/*
- * Copyright (c) 2003-2005 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2003-2019 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
* 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,
* 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
+#ifdef PRIVATE
#ifndef _I386_CPU_CAPABILITIES_H
#define _I386_CPU_CAPABILITIES_H
-#ifndef __ASSEMBLER__
+#ifndef __ASSEMBLER__
#include <stdint.h>
#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: */
-#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 kUP 0x00008000 // set if (kNumCPUs == 1)
-#define kNumCPUs 0x00FF0000 // number of CPUs (see _NumCPUs() below)
+#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
-#define kNumCPUsShift 16 // see _NumCPUs() below
+#define kIsTranslated 0x4000000000000000ULL
-#ifndef __ASSEMBLER__
+#ifndef __ASSEMBLER__
#include <sys/cdefs.h>
+#include <sys/commpage.h>
__BEGIN_DECLS
-extern int _get_cpu_capabilities( void );
+extern uint64_t _get_cpu_capabilities( void );
__END_DECLS
-inline static
-int _NumCPUs( void )
+__inline static
+int
+_NumCPUs( void )
{
- return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
+ 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 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_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_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_PAGE_START_ADDRESS _COMM_PAGE32_START_ADDRESS
+#define _COMM_PAGE_SIGS_OFFSET _COMM_PAGE32_SIGS_OFFSET
+
+#else /* !KERNEL_PRIVATE */
+
+/*
+ * <sys/commpage.h> defines a couple of conveniency macros
+ * to help read data from the commpage.
+ */
+#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 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_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_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x050) // 16 unused bytes
-
-#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()
-
- /* 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_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_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_NANOTIME (_COMM_PAGE_START_ADDRESS+0xF80) // nanotime()
-
-#define _COMM_PAGE_BIGCOPY (_COMM_PAGE_START_ADDRESS+0x1000)// very-long-operand copies
-
-#define _COMM_PAGE_END (_COMM_PAGE_START_ADDRESS+0x1600)// 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 14
+
+#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_UNUSED4 (_COMM_PAGE_START_ADDRESS+0x028) /* used to be _COMM_PAGE_SCHED_GEN: 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_UNUSED3 (_COMM_PAGE_START_ADDRESS+0x030) /* used to be _COMM_PAGE_SPIN_COUNT: 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_KERNEL_PAGE_SHIFT (_COMM_PAGE_START_ADDRESS+0x04D) /* uint8_t kernel vm page shift. COMM_PAGE_VERSION >= 14 */
+#define _COMM_PAGE_USER_PAGE_SHIFT_64 (_COMM_PAGE_START_ADDRESS+0x04E) /* uint8_t user vm page shift. COMM_PAGE_VERSION >= 14 */
+#define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x04F) /* 0x4F 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_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 */
+
+#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_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_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_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 */
+
+/*
+ * _COMM_PAGE_USER_PAGE_SHIFT32 and _COMM_PAGE_USER_PAGE_SHIFT64 are the same on x86.
+ * But both defined to maintain compatability with the arm commpage.
+ */
+#define _COMM_PAGE_USER_PAGE_SHIFT_32 _COMM_PAGE_USER_PAGE_SHIFT_64
#ifdef __ASSEMBLER__
#ifdef __COMM_PAGE_SYMBOLS
-#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \
- .org (symbol_address - (_COMM_PAGE_BASE_ADDRESS & 0xFFFFE000)) ;\
+#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(___bigcopy, _COMM_PAGE_BIGCOPY)
- 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
+.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__ */
projects / apple / xnu.git / blobdiff