/* * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_OSREFERENCE_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_LICENSE_OSREFERENCE_HEADER_END@ */ #ifdef PRIVATE #ifndef _I386_CPU_CAPABILITIES_H #define _I386_CPU_CAPABILITIES_H #ifndef __ASSEMBLER__ #include #endif /* * This is the authoritative way to determine from user mode what * implementation-specific processor features are available. * This API only supported for Apple internal use. * */ /* Bit definitions for _cpu_capabilities: */ #define kHasMMX 0x00000001 #define kHasSSE 0x00000002 #define kHasSSE2 0x00000004 #define kHasSSE3 0x00000008 #define kCache32 0x00000010 // cache line size is 32 bytes #define kCache64 0x00000020 #define kCache128 0x00000040 #define kFastThreadLocalStorage 0x00000080 // TLS ptr is kept in a user-mode-readable register #define kUP 0x00008000 // set if (kNumCPUs == 1) #define kNumCPUs 0x00FF0000 // number of CPUs (see _NumCPUs() below) #define kNumCPUsShift 16 // see _NumCPUs() below #ifndef __ASSEMBLER__ #include __BEGIN_DECLS extern int _get_cpu_capabilities( void ); __END_DECLS inline static int _NumCPUs( void ) { return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift; } #endif /* __ASSEMBLER__ */ /* * The shared kernel/user "comm page(s)": * * The last eight pages of every address space are reserved for the kernel/user * "comm area". During system initialization, the kernel populates the comm page with * code customized for the particular processor and platform. * * Because Mach VM cannot map the last page of an address space, the max length of * the comm area is seven pages. */ #define _COMM_PAGE_AREA_LENGTH (19*4096) // reserved length of entire comm area #define _COMM_PAGE_BASE_ADDRESS (-20*4096) // VM_MAX_ADDRESS-_COMM_PAGE_AREA_LENGTH #define _COMM_PAGE_START_ADDRESS (-16*4096) // VM_MAX_ADDRESS-_COMM_PAGE_AREA_LENGTH #define _COMM_PAGE_SIGS_OFFSET 0x8000 // offset to routine signatures /* data in the comm page */ #define _COMM_PAGE_SIGNATURE (_COMM_PAGE_START_ADDRESS+0x000) // first few bytes are a signature #define _COMM_PAGE_VERSION (_COMM_PAGE_START_ADDRESS+0x01E) // 16-bit version# #define _COMM_PAGE_THIS_VERSION 3 // version of the commarea format #define _COMM_PAGE_CPU_CAPABILITIES (_COMM_PAGE_START_ADDRESS+0x020) // uint32_t _cpu_capabilities #define _COMM_PAGE_NCPUS (_COMM_PAGE_START_ADDRESS+0x021) // uint8_t number of configured CPUs #define _COMM_PAGE_VECTOR_FLAVOR (_COMM_PAGE_START_ADDRESS+0x024) // uint8_t SSE/SSE2/SSE3 #define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_START_ADDRESS+0x026) // uint16_t cache line size #define _COMM_PAGE_UNUSED1 (_COMM_PAGE_START_ADDRESS+0x030) // 16 unused bytes #define _COMM_PAGE_2_TO_52 (_COMM_PAGE_START_ADDRESS+0x040) // double float constant 2**52 #define _COMM_PAGE_10_TO_6 (_COMM_PAGE_START_ADDRESS+0x048) // double float constant 10**6 #define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x050) // 16 unused bytes #define _COMM_PAGE_TIMEBASE (_COMM_PAGE_START_ADDRESS+0x060) // used by gettimeofday() #define _COMM_PAGE_TIMESTAMP (_COMM_PAGE_START_ADDRESS+0x068) // used by gettimeofday() #define _COMM_PAGE_SEC_PER_TICK (_COMM_PAGE_START_ADDRESS+0x070) // used by gettimeofday() /* jump table (bla to this address, which may be a branch to the actual code somewhere else) */ /* When new jump table entries are added, corresponding symbols should be added below */ #define _COMM_PAGE_COMPARE_AND_SWAP32 (_COMM_PAGE_START_ADDRESS+0x080) // compare-and-swap word #define _COMM_PAGE_COMPARE_AND_SWAP64 (_COMM_PAGE_START_ADDRESS+0x0c0) // compare-and-swap doubleword #define _COMM_PAGE_ENQUEUE (_COMM_PAGE_START_ADDRESS+0x100) // enqueue #define _COMM_PAGE_DEQUEUE (_COMM_PAGE_START_ADDRESS+0x140) // dequeue #define _COMM_PAGE_MEMORY_BARRIER (_COMM_PAGE_START_ADDRESS+0x180) // add atomic doubleword #define _COMM_PAGE_ATOMIC_ADD32 (_COMM_PAGE_START_ADDRESS+0x1a0) // add atomic word #define _COMM_PAGE_ATOMIC_ADD64 (_COMM_PAGE_START_ADDRESS+0x1c0) // add atomic doubleword #define _COMM_PAGE_NANOTIME_INFO (_COMM_PAGE_START_ADDRESS+0x1e0) // 32 bytes used by nanotime() #define _COMM_PAGE_ABSOLUTE_TIME (_COMM_PAGE_START_ADDRESS+0x200) // mach_absolute_time() #define _COMM_PAGE_SPINLOCK_TRY (_COMM_PAGE_START_ADDRESS+0x220) // spinlock_try() #define _COMM_PAGE_SPINLOCK_LOCK (_COMM_PAGE_START_ADDRESS+0x260) // spinlock_lock() #define _COMM_PAGE_SPINLOCK_UNLOCK (_COMM_PAGE_START_ADDRESS+0x2a0) // spinlock_unlock() #define _COMM_PAGE_PTHREAD_GETSPECIFIC (_COMM_PAGE_START_ADDRESS+0x2c0) // pthread_getspecific() #define _COMM_PAGE_GETTIMEOFDAY (_COMM_PAGE_START_ADDRESS+0x2e0) // used by gettimeofday() #define _COMM_PAGE_FLUSH_DCACHE (_COMM_PAGE_START_ADDRESS+0x4e0) // sys_dcache_flush() #define _COMM_PAGE_FLUSH_ICACHE (_COMM_PAGE_START_ADDRESS+0x520) // sys_icache_invalidate() #define _COMM_PAGE_PTHREAD_SELF (_COMM_PAGE_START_ADDRESS+0x580) // pthread_self() #define _COMM_PAGE_UNUSED4 (_COMM_PAGE_START_ADDRESS+0x5a0) // 32 unused bytes #define _COMM_PAGE_RELINQUISH (_COMM_PAGE_START_ADDRESS+0x5c0) // used by spinlocks #define _COMM_PAGE_BTS (_COMM_PAGE_START_ADDRESS+0x5e0) // bit test-and-set #define _COMM_PAGE_BTC (_COMM_PAGE_START_ADDRESS+0x5f0) // bit test-and-clear #define _COMM_PAGE_BZERO (_COMM_PAGE_START_ADDRESS+0x600) // bzero() #define _COMM_PAGE_BCOPY (_COMM_PAGE_START_ADDRESS+0x780) // bcopy() #define _COMM_PAGE_MEMCPY (_COMM_PAGE_START_ADDRESS+0x7a0) // memcpy() #define _COMM_PAGE_MEMMOVE (_COMM_PAGE_START_ADDRESS+0x7a0) // memmove() #define _COMM_PAGE_NANOTIME (_COMM_PAGE_START_ADDRESS+0xF80) // nanotime() #define _COMM_PAGE_BIGCOPY (_COMM_PAGE_START_ADDRESS+0x1000)// very-long-operand copies #define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1600)// end of common page #ifdef __ASSEMBLER__ #ifdef __COMM_PAGE_SYMBOLS #define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \ .org (symbol_address - (_COMM_PAGE_BASE_ADDRESS & 0xFFFFE000)) ;\ symbol_name: nop .text // Required to make a well behaved symbol file CREATE_COMM_PAGE_SYMBOL(___compare_and_swap32, _COMM_PAGE_COMPARE_AND_SWAP32) CREATE_COMM_PAGE_SYMBOL(___compare_and_swap64, _COMM_PAGE_COMPARE_AND_SWAP64) CREATE_COMM_PAGE_SYMBOL(___atomic_enqueue, _COMM_PAGE_ENQUEUE) CREATE_COMM_PAGE_SYMBOL(___atomic_dequeue, _COMM_PAGE_DEQUEUE) CREATE_COMM_PAGE_SYMBOL(___memory_barrier, _COMM_PAGE_MEMORY_BARRIER) CREATE_COMM_PAGE_SYMBOL(___atomic_add32, _COMM_PAGE_ATOMIC_ADD32) CREATE_COMM_PAGE_SYMBOL(___atomic_add64, _COMM_PAGE_ATOMIC_ADD64) CREATE_COMM_PAGE_SYMBOL(___mach_absolute_time, _COMM_PAGE_ABSOLUTE_TIME) CREATE_COMM_PAGE_SYMBOL(___spin_lock_try, _COMM_PAGE_SPINLOCK_TRY) CREATE_COMM_PAGE_SYMBOL(___spin_lock, _COMM_PAGE_SPINLOCK_LOCK) CREATE_COMM_PAGE_SYMBOL(___spin_unlock, _COMM_PAGE_SPINLOCK_UNLOCK) CREATE_COMM_PAGE_SYMBOL(___pthread_getspecific, _COMM_PAGE_PTHREAD_GETSPECIFIC) CREATE_COMM_PAGE_SYMBOL(___gettimeofday, _COMM_PAGE_GETTIMEOFDAY) CREATE_COMM_PAGE_SYMBOL(___sys_dcache_flush, _COMM_PAGE_FLUSH_DCACHE) CREATE_COMM_PAGE_SYMBOL(___sys_icache_invalidate, _COMM_PAGE_FLUSH_ICACHE) CREATE_COMM_PAGE_SYMBOL(___pthread_self, _COMM_PAGE_PTHREAD_SELF) CREATE_COMM_PAGE_SYMBOL(___spin_lock_relinquish, _COMM_PAGE_RELINQUISH) CREATE_COMM_PAGE_SYMBOL(___bit_test_and_set, _COMM_PAGE_BTS) CREATE_COMM_PAGE_SYMBOL(___bit_test_and_clear, _COMM_PAGE_BTC) CREATE_COMM_PAGE_SYMBOL(___bzero, _COMM_PAGE_BZERO) CREATE_COMM_PAGE_SYMBOL(___bcopy, _COMM_PAGE_BCOPY) CREATE_COMM_PAGE_SYMBOL(___memcpy, _COMM_PAGE_MEMCPY) // CREATE_COMM_PAGE_SYMBOL(___memmove, _COMM_PAGE_MEMMOVE) CREATE_COMM_PAGE_SYMBOL(___bigcopy, _COMM_PAGE_BIGCOPY) CREATE_COMM_PAGE_SYMBOL(___nanotime, _COMM_PAGE_NANOTIME) CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END) .data // Required to make a well behaved symbol file .long 0 // Required to make a well behaved symbol file #endif /* __COMM_PAGE_SYMBOLS */ #endif /* __ASSEMBLER__ */ #endif /* _I386_CPU_CAPABILITIES_H */ #endif /* PRIVATE */