/*
- * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, 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. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * 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
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
+#ifdef PRIVATE
#ifndef _I386_CPU_CAPABILITIES_H
#define _I386_CPU_CAPABILITIES_H
-/* Sadly, some clients of this interface misspell __APPLE_API_PRIVATE.
- * To avoid breaking them, we accept the incorrect _APPLE_API_PRIVATE.
+#ifndef __ASSEMBLER__
+#include <stdint.h>
+#endif
+
+/*
+ * This API only supported for Apple internal use.
*/
-#ifdef _APPLE_API_PRIVATE
-#ifndef __APPLE_API_PRIVATE
-#define __APPLE_API_PRIVATE
-#endif /* __APPLE_API_PRIVATE */
-#endif /* _APPLE_API_PRIVATE */
-#ifndef __APPLE_API_PRIVATE
-#error cpu_capabilities.h is for Apple Internal use only
-#else /* __APPLE_API_PRIVATE */
+/* 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 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 kNumCPUsShift 16 /* see _NumCPUs() below */
+
+#ifndef __ASSEMBLER__
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+extern int _get_cpu_capabilities( void );
+__END_DECLS
-/* _cpu_capabilities
+inline static
+int _NumCPUs( void )
+{
+ return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
+}
+
+#endif /* __ASSEMBLER__ */
+
+
+/*
+ * The shared kernel/user "comm page(s)":
*
- * 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.
- *
+ * 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 ( 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 */
-#ifndef __ASSEMBLER__
+#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
-extern int _cpu_capabilities;
+/* 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_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 */
+
+#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
-/* Bit definitions for _cpu_capabilities: */
+#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+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 (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_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+0x1700) /* nanotime() */
+
+#define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1780) /* end of common page - insert new stuff here */
+
+/* _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(___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(___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 */
+
+#endif /* __COMM_PAGE_SYMBOLS */
+#endif /* __ASSEMBLER__ */
-#endif /* __APPLE_API_PRIVATE */
#endif /* _I386_CPU_CAPABILITIES_H */
+#endif /* PRIVATE */
projects / apple / xnu.git / blobdiff