xnu-2782.10.72.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 a820ea7aa442cabbfdda9476a84b67011d0c189c..46f08196ecb4bd0222c4d51ddec75502590724c3 100644 (file)
--- a/osfmk/i386/cpu_capabilities.h
+++ b/osfmk/i386/cpu_capabilities.h
@@ -57,20 +57,33 @@
 #define        kSlow                           0x00004000      /* tsc < nanosecond */
 #define        kUP                             0x00008000      /* set if (kNumCPUs == 1) */
 #define        kNumCPUs                        0x00FF0000      /* number of CPUs (see _NumCPUs() below) */
 #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        kHasAVX1_0                      0x01000000

-#define        kNumCPUsShift                   16              /* see _NumCPUs() below */
+#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
+

 
 #ifndef        __ASSEMBLER__
 #include <sys/cdefs.h>
 
 __BEGIN_DECLS
 
 #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 )
 {
 __END_DECLS
 
 inline static
 int _NumCPUs( void )
 {

-       return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;
+       return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift;

 }
 
 #endif /* __ASSEMBLER__ */
 }
 
 #endif /* __ASSEMBLER__ */


@@ -93,20 +106,20 @@ 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        ( 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_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_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 */
 #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
 
 /* no need for an Objective-C area on Intel */
 #define _COMM_PAGE32_OBJC_SIZE         0ULL


@@ -148,13 +161,16 @@ int _NumCPUs( void )
 
 /* data in the comm page */
  
 
 /* 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_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_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_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) */


@@ -168,7 +184,8 @@ int _NumCPUs( void )
 #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_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_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() */


@@ -179,6 +196,12 @@ int _NumCPUs( void )
 #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_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 */
 
 /* 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 */


@@ -196,22 +219,38 @@ int _NumCPUs( void )
  /* 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 */
  /* 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
 
 /* _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


@@ -232,7 +271,6 @@ symbol_name: nop
        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(___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 */
        CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END)
 
        .data           /* Required to make a well behaved symbol file */