cpu_capabilities.h [plain text]
#ifdef PRIVATE
#ifndef _PPC_CPU_CAPABILITIES_H
#define _PPC_CPU_CAPABILITIES_H
#ifndef __ASSEMBLER__
extern int _cpu_capabilities;
#endif
#define kHasAltivec 0x00000001
#define k64Bit 0x00000002 // 64-bit GPRs
#define kCache32 0x00000004 // cache line size is 32 bytes
#define kCache64 0x00000008
#define kCache128 0x00000010
#define kDcbaRecommended 0x00000020 // PPC: dcba is available and recommended
#define kDcbaAvailable 0x00000040 // PPC: dcba is available (but may or may not be recommended)
#define kDataStreamsRecommended 0x00000080 // PPC: dst, dstt, dstst, dss, and dssall instructions available and recommended
#define kDataStreamsAvailable 0x00000100 // PPC: dst, dstt, dstst, dss, and dssall instructions available (may or may not be rec'd)
#define kDcbtStreamsRecommended 0x00000200 // PPC: enhanced dcbt instruction available and recommended
#define kDcbtStreamsAvailable 0x00000400 // PPC: enhanced dcbt instruction available (but may or may not be recommended)
#define kFastThreadLocalStorage 0x00000800 // 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 kNumCPUsShift 16 // see _NumCPUs() below
#define kHasGraphicsOps 0x08000000 // PPC: has fres, frsqrte, and fsel instructions
#define kHasStfiwx 0x10000000 // PPC: has stfiwx instruction
#define kHasFsqrt 0x20000000 // PPC: has fsqrt and fsqrts instructions
#ifndef __ASSEMBLER__
static __inline__ int _NumCPUs( void ) { return (_cpu_capabilities & kNumCPUs) >> kNumCPUsShift; }
#endif
#define _COMM_PAGE_BASE_ADDRESS (-8*4096) // start at page -8, ie 0xFFFF8000
#define _COMM_PAGE_AREA_LENGTH ( 7*4096) // reserved length of entire comm area
#define _COMM_PAGE_AREA_USED ( 2*4096) // we use two pages so far
#define _COMM_PAGE32_BASE_ADDRESS ( _COMM_PAGE_BASE_ADDRESS )
#define _COMM_PAGE64_BASE_ADDRESS ( _COMM_PAGE_BASE_ADDRESS )
#define _COMM_PAGE32_AREA_LENGTH ( _COMM_PAGE_AREA_LENGTH )
#define _COMM_PAGE64_AREA_LENGTH ( _COMM_PAGE_AREA_LENGTH )
#define _COMM_PAGE32_AREA_USED ( _COMM_PAGE_AREA_USED )
#define _COMM_PAGE64_AREA_USED ( _COMM_PAGE_AREA_USED )
#define _OBJC_PAGE_BASE_ADDRESS (-20*4096) // start at page -20, ie 0xFFFEC000
#define _COMM_PAGE32_OBJC_SIZE 0ULL
#define _COMM_PAGE32_OBJC_BASE 0ULL
#if 0
#define _COMM_PAGE64_OBJC_SIZE (4 * 4096)
#define _COMM_PAGE64_OBJC_BASE (_OBJC_PAGE_BASE_ADDRESS)
#else
#define _COMM_PAGE64_OBJC_SIZE 0ULL
#define _COMM_PAGE64_OBJC_BASE 0ULL
#endif
#define _COMM_PAGE_SIGNATURE (_COMM_PAGE_BASE_ADDRESS+0x000) // first few bytes are a signature
#define _COMM_PAGE_VERSION (_COMM_PAGE_BASE_ADDRESS+0x01E) // 16-bit version#
#define _COMM_PAGE_THIS_VERSION 2 // this is version 2 of the commarea format
#define _COMM_PAGE_CPU_CAPABILITIES (_COMM_PAGE_BASE_ADDRESS+0x020) // mirror of extern int _cpu_capabilities
#define _COMM_PAGE_NCPUS (_COMM_PAGE_BASE_ADDRESS+0x021) // number of configured CPUs
#define _COMM_PAGE_ALTIVEC (_COMM_PAGE_BASE_ADDRESS+0x024) // nonzero if Altivec available
#define _COMM_PAGE_64_BIT (_COMM_PAGE_BASE_ADDRESS+0x025) // nonzero if 64-bit processor
#define _COMM_PAGE_CACHE_LINESIZE (_COMM_PAGE_BASE_ADDRESS+0x026) // cache line size (16-bit field)
#define _COMM_PAGE_UNUSED1 (_COMM_PAGE_BASE_ADDRESS+0x028) // 24 unused bytes
#define _COMM_PAGE_2_TO_52 (_COMM_PAGE_BASE_ADDRESS+0x040) // double float constant 2**52
#define _COMM_PAGE_10_TO_6 (_COMM_PAGE_BASE_ADDRESS+0x048) // double float constant 10**6
#define _COMM_PAGE_MAGIC_FE (_COMM_PAGE_BASE_ADDRESS+0x050) // magic constant 0xFEFEFEFEFEFEFEFF (to find 0s)
#define _COMM_PAGE_MAGIC_80 (_COMM_PAGE_BASE_ADDRESS+0x058) // magic constant 0x8080808080808080 (to find 0s)
#define _COMM_PAGE_TIMEBASE (_COMM_PAGE_BASE_ADDRESS+0x060) // used by gettimeofday()
#define _COMM_PAGE_TIMESTAMP (_COMM_PAGE_BASE_ADDRESS+0x068) // used by gettimeofday()
#define _COMM_PAGE_SEC_PER_TICK (_COMM_PAGE_BASE_ADDRESS+0x070) // used by gettimeofday()
#define _COMM_PAGE_COMPARE_AND_SWAP32 (_COMM_PAGE_BASE_ADDRESS+0x080) // compare-and-swap word, no barrier
#define _COMM_PAGE_COMPARE_AND_SWAP64 (_COMM_PAGE_BASE_ADDRESS+0x0c0) // compare-and-swap doubleword, no barrier
#define _COMM_PAGE_ENQUEUE (_COMM_PAGE_BASE_ADDRESS+0x100) // enqueue
#define _COMM_PAGE_DEQUEUE (_COMM_PAGE_BASE_ADDRESS+0x140) // dequeue
#define _COMM_PAGE_MEMORY_BARRIER (_COMM_PAGE_BASE_ADDRESS+0x180) // memory barrier
#define _COMM_PAGE_ATOMIC_ADD32 (_COMM_PAGE_BASE_ADDRESS+0x1a0) // add atomic word
#define _COMM_PAGE_ATOMIC_ADD64 (_COMM_PAGE_BASE_ADDRESS+0x1c0) // add atomic doubleword
#define _COMM_PAGE_UNUSED3 (_COMM_PAGE_BASE_ADDRESS+0x1e0) // 32 unused bytes
#define _COMM_PAGE_ABSOLUTE_TIME (_COMM_PAGE_BASE_ADDRESS+0x200) // mach_absolute_time()
#define _COMM_PAGE_SPINLOCK_TRY (_COMM_PAGE_BASE_ADDRESS+0x220) // spinlock_try()
#define _COMM_PAGE_SPINLOCK_LOCK (_COMM_PAGE_BASE_ADDRESS+0x260) // spinlock_lock()
#define _COMM_PAGE_SPINLOCK_UNLOCK (_COMM_PAGE_BASE_ADDRESS+0x2a0) // spinlock_unlock()
#define _COMM_PAGE_PTHREAD_GETSPECIFIC (_COMM_PAGE_BASE_ADDRESS+0x2c0) // pthread_getspecific()
#define _COMM_PAGE_GETTIMEOFDAY (_COMM_PAGE_BASE_ADDRESS+0x2e0) // used by gettimeofday()
#define _COMM_PAGE_FLUSH_DCACHE (_COMM_PAGE_BASE_ADDRESS+0x4e0) // sys_dcache_flush()
#define _COMM_PAGE_FLUSH_ICACHE (_COMM_PAGE_BASE_ADDRESS+0x520) // sys_icache_invalidate()
#define _COMM_PAGE_PTHREAD_SELF (_COMM_PAGE_BASE_ADDRESS+0x580) // pthread_self()
#define _COMM_PAGE_UNUSED4 (_COMM_PAGE_BASE_ADDRESS+0x5a0) // 32 unused bytes
#define _COMM_PAGE_RELINQUISH (_COMM_PAGE_BASE_ADDRESS+0x5c0) // used by spinlocks
#define _COMM_PAGE_UNUSED5 (_COMM_PAGE_BASE_ADDRESS+0x5e0) // 32 unused bytes
#define _COMM_PAGE_BZERO (_COMM_PAGE_BASE_ADDRESS+0x600) // bzero()
#define _COMM_PAGE_BCOPY (_COMM_PAGE_BASE_ADDRESS+0x780) // bcopy()
#define _COMM_PAGE_MEMCPY (_COMM_PAGE_BASE_ADDRESS+0x7a0) // memcpy()
#define _COMM_PAGE_MEMMOVE (_COMM_PAGE_BASE_ADDRESS+0x7a0) // memmove()
#define _COMM_PAGE_COMPARE_AND_SWAP32B (_COMM_PAGE_BASE_ADDRESS+0xf80) // compare-and-swap word w barrier
#define _COMM_PAGE_COMPARE_AND_SWAP64B (_COMM_PAGE_BASE_ADDRESS+0xfc0) // compare-and-swap doubleword w barrier
#define _COMM_PAGE_MEMSET_PATTERN (_COMM_PAGE_BASE_ADDRESS+0x1000)// used by nonzero memset()
#define _COMM_PAGE_BIGCOPY (_COMM_PAGE_BASE_ADDRESS+0x1140)// very-long-operand copies
#define _COMM_PAGE_END (_COMM_PAGE_BASE_ADDRESS+0x1700)// end of commpage area
#ifdef __ASSEMBLER__
#ifdef __COMM_PAGE_SYMBOLS
#define CREATE_COMM_PAGE_SYMBOL(symbol_name, symbol_address) \
.org (symbol_address - _COMM_PAGE_BASE_ADDRESS) @\
symbol_name: nop
.text
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(___bzero, _COMM_PAGE_BZERO)
CREATE_COMM_PAGE_SYMBOL(___bcopy, _COMM_PAGE_BCOPY)
CREATE_COMM_PAGE_SYMBOL(___memcpy, _COMM_PAGE_MEMCPY)
CREATE_COMM_PAGE_SYMBOL(___compare_and_swap32b, _COMM_PAGE_COMPARE_AND_SWAP32B)
CREATE_COMM_PAGE_SYMBOL(___compare_and_swap64b, _COMM_PAGE_COMPARE_AND_SWAP64B)
CREATE_COMM_PAGE_SYMBOL(___memset_pattern, _COMM_PAGE_MEMSET_PATTERN)
CREATE_COMM_PAGE_SYMBOL(___bigcopy, _COMM_PAGE_BIGCOPY)
CREATE_COMM_PAGE_SYMBOL(___end_comm_page, _COMM_PAGE_END)
.data .long 0
#endif
#endif
#endif
#endif