/* * Copyright (c) 2017 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ #ifndef _ARM_MACHINE_CPUID_H_ #define _ARM_MACHINE_CPUID_H_ /* CPU feature identification */ typedef struct { uint32_t arm_32bit_isa : 4, arm_thumb_ver : 4, arm_jazelle : 4, arm_thumb2 : 4, reserved : 16; } arm_feature_bits_t; typedef union { arm_feature_bits_t field; uint32_t value; } arm_feature0_reg_t; // Register 0, subtype 21: Instruction Set Features #1 typedef struct { uint32_t endianness_support : 4; uint32_t exception_1_support : 4; uint32_t exception_2_support : 4; uint32_t sign_zero_ext_support : 4; uint32_t if_then_support : 4; uint32_t immediate_support : 4; uint32_t interworking_support : 4; uint32_t jazelle_support : 4; } syscp_ID_instructions_feat_1_reg; typedef union { uint32_t value; syscp_ID_instructions_feat_1_reg field; } arm_isa_feat1_reg; arm_isa_feat1_reg machine_read_isa_feat1(void); /* Debug identification */ /* ID_DFR0 */ typedef union { struct { uint32_t coprocessor_core_debug : 4, coprocessor_secure_debug : 4, memory_mapped_core_debug : 4, coprocessor_trace_debug : 4, memory_mapped_trace_debug : 4, microcontroller_debug : 4; } debug_feature; uint32_t value; } arm_cpuid_id_dfr0; /* DBGDIDR */ typedef union { struct { uint32_t revision : 4, variant : 4, : 4, se_imp : 1, pcsr_imp : 1, nsuhd_imp : 1, : 1, version : 4, ctx_cmps : 4, brps : 4, wrps : 4; } debug_id; uint32_t value; } arm_debug_dbgdidr; typedef struct { boolean_t memory_mapped_core_debug; boolean_t coprocessor_core_debug; uint32_t num_watchpoint_pairs; uint32_t num_breakpoint_pairs; } arm_debug_info_t; #endif /* _ARM_MACHINE_CPUID_H_ */