xnu-6153.101.6.tar.gz

[apple/xnu.git] / osfmk / i386 / cpu_capabilities.h

diff --git a/osfmk/i386/cpu_capabilities.h b/osfmk/i386/cpu_capabilities.h
index 5205eb2e8ffbca9c76a9a637f62e4a825c4544a7..89f8fc52d4c12f1f0da31f3a5b9a6a02fee63920 100644 (file)
--- a/osfmk/i386/cpu_capabilities.h
+++ b/osfmk/i386/cpu_capabilities.h
@@ -1,8 +1,8 @@
 /*
 /*

- * Copyright (c) 2003-2009 Apple Inc. All rights reserved.
+ * Copyright (c) 2003-2019 Apple Inc. All rights reserved.

  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  *
  * @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
  * 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


@@ -11,10 +11,10 @@
  * 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.
  * 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.
  * 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,
  * 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,


@@ -22,64 +22,82 @@
  * 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, 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@
  */
  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */

-#ifdef PRIVATE
+#ifdef  PRIVATE

 
 #ifndef _I386_CPU_CAPABILITIES_H
 #define _I386_CPU_CAPABILITIES_H
 
 
 #ifndef _I386_CPU_CAPABILITIES_H
 #define _I386_CPU_CAPABILITIES_H
 

-#ifndef        __ASSEMBLER__
+#ifndef __ASSEMBLER__

 #include <stdint.h>
 #endif
 #include <stdint.h>
 #endif

- 
+

 /*
  * This API only supported for Apple internal use.
  */
 
 /* Bit definitions for _cpu_capabilities: */
 
 /*
  * 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__
+#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
+#define kHasRDSEED              0x0000000800000000ULL
+#define kHasADX                 0x0000000400000000ULL
+#define kHasMPX                 0x0000001000000000ULL
+#define kHasSGX                 0x0000002000000000ULL
+#define kHasAVX512F             0x0000004000000000ULL
+#define kHasAVX512CD            0x0000008000000000ULL
+#define kHasAVX512DQ            0x0000010000000000ULL
+#define kHasAVX512BW            0x0000020000000000ULL
+#define kHasAVX512IFMA          0x0000040000000000ULL
+#define kHasAVX512VBMI          0x0000080000000000ULL
+#define kHasAVX512VL            0x0000100000000000ULL
+#define kHasVAES                0x0000200000000000ULL
+#define kHasVPCLMULQDQ          0x0000400000000000ULL
+#define kHasAVX512VNNI          0x0000800000000000ULL
+#define kHasAVX512BITALG        0x0001000000000000ULL
+#define kHasAVX512VPOPCNTDQ     0x0002000000000000ULL
+
+
+#ifndef __ASSEMBLER__

 #include <sys/cdefs.h>
 #include <sys/cdefs.h>

+#include <sys/commpage.h>

 
 __BEGIN_DECLS
 extern uint64_t  _get_cpu_capabilities( void );
 __END_DECLS
 
 
 __BEGIN_DECLS
 extern uint64_t  _get_cpu_capabilities( void );
 __END_DECLS
 

-inline static
-int _NumCPUs( void )
+__inline static
+int
+_NumCPUs( void )

 {
        return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
 }
 {
        return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
 }


@@ -91,7 +109,7 @@ int _NumCPUs( void )
  * the 64-bit commpage.  Since the kernel can be a 32-bit object, cpu_capabilities.h
  * only defines the 32-bit address.
  */
  * 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 )
+#define _COMM_PAGE_32_TO_64( ADDRESS )  ( ADDRESS + _COMM_PAGE64_START_ADDRESS - _COMM_PAGE32_START_ADDRESS )

 
 
 /*
 
 
 /*


@@ -103,27 +121,27 @@ int _NumCPUs( void )
  *
  * 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, 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) */
+
+#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__
 #ifdef __ASSEMBLER__

-#define _COMM_PAGE64_BASE_ADDRESS      ( 0x00007fffffe00000 )   /* base address of allocated memory */
+#define _COMM_PAGE64_BASE_ADDRESS       ( 0x00007fffffe00000 )   /* base address of allocated memory */

 #else /* __ASSEMBLER__ */
 #else /* __ASSEMBLER__ */

-#define _COMM_PAGE64_BASE_ADDRESS      ( 0x00007fffffe00000ULL )   /* base address of allocated memory */
+#define _COMM_PAGE64_BASE_ADDRESS       ( 0x00007fffffe00000ULL )   /* base address of allocated memory */

 #endif /* __ASSEMBLER__ */
 #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 */
+#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 */
 
 /* 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
+#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
 
 
 #ifdef KERNEL_PRIVATE
 


@@ -131,143 +149,162 @@ int _NumCPUs( void )
  * assuming they are a part of the 32-bit commpage. They may
  * be mapped somewhere else, especially for the 64-bit commpage.
  */
  * 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
+#define _COMM_PAGE_START_ADDRESS        _COMM_PAGE32_START_ADDRESS
+#define _COMM_PAGE_SIGS_OFFSET          _COMM_PAGE32_SIGS_OFFSET

 
 #else /* !KERNEL_PRIVATE */
 
 #if defined(__i386__)
 
 
 #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
+#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__)
 
 
 #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
+#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
 
 #else
 #error architecture not supported
 #endif

- 
+

 #endif /* !KERNEL_PRIVATE */
 
 /* data in the comm page */
 #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() */
-
-#define _COMM_PAGE_END                 (_COMM_PAGE_START_ADDRESS+0xfff)        /* end of common 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_KDEBUG_ENABLE        (_COMM_PAGE_START_ADDRESS+0x044)        /* uint32_t export "kdebug_enable" to userspace */
+#define _COMM_PAGE_ATM_DIAGNOSTIC_CONFIG        (_COMM_PAGE_START_ADDRESS+0x48) /* uint32_t export "atm_diagnostic_config" to userspace */
+
+#define _COMM_PAGE_DTRACE_DOF_ENABLED   (_COMM_PAGE_START_ADDRESS+0x04C)        /* uint8_t 0 if userspace DOF disable, 1 if enabled */
+#define _COMM_PAGE_UNUSED2              (_COMM_PAGE_START_ADDRESS+0x04D)        /* [0x4D,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() */
+
+/* Align following entries to next cache line */
+#define _COMM_PAGE_CONT_TIMEBASE        (_COMM_PAGE_START_ADDRESS+0x0C0)        /* used by mach_continuous_time() */
+#define _COMM_PAGE_BOOTTIME_USEC        (_COMM_PAGE_START_ADDRESS+0x0C8)        /* uint64_t boottime */
+#define _COMM_PAGE_NEWTIMEOFDAY_DATA    (_COMM_PAGE_START_ADDRESS+0x0D0)        /* used by gettimeofday(). Currently, sizeof(new_commpage_timeofday_data_t) = 40 */
+
+/* Resume packed values to the next cacheline */
+#define _COMM_PAGE_DYLD_SYSTEM_FLAGS    (_COMM_PAGE_START_ADDRESS+0x100)        /* uint64_t export kern.dyld_system_flags to userspace */
+
+#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 */
 
 
 /* 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 _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_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 */
+#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 
+/* setup start offset in the commpage text region for each jump table entry

  * the Comm Page Offset is shortened to _COMM_TEXT_[label]_OFFSET
  */
 
  * 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_TEXT_PREEMPT_OFFSET               (0x5a0) /* called from withing pfz */
+#define _COMM_TEXT_BACKOFF_OFFSET               (0x600) /* called from PFZ */
+#define _COMM_TEXT_RET_OFFSET                   (0x680) /* 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                (0xd00) /* end of routines in text page */
+#define _COMM_TEXT_PFZ_END_OFFSET               (0xd00) /* 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_PREEMPT              (_COMM_PAGE_TEXT_START+_COMM_TEXT_PREEMPT_OFFSET)
+#define _COMM_PAGE_BACKOFF              (_COMM_PAGE_TEXT_START+_COMM_TEXT_BACKOFF_OFFSET)
+#define _COMM_PAGE_RET                  (_COMM_PAGE_TEXT_START+_COMM_TEXT_RET_OFFSET)

 
 

-#define _COMM_PAGE_PFZ_START           (_COMM_PAGE_TEXT_START+_COMM_PAGE_PFZ_START_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_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 */
+#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. */
 
 /* _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_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
 
 
 #ifdef __ASSEMBLER__
 #ifdef __COMM_PAGE_SYMBOLS
 

-#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address)           \
-                               .org    (symbol_address - (_COMM_PAGE_START_ADDRESS & 0xFFFFE000)) ;\
+#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address)            \
+                               .org    (symbol_address - (_COMM_PAGE_START_ADDRESS & 0xFFFFE000)) ;\

 symbol_name: nop
 
 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(___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)
+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 */
+.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 /* __COMM_PAGE_SYMBOLS */
 #endif /* __ASSEMBLER__ */