1 /* 2 * Copyright (c) 2023-2024, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef ERRATA_CPUSPEC_H 8 #define ERRATA_CPUSPEC_H 9 10 #include <stdint.h> 11 #include <arch_helpers.h> 12 13 #if __aarch64__ 14 #include <cortex_a710.h> 15 #include <cortex_a78.h> 16 #include <cortex_a78_ae.h> 17 #include <cortex_a78c.h> 18 #include <cortex_x2.h> 19 #include <cortex_x3.h> 20 #include <cortex_x4.h> 21 #include <neoverse_n2.h> 22 #include <neoverse_v1.h> 23 #include <neoverse_v2.h> 24 #endif 25 26 /* Max number of platform based errata with no workaround in EL3 */ 27 #define MAX_PLAT_CPU_ERRATA_ENTRIES 2 28 29 #define ERRATA_LIST_END (MAX_PLAT_CPU_ERRATA_ENTRIES - 1) 30 31 /* Default values for unused memory in the array */ 32 #define UNDEF_ERRATA {UINT_MAX, UCHAR_MAX, UCHAR_MAX} 33 34 #define EXTRACT_PARTNUM(x) ((x >> MIDR_PN_SHIFT) & MIDR_PN_MASK) 35 36 #define RXPX_RANGE(x, y, z) (((x >= y) && (x <= z)) ? true : false) 37 38 /* 39 * CPU specific values for errata handling 40 */ 41 struct em_cpu{ 42 unsigned int em_errata_id; 43 unsigned char em_rxpx_lo; /* lowest revision of errata applicable for the cpu */ 44 unsigned char em_rxpx_hi; /* highest revision of errata applicable for the cpu */ 45 }; 46 47 struct em_cpu_list{ 48 unsigned long cpu_partnumber; /* cpu specific part number defined in midr reg */ 49 struct em_cpu cpu_errata_list[MAX_PLAT_CPU_ERRATA_ENTRIES]; 50 }; 51 52 int32_t verify_errata_implemented(uint32_t errata_id, uint32_t forward_flag); 53 #endif /* ERRATA_CPUSPEC_H */ 54