Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/osfmk/i386/machine_routines.h
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1 /* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_LICENSE_HEADER_START@ 5 * 6 * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. 7 * 8 * This file contains Original Code and/or Modifications of Original Code 9 * as defined in and that are subject to the Apple Public Source License 10 * Version 2.0 (the 'License'). You may not use this file except in 11 * compliance with the License. Please obtain a copy of the License at 12 * http://www.opensource.apple.com/apsl/ and read it before using this 13 * file. 14 * 15 * The Original Code and all software distributed under the License are 16 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 17 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 18 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 20 * Please see the License for the specific language governing rights and 21 * limitations under the License. 22 * 23 * @APPLE_LICENSE_HEADER_END@ 24 */ 25 /* 26 * @OSF_COPYRIGHT@ 27 */ 28 29 #ifndef _I386_MACHINE_ROUTINES_H_ 30 #define _I386_MACHINE_ROUTINES_H_ 31 32 #include <mach/mach_types.h> 33 #include <mach/boolean.h> 34 #include <kern/kern_types.h> 35 #include <pexpert/pexpert.h> 36 37 #include <sys/appleapiopts.h> 38 39 /* Interrupt handling */ 40 41 /* Initialize Interrupts */ 42 void ml_init_interrupt(void); 43 44 /* Get Interrupts Enabled */ 45 boolean_t ml_get_interrupts_enabled(void); 46 47 /* Set Interrupts Enabled */ 48 boolean_t ml_set_interrupts_enabled(boolean_t enable); 49 50 /* Check if running at interrupt context */ 51 boolean_t ml_at_interrupt_context(void); 52 53 /* Generate a fake interrupt */ 54 void ml_cause_interrupt(void); 55 56 void ml_get_timebase(unsigned long long *timestamp); 57 58 /* Type for the Time Base Enable function */ 59 typedef void (*time_base_enable_t)(cpu_id_t cpu_id, boolean_t enable); 60 61 /* Type for the IPI Hander */ 62 typedef void (*ipi_handler_t)(void); 63 64 /* Struct for ml_processor_register */ 65 struct ml_processor_info { 66 cpu_id_t cpu_id; 67 boolean_t boot_cpu; 68 vm_offset_t start_paddr; 69 boolean_t supports_nap; 70 unsigned long l2cr_value; 71 time_base_enable_t time_base_enable; 72 }; 73 74 typedef struct ml_processor_info ml_processor_info_t; 75 76 /* Register a processor */ 77 kern_return_t ml_processor_register( 78 cpu_id_t cpu_id, 79 uint32_t lapic_id, 80 processor_t *processor, 81 ipi_handler_t *ipi_handler, 82 boolean_t boot_cpu); 83 84 /* Initialize Interrupts */ 85 void ml_install_interrupt_handler( 86 void *nub, 87 int source, 88 void *target, 89 IOInterruptHandler handler, 90 void *refCon); 91 92 #ifdef __APPLE_API_UNSTABLE 93 vm_offset_t 94 ml_static_ptovirt( 95 vm_offset_t); 96 97 /* PCI config cycle probing */ 98 boolean_t ml_probe_read( 99 vm_offset_t paddr, 100 unsigned int *val); 101 boolean_t ml_probe_read_64( 102 addr64_t paddr, 103 unsigned int *val); 104 105 /* Read physical address byte */ 106 unsigned int ml_phys_read_byte( 107 vm_offset_t paddr); 108 unsigned int ml_phys_read_byte_64( 109 addr64_t paddr); 110 111 /* Read physical address half word */ 112 unsigned int ml_phys_read_half( 113 vm_offset_t paddr); 114 unsigned int ml_phys_read_half_64( 115 addr64_t paddr); 116 117 /* Read physical address word*/ 118 unsigned int ml_phys_read( 119 vm_offset_t paddr); 120 unsigned int ml_phys_read_64( 121 addr64_t paddr); 122 unsigned int ml_phys_read_word( 123 vm_offset_t paddr); 124 unsigned int ml_phys_read_word_64( 125 addr64_t paddr); 126 127 /* Read physical address double word */ 128 unsigned long long ml_phys_read_double( 129 vm_offset_t paddr); 130 unsigned long long ml_phys_read_double_64( 131 addr64_t paddr); 132 133 /* Write physical address byte */ 134 void ml_phys_write_byte( 135 vm_offset_t paddr, unsigned int data); 136 void ml_phys_write_byte_64( 137 addr64_t paddr, unsigned int data); 138 139 /* Write physical address half word */ 140 void ml_phys_write_half( 141 vm_offset_t paddr, unsigned int data); 142 void ml_phys_write_half_64( 143 addr64_t paddr, unsigned int data); 144 145 /* Write physical address word */ 146 void ml_phys_write( 147 vm_offset_t paddr, unsigned int data); 148 void ml_phys_write_64( 149 addr64_t paddr, unsigned int data); 150 void ml_phys_write_word( 151 vm_offset_t paddr, unsigned int data); 152 void ml_phys_write_word_64( 153 addr64_t paddr, unsigned int data); 154 155 /* Write physical address double word */ 156 void ml_phys_write_double( 157 vm_offset_t paddr, unsigned long long data); 158 void ml_phys_write_double_64( 159 addr64_t paddr, unsigned long long data); 160 161 void ml_static_mfree( 162 vm_offset_t, 163 vm_size_t); 164 165 /* virtual to physical on wired pages */ 166 vm_offset_t ml_vtophys( 167 vm_offset_t vaddr); 168 169 /* Struct for ml_cpu_get_info */ 170 struct ml_cpu_info { 171 unsigned long vector_unit; 172 unsigned long cache_line_size; 173 unsigned long l1_icache_size; 174 unsigned long l1_dcache_size; 175 unsigned long l2_settings; 176 unsigned long l2_cache_size; 177 unsigned long l3_settings; 178 unsigned long l3_cache_size; 179 }; 180 181 typedef struct ml_cpu_info ml_cpu_info_t; 182 183 /* Get processor info */ 184 void ml_cpu_get_info(ml_cpu_info_t *cpu_info); 185 186 #endif /* __APPLE_API_UNSTABLE */ 187 188 #ifdef __APPLE_API_PRIVATE 189 #if defined(PEXPERT_KERNEL_PRIVATE) || defined(MACH_KERNEL_PRIVATE) 190 /* IO memory map services */ 191 192 /* Map memory map IO space */ 193 vm_offset_t ml_io_map( 194 vm_offset_t phys_addr, 195 vm_size_t size); 196 197 /* boot memory allocation */ 198 vm_offset_t ml_static_malloc( 199 vm_size_t size); 200 201 #endif /* PEXPERT_KERNEL_PRIVATE || MACH_KERNEL_PRIVATE */ 202 203 /* Zero bytes starting at a physical address */ 204 void bzero_phys( 205 addr64_t phys_address, 206 uint32_t length); 207 208 #ifdef MACH_KERNEL_PRIVATE 209 210 void machine_idle(void); 211 212 void machine_signal_idle( 213 processor_t processor); 214 #endif /* MACH_KERNEL_PRIVATE */ 215 216 void ml_thread_policy( 217 thread_t thread, 218 unsigned policy_id, 219 unsigned policy_info); 220 221 #define MACHINE_GROUP 0x00000001 222 #define MACHINE_NETWORK_GROUP 0x10000000 223 #define MACHINE_NETWORK_WORKLOOP 0x00000001 224 #define MACHINE_NETWORK_NETISR 0x00000002 225 226 /* Initialize the maximum number of CPUs */ 227 void ml_init_max_cpus( 228 unsigned long max_cpus); 229 230 /* Return the maximum number of CPUs set by ml_init_max_cpus() */ 231 int ml_get_max_cpus( 232 void); 233 234 #endif /* __APPLE_API_PRIVATE */ 235 236 #endif /* _I386_MACHINE_ROUTINES_H_ */
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