1721249b0SArvind Ram Prakash /* 27455cd17SGovindraj Raja * Copyright (c) 2024-2025, Arm Limited and Contributors. All rights reserved. 3721249b0SArvind Ram Prakash * 4721249b0SArvind Ram Prakash * SPDX-License-Identifier: BSD-3-Clause 5721249b0SArvind Ram Prakash */ 6721249b0SArvind Ram Prakash 7721249b0SArvind Ram Prakash /* Runtime C routines for errata workarounds and common routines */ 8721249b0SArvind Ram Prakash 9721249b0SArvind Ram Prakash #include <arch.h> 10721249b0SArvind Ram Prakash #include <arch_helpers.h> 117455cd17SGovindraj Raja #include <cortex_a75.h> 12721249b0SArvind Ram Prakash #include <cortex_a520.h> 13463b5b4aSGovindraj Raja #include <cortex_a710.h> 1426437afdSGovindraj Raja #include <cortex_a715.h> 15050c4a38SGovindraj Raja #include <cortex_a720.h> 16af5ae9a7SGovindraj Raja #include <cortex_a720_ae.h> 17d732300bSGovindraj Raja #include <cortex_a725.h> 18ae6c7c97SGovindraj Raja #include <cortex_x2.h> 19*77feb745SGovindraj Raja #include <cortex_x3.h> 20721249b0SArvind Ram Prakash #include <cortex_x4.h> 21721249b0SArvind Ram Prakash #include <lib/cpus/cpu_ops.h> 22721249b0SArvind Ram Prakash #include <lib/cpus/errata.h> 23721249b0SArvind Ram Prakash 24721249b0SArvind Ram Prakash #if ERRATA_A520_2938996 || ERRATA_X4_2726228 25721249b0SArvind Ram Prakash unsigned int check_if_affected_core(void) 26721249b0SArvind Ram Prakash { 27721249b0SArvind Ram Prakash uint32_t midr_val = read_midr(); 28721249b0SArvind Ram Prakash long rev_var = cpu_get_rev_var(); 29721249b0SArvind Ram Prakash 30721249b0SArvind Ram Prakash if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_A520_MIDR)) { 31721249b0SArvind Ram Prakash return check_erratum_cortex_a520_2938996(rev_var); 32721249b0SArvind Ram Prakash } else if (EXTRACT_PARTNUM(midr_val) == EXTRACT_PARTNUM(CORTEX_X4_MIDR)) { 33721249b0SArvind Ram Prakash return check_erratum_cortex_x4_2726228(rev_var); 34721249b0SArvind Ram Prakash } 35721249b0SArvind Ram Prakash 36721249b0SArvind Ram Prakash return ERRATA_NOT_APPLIES; 37721249b0SArvind Ram Prakash } 38721249b0SArvind Ram Prakash #endif 397f152ea6SSona Mathew 407f152ea6SSona Mathew #if ERRATA_A75_764081 417f152ea6SSona Mathew bool errata_a75_764081_applies(void) 427f152ea6SSona Mathew { 437f152ea6SSona Mathew long rev_var = cpu_get_rev_var(); 447f152ea6SSona Mathew if (check_erratum_cortex_a75_764081(rev_var) == ERRATA_APPLIES) { 457f152ea6SSona Mathew return true; 467f152ea6SSona Mathew } 477f152ea6SSona Mathew return false; 487f152ea6SSona Mathew } 497f152ea6SSona Mathew #endif /* ERRATA_A75_764081 */ 507455cd17SGovindraj Raja 517455cd17SGovindraj Raja bool errata_ich_vmcr_el2_applies(void) 527455cd17SGovindraj Raja { 537455cd17SGovindraj Raja switch (EXTRACT_PARTNUM(read_midr())) { 54463b5b4aSGovindraj Raja #if ERRATA_A710_3701772 55463b5b4aSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A710_MIDR): 56463b5b4aSGovindraj Raja if (check_erratum_cortex_a710_3701772(cpu_get_rev_var()) == ERRATA_APPLIES) 57463b5b4aSGovindraj Raja return true; 58463b5b4aSGovindraj Raja break; 59463b5b4aSGovindraj Raja #endif /* ERRATA_A710_3701772 */ 60463b5b4aSGovindraj Raja 6126437afdSGovindraj Raja #if ERRATA_A715_3699560 6226437afdSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A715_MIDR): 6326437afdSGovindraj Raja if (check_erratum_cortex_a715_3699560(cpu_get_rev_var()) == ERRATA_APPLIES) 6426437afdSGovindraj Raja return true; 6526437afdSGovindraj Raja break; 6626437afdSGovindraj Raja #endif /* ERRATA_A715_3699560 */ 6726437afdSGovindraj Raja 68050c4a38SGovindraj Raja #if ERRATA_A720_3699561 69050c4a38SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A720_MIDR): 70050c4a38SGovindraj Raja if (check_erratum_cortex_a720_3699561(cpu_get_rev_var()) == ERRATA_APPLIES) 71050c4a38SGovindraj Raja return true;; 72050c4a38SGovindraj Raja break; 73050c4a38SGovindraj Raja #endif /* ERRATA_A720_3699561 */ 74050c4a38SGovindraj Raja 75af5ae9a7SGovindraj Raja #if ERRATA_A720_AE_3699562 76af5ae9a7SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A720_AE_MIDR): 77af5ae9a7SGovindraj Raja if (check_erratum_cortex_a720_ae_3699562(cpu_get_rev_var()) == ERRATA_APPLIES) 78af5ae9a7SGovindraj Raja return true; 79af5ae9a7SGovindraj Raja break; 80af5ae9a7SGovindraj Raja #endif /* ERRATA_A720_AE_3699562 */ 81af5ae9a7SGovindraj Raja 82d732300bSGovindraj Raja #if ERRATA_A725_3699564 83d732300bSGovindraj Raja case EXTRACT_PARTNUM(CORTEX_A725_MIDR): 84d732300bSGovindraj Raja if (check_erratum_cortex_a725_3699564(cpu_get_rev_var()) == ERRATA_APPLIES) 85d732300bSGovindraj Raja return true; 86d732300bSGovindraj Raja break; 87d732300bSGovindraj Raja #endif /* ERRATA_A725_3699564 */ 88ae6c7c97SGovindraj Raja 89ae6c7c97SGovindraj Raja #if ERRATA_X2_3701772 90ae6c7c97SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_X2_MIDR): 91ae6c7c97SGovindraj Raja if (check_erratum_cortex_x2_3701772(cpu_get_rev_var()) == ERRATA_APPLIES) 92ae6c7c97SGovindraj Raja return true; 93ae6c7c97SGovindraj Raja break; 94ae6c7c97SGovindraj Raja #endif /* ERRATA_X2_3701772 */ 95ae6c7c97SGovindraj Raja 96*77feb745SGovindraj Raja #if ERRATA_X3_3701769 97*77feb745SGovindraj Raja case EXTRACT_PARTNUM(CORTEX_X3_MIDR): 98*77feb745SGovindraj Raja if (check_erratum_cortex_x3_3701769(cpu_get_rev_var()) == ERRATA_APPLIES) 99*77feb745SGovindraj Raja return true; 100*77feb745SGovindraj Raja break; 101*77feb745SGovindraj Raja #endif /* ERRATA_X3_3701769 */ 102*77feb745SGovindraj Raja 1037455cd17SGovindraj Raja default: 1047455cd17SGovindraj Raja break; 1057455cd17SGovindraj Raja } 1067455cd17SGovindraj Raja 1077455cd17SGovindraj Raja return false; 1087455cd17SGovindraj Raja } 109