/* * Copyright (c) 2003-2009 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_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. * * 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_OSREFERENCE_LICENSE_HEADER_END@ */ #ifdef PRIVATE #ifndef _I386_CPU_CAPABILITIES_H #define _I386_CPU_CAPABILITIES_H #ifndef __ASSEMBLER__ #include #endif /* * 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 kHasSupplementalSSE3 0x00000100 #define k64Bit 0x00000200 /* processor supports EM64T (not what mode you're running in) */ #define kHasSSE4_1 0x00000400 #define kHasSSE4_2 0x00000800 #define kHasAES 0x00001000 #define kInOrderPipeline 0x00002000 #define kSlow 0x00004000 /* tsc < nanosecond */ #define kUP 0x00008000 /* set if (kNumCPUs == 1) */ #define kNumCPUs 0x00FF0000 /* number of CPUs (see _NumCPUs() below) */ #define kNumCPUsShift 16 #define kHasAVX1_0 0x01000000 #define kHasRDRAND 0x02000000 #define kHasF16C 0x04000000 #define kHasENFSTRG 0x08000000 #define kHasFMA 0x10000000 #define kHasAVX2_0 0x20000000 #define kHasBMI1 0x40000000 #define kHasBMI2 0x80000000 /* Extending into 64-bits from here: */ #define kHasRTM 0x0000000100000000ULL #define kHasHLE 0x0000000200000000ULL #ifndef __ASSEMBLER__ #include __BEGIN_DECLS extern uint64_t _get_cpu_capabilities( void ); __END_DECLS inline static int _NumCPUs( void ) { return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift; } #endif /* __ASSEMBLER__ */ /* The following macro is used to generate the 64-bit commpage address for a given * routine, based on its 32-bit address. This is used in the kernel to compile * the 64-bit commpage. Since the kernel can be a 32-bit object, cpu_capabilities.h * only defines the 32-bit address. */ #define _COMM_PAGE_32_TO_64( ADDRESS ) ( ADDRESS + _COMM_PAGE64_START_ADDRESS - _COMM_PAGE32_START_ADDRESS ) /* * 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 * 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. */ #define _COMM_PAGE32_AREA_LENGTH ( 1 * 4096 ) /* reserved length of entire comm area */ #define _COMM_PAGE32_BASE_ADDRESS ( 0xffff0000 ) /* base address of allocated memory */ #define _COMM_PAGE32_START_ADDRESS ( _COMM_PAGE32_BASE_ADDRESS ) /* address traditional commpage code starts on */ #define _COMM_PAGE32_AREA_USED ( 1 * 4096 ) /* this is the amt actually allocated */ #define _COMM_PAGE32_SIGS_OFFSET 0x8000 /* offset to routine signatures */ #define _COMM_PAGE64_AREA_LENGTH ( 1 * 4096 ) /* reserved length of entire comm area (2MB) */ #ifdef __ASSEMBLER__ #define _COMM_PAGE64_BASE_ADDRESS ( 0x00007fffffe00000 ) /* base address of allocated memory */ #else /* __ASSEMBLER__ */ #define _COMM_PAGE64_BASE_ADDRESS ( 0x00007fffffe00000ULL ) /* base address of allocated memory */ #endif /* __ASSEMBLER__ */ #define _COMM_PAGE64_START_ADDRESS ( _COMM_PAGE64_BASE_ADDRESS ) /* address traditional commpage code starts on */ #define _COMM_PAGE64_AREA_USED ( 1 * 4096 ) /* this is the amt actually populated */ /* no need for an Objective-C area on Intel */ #define _COMM_PAGE32_OBJC_SIZE 0ULL #define _COMM_PAGE32_OBJC_BASE 0ULL #define _COMM_PAGE64_OBJC_SIZE 0ULL #define _COMM_PAGE64_OBJC_BASE 0ULL #ifdef KERNEL_PRIVATE /* Inside the kernel, comm page addresses are absolute addresses * assuming they are a part of the 32-bit commpage. They may * be mapped somewhere else, especially for the 64-bit commpage. */ #define _COMM_PAGE_START_ADDRESS _COMM_PAGE32_START_ADDRESS #define _COMM_PAGE_SIGS_OFFSET _COMM_PAGE32_SIGS_OFFSET #else /* !KERNEL_PRIVATE */ #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 _COMM_PAGE32_SIGS_OFFSET #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 #endif /* !KERNEL_PRIVATE */ /* data in the comm page */ #define _COMM_PAGE_SIGNATURE (_COMM_PAGE_START_ADDRESS+0x000) /* first 16 bytes are a signature */ #define _COMM_PAGE_SIGNATURELEN (0x10) #define _COMM_PAGE_CPU_CAPABILITIES64 (_COMM_PAGE_START_ADDRESS+0x010) /* uint64_t _cpu_capabilities */ #define _COMM_PAGE_UNUSED (_COMM_PAGE_START_ADDRESS+0x018) /* 6 unused bytes */ #define _COMM_PAGE_VERSION (_COMM_PAGE_START_ADDRESS+0x01E) /* 16-bit version# */ #define _COMM_PAGE_THIS_VERSION 13 /* in ver 13, _COMM_PAGE_NT_SHIFT defaults to 0 (was 32) */ #define _COMM_PAGE_CPU_CAPABILITIES (_COMM_PAGE_START_ADDRESS+0x020) /* uint32_t _cpu_capabilities (retained for compatibility) */ #define _COMM_PAGE_NCPUS (_COMM_PAGE_START_ADDRESS+0x022) /* uint8_t number of configured CPUs (hw.logicalcpu at boot time) */ #define _COMM_PAGE_UNUSED0 (_COMM_PAGE_START_ADDRESS+0x024) /* 2 unused bytes, previouly reserved for expansion of cpu_capabilities */ #define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_START_ADDRESS+0x026) /* uint16_t cache line size */ #define _COMM_PAGE_SCHED_GEN (_COMM_PAGE_START_ADDRESS+0x028) /* uint32_t scheduler generation number (count of pre-emptions) */ #define _COMM_PAGE_MEMORY_PRESSURE (_COMM_PAGE_START_ADDRESS+0x02c) /* uint32_t copy of vm_memory_pressure */ #define _COMM_PAGE_SPIN_COUNT (_COMM_PAGE_START_ADDRESS+0x030) /* uint32_t max spin count for mutex's */ #define _COMM_PAGE_ACTIVE_CPUS (_COMM_PAGE_START_ADDRESS+0x034) /* uint8_t number of active CPUs (hw.activecpu) */ #define _COMM_PAGE_PHYSICAL_CPUS (_COMM_PAGE_START_ADDRESS+0x035) /* uint8_t number of physical CPUs (hw.physicalcpu_max) */ #define _COMM_PAGE_LOGICAL_CPUS (_COMM_PAGE_START_ADDRESS+0x036) /* uint8_t number of logical CPUs (hw.logicalcpu_max) */ #define _COMM_PAGE_UNUSED1 (_COMM_PAGE_START_ADDRESS+0x037) /* 1 unused bytes */ #define _COMM_PAGE_MEMORY_SIZE (_COMM_PAGE_START_ADDRESS+0x038) /* uint64_t max memory size */ #define _COMM_PAGE_CPUFAMILY (_COMM_PAGE_START_ADDRESS+0x040) /* uint32_t hw.cpufamily, x86*/ #define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x044) /* [0x44,0x50) unused */ #define _COMM_PAGE_TIME_DATA_START (_COMM_PAGE_START_ADDRESS+0x050) /* base of offsets below (_NT_SCALE etc) */ #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_NT_GENERATION (_COMM_PAGE_START_ADDRESS+0x068) /* used by nanotime() */ #define _COMM_PAGE_GTOD_GENERATION (_COMM_PAGE_START_ADDRESS+0x06c) /* used by gettimeofday() */ #define _COMM_PAGE_GTOD_NS_BASE (_COMM_PAGE_START_ADDRESS+0x070) /* used by gettimeofday() */ #define _COMM_PAGE_GTOD_SEC_BASE (_COMM_PAGE_START_ADDRESS+0x078) /* used by gettimeofday() */ /* NOTE: APPROX_TIME must be aligned to 64-byte cache line size: */ #define _COMM_PAGE_APPROX_TIME (_COMM_PAGE_START_ADDRESS+0x080) /* used by mach_approximate_time() */ #define _COMM_PAGE_APPROX_TIME_SUPPORTED (_COMM_PAGE_START_ADDRESS+0x088) /* used by mach_approximate_time() */ #define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0xfff) /* end of common page */ /* Warning: kernel commpage.h has a matching c typedef for the following. They must be kept in sync. */ /* These offsets are from _COMM_PAGE_TIME_DATA_START */ #define _NT_TSC_BASE 0 #define _NT_SCALE 8 #define _NT_SHIFT 12 #define _NT_NS_BASE 16 #define _NT_GENERATION 24 #define _GTOD_GENERATION 28 #define _GTOD_NS_BASE 32 #define _GTOD_SEC_BASE 40 /* 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 */ /* New slots should be allocated with at least 16-byte alignment. Some like bcopy require */ /* 32-byte alignment, and should be aligned as such in the assembly source before they are relocated */ #define _COMM_PAGE_TEXT_START (_COMM_PAGE_START_ADDRESS+0x1000) #define _COMM_PAGE32_TEXT_START (_COMM_PAGE32_BASE_ADDRESS+0x1000) /* start of text section */ #define _COMM_PAGE64_TEXT_START (_COMM_PAGE64_BASE_ADDRESS+0x1000) #define _COMM_PAGE_TEXT_AREA_USED ( 1 * 4096 ) #define _COMM_PAGE_TEXT_AREA_LENGTH ( 1 * 4096 ) #define _PFZ32_SLIDE_RANGE ( 14 ) /* pages between 0xfffff000 and _COMM_PAGE32_TEXT_START */ #define _PFZ64_SLIDE_RANGE ( 510 ) /* pages between 0x00007ffffffff000 and _COMM_PAGE64_TEXT_START */ /* setup start offset in the commpage text region for each jump table entry * the Comm Page Offset is shortened to _COMM_TEXT_[label]_OFFSET */ #define _COMM_TEXT_PREEMPT_OFFSET (0x5a0) /* called from withing pfz */ #define _COMM_TEXT_BACKOFF_OFFSET (0x600) /* called from PFZ */ #define _COMM_TEXT_PFZ_START_OFFSET (0xc00) /* offset for Preemption Free Zone */ #define _COMM_TEXT_PFZ_ENQUEUE_OFFSET (0xc00) /* internal FIFO enqueue */ #define _COMM_TEXT_PFZ_DEQUEUE_OFFSET (0xc80) /* internal FIFO dequeue */ #define _COMM_TEXT_UNUSED_OFFSET (0xd80) /* end of routines in text page */ #define _COMM_TEXT_PFZ_END_OFFSET (0xfff) /* offset for end of PFZ */ #define _COMM_PAGE_PREEMPT (_COMM_PAGE_TEXT_START+_COMM_TEXT_PREEMPT_OFFSET) #define _COMM_PAGE_BACKOFF (_COMM_PAGE_TEXT_START+_COMM_TEXT_BACKOFF_OFFSET) #define _COMM_PAGE_PFZ_START (_COMM_PAGE_TEXT_START+_COMM_PAGE_PFZ_START_OFFSET) #define _COMM_PAGE_PFZ_ENQUEUE (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_ENQUEUE_OFFSET) #define _COMM_PAGE_PFZ_DEQUEUE (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_DEQUEUE_OFFSET) #define _COMM_PAGE_UNUSED6 (_COMM_PAGE_TEXT_START+_COMM_TEXT_UNUSED_OFFSET) #define _COMM_PAGE_PFZ_END (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_END_OFFSET) #define _COMM_PAGE_TEXT_END (_COMM_PAGE_TEXT_START+_COMM_TEXT_PFZ_END_OFFSET) /* end of common text 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_START_ADDRESS & 0xFFFFE000)) ;\ symbol_name: nop .text /* Required to make a well behaved symbol file */ CREATE_COMM_PAGE_SYMBOL(___preempt, _COMM_PAGE_PREEMPT) CREATE_COMM_PAGE_SYMBOL(___backoff, _COMM_PAGE_BACKOFF) CREATE_COMM_PAGE_SYMBOL(___pfz_enqueue, _COMM_PAGE_PFZ_ENQUEUE) CREATE_COMM_PAGE_SYMBOL(___pfz_dequeue, _COMM_PAGE_PFZ_DEQUEUE) 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 */