osfmk/arm64/machine_cpuid.h

   1 /*
   2  * Copyright (c) 2017 Apple Inc. All rights reserved.
   3  *
   4  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
   5  *
   6  * This file contains Original Code and/or Modifications of Original Code
   7  * as defined in and that are subject to the Apple Public Source License
   8  * Version 2.0 (the 'License'). You may not use this file except in
   9  * compliance with the License. The rights granted to you under the License
  10  * may not be used to create, or enable the creation or redistribution of,
  11  * unlawful or unlicensed copies of an Apple operating system, or to
  12  * circumvent, violate, or enable the circumvention or violation of, any
  13  * terms of an Apple operating system software license agreement.
  14  *
  15  * Please obtain a copy of the License at
  16  * http://www.opensource.apple.com/apsl/ and read it before using this file.
  17  *
  18  * The Original Code and all software distributed under the License are
  19  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  20  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  21  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  22  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  23  * Please see the License for the specific language governing rights and
  24  * limitations under the License.
  25  *
  26  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  27  */
  28 #ifndef _ARM64_MACHINE_CPUID_H_
  29 #define _ARM64_MACHINE_CPUID_H_
  30
  31 typedef struct {
  32         uint64_t        el0_not_implemented             : 1,
  33             el0_aarch64_only                : 1,
  34             el0_aarch32_and_64              : 1,
  35             el1_not_implemented             : 1,
  36             el1_aarch64_only                : 1,
  37             el1_aarch32_and_64              : 1,
  38             el2_not_implemented             : 1,
  39             el2_aarch64_only                : 1,
  40             el2_aarch32_and_64              : 1,
  41             el3_not_implemented             : 1,
  42             el3_aarch64_only                : 1,
  43             el3_aarch32_and_64              : 1,
  44             reserved                                : 52;
  45 } arm_feature_bits_t;
  46
  47 /* Debug identification */
  48
  49 /* ID_AA64DFR0_EL1 */
  50 typedef union {
  51         struct {
  52                 uint64_t debug_arch_version             : 4,
  53                     trace_extn_version             : 4,
  54                     perf_extn_version              : 4,
  55                     brps                                   : 4,
  56                     reserved0                              : 4,
  57                     wrps                                   : 4,
  58                     reserved1                              : 4,
  59                     ctx_cmps                               : 4,
  60                     reserved32                             : 32;
  61         } debug_feature;
  62         uint64_t value;
  63 } arm_cpuid_id_aa64dfr0_el1;
  64
  65 typedef struct {
  66         uint32_t        num_watchpoint_pairs;
  67         uint32_t        num_breakpoint_pairs;
  68 } arm_debug_info_t;
  69
  70 #endif /* _MACHINE_CPUID_H_ */