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43866e37 | 1 | /* |
b0d623f7 | 2 | * Copyright (c) 2003-2009 Apple Inc. All rights reserved. |
43866e37 | 3 | * |
2d21ac55 | 4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
43866e37 | 5 | * |
2d21ac55 A |
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. | |
8f6c56a5 | 14 | * |
2d21ac55 A |
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 | |
8f6c56a5 A |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
2d21ac55 A |
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. | |
8f6c56a5 | 25 | * |
2d21ac55 | 26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
43866e37 | 27 | */ |
91447636 | 28 | #ifdef PRIVATE |
43866e37 A |
29 | |
30 | #ifndef _I386_CPU_CAPABILITIES_H | |
31 | #define _I386_CPU_CAPABILITIES_H | |
32 | ||
91447636 A |
33 | #ifndef __ASSEMBLER__ |
34 | #include <stdint.h> | |
35 | #endif | |
55e303ae | 36 | |
55e303ae | 37 | /* |
43866e37 | 38 | * This API only supported for Apple internal use. |
43866e37 A |
39 | */ |
40 | ||
55e303ae A |
41 | /* Bit definitions for _cpu_capabilities: */ |
42 | ||
43 | #define kHasMMX 0x00000001 | |
44 | #define kHasSSE 0x00000002 | |
45 | #define kHasSSE2 0x00000004 | |
91447636 | 46 | #define kHasSSE3 0x00000008 |
0c530ab8 | 47 | #define kCache32 0x00000010 /* cache line size is 32 bytes */ |
55e303ae A |
48 | #define kCache64 0x00000020 |
49 | #define kCache128 0x00000040 | |
0c530ab8 | 50 | #define kFastThreadLocalStorage 0x00000080 /* TLS ptr is kept in a user-mode-readable register */ |
2d21ac55 | 51 | #define kHasSupplementalSSE3 0x00000100 |
0c530ab8 | 52 | #define k64Bit 0x00000200 /* processor supports EM64T (not what mode you're running in) */ |
2d21ac55 A |
53 | #define kHasSSE4_1 0x00000400 |
54 | #define kHasSSE4_2 0x00000800 | |
d1ecb069 | 55 | #define kHasAES 0x00001000 |
6d2010ae | 56 | #define kInOrderPipeline 0x00002000 |
2d21ac55 | 57 | #define kSlow 0x00004000 /* tsc < nanosecond */ |
0c530ab8 A |
58 | #define kUP 0x00008000 /* set if (kNumCPUs == 1) */ |
59 | #define kNumCPUs 0x00FF0000 /* number of CPUs (see _NumCPUs() below) */ | |
bd504ef0 | 60 | #define kNumCPUsShift 16 |
6d2010ae | 61 | #define kHasAVX1_0 0x01000000 |
7ddcb079 A |
62 | #define kHasRDRAND 0x02000000 |
63 | #define kHasF16C 0x04000000 | |
64 | #define kHasENFSTRG 0x08000000 | |
bd504ef0 A |
65 | #define kHasFMA 0x10000000 |
66 | #define kHasAVX2_0 0x20000000 | |
67 | #define kHasBMI1 0x40000000 | |
68 | #define kHasBMI2 0x80000000 | |
69 | /* Extending into 64-bits from here: */ | |
70 | #define kHasRTM 0x0000000100000000ULL | |
71 | #define kHasHLE 0x0000000200000000ULL | |
72 | ||
55e303ae | 73 | |
43866e37 | 74 | #ifndef __ASSEMBLER__ |
91447636 A |
75 | #include <sys/cdefs.h> |
76 | ||
77 | __BEGIN_DECLS | |
bd504ef0 | 78 | extern uint64_t _get_cpu_capabilities( void ); |
91447636 | 79 | __END_DECLS |
55e303ae A |
80 | |
81 | inline static | |
82 | int _NumCPUs( void ) | |
83 | { | |
bd504ef0 | 84 | return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift; |
55e303ae A |
85 | } |
86 | ||
87 | #endif /* __ASSEMBLER__ */ | |
88 | ||
6d2010ae A |
89 | /* The following macro is used to generate the 64-bit commpage address for a given |
90 | * routine, based on its 32-bit address. This is used in the kernel to compile | |
91 | * the 64-bit commpage. Since the kernel can be a 32-bit object, cpu_capabilities.h | |
92 | * only defines the 32-bit address. | |
93 | */ | |
94 | #define _COMM_PAGE_32_TO_64( ADDRESS ) ( ADDRESS + _COMM_PAGE64_START_ADDRESS - _COMM_PAGE32_START_ADDRESS ) | |
95 | ||
55e303ae A |
96 | |
97 | /* | |
98 | * The shared kernel/user "comm page(s)": | |
99 | * | |
0c530ab8 A |
100 | * The last several pages of every address space are reserved for the kernel/user |
101 | * "comm area". During system initialization, the kernel populates the comm pages with | |
55e303ae A |
102 | * code customized for the particular processor and platform. |
103 | * | |
0c530ab8 | 104 | * Because Mach VM cannot map the last page of an address space, we don't use it. |
55e303ae A |
105 | */ |
106 | ||
316670eb | 107 | #define _COMM_PAGE32_AREA_LENGTH ( 1 * 4096 ) /* reserved length of entire comm area */ |
6d2010ae A |
108 | #define _COMM_PAGE32_BASE_ADDRESS ( 0xffff0000 ) /* base address of allocated memory */ |
109 | #define _COMM_PAGE32_START_ADDRESS ( _COMM_PAGE32_BASE_ADDRESS ) /* address traditional commpage code starts on */ | |
316670eb | 110 | #define _COMM_PAGE32_AREA_USED ( 1 * 4096 ) /* this is the amt actually allocated */ |
6d2010ae | 111 | #define _COMM_PAGE32_SIGS_OFFSET 0x8000 /* offset to routine signatures */ |
0c530ab8 | 112 | |
316670eb | 113 | #define _COMM_PAGE64_AREA_LENGTH ( 1 * 4096 ) /* reserved length of entire comm area (2MB) */ |
6d2010ae A |
114 | #ifdef __ASSEMBLER__ |
115 | #define _COMM_PAGE64_BASE_ADDRESS ( 0x00007fffffe00000 ) /* base address of allocated memory */ | |
116 | #else /* __ASSEMBLER__ */ | |
117 | #define _COMM_PAGE64_BASE_ADDRESS ( 0x00007fffffe00000ULL ) /* base address of allocated memory */ | |
118 | #endif /* __ASSEMBLER__ */ | |
119 | #define _COMM_PAGE64_START_ADDRESS ( _COMM_PAGE64_BASE_ADDRESS ) /* address traditional commpage code starts on */ | |
316670eb | 120 | #define _COMM_PAGE64_AREA_USED ( 1 * 4096 ) /* this is the amt actually populated */ |
0c530ab8 | 121 | |
2d21ac55 A |
122 | /* no need for an Objective-C area on Intel */ |
123 | #define _COMM_PAGE32_OBJC_SIZE 0ULL | |
124 | #define _COMM_PAGE32_OBJC_BASE 0ULL | |
125 | #define _COMM_PAGE64_OBJC_SIZE 0ULL | |
126 | #define _COMM_PAGE64_OBJC_BASE 0ULL | |
0c530ab8 | 127 | |
b0d623f7 A |
128 | #ifdef KERNEL_PRIVATE |
129 | ||
130 | /* Inside the kernel, comm page addresses are absolute addresses | |
131 | * assuming they are a part of the 32-bit commpage. They may | |
132 | * be mapped somewhere else, especially for the 64-bit commpage. | |
133 | */ | |
134 | #define _COMM_PAGE_START_ADDRESS _COMM_PAGE32_START_ADDRESS | |
135 | #define _COMM_PAGE_SIGS_OFFSET _COMM_PAGE32_SIGS_OFFSET | |
136 | ||
137 | #else /* !KERNEL_PRIVATE */ | |
138 | ||
0c530ab8 A |
139 | #if defined(__i386__) |
140 | ||
141 | #define _COMM_PAGE_AREA_LENGTH _COMM_PAGE32_AREA_LENGTH | |
142 | #define _COMM_PAGE_BASE_ADDRESS _COMM_PAGE32_BASE_ADDRESS | |
143 | #define _COMM_PAGE_START_ADDRESS _COMM_PAGE32_START_ADDRESS | |
144 | #define _COMM_PAGE_AREA_USED _COMM_PAGE32_AREA_USED | |
b0d623f7 | 145 | #define _COMM_PAGE_SIGS_OFFSET _COMM_PAGE32_SIGS_OFFSET |
0c530ab8 A |
146 | |
147 | #elif defined(__x86_64__) | |
148 | ||
149 | #define _COMM_PAGE_AREA_LENGTH _COMM_PAGE64_AREA_LENGTH | |
150 | #define _COMM_PAGE_BASE_ADDRESS _COMM_PAGE64_BASE_ADDRESS | |
151 | #define _COMM_PAGE_START_ADDRESS _COMM_PAGE64_START_ADDRESS | |
152 | #define _COMM_PAGE_AREA_USED _COMM_PAGE64_AREA_USED | |
153 | ||
154 | #else | |
155 | #error architecture not supported | |
156 | #endif | |
55e303ae | 157 | |
b0d623f7 A |
158 | #endif /* !KERNEL_PRIVATE */ |
159 | ||
55e303ae | 160 | /* data in the comm page */ |
43866e37 | 161 | |
bd504ef0 A |
162 | #define _COMM_PAGE_SIGNATURE (_COMM_PAGE_START_ADDRESS+0x000) /* first 16 bytes are a signature */ |
163 | #define _COMM_PAGE_SIGNATURELEN (0x10) | |
164 | #define _COMM_PAGE_CPU_CAPABILITIES64 (_COMM_PAGE_START_ADDRESS+0x010) /* uint64_t _cpu_capabilities */ | |
165 | #define _COMM_PAGE_UNUSED (_COMM_PAGE_START_ADDRESS+0x018) /* 6 unused bytes */ | |
0c530ab8 | 166 | #define _COMM_PAGE_VERSION (_COMM_PAGE_START_ADDRESS+0x01E) /* 16-bit version# */ |
bd504ef0 | 167 | #define _COMM_PAGE_THIS_VERSION 13 /* in ver 13, _COMM_PAGE_NT_SHIFT defaults to 0 (was 32) */ |
55e303ae | 168 | |
bd504ef0 | 169 | #define _COMM_PAGE_CPU_CAPABILITIES (_COMM_PAGE_START_ADDRESS+0x020) /* uint32_t _cpu_capabilities (retained for compatibility) */ |
6d2010ae | 170 | #define _COMM_PAGE_NCPUS (_COMM_PAGE_START_ADDRESS+0x022) /* uint8_t number of configured CPUs (hw.logicalcpu at boot time) */ |
bd504ef0 | 171 | #define _COMM_PAGE_UNUSED0 (_COMM_PAGE_START_ADDRESS+0x024) /* 2 unused bytes, previouly reserved for expansion of cpu_capabilities */ |
0c530ab8 A |
172 | #define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_START_ADDRESS+0x026) /* uint16_t cache line size */ |
173 | ||
2d21ac55 | 174 | #define _COMM_PAGE_SCHED_GEN (_COMM_PAGE_START_ADDRESS+0x028) /* uint32_t scheduler generation number (count of pre-emptions) */ |
b0d623f7 A |
175 | #define _COMM_PAGE_MEMORY_PRESSURE (_COMM_PAGE_START_ADDRESS+0x02c) /* uint32_t copy of vm_memory_pressure */ |
176 | #define _COMM_PAGE_SPIN_COUNT (_COMM_PAGE_START_ADDRESS+0x030) /* uint32_t max spin count for mutex's */ | |
177 | ||
6d2010ae A |
178 | #define _COMM_PAGE_ACTIVE_CPUS (_COMM_PAGE_START_ADDRESS+0x034) /* uint8_t number of active CPUs (hw.activecpu) */ |
179 | #define _COMM_PAGE_PHYSICAL_CPUS (_COMM_PAGE_START_ADDRESS+0x035) /* uint8_t number of physical CPUs (hw.physicalcpu_max) */ | |
180 | #define _COMM_PAGE_LOGICAL_CPUS (_COMM_PAGE_START_ADDRESS+0x036) /* uint8_t number of logical CPUs (hw.logicalcpu_max) */ | |
181 | #define _COMM_PAGE_UNUSED1 (_COMM_PAGE_START_ADDRESS+0x037) /* 1 unused bytes */ | |
182 | #define _COMM_PAGE_MEMORY_SIZE (_COMM_PAGE_START_ADDRESS+0x038) /* uint64_t max memory size */ | |
b0d623f7 | 183 | |
6d2010ae A |
184 | #define _COMM_PAGE_CPUFAMILY (_COMM_PAGE_START_ADDRESS+0x040) /* uint32_t hw.cpufamily, x86*/ |
185 | #define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x044) /* [0x44,0x50) unused */ | |
b0d623f7 | 186 | |
2d21ac55 | 187 | #define _COMM_PAGE_TIME_DATA_START (_COMM_PAGE_START_ADDRESS+0x050) /* base of offsets below (_NT_SCALE etc) */ |
0c530ab8 A |
188 | #define _COMM_PAGE_NT_TSC_BASE (_COMM_PAGE_START_ADDRESS+0x050) /* used by nanotime() */ |
189 | #define _COMM_PAGE_NT_SCALE (_COMM_PAGE_START_ADDRESS+0x058) /* used by nanotime() */ | |
190 | #define _COMM_PAGE_NT_SHIFT (_COMM_PAGE_START_ADDRESS+0x05c) /* used by nanotime() */ | |
191 | #define _COMM_PAGE_NT_NS_BASE (_COMM_PAGE_START_ADDRESS+0x060) /* used by nanotime() */ | |
2d21ac55 A |
192 | #define _COMM_PAGE_NT_GENERATION (_COMM_PAGE_START_ADDRESS+0x068) /* used by nanotime() */ |
193 | #define _COMM_PAGE_GTOD_GENERATION (_COMM_PAGE_START_ADDRESS+0x06c) /* used by gettimeofday() */ | |
194 | #define _COMM_PAGE_GTOD_NS_BASE (_COMM_PAGE_START_ADDRESS+0x070) /* used by gettimeofday() */ | |
195 | #define _COMM_PAGE_GTOD_SEC_BASE (_COMM_PAGE_START_ADDRESS+0x078) /* used by gettimeofday() */ | |
196 | ||
316670eb A |
197 | #define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0xfff) /* end of common page */ |
198 | ||
2d21ac55 A |
199 | /* Warning: kernel commpage.h has a matching c typedef for the following. They must be kept in sync. */ |
200 | /* These offsets are from _COMM_PAGE_TIME_DATA_START */ | |
0c530ab8 | 201 | |
2d21ac55 | 202 | #define _NT_TSC_BASE 0 |
0c530ab8 A |
203 | #define _NT_SCALE 8 |
204 | #define _NT_SHIFT 12 | |
205 | #define _NT_NS_BASE 16 | |
2d21ac55 A |
206 | #define _NT_GENERATION 24 |
207 | #define _GTOD_GENERATION 28 | |
208 | #define _GTOD_NS_BASE 32 | |
209 | #define _GTOD_SEC_BASE 40 | |
6601e61a | 210 | |
0c530ab8 | 211 | /* jump table (jmp to this address, which may be a branch to the actual code somewhere else) */ |
b0d623f7 A |
212 | /* When new jump table entries are added, corresponding symbols should be added below */ |
213 | /* New slots should be allocated with at least 16-byte alignment. Some like bcopy require */ | |
214 | /* 32-byte alignment, and should be aligned as such in the assembly source before they are relocated */ | |
316670eb A |
215 | #define _COMM_PAGE_TEXT_START (_COMM_PAGE_START_ADDRESS+0x1000) |
216 | #define _COMM_PAGE32_TEXT_START (_COMM_PAGE32_BASE_ADDRESS+0x1000) /* start of text section */ | |
217 | #define _COMM_PAGE64_TEXT_START (_COMM_PAGE64_BASE_ADDRESS+0x1000) | |
218 | #define _COMM_PAGE_TEXT_AREA_USED ( 1 * 4096 ) | |
219 | #define _COMM_PAGE_TEXT_AREA_LENGTH ( 1 * 4096 ) | |
220 | #define _PFZ32_SLIDE_RANGE ( 14 ) /* pages between 0xfffff000 and _COMM_PAGE32_TEXT_START */ | |
221 | #define _PFZ64_SLIDE_RANGE ( 510 ) /* pages between 0x00007ffffffff000 and _COMM_PAGE64_TEXT_START */ | |
222 | ||
223 | /* setup start offset in the commpage text region for each jump table entry | |
224 | * the Comm Page Offset is shortened to _COMM_TEXT_[label]_OFFSET | |
225 | */ | |
0c530ab8 | 226 | |
316670eb A |
227 | #define _COMM_TEXT_PREEMPT_OFFSET (0x5a0) /* called from withing pfz */ |
228 | #define _COMM_TEXT_BACKOFF_OFFSET (0x600) /* called from PFZ */ | |
229 | #define _COMM_TEXT_PFZ_START_OFFSET (0xc00) /* offset for Preemption Free Zone */ | |
230 | #define _COMM_TEXT_PFZ_ENQUEUE_OFFSET (0xc00) /* internal FIFO enqueue */ | |
231 | #define _COMM_TEXT_PFZ_DEQUEUE_OFFSET (0xc80) /* internal FIFO dequeue */ | |
232 | #define _COMM_TEXT_PFZ_MUTEX_LOCK_OFFSET (0xd00) /* internal pthread_mutex_lock() */ | |
233 | #define _COMM_TEXT_UNUSED_OFFSET (0xd80) /* end of routines in text page */ | |
234 | #define _COMM_TEXT_PFZ_END_OFFSET (0xfff) /* offset for end of PFZ */ | |
b0d623f7 | 235 | |
b0d623f7 | 236 | |
316670eb A |
237 | #define _COMM_PAGE_PREEMPT (_COMM_PAGE_TEXT_START+_COMM_TEXT_PREEMPT_OFFSET) |
238 | #define _COMM_PAGE_BACKOFF (_COMM_PAGE_TEXT_START+_COMM_TEXT_BACKOFF_OFFSET) | |
b0d623f7 | 239 | |
316670eb | 240 | #define _COMM_PAGE_PFZ_START (_COMM_PAGE_TEXT_START+_COMM_PAGE_PFZ_START_OFFSET) |
b0d623f7 | 241 | |
316670eb A |
242 | #define _COMM_PAGE_PFZ_ENQUEUE (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_ENQUEUE_OFFSET) |
243 | #define _COMM_PAGE_PFZ_DEQUEUE (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_DEQUEUE_OFFSET) | |
244 | #define _COMM_PAGE_PFZ_MUTEX_LOCK (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_MUTEX_LOCK_OFFSET) | |
55e303ae | 245 | |
316670eb A |
246 | #define _COMM_PAGE_UNUSED6 (_COMM_PAGE_TEXT_START+_COMM_TEXT_UNUSED_OFFSET) |
247 | #define _COMM_PAGE_PFZ_END (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_END_OFFSET) | |
248 | #define _COMM_PAGE_TEXT_END (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_END_OFFSET) /* end of common text page */ | |
55e303ae | 249 | |
0c530ab8 A |
250 | /* _COMM_PAGE_COMPARE_AND_SWAP{32,64}B are not used on x86 and are |
251 | * maintained here for source compatability. These will be removed at | |
252 | * some point, so don't go relying on them. */ | |
253 | #define _COMM_PAGE_COMPARE_AND_SWAP32B (_COMM_PAGE_START_ADDRESS+0xf80) /* compare-and-swap word w barrier */ | |
254 | #define _COMM_PAGE_COMPARE_AND_SWAP64B (_COMM_PAGE_START_ADDRESS+0xfc0) /* compare-and-swap doubleword w barrier */ | |
55e303ae A |
255 | |
256 | #ifdef __ASSEMBLER__ | |
257 | #ifdef __COMM_PAGE_SYMBOLS | |
258 | ||
259 | #define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \ | |
0c530ab8 | 260 | .org (symbol_address - (_COMM_PAGE_START_ADDRESS & 0xFFFFE000)) ;\ |
55e303ae A |
261 | symbol_name: nop |
262 | ||
0c530ab8 | 263 | .text /* Required to make a well behaved symbol file */ |
55e303ae | 264 | |
6d2010ae | 265 | CREATE_COMM_PAGE_SYMBOL(___preempt, _COMM_PAGE_PREEMPT) |
b0d623f7 | 266 | CREATE_COMM_PAGE_SYMBOL(___backoff, _COMM_PAGE_BACKOFF) |
b0d623f7 A |
267 | CREATE_COMM_PAGE_SYMBOL(___pfz_enqueue, _COMM_PAGE_PFZ_ENQUEUE) |
268 | CREATE_COMM_PAGE_SYMBOL(___pfz_dequeue, _COMM_PAGE_PFZ_DEQUEUE) | |
269 | CREATE_COMM_PAGE_SYMBOL(___pfz_mutex_lock, _COMM_PAGE_PFZ_MUTEX_LOCK) | |
55e303ae A |
270 | CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END) |
271 | ||
0c530ab8 A |
272 | .data /* Required to make a well behaved symbol file */ |
273 | .long 0 /* Required to make a well behaved symbol file */ | |
55e303ae A |
274 | |
275 | #endif /* __COMM_PAGE_SYMBOLS */ | |
276 | #endif /* __ASSEMBLER__ */ | |
43866e37 | 277 | |
43866e37 | 278 | #endif /* _I386_CPU_CAPABILITIES_H */ |
91447636 | 279 | #endif /* PRIVATE */ |