X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4452a7af2eac33dbad800bcc91f2399d62c18f53..6601e61aa18bf4f09af135ff61fc7f4771d23b06:/osfmk/i386/cpu_capabilities.h?ds=sidebyside diff --git a/osfmk/i386/cpu_capabilities.h b/osfmk/i386/cpu_capabilities.h index c7e22b1e3..08d4f0bea 100644 --- a/osfmk/i386/cpu_capabilities.h +++ b/osfmk/i386/cpu_capabilities.h @@ -1,29 +1,23 @@ /* - * Copyright (c) 2003-2006 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved. * - * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ + * @APPLE_LICENSE_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. + * The contents of this file constitute Original Code as defined in and + * are subject to the Apple Public Source License Version 1.1 (the + * "License"). You may not use this file except in compliance with the + * License. Please obtain a copy of the License at + * http://www.apple.com/publicsource and read it before using this file. * - * 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 + * This 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. + * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the + * License for the specific language governing rights and limitations + * under the License. * - * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ + * @APPLE_LICENSE_HEADER_END@ */ #ifdef PRIVATE @@ -35,7 +29,10 @@ #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: */ @@ -44,18 +41,15 @@ #define kHasSSE 0x00000002 #define kHasSSE2 0x00000004 #define kHasSSE3 0x00000008 -#define kCache32 0x00000010 /* cache line size is 32 bytes */ +#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 kHasSupplementalSSE3 0x00000100 -#define kHasMNI kHasSupplementalSSE3 -#define k64Bit 0x00000200 /* processor supports EM64T (not what mode you're running in) */ +#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 kUP 0x00008000 // set if (kNumCPUs == 1) +#define kNumCPUs 0x00FF0000 // number of CPUs (see _NumCPUs() below) -#define kNumCPUsShift 16 /* see _NumCPUs() below */ +#define kNumCPUsShift 16 // see _NumCPUs() below #ifndef __ASSEMBLER__ #include @@ -76,137 +70,92 @@ int _NumCPUs( void ) /* * The shared kernel/user "comm page(s)": * - * The last several pages of every address space are reserved for the kernel/user - * "comm area". During system initialization, the kernel populates the comm pages with + * 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, we don't use it. + * Because Mach VM cannot map the last page of an address space, the max length of + * the comm area is seven pages. */ -#define _COMM_PAGE32_AREA_LENGTH ( 19 * 4096 ) /* reserved length of entire comm area */ -#define _COMM_PAGE32_BASE_ADDRESS ( -20 * 4096 ) /* base address of allocated memory */ -#define _COMM_PAGE32_START_ADDRESS ( -16 * 4096 ) /* address traditional commpage code starts on */ -#define _COMM_PAGE32_AREA_USED ( 19 * 4096 ) /* this is the amt actually allocated */ - -#define _COMM_PAGE64_AREA_LENGTH ( 2 * 1024 * 1024 ) /* reserved length of entire comm area (2MB) */ -#define _COMM_PAGE64_BASE_ADDRESS ( 0x00007fffffe00000ULL ) /* base address of allocated memory */ -#define _COMM_PAGE64_START_ADDRESS ( _COMM_PAGE64_BASE_ADDRESS ) /* address traditional commpage code starts on */ -#define _COMM_PAGE64_AREA_USED ( 2 * 4096 ) /* this is the amt actually populated */ - - -#if defined(__i386__) - -#define _COMM_PAGE_AREA_LENGTH _COMM_PAGE32_AREA_LENGTH -#define _COMM_PAGE_BASE_ADDRESS _COMM_PAGE32_BASE_ADDRESS -#define _COMM_PAGE_START_ADDRESS _COMM_PAGE32_START_ADDRESS -#define _COMM_PAGE_AREA_USED _COMM_PAGE32_AREA_USED -#define _COMM_PAGE_SIGS_OFFSET 0x8000 /* offset to routine signatures */ - -#elif defined(__x86_64__) - -#define _COMM_PAGE_AREA_LENGTH _COMM_PAGE64_AREA_LENGTH -#define _COMM_PAGE_BASE_ADDRESS _COMM_PAGE64_BASE_ADDRESS -#define _COMM_PAGE_START_ADDRESS _COMM_PAGE64_START_ADDRESS -#define _COMM_PAGE_AREA_USED _COMM_PAGE64_AREA_USED - -#else -#error architecture not supported -#endif +#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 6 /* version of the commarea format */ +#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+0x022) /* uint8_t number of configured CPUs */ -#define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_START_ADDRESS+0x026) /* uint16_t cache line size */ - -#define _COMM_PAGE_UNUSED1 (_COMM_PAGE_START_ADDRESS+0x028) /* 24 unused bytes */ +#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 -#if defined(__i386__) /* following are not defined in 64-bit */ -#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 */ -#else -#define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x040) /* 16 unused bytes */ -#endif - -#define _COMM_PAGE_NT_TSC_BASE (_COMM_PAGE_START_ADDRESS+0x050) /* used by nanotime() */ -#define _COMM_PAGE_NT_SCALE (_COMM_PAGE_START_ADDRESS+0x058) /* used by nanotime() */ -#define _COMM_PAGE_NT_SHIFT (_COMM_PAGE_START_ADDRESS+0x05c) /* used by nanotime() */ -#define _COMM_PAGE_NT_NS_BASE (_COMM_PAGE_START_ADDRESS+0x060) /* used by nanotime() */ +#define _COMM_PAGE_UNUSED1 (_COMM_PAGE_START_ADDRESS+0x030) // 16 unused bytes -#define _COMM_PAGE_TIMEBASE (_COMM_PAGE_START_ADDRESS+0x068) /* used by gettimeofday() */ -#define _COMM_PAGE_TIMESTAMP (_COMM_PAGE_START_ADDRESS+0x070) /* used by gettimeofday() */ -#define _COMM_PAGE_TIMEENABLE (_COMM_PAGE_START_ADDRESS+0x078) /* used by gettimeofday() */ - -#define _NT_TSC_BASE 0 /* offsets into nanotime data */ -#define _NT_SCALE 8 -#define _NT_SHIFT 12 -#define _NT_NS_BASE 16 -#define _TIMEBASE 0 /* offsets into gettimeofday data */ -#define _TIMESTAMP 8 -#define _TIMEENABLE 16 +#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 - /* jump table (jmp 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) /* memory barrier */ -#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_UNUSED3 (_COMM_PAGE_START_ADDRESS+0x1e0) /* 32 unused bytes */ - -#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_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x050) // 16 unused bytes -#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_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_OLD_NANOTIME (_COMM_PAGE_START_ADDRESS+0xf80) /* old nanotime location (deprecated) */ -#define _COMM_PAGE_MEMSET_PATTERN (_COMM_PAGE_START_ADDRESS+0x1000) /* used by nonzero memset() */ -#define _COMM_PAGE_LONGCOPY (_COMM_PAGE_START_ADDRESS+0x1200) /* used by bcopy() for very long operands */ +#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_SYSTEM_INTEGRITY (_COMM_PAGE_START_ADDRESS+0x1600) /* system integrity data, 256 bytes */ +#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+0x1700) /* nanotime() */ +#define _COMM_PAGE_NANOTIME (_COMM_PAGE_START_ADDRESS+0xF80) // nanotime() -#define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1780) /* end of common page - insert new stuff here */ +#define _COMM_PAGE_BIGCOPY (_COMM_PAGE_START_ADDRESS+0x1000)// very-long-operand copies -/* _COMM_PAGE_COMPARE_AND_SWAP{32,64}B are not used on x86 and are - * maintained here for source compatability. These will be removed at - * some point, so don't go relying on them. */ -#define _COMM_PAGE_COMPARE_AND_SWAP32B (_COMM_PAGE_START_ADDRESS+0xf80) /* compare-and-swap word w barrier */ -#define _COMM_PAGE_COMPARE_AND_SWAP64B (_COMM_PAGE_START_ADDRESS+0xfc0) /* compare-and-swap doubleword w barrier */ +#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_START_ADDRESS & 0xFFFFE000)) ;\ + .org (symbol_address - (_COMM_PAGE_BASE_ADDRESS & 0xFFFFE000)) ;\ symbol_name: nop - .text /* Required to make a well behaved symbol file */ + .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) @@ -230,15 +179,13 @@ symbol_name: nop 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(___old_nanotime, _COMM_PAGE_OLD_NANOTIME) - CREATE_COMM_PAGE_SYMBOL(___memset_pattern, _COMM_PAGE_MEMSET_PATTERN) - CREATE_COMM_PAGE_SYMBOL(___longcopy, _COMM_PAGE_LONGCOPY) +// 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 */ + .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__ */