#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 kNumCPUsShift 16 /* see _NumCPUs() below */
+#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
+
#ifndef __ASSEMBLER__
#include <sys/cdefs.h>
__BEGIN_DECLS
-extern int _get_cpu_capabilities( void );
+extern uint64_t _get_cpu_capabilities( void );
__END_DECLS
inline static
int _NumCPUs( void )
{
- return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
+ return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
}
#endif /* __ASSEMBLER__ */
* Because Mach VM cannot map the last page of an address space, we don't use it.
*/
-#define _COMM_PAGE32_AREA_LENGTH ( 2 * 4096 ) /* reserved length of entire comm area */
+#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 ( 2 * 4096 ) /* this is the amt actually allocated */
+#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 ( 2 * 1024 * 1024 ) /* reserved length of entire comm area (2MB) */
+#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 ( 2 * 4096 ) /* this is the amt actually populated */
+#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
/* data in the comm page */
-#define _COMM_PAGE_SIGNATURE (_COMM_PAGE_START_ADDRESS+0x000) /* first few bytes are a signature */
+#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 12 /* version of the commarea format */
+#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 */
+#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, reserved for future expansion of cpu_capabilities */
+#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_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_KDEBUG_ENABLE (_COMM_PAGE_START_ADDRESS+0x044) /* uint32_t export "kdebug_enable" to userspace */
+#define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x048) /* [0x48,0x50) 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_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 */
/* 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+0x080) /* start of text section */
+#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_PAGE_PREEMPT (_COMM_PAGE_START_ADDRESS+0x5a0) /* used by PFZ code */
-#define _COMM_PAGE_BACKOFF (_COMM_PAGE_START_ADDRESS+0x1600) /* called from PFZ */
+#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_PFZ_START (_COMM_PAGE_START_ADDRESS+0x1c00) /* start of Preemption Free Zone */
-#define _COMM_PAGE_PFZ_ENQUEUE (_COMM_PAGE_START_ADDRESS+0x1c00) /* internal routine for FIFO enqueue */
-#define _COMM_PAGE_PFZ_DEQUEUE (_COMM_PAGE_START_ADDRESS+0x1c80) /* internal routine for FIFO dequeue */
-#define _COMM_PAGE_PFZ_MUTEX_LOCK (_COMM_PAGE_START_ADDRESS+0x1d00) /* internal routine for pthread_mutex_lock() */
+#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_UNUSED6 (_COMM_PAGE_START_ADDRESS+0x1d80) /* unused space for PFZ code up to 0x1fff */
+#define _COMM_PAGE_PFZ_START (_COMM_PAGE_TEXT_START+_COMM_PAGE_PFZ_START_OFFSET)
-#define _COMM_PAGE_PFZ_END (_COMM_PAGE_START_ADDRESS+0x1fff) /* end of Preemption Free Zone */
+#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_END (_COMM_PAGE_START_ADDRESS+0x1fff) /* end of common page - insert new stuff here */
+#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
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(___pfz_mutex_lock, _COMM_PAGE_PFZ_MUTEX_LOCK)
CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END)
.data /* Required to make a well behaved symbol file */
projects / apple / xnu.git / blobdiff