561 */
75
Govindraj Raja2296df62025-01-21 18:02:51 -0600[diff] [blame]76#if ERRATA_X2_3701772
77 case EXTRACT_PARTNUM(CORTEX_X2_MIDR):
78 if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES)
79 return true;
80 break;
81#endif /* ERRATA_X2_3701772 */
82
Govindraj Rajaed4bd3c2025-01-21 18:12:35 -0600[diff] [blame]83#if ERRATA_X3_3701769
84 case EXTRACT_PARTNUM(CORTEX_X3_MIDR):
85 if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES)
86 return true;
87 break;
88#endif /* ERRATA_X3_3701769 */
89
Govindraj Raja395f67e2025-01-21 18:24:57 -0600[diff] [blame]90#if ERRATA_X4_3701758
91 case EXTRACT_PARTNUM(CORTEX_X4_MIDR):
92 if (check_erratum_cortex_x4_3701758(cpu_get_rev_var()) == ERRATA_APPLIES)
93 return true;
94 break;
95#endif /* ERRATA_X4_3701758 */
96
Govindraj Raja2414a852025-01-21 18:56:25 -0600[diff] [blame]97#if ERRATA_N2_3701773
98 case EXTRACT_PARTNUM(NEOVERSE_N2_MIDR):
99 if (check_erratum_neoverse_n2_3701773(cpu_get_rev_var()) == ERRATA_APPLIES)
100 return true;
101 break;
102#endif /* ERRATA_N2_3701773 */
103
Govindraj Raja35caff92025-01-21 19:20:29 -0600[diff] [blame^]104#if ERRATA_V3_3701767
105 case EXTRACT_PARTNUM(NEOVERSE_V3_MIDR):
106 if (check_erratum_neoverse_v3_3701767(cpu_get_rev_var()) == ERRATA_APPLIES)
107 return true;
108 break;
109#endif /* ERRATA_V3_3701767 */
110
Govindraj Raja8c6068f2025-01-29 15:01:10 -0600[diff] [blame]111 default:
112 break;
113 }
114
115 return false;
116}