X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/8f6c56a50524aa785f7e596d52dddfb331e18961..0c530ab8987f0ae6a1a3d9284f40182b88852816:/osfmk/i386/cpu_capabilities.h diff --git a/osfmk/i386/cpu_capabilities.h b/osfmk/i386/cpu_capabilities.h index 40dafc33c..6270145f1 100644 --- a/osfmk/i386/cpu_capabilities.h +++ b/osfmk/i386/cpu_capabilities.h @@ -1,29 +1,23 @@ /* - * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2003-2006 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 @@ -35,10 +29,7 @@ #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: */ @@ -47,15 +38,18 @@ #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 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 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 @@ -76,92 +70,137 @@ int _NumCPUs( void ) /* * 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 + * 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 * 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. + * Because Mach VM cannot map the last page of an address space, we don't use it. */ -#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 +#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 /* 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_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_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_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_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x050) // 16 unused bytes +#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_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() +#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 - /* jump table (bla to this address, which may be a branch to the actual code somewhere else) */ + /* 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) // 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_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_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_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_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_SYSTEM_INTEGRITY (_COMM_PAGE_START_ADDRESS+0x1600) /* system integrity data, 256 bytes */ -#define _COMM_PAGE_NANOTIME (_COMM_PAGE_START_ADDRESS+0xF80) // nanotime() +#define _COMM_PAGE_NANOTIME (_COMM_PAGE_START_ADDRESS+0x1700) /* nanotime() */ -#define _COMM_PAGE_BIGCOPY (_COMM_PAGE_START_ADDRESS+0x1000)// very-long-operand copies +#define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1780) /* end of common page - insert new stuff here */ -#define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1600)// end of common page +/* _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 */ #ifdef __ASSEMBLER__ #ifdef __COMM_PAGE_SYMBOLS #define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \ - .org (symbol_address - (_COMM_PAGE_BASE_ADDRESS & 0xFFFFE000)) ;\ + .org (symbol_address - (_COMM_PAGE_START_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) @@ -185,13 +224,15 @@ 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(___bigcopy, _COMM_PAGE_BIGCOPY) +/* 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(___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__ */