X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/7ddcb079202367355dddccdfa4318e57d50318be..4d15aeb193b2c68f1d38666c317f8d3734f5f083:/osfmk/i386/cpu_capabilities.h diff --git a/osfmk/i386/cpu_capabilities.h b/osfmk/i386/cpu_capabilities.h index eee6a8173..0f1b7dadd 100644 --- a/osfmk/i386/cpu_capabilities.h +++ b/osfmk/i386/cpu_capabilities.h @@ -57,23 +57,35 @@ #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 +#define kHasMPX 0x0000001000000000ULL +#define kHasSGX 0x0000002000000000ULL + #ifndef __ASSEMBLER__ #include __BEGIN_DECLS -extern int _get_cpu_capabilities( void ); +extern uint64_t _get_cpu_capabilities( void ); __END_DECLS -inline static +__inline static int _NumCPUs( void ) { - return (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift; + return (int) (_get_cpu_capabilities() & kNumCPUs) >> kNumCPUsShift; } #endif /* __ASSEMBLER__ */ @@ -96,20 +108,20 @@ int _NumCPUs( void ) * 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 @@ -151,13 +163,16 @@ int _NumCPUs( void ) /* 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) */ @@ -171,7 +186,10 @@ 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_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_ATM_DIAGNOSTIC_CONFIG (_COMM_PAGE_START_ADDRESS+0x48) /* uint32_t export "atm_diagnostic_config" to userspace */ + +#define _COMM_PAGE_UNUSED2 (_COMM_PAGE_START_ADDRESS+0x04C) /* [0x4C,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() */ @@ -182,6 +200,16 @@ 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() */ + +/* 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_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 */ @@ -199,22 +227,40 @@ 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 */ -#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_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_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_RET (_COMM_PAGE_TEXT_START+_COMM_TEXT_RET_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 @@ -235,7 +281,6 @@ 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(___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 */