[apple/xnu.git] / osfmk / ppc / cpu_capabilities.h

/*
 * Copyright (c) 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. 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 _PPC_CPU_CAPABILITIES_H
#define _PPC_CPU_CAPABILITIES_H

/* _cpu_capabilities
 *
 * This is the authoritative way to determine from user mode what
 * implementation-specific processor features are available.
 * This API is only supported for Apple internal use.
 */

#ifndef	__ASSEMBLER__
 
extern int _cpu_capabilities;
 
#endif /* __ASSEMBLER__ */

/* Bit definitions for _cpu_capabilities: */

#define	kHasAltivec				0x00000001
#define	k64Bit					0x00000002	// 64-bit GPRs
#define	kCache32				0x00000004	// cache line size is 32 bytes
#define	kCache64				0x00000008
#define	kCache128				0x00000010
#define	kDcbaRecommended		0x00000020	// PPC: dcba is available and recommended
#define	kDcbaAvailable			0x00000040	// PPC: dcba is available (but may or may not be recommended)
#define	kDataStreamsRecommended	0x00000080	// PPC: dst, dstt, dstst, dss, and dssall instructions available and recommended
#define	kDataStreamsAvailable	0x00000100	// PPC: dst, dstt, dstst, dss, and dssall instructions available (may or may not be rec'd)
#define	kDcbtStreamsRecommended	0x00000200	// PPC: enhanced dcbt instruction available and recommended
#define	kDcbtStreamsAvailable	0x00000400	// PPC: enhanced dcbt instruction available (but may or may not be recommended)
#define	kFastThreadLocalStorage	0x00000800	// 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

#define	kHasGraphicsOps			0x08000000	// PPC: has fres, frsqrte, and fsel instructions
#define	kHasStfiwx				0x10000000	// PPC: has stfiwx instruction
#define	kHasFsqrt				0x20000000	// PPC: has fsqrt and fsqrts instructions

#ifndef	__ASSEMBLER__
 
static __inline__ int _NumCPUs( void ) { return (_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".  Because they can be addressed via a sign-extended 16-bit field,
 * it is particularly efficient to access code or data in the comm area with
 * absolute branches (ba, bla, bca) or absolute load/stores ("lwz r0,-4096(0)").
 * Because the comm area can be reached from anywhere, dyld is not needed.
 * Although eight pages are reserved, presently only two are populated and mapped.
 *
 * Routines on the comm page(s) can be thought of as the firmware for extended processor
 * instructions, whose opcodes are special forms of "bla".  Ie, they are cpu
 * capabilities.  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_BASE_ADDRESS			(-8*4096)						// start at page -8, ie 0xFFFF8000
#define	_COMM_PAGE_AREA_LENGTH			( 7*4096)						// reserved length of entire comm area
#define	_COMM_PAGE_AREA_USED			( 2*4096)						// we use two pages so far

/* The Objective-C runtime fixed address page to optimize message dispatch */
#define _OBJC_PAGE_BASE_ADDRESS			(-20*4096)						// start at page -20, ie 0xFFFEC000
 
/* data in the comm page */
 
#define _COMM_PAGE_SIGNATURE			(_COMM_PAGE_BASE_ADDRESS+0x000)	// first few bytes are a signature
#define _COMM_PAGE_VERSION				(_COMM_PAGE_BASE_ADDRESS+0x01E)	// 16-bit version#
#define	_COMM_PAGE_THIS_VERSION			2								// this is version 2 of the commarea format
  
#define _COMM_PAGE_CPU_CAPABILITIES		(_COMM_PAGE_BASE_ADDRESS+0x020)	// mirror of extern int _cpu_capabilities
#define _COMM_PAGE_NCPUS				(_COMM_PAGE_BASE_ADDRESS+0x021)	// number of configured CPUs
#define _COMM_PAGE_ALTIVEC				(_COMM_PAGE_BASE_ADDRESS+0x024)	// nonzero if Altivec available
#define _COMM_PAGE_64_BIT				(_COMM_PAGE_BASE_ADDRESS+0x025)	// nonzero if 64-bit processor
#define _COMM_PAGE_CACHE_LINESIZE		(_COMM_PAGE_BASE_ADDRESS+0x026)	// cache line size (16-bit field)
 
#define _COMM_PAGE_UNUSED1				(_COMM_PAGE_BASE_ADDRESS+0x028)	// 24 unused bytes
 
#define _COMM_PAGE_2_TO_52				(_COMM_PAGE_BASE_ADDRESS+0x040)	// double float constant 2**52
#define _COMM_PAGE_10_TO_6				(_COMM_PAGE_BASE_ADDRESS+0x048)	// double float constant 10**6
#define _COMM_PAGE_MAGIC_FE             (_COMM_PAGE_BASE_ADDRESS+0x050) // magic constant 0xFEFEFEFEFEFEFEFF (to find 0s)
#define _COMM_PAGE_MAGIC_80             (_COMM_PAGE_BASE_ADDRESS+0x058) // magic constant 0x8080808080808080 (to find 0s)
 
#define _COMM_PAGE_TIMEBASE				(_COMM_PAGE_BASE_ADDRESS+0x060)	// used by gettimeofday()
#define _COMM_PAGE_TIMESTAMP			(_COMM_PAGE_BASE_ADDRESS+0x068)	// used by gettimeofday()
#define _COMM_PAGE_SEC_PER_TICK			(_COMM_PAGE_BASE_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_BASE_ADDRESS+0x080) // compare-and-swap word, no barrier
#define _COMM_PAGE_COMPARE_AND_SWAP64   (_COMM_PAGE_BASE_ADDRESS+0x0c0) // compare-and-swap doubleword, no barrier
#define _COMM_PAGE_ENQUEUE				(_COMM_PAGE_BASE_ADDRESS+0x100) // enqueue
#define _COMM_PAGE_DEQUEUE				(_COMM_PAGE_BASE_ADDRESS+0x140) // dequeue
#define _COMM_PAGE_MEMORY_BARRIER		(_COMM_PAGE_BASE_ADDRESS+0x180) // memory barrier
#define _COMM_PAGE_ATOMIC_ADD32			(_COMM_PAGE_BASE_ADDRESS+0x1a0) // add atomic word
#define _COMM_PAGE_ATOMIC_ADD64			(_COMM_PAGE_BASE_ADDRESS+0x1c0) // add atomic doubleword

#define _COMM_PAGE_UNUSED3				(_COMM_PAGE_BASE_ADDRESS+0x1e0) // 32 unused bytes

#define _COMM_PAGE_ABSOLUTE_TIME		(_COMM_PAGE_BASE_ADDRESS+0x200)	// mach_absolute_time()
#define _COMM_PAGE_SPINLOCK_TRY			(_COMM_PAGE_BASE_ADDRESS+0x220)	// spinlock_try()
#define _COMM_PAGE_SPINLOCK_LOCK		(_COMM_PAGE_BASE_ADDRESS+0x260)	// spinlock_lock()
#define _COMM_PAGE_SPINLOCK_UNLOCK		(_COMM_PAGE_BASE_ADDRESS+0x2a0)	// spinlock_unlock()
#define _COMM_PAGE_PTHREAD_GETSPECIFIC	(_COMM_PAGE_BASE_ADDRESS+0x2c0)	// pthread_getspecific()
#define _COMM_PAGE_GETTIMEOFDAY			(_COMM_PAGE_BASE_ADDRESS+0x2e0)	// used by gettimeofday()
#define _COMM_PAGE_FLUSH_DCACHE			(_COMM_PAGE_BASE_ADDRESS+0x4e0)	// sys_dcache_flush()
#define _COMM_PAGE_FLUSH_ICACHE			(_COMM_PAGE_BASE_ADDRESS+0x520)	// sys_icache_invalidate()
#define _COMM_PAGE_PTHREAD_SELF			(_COMM_PAGE_BASE_ADDRESS+0x580)	// pthread_self()

#define	_COMM_PAGE_UNUSED4				(_COMM_PAGE_BASE_ADDRESS+0x5a0)	// 32 unused bytes

#define	_COMM_PAGE_RELINQUISH			(_COMM_PAGE_BASE_ADDRESS+0x5c0)	// used by spinlocks
 
#define _COMM_PAGE_UNUSED5				(_COMM_PAGE_BASE_ADDRESS+0x5e0)	// 32 unused bytes
 
#define _COMM_PAGE_BZERO				(_COMM_PAGE_BASE_ADDRESS+0x600)	// bzero()
#define _COMM_PAGE_BCOPY				(_COMM_PAGE_BASE_ADDRESS+0x780)	// bcopy()
#define	_COMM_PAGE_MEMCPY				(_COMM_PAGE_BASE_ADDRESS+0x7a0)	// memcpy()
#define	_COMM_PAGE_MEMMOVE				(_COMM_PAGE_BASE_ADDRESS+0x7a0)	// memmove()

#define _COMM_PAGE_COMPARE_AND_SWAP32B  (_COMM_PAGE_BASE_ADDRESS+0xf80)	// compare-and-swap word w barrier
#define _COMM_PAGE_COMPARE_AND_SWAP64B  (_COMM_PAGE_BASE_ADDRESS+0xfc0)	// compare-and-swap doubleword w barrier

#define	_COMM_PAGE_MEMSET_PATTERN       (_COMM_PAGE_BASE_ADDRESS+0x1000)// used by nonzero memset()
#define	_COMM_PAGE_BIGCOPY				(_COMM_PAGE_BASE_ADDRESS+0x1140)// very-long-operand copies

#define _COMM_PAGE_END					(_COMM_PAGE_BASE_ADDRESS+0x1700)// end of commpage area

#ifdef __ASSEMBLER__
#ifdef __COMM_PAGE_SYMBOLS

#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address)		\
				.org	(symbol_address - _COMM_PAGE_BASE_ADDRESS) @\
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(___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(___compare_and_swap32b, _COMM_PAGE_COMPARE_AND_SWAP32B)
	CREATE_COMM_PAGE_SYMBOL(___compare_and_swap64b, _COMM_PAGE_COMPARE_AND_SWAP64B)
    CREATE_COMM_PAGE_SYMBOL(___memset_pattern, _COMM_PAGE_MEMSET_PATTERN)
	CREATE_COMM_PAGE_SYMBOL(___bigcopy, _COMM_PAGE_BIGCOPY)
	
	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 /* _PPC_CPU_CAPABILITIES_H */
#endif /* PRIVATE */
Commit	Line	Data
43866e37	1	/*
8f6c56a5	2	* Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
43866e37	3	*
8f6c56a5	4	* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
43866e37	5	*
8f6c56a5 A	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. The rights granted to you under the License
	10	* may not be used to create, or enable the creation or redistribution of,
	11	* unlawful or unlicensed copies of an Apple operating system, or to
	12	* circumvent, violate, or enable the circumvention or violation of, any
	13	* terms of an Apple operating system software license agreement.
	14	*
	15	* Please obtain a copy of the License at
	16	* http://www.opensource.apple.com/apsl/ and read it before using this file.
	17	*
	18	* The Original Code and all software distributed under the License are
	19	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	20	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	21	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	22	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	23	* Please see the License for the specific language governing rights and
8ad349bb	24	* limitations under the License.
8f6c56a5 A	25	*
8f6c56a5 A	26	* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
43866e37	27	*/
91447636	28	#ifdef PRIVATE
43866e37 A	29
	30	#ifndef _PPC_CPU_CAPABILITIES_H
	31	#define _PPC_CPU_CAPABILITIES_H
	32
43866e37 A	33	/* _cpu_capabilities
	34	*
	35	* This is the authoritative way to determine from user mode what
	36	* implementation-specific processor features are available.
91447636	37	* This API is only supported for Apple internal use.
43866e37 A	38	*/
	39
	40	#ifndef __ASSEMBLER__
	41
	42	extern int _cpu_capabilities;
	43
	44	#endif /* __ASSEMBLER__ */
	45
	46	/* Bit definitions for _cpu_capabilities: */
	47
	48	#define kHasAltivec 0x00000001
	49	#define k64Bit 0x00000002 // 64-bit GPRs
	50	#define kCache32 0x00000004 // cache line size is 32 bytes
	51	#define kCache64 0x00000008
	52	#define kCache128 0x00000010
	53	#define kDcbaRecommended 0x00000020 // PPC: dcba is available and recommended
91447636	54	#define kDcbaAvailable 0x00000040 // PPC: dcba is available (but may or may not be recommended)
43866e37	55	#define kDataStreamsRecommended 0x00000080 // PPC: dst, dstt, dstst, dss, and dssall instructions available and recommended
91447636	56	#define kDataStreamsAvailable 0x00000100 // PPC: dst, dstt, dstst, dss, and dssall instructions available (may or may not be rec'd)
43866e37	57	#define kDcbtStreamsRecommended 0x00000200 // PPC: enhanced dcbt instruction available and recommended
91447636 A	58	#define kDcbtStreamsAvailable 0x00000400 // PPC: enhanced dcbt instruction available (but may or may not be recommended)
91447636 A	59	#define kFastThreadLocalStorage 0x00000800 // TLS ptr is kept in a user-mode-readable register
43866e37 A	60
	61	#define kUP 0x00008000 // set if (kNumCPUs == 1)
	62	#define kNumCPUs 0x00FF0000 // number of CPUs (see _NumCPUs() below)
	63
	64	#define kNumCPUsShift 16 // see _NumCPUs() below
	65
	66	#define kHasGraphicsOps 0x08000000 // PPC: has fres, frsqrte, and fsel instructions
	67	#define kHasStfiwx 0x10000000 // PPC: has stfiwx instruction
	68	#define kHasFsqrt 0x20000000 // PPC: has fsqrt and fsqrts instructions
	69
	70	#ifndef __ASSEMBLER__
	71
	72	static __inline__ int _NumCPUs( void ) { return (_cpu_capabilities & kNumCPUs) >> kNumCPUsShift; }
	73
	74	#endif /* __ASSEMBLER__ */
55e303ae A	75
	76
	77	/*
	78	* The shared kernel/user "comm page(s)":
	79	*
	80	* The last eight pages of every address space are reserved for the kernel/user
	81	* "comm area". Because they can be addressed via a sign-extended 16-bit field,
	82	* it is particularly efficient to access code or data in the comm area with
	83	* absolute branches (ba, bla, bca) or absolute load/stores ("lwz r0,-4096(0)").
	84	* Because the comm area can be reached from anywhere, dyld is not needed.
	85	* Although eight pages are reserved, presently only two are populated and mapped.
	86	*
	87	* Routines on the comm page(s) can be thought of as the firmware for extended processor
	88	* instructions, whose opcodes are special forms of "bla". Ie, they are cpu
	89	* capabilities. During system initialization, the kernel populates the comm page with
	90	* code customized for the particular processor and platform.
	91	*
	92	* Because Mach VM cannot map the last page of an address space, the max length of
	93	* the comm area is seven pages.
	94	*/
	95
	96	#define _COMM_PAGE_BASE_ADDRESS (-8*4096) // start at page -8, ie 0xFFFF8000
	97	#define _COMM_PAGE_AREA_LENGTH ( 7*4096) // reserved length of entire comm area
	98	#define _COMM_PAGE_AREA_USED ( 2*4096) // we use two pages so far
91447636 A	99
	100	/* The Objective-C runtime fixed address page to optimize message dispatch */
	101	#define _OBJC_PAGE_BASE_ADDRESS (-20*4096) // start at page -20, ie 0xFFFEC000
55e303ae A	102
	103	/* data in the comm page */
	104
	105	#define _COMM_PAGE_SIGNATURE (_COMM_PAGE_BASE_ADDRESS+0x000) // first few bytes are a signature
	106	#define _COMM_PAGE_VERSION (_COMM_PAGE_BASE_ADDRESS+0x01E) // 16-bit version#
91447636	107	#define _COMM_PAGE_THIS_VERSION 2 // this is version 2 of the commarea format
55e303ae A	108
	109	#define _COMM_PAGE_CPU_CAPABILITIES (_COMM_PAGE_BASE_ADDRESS+0x020) // mirror of extern int _cpu_capabilities
	110	#define _COMM_PAGE_NCPUS (_COMM_PAGE_BASE_ADDRESS+0x021) // number of configured CPUs
	111	#define _COMM_PAGE_ALTIVEC (_COMM_PAGE_BASE_ADDRESS+0x024) // nonzero if Altivec available
	112	#define _COMM_PAGE_64_BIT (_COMM_PAGE_BASE_ADDRESS+0x025) // nonzero if 64-bit processor
	113	#define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_BASE_ADDRESS+0x026) // cache line size (16-bit field)
	114
91447636	115	#define _COMM_PAGE_UNUSED1 (_COMM_PAGE_BASE_ADDRESS+0x028) // 24 unused bytes
55e303ae A	116
	117	#define _COMM_PAGE_2_TO_52 (_COMM_PAGE_BASE_ADDRESS+0x040) // double float constant 2**52
	118	#define _COMM_PAGE_10_TO_6 (_COMM_PAGE_BASE_ADDRESS+0x048) // double float constant 10**6
91447636 A	119	#define _COMM_PAGE_MAGIC_FE (_COMM_PAGE_BASE_ADDRESS+0x050) // magic constant 0xFEFEFEFEFEFEFEFF (to find 0s)
91447636 A	120	#define _COMM_PAGE_MAGIC_80 (_COMM_PAGE_BASE_ADDRESS+0x058) // magic constant 0x8080808080808080 (to find 0s)
55e303ae A	121
	122	#define _COMM_PAGE_TIMEBASE (_COMM_PAGE_BASE_ADDRESS+0x060) // used by gettimeofday()
	123	#define _COMM_PAGE_TIMESTAMP (_COMM_PAGE_BASE_ADDRESS+0x068) // used by gettimeofday()
	124	#define _COMM_PAGE_SEC_PER_TICK (_COMM_PAGE_BASE_ADDRESS+0x070) // used by gettimeofday()
	125
55e303ae A	126	/* jump table (bla to this address, which may be a branch to the actual code somewhere else) */
	127	/* When new jump table entries are added, corresponding symbols should be added below */
	128
91447636 A	129	#define _COMM_PAGE_COMPARE_AND_SWAP32 (_COMM_PAGE_BASE_ADDRESS+0x080) // compare-and-swap word, no barrier
	130	#define _COMM_PAGE_COMPARE_AND_SWAP64 (_COMM_PAGE_BASE_ADDRESS+0x0c0) // compare-and-swap doubleword, no barrier
	131	#define _COMM_PAGE_ENQUEUE (_COMM_PAGE_BASE_ADDRESS+0x100) // enqueue
	132	#define _COMM_PAGE_DEQUEUE (_COMM_PAGE_BASE_ADDRESS+0x140) // dequeue
	133	#define _COMM_PAGE_MEMORY_BARRIER (_COMM_PAGE_BASE_ADDRESS+0x180) // memory barrier
	134	#define _COMM_PAGE_ATOMIC_ADD32 (_COMM_PAGE_BASE_ADDRESS+0x1a0) // add atomic word
	135	#define _COMM_PAGE_ATOMIC_ADD64 (_COMM_PAGE_BASE_ADDRESS+0x1c0) // add atomic doubleword
	136
	137	#define _COMM_PAGE_UNUSED3 (_COMM_PAGE_BASE_ADDRESS+0x1e0) // 32 unused bytes
	138
55e303ae A	139	#define _COMM_PAGE_ABSOLUTE_TIME (_COMM_PAGE_BASE_ADDRESS+0x200) // mach_absolute_time()
	140	#define _COMM_PAGE_SPINLOCK_TRY (_COMM_PAGE_BASE_ADDRESS+0x220) // spinlock_try()
	141	#define _COMM_PAGE_SPINLOCK_LOCK (_COMM_PAGE_BASE_ADDRESS+0x260) // spinlock_lock()
	142	#define _COMM_PAGE_SPINLOCK_UNLOCK (_COMM_PAGE_BASE_ADDRESS+0x2a0) // spinlock_unlock()
	143	#define _COMM_PAGE_PTHREAD_GETSPECIFIC (_COMM_PAGE_BASE_ADDRESS+0x2c0) // pthread_getspecific()
	144	#define _COMM_PAGE_GETTIMEOFDAY (_COMM_PAGE_BASE_ADDRESS+0x2e0) // used by gettimeofday()
	145	#define _COMM_PAGE_FLUSH_DCACHE (_COMM_PAGE_BASE_ADDRESS+0x4e0) // sys_dcache_flush()
	146	#define _COMM_PAGE_FLUSH_ICACHE (_COMM_PAGE_BASE_ADDRESS+0x520) // sys_icache_invalidate()
	147	#define _COMM_PAGE_PTHREAD_SELF (_COMM_PAGE_BASE_ADDRESS+0x580) // pthread_self()
91447636	148
55e303ae	149	#define _COMM_PAGE_UNUSED4 (_COMM_PAGE_BASE_ADDRESS+0x5a0) // 32 unused bytes
91447636	150
55e303ae A	151	#define _COMM_PAGE_RELINQUISH (_COMM_PAGE_BASE_ADDRESS+0x5c0) // used by spinlocks
	152
	153	#define _COMM_PAGE_UNUSED5 (_COMM_PAGE_BASE_ADDRESS+0x5e0) // 32 unused bytes
	154
	155	#define _COMM_PAGE_BZERO (_COMM_PAGE_BASE_ADDRESS+0x600) // bzero()
	156	#define _COMM_PAGE_BCOPY (_COMM_PAGE_BASE_ADDRESS+0x780) // bcopy()
	157	#define _COMM_PAGE_MEMCPY (_COMM_PAGE_BASE_ADDRESS+0x7a0) // memcpy()
	158	#define _COMM_PAGE_MEMMOVE (_COMM_PAGE_BASE_ADDRESS+0x7a0) // memmove()
	159
91447636 A	160	#define _COMM_PAGE_COMPARE_AND_SWAP32B (_COMM_PAGE_BASE_ADDRESS+0xf80) // compare-and-swap word w barrier
91447636 A	161	#define _COMM_PAGE_COMPARE_AND_SWAP64B (_COMM_PAGE_BASE_ADDRESS+0xfc0) // compare-and-swap doubleword w barrier
55e303ae	162
91447636 A	163	#define _COMM_PAGE_MEMSET_PATTERN (_COMM_PAGE_BASE_ADDRESS+0x1000)// used by nonzero memset()
91447636 A	164	#define _COMM_PAGE_BIGCOPY (_COMM_PAGE_BASE_ADDRESS+0x1140)// very-long-operand copies
55e303ae	165
91447636	166	#define _COMM_PAGE_END (_COMM_PAGE_BASE_ADDRESS+0x1700)// end of commpage area
55e303ae A	167
	168	#ifdef __ASSEMBLER__
	169	#ifdef __COMM_PAGE_SYMBOLS
	170
	171	#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \
	172	.org (symbol_address - _COMM_PAGE_BASE_ADDRESS) @\
	173	symbol_name: nop
	174
	175	.text // Required to make a well behaved symbol file
	176
91447636 A	177	CREATE_COMM_PAGE_SYMBOL(___compare_and_swap32, _COMM_PAGE_COMPARE_AND_SWAP32)
	178	CREATE_COMM_PAGE_SYMBOL(___compare_and_swap64, _COMM_PAGE_COMPARE_AND_SWAP64)
	179	CREATE_COMM_PAGE_SYMBOL(___atomic_enqueue, _COMM_PAGE_ENQUEUE)
	180	CREATE_COMM_PAGE_SYMBOL(___atomic_dequeue, _COMM_PAGE_DEQUEUE)
	181	CREATE_COMM_PAGE_SYMBOL(___memory_barrier, _COMM_PAGE_MEMORY_BARRIER)
	182	CREATE_COMM_PAGE_SYMBOL(___atomic_add32, _COMM_PAGE_ATOMIC_ADD32)
	183	CREATE_COMM_PAGE_SYMBOL(___atomic_add64, _COMM_PAGE_ATOMIC_ADD64)
55e303ae A	184	CREATE_COMM_PAGE_SYMBOL(___mach_absolute_time, _COMM_PAGE_ABSOLUTE_TIME)
	185	CREATE_COMM_PAGE_SYMBOL(___spin_lock_try, _COMM_PAGE_SPINLOCK_TRY)
	186	CREATE_COMM_PAGE_SYMBOL(___spin_lock, _COMM_PAGE_SPINLOCK_LOCK)
	187	CREATE_COMM_PAGE_SYMBOL(___spin_unlock, _COMM_PAGE_SPINLOCK_UNLOCK)
	188	CREATE_COMM_PAGE_SYMBOL(___pthread_getspecific, _COMM_PAGE_PTHREAD_GETSPECIFIC)
	189	CREATE_COMM_PAGE_SYMBOL(___gettimeofday, _COMM_PAGE_GETTIMEOFDAY)
	190	CREATE_COMM_PAGE_SYMBOL(___sys_dcache_flush, _COMM_PAGE_FLUSH_DCACHE)
	191	CREATE_COMM_PAGE_SYMBOL(___sys_icache_invalidate, _COMM_PAGE_FLUSH_ICACHE)
	192	CREATE_COMM_PAGE_SYMBOL(___pthread_self, _COMM_PAGE_PTHREAD_SELF)
	193	CREATE_COMM_PAGE_SYMBOL(___spin_lock_relinquish, _COMM_PAGE_RELINQUISH)
	194	CREATE_COMM_PAGE_SYMBOL(___bzero, _COMM_PAGE_BZERO)
	195	CREATE_COMM_PAGE_SYMBOL(___bcopy, _COMM_PAGE_BCOPY)
	196	CREATE_COMM_PAGE_SYMBOL(___memcpy, _COMM_PAGE_MEMCPY)
	197	// CREATE_COMM_PAGE_SYMBOL(___memmove, _COMM_PAGE_MEMMOVE)
91447636 A	198	CREATE_COMM_PAGE_SYMBOL(___compare_and_swap32b, _COMM_PAGE_COMPARE_AND_SWAP32B)
	199	CREATE_COMM_PAGE_SYMBOL(___compare_and_swap64b, _COMM_PAGE_COMPARE_AND_SWAP64B)
	200	CREATE_COMM_PAGE_SYMBOL(___memset_pattern, _COMM_PAGE_MEMSET_PATTERN)
55e303ae	201	CREATE_COMM_PAGE_SYMBOL(___bigcopy, _COMM_PAGE_BIGCOPY)
91447636	202
55e303ae A	203	CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END)
	204
	205	.data // Required to make a well behaved symbol file
	206	.long 0 // Required to make a well behaved symbol file
	207
	208	#endif /* __COMM_PAGE_SYMBOLS */
	209	#endif /* __ASSEMBLER__ */
	210
43866e37	211	#endif /* _PPC_CPU_CAPABILITIES_H */
91447636	212	#endif /* PRIVATE */