1 | /* |
2 | * Copyright (c) 2007 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 | /* |
29 | * @OSF_COPYRIGHT@ |
30 | */ |
31 | /* |
32 | * Mach Operating System |
33 | * Copyright (c) 1991,1990,1989 Carnegie Mellon University |
34 | * All Rights Reserved. |
35 | * |
36 | * Permission to use, copy, modify and distribute this software and its |
37 | * documentation is hereby granted, provided that both the copyright |
38 | * notice and this permission notice appear in all copies of the |
39 | * software, derivative works or modified versions, and any portions |
40 | * thereof, and that both notices appear in supporting documentation. |
41 | * |
42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
45 | * |
46 | * Carnegie Mellon requests users of this software to return to |
47 | * |
48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
49 | * School of Computer Science |
50 | * Carnegie Mellon University |
51 | * Pittsburgh PA 15213-3890 |
52 | * |
53 | * any improvements or extensions that they make and grant Carnegie Mellon |
54 | * the rights to redistribute these changes. |
55 | */ |
56 | /* |
57 | */ |
58 | |
59 | #ifndef _ARM_THREAD_H_ |
60 | #define _ARM_THREAD_H_ |
61 | |
62 | #include <mach/mach_types.h> |
63 | #include <mach/boolean.h> |
64 | #include <mach/arm/vm_types.h> |
65 | #include <mach/thread_status.h> |
66 | |
67 | #ifdef MACH_KERNEL_PRIVATE |
68 | #include <arm/cpu_data.h> |
69 | #include <arm/proc_reg.h> |
70 | #endif |
71 | |
72 | #if __ARM_VFP__ |
73 | |
74 | #define VFPSAVE_ALIGN 16 |
75 | #define VFPSAVE_ATTRIB __attribute__ ((aligned (VFPSAVE_ALIGN))) |
76 | #define THREAD_ALIGN VFPSAVE_ALIGN |
77 | |
78 | /* |
79 | * vector floating point saved state |
80 | */ |
81 | struct arm_vfpsaved_state { |
82 | uint32_t r[64]; |
83 | uint32_t fpscr; |
84 | uint32_t fpexc; |
85 | }; |
86 | #endif |
87 | |
88 | struct perfcontrol_state { |
89 | uint64_t opaque[8] __attribute__((aligned(8))); |
90 | }; |
91 | |
92 | /* |
93 | * Maps state flavor to number of words in the state: |
94 | */ |
95 | extern unsigned int _MachineStateCount[]; |
96 | |
97 | #ifdef MACH_KERNEL_PRIVATE |
98 | #if __arm64__ |
99 | typedef arm_context_t machine_thread_kernel_state; |
100 | #else |
101 | typedef struct arm_saved_state machine_thread_kernel_state; |
102 | #endif |
103 | #include <kern/thread_kernel_state.h> |
104 | |
105 | struct machine_thread { |
106 | #if __arm64__ |
107 | arm_context_t *contextData; /* allocated user context */ |
108 | arm_saved_state_t *upcb; /* pointer to user GPR state */ |
109 | arm_neon_saved_state_t *uNeon; /* pointer to user VFP state */ |
110 | #elif __arm__ |
111 | struct arm_saved_state PcbData; |
112 | #if __ARM_VFP__ |
113 | struct arm_vfpsaved_state uVFPdata VFPSAVE_ATTRIB; |
114 | struct arm_vfpsaved_state kVFPdata VFPSAVE_ATTRIB; |
115 | #endif /* __ARM_VFP__ */ |
116 | |
117 | #else |
118 | #error Unknown arch |
119 | #endif |
120 | #if __ARM_USER_PROTECT__ |
121 | unsigned int uptw_ttc; |
122 | unsigned int uptw_ttb; |
123 | unsigned int kptw_ttb; |
124 | unsigned int asid; |
125 | #endif |
126 | |
127 | vm_offset_t kstackptr; /* top of kernel stack */ |
128 | struct cpu_data *CpuDatap; /* current per cpu data */ |
129 | unsigned int preemption_count; /* preemption count */ |
130 | |
131 | arm_debug_state_t *DebugData; |
132 | mach_vm_address_t cthread_self; /* for use of cthread package */ |
133 | mach_vm_address_t cthread_data; /* for use of cthread package */ |
134 | |
135 | struct perfcontrol_state perfctrl_state; |
136 | #if __arm64__ |
137 | uint64_t energy_estimate_nj; |
138 | #endif |
139 | |
140 | #if INTERRUPT_MASKED_DEBUG |
141 | uint64_t intmask_timestamp; /* timestamp of when interrupts were masked */ |
142 | #endif |
143 | }; |
144 | #endif |
145 | |
146 | extern struct arm_saved_state *get_user_regs(thread_t); |
147 | extern struct arm_saved_state *find_user_regs(thread_t); |
148 | extern struct arm_saved_state *find_kern_regs(thread_t); |
149 | extern struct arm_vfpsaved_state *find_user_vfp(thread_t); |
150 | #if defined(__arm__) |
151 | extern arm_debug_state_t *find_debug_state(thread_t); |
152 | #elif defined(__arm64__) |
153 | extern arm_debug_state32_t *find_debug_state32(thread_t); |
154 | extern arm_debug_state64_t *find_debug_state64(thread_t); |
155 | extern arm_neon_saved_state_t *get_user_neon_regs(thread_t); |
156 | #else |
157 | #error unknown arch |
158 | #endif |
159 | |
160 | #define FIND_PERFCONTROL_STATE(th) (&th->machine.perfctrl_state) |
161 | |
162 | #ifdef MACH_KERNEL_PRIVATE |
163 | #if __ARM_VFP__ |
164 | extern void vfp_state_initialize(struct arm_vfpsaved_state *vfp_state); |
165 | extern void vfp_save(struct arm_vfpsaved_state *vfp_ss); |
166 | extern void vfp_load(struct arm_vfpsaved_state *vfp_ss); |
167 | extern void toss_live_vfp(void *vfp_fc); |
168 | #endif /* __ARM_VFP__ */ |
169 | extern void arm_debug_set(arm_debug_state_t *debug_state); |
170 | #if defined(__arm64__) |
171 | extern void arm_debug_set32(arm_debug_state_t *debug_state); |
172 | extern void arm_debug_set64(arm_debug_state_t *debug_state); |
173 | |
174 | kern_return_t handle_get_arm_thread_state( |
175 | thread_state_t tstate, |
176 | mach_msg_type_number_t * count, |
177 | const arm_saved_state_t *saved_state); |
178 | kern_return_t handle_get_arm32_thread_state( |
179 | thread_state_t tstate, |
180 | mach_msg_type_number_t * count, |
181 | const arm_saved_state_t *saved_state); |
182 | kern_return_t handle_get_arm64_thread_state( |
183 | thread_state_t tstate, |
184 | mach_msg_type_number_t * count, |
185 | const arm_saved_state_t *saved_state); |
186 | |
187 | kern_return_t handle_set_arm_thread_state( |
188 | const thread_state_t tstate, |
189 | mach_msg_type_number_t count, |
190 | arm_saved_state_t *saved_state); |
191 | kern_return_t handle_set_arm32_thread_state( |
192 | const thread_state_t tstate, |
193 | mach_msg_type_number_t count, |
194 | arm_saved_state_t *saved_state); |
195 | kern_return_t handle_set_arm64_thread_state( |
196 | const thread_state_t tstate, |
197 | mach_msg_type_number_t count, |
198 | arm_saved_state_t *saved_state); |
199 | #endif |
200 | #endif /* MACH_KERNEL_PRIVATE */ |
201 | |
202 | extern void *act_thread_csave(void); |
203 | extern void act_thread_catt(void *ctx); |
204 | extern void act_thread_cfree(void *ctx); |
205 | |
206 | /* |
207 | * Return address of the function that called current function, given |
208 | * address of the first parameter of current function. |
209 | */ |
210 | #define GET_RETURN_PC(addr) (((vm_offset_t *)0)) |
211 | |
212 | /* |
213 | * Defining this indicates that MD code will supply an exception() |
214 | * routine, conformant with kern/exception.c (dependency alert!) |
215 | * but which does wonderfully fast, machine-dependent magic. |
216 | */ |
217 | #define MACHINE_FAST_EXCEPTION 1 |
218 | |
219 | #endif /* _ARM_THREAD_H_ */ |
220 | |