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Files | Data Structures | Macros | Functions
CPU
SPA » Support

Querying CPU properties More...

Files

file  cpu.h
 spa/support/cpu.h
 

Data Structures

struct  spa_cpu
 
struct  spa_cpu_methods
 methods More...
 

Macros

#define SPA_TYPE_INTERFACE_CPU   SPA_TYPE_INFO_INTERFACE_BASE "CPU"
 The CPU features interface.
 
#define SPA_VERSION_CPU   0
 
#define SPA_CPU_FLAG_MMX   (1<<0)
 standard MMX
 
#define SPA_CPU_FLAG_MMXEXT   (1<<1)
 SSE integer or AMD MMX ext.
 
#define SPA_CPU_FLAG_3DNOW   (1<<2)
 AMD 3DNOW.
 
#define SPA_CPU_FLAG_SSE   (1<<3)
 SSE.
 
#define SPA_CPU_FLAG_SSE2   (1<<4)
 SSE2.
 
#define SPA_CPU_FLAG_3DNOWEXT   (1<<5)
 AMD 3DNowExt.
 
#define SPA_CPU_FLAG_SSE3   (1<<6)
 Prescott SSE3.
 
#define SPA_CPU_FLAG_SSSE3   (1<<7)
 Conroe SSSE3.
 
#define SPA_CPU_FLAG_SSE41   (1<<8)
 Penryn SSE4.1.
 
#define SPA_CPU_FLAG_SSE42   (1<<9)
 Nehalem SSE4.2.
 
#define SPA_CPU_FLAG_AESNI   (1<<10)
 Advanced Encryption Standard.
 
#define SPA_CPU_FLAG_AVX   (1<<11)
 AVX.
 
#define SPA_CPU_FLAG_XOP   (1<<12)
 Bulldozer XOP.
 
#define SPA_CPU_FLAG_FMA4   (1<<13)
 Bulldozer FMA4.
 
#define SPA_CPU_FLAG_CMOV   (1<<14)
 supports cmov
 
#define SPA_CPU_FLAG_AVX2   (1<<15)
 AVX2.
 
#define SPA_CPU_FLAG_FMA3   (1<<16)
 Haswell FMA3.
 
#define SPA_CPU_FLAG_BMI1   (1<<17)
 Bit Manipulation Instruction Set 1.
 
#define SPA_CPU_FLAG_BMI2   (1<<18)
 Bit Manipulation Instruction Set 2.
 
#define SPA_CPU_FLAG_AVX512   (1<<19)
 AVX-512.
 
#define SPA_CPU_FLAG_SLOW_UNALIGNED   (1<<20)
 unaligned loads/stores are slow
 
#define SPA_CPU_FLAG_ALTIVEC   (1<<0)
 standard
 
#define SPA_CPU_FLAG_VSX   (1<<1)
 ISA 2.06.
 
#define SPA_CPU_FLAG_POWER8   (1<<2)
 ISA 2.07.
 
#define SPA_CPU_FLAG_ARMV5TE   (1 << 0)
 
#define SPA_CPU_FLAG_ARMV6   (1 << 1)
 
#define SPA_CPU_FLAG_ARMV6T2   (1 << 2)
 
#define SPA_CPU_FLAG_VFP   (1 << 3)
 
#define SPA_CPU_FLAG_VFPV3   (1 << 4)
 
#define SPA_CPU_FLAG_NEON   (1 << 5)
 
#define SPA_CPU_FLAG_ARMV8   (1 << 6)
 
#define SPA_CPU_FORCE_AUTODETECT   ((uint32_t)-1)
 
#define SPA_CPU_VM_NONE   (0)
 
#define SPA_CPU_VM_OTHER   (1 << 0)
 
#define SPA_CPU_VM_KVM   (1 << 1)
 
#define SPA_CPU_VM_QEMU   (1 << 2)
 
#define SPA_CPU_VM_BOCHS   (1 << 3)
 
#define SPA_CPU_VM_XEN   (1 << 4)
 
#define SPA_CPU_VM_UML   (1 << 5)
 
#define SPA_CPU_VM_VMWARE   (1 << 6)
 
#define SPA_CPU_VM_ORACLE   (1 << 7)
 
#define SPA_CPU_VM_MICROSOFT   (1 << 8)
 
#define SPA_CPU_VM_ZVM   (1 << 9)
 
#define SPA_CPU_VM_PARALLELS   (1 << 10)
 
#define SPA_CPU_VM_BHYVE   (1 << 11)
 
#define SPA_CPU_VM_QNX   (1 << 12)
 
#define SPA_CPU_VM_ACRN   (1 << 13)
 
#define SPA_CPU_VM_POWERVM   (1 << 14)
 
#define SPA_VERSION_CPU_METHODS   2
 the version of the methods.
 
#define spa_cpu_method(o, method, version, ...)
 
#define spa_cpu_get_flags(c)
 get CPU flags
 
#define spa_cpu_force_flags(c, f)
 force CPU flags, use SPA_CPU_FORCE_AUTODETECT to autodetect CPU flags
 
#define spa_cpu_get_count(c)
 get number of CPU cores
 
#define spa_cpu_get_max_align(c)
 get maximum required alignment of data
 
#define spa_cpu_get_vm_type(c)
 
#define spa_cpu_zero_denormals(c, e)
 
#define SPA_KEY_CPU_FORCE   "cpu.force"
 keys can be given when initializing the cpu handle
 
#define SPA_KEY_CPU_VM_TYPE   "cpu.vm.type"
 force a VM type
 
#define SPA_KEY_CPU_ZERO_DENORMALS   "cpu.zero.denormals"
 zero denormals
 

Functions

static const char * spa_cpu_vm_type_to_string (uint32_t vm_type)
 

Detailed Description

Querying CPU properties

Macro Definition Documentation

◆ SPA_TYPE_INTERFACE_CPU

#define SPA_TYPE_INTERFACE_CPU   SPA_TYPE_INFO_INTERFACE_BASE "CPU"

The CPU features interface.

◆ SPA_VERSION_CPU

#define SPA_VERSION_CPU   0

◆ SPA_CPU_FLAG_MMX

#define SPA_CPU_FLAG_MMX   (1<<0)

standard MMX

◆ SPA_CPU_FLAG_MMXEXT

#define SPA_CPU_FLAG_MMXEXT   (1<<1)

SSE integer or AMD MMX ext.

◆ SPA_CPU_FLAG_3DNOW

#define SPA_CPU_FLAG_3DNOW   (1<<2)

AMD 3DNOW.

◆ SPA_CPU_FLAG_SSE

#define SPA_CPU_FLAG_SSE   (1<<3)

SSE.

◆ SPA_CPU_FLAG_SSE2

#define SPA_CPU_FLAG_SSE2   (1<<4)

SSE2.

◆ SPA_CPU_FLAG_3DNOWEXT

#define SPA_CPU_FLAG_3DNOWEXT   (1<<5)

AMD 3DNowExt.

◆ SPA_CPU_FLAG_SSE3

#define SPA_CPU_FLAG_SSE3   (1<<6)

Prescott SSE3.

◆ SPA_CPU_FLAG_SSSE3

#define SPA_CPU_FLAG_SSSE3   (1<<7)

Conroe SSSE3.

◆ SPA_CPU_FLAG_SSE41

#define SPA_CPU_FLAG_SSE41   (1<<8)

Penryn SSE4.1.

◆ SPA_CPU_FLAG_SSE42

#define SPA_CPU_FLAG_SSE42   (1<<9)

Nehalem SSE4.2.

◆ SPA_CPU_FLAG_AESNI

#define SPA_CPU_FLAG_AESNI   (1<<10)

Advanced Encryption Standard.

◆ SPA_CPU_FLAG_AVX

#define SPA_CPU_FLAG_AVX   (1<<11)

AVX.

◆ SPA_CPU_FLAG_XOP

#define SPA_CPU_FLAG_XOP   (1<<12)

Bulldozer XOP.

◆ SPA_CPU_FLAG_FMA4

#define SPA_CPU_FLAG_FMA4   (1<<13)

Bulldozer FMA4.

◆ SPA_CPU_FLAG_CMOV

#define SPA_CPU_FLAG_CMOV   (1<<14)

supports cmov

◆ SPA_CPU_FLAG_AVX2

#define SPA_CPU_FLAG_AVX2   (1<<15)

AVX2.

◆ SPA_CPU_FLAG_FMA3

#define SPA_CPU_FLAG_FMA3   (1<<16)

Haswell FMA3.

◆ SPA_CPU_FLAG_BMI1

#define SPA_CPU_FLAG_BMI1   (1<<17)

Bit Manipulation Instruction Set 1.

◆ SPA_CPU_FLAG_BMI2

#define SPA_CPU_FLAG_BMI2   (1<<18)

Bit Manipulation Instruction Set 2.

◆ SPA_CPU_FLAG_AVX512

#define SPA_CPU_FLAG_AVX512   (1<<19)

AVX-512.

◆ SPA_CPU_FLAG_SLOW_UNALIGNED

#define SPA_CPU_FLAG_SLOW_UNALIGNED   (1<<20)

unaligned loads/stores are slow

◆ SPA_CPU_FLAG_ALTIVEC

#define SPA_CPU_FLAG_ALTIVEC   (1<<0)

standard

◆ SPA_CPU_FLAG_VSX

#define SPA_CPU_FLAG_VSX   (1<<1)

ISA 2.06.

◆ SPA_CPU_FLAG_POWER8

#define SPA_CPU_FLAG_POWER8   (1<<2)

ISA 2.07.

◆ SPA_CPU_FLAG_ARMV5TE

#define SPA_CPU_FLAG_ARMV5TE   (1 << 0)

◆ SPA_CPU_FLAG_ARMV6

#define SPA_CPU_FLAG_ARMV6   (1 << 1)

◆ SPA_CPU_FLAG_ARMV6T2

#define SPA_CPU_FLAG_ARMV6T2   (1 << 2)

◆ SPA_CPU_FLAG_VFP

#define SPA_CPU_FLAG_VFP   (1 << 3)

◆ SPA_CPU_FLAG_VFPV3

#define SPA_CPU_FLAG_VFPV3   (1 << 4)

◆ SPA_CPU_FLAG_NEON

#define SPA_CPU_FLAG_NEON   (1 << 5)

◆ SPA_CPU_FLAG_ARMV8

#define SPA_CPU_FLAG_ARMV8   (1 << 6)

◆ SPA_CPU_FORCE_AUTODETECT

#define SPA_CPU_FORCE_AUTODETECT   ((uint32_t)-1)

◆ SPA_CPU_VM_NONE

#define SPA_CPU_VM_NONE   (0)

◆ SPA_CPU_VM_OTHER

#define SPA_CPU_VM_OTHER   (1 << 0)

◆ SPA_CPU_VM_KVM

#define SPA_CPU_VM_KVM   (1 << 1)

◆ SPA_CPU_VM_QEMU

#define SPA_CPU_VM_QEMU   (1 << 2)

◆ SPA_CPU_VM_BOCHS

#define SPA_CPU_VM_BOCHS   (1 << 3)

◆ SPA_CPU_VM_XEN

#define SPA_CPU_VM_XEN   (1 << 4)

◆ SPA_CPU_VM_UML

#define SPA_CPU_VM_UML   (1 << 5)

◆ SPA_CPU_VM_VMWARE

#define SPA_CPU_VM_VMWARE   (1 << 6)

◆ SPA_CPU_VM_ORACLE

#define SPA_CPU_VM_ORACLE   (1 << 7)

◆ SPA_CPU_VM_MICROSOFT

#define SPA_CPU_VM_MICROSOFT   (1 << 8)

◆ SPA_CPU_VM_ZVM

#define SPA_CPU_VM_ZVM   (1 << 9)

◆ SPA_CPU_VM_PARALLELS

#define SPA_CPU_VM_PARALLELS   (1 << 10)

◆ SPA_CPU_VM_BHYVE

#define SPA_CPU_VM_BHYVE   (1 << 11)

◆ SPA_CPU_VM_QNX

#define SPA_CPU_VM_QNX   (1 << 12)

◆ SPA_CPU_VM_ACRN

#define SPA_CPU_VM_ACRN   (1 << 13)

◆ SPA_CPU_VM_POWERVM

#define SPA_CPU_VM_POWERVM   (1 << 14)

◆ SPA_VERSION_CPU_METHODS

#define SPA_VERSION_CPU_METHODS   2

the version of the methods.

This can be used to expand this structure in the future

◆ spa_cpu_method

#define spa_cpu_method ( o,
method,
version,
... )

◆ spa_cpu_get_flags

#define spa_cpu_get_flags ( c)
Value:
spa_cpu_method(c, get_flags, 0)
spa_cpu_method
#define spa_cpu_method(o, method, version,...)
Definition cpu.h:215

get CPU flags

See also
spa_cpu_methods.get_flags

◆ spa_cpu_force_flags

#define spa_cpu_force_flags ( c,
f )
Value:
spa_cpu_method(c, force_flags, 0, f)

force CPU flags, use SPA_CPU_FORCE_AUTODETECT to autodetect CPU flags

See also
spa_cpu_methods.force_flags

◆ spa_cpu_get_count

#define spa_cpu_get_count ( c)
Value:
spa_cpu_method(c, get_count, 0)

get number of CPU cores

See also
spa_cpu_methods.get_count

◆ spa_cpu_get_max_align

#define spa_cpu_get_max_align ( c)
Value:
spa_cpu_method(c, get_max_align, 0)

get maximum required alignment of data

See also
spa_cpu_methods.get_max_align

◆ spa_cpu_get_vm_type

#define spa_cpu_get_vm_type ( c)
Value:
spa_cpu_method(c, get_vm_type, 1)

See also
spa_cpu_methods.get_vm_type

◆ spa_cpu_zero_denormals

#define spa_cpu_zero_denormals ( c,
e )
Value:
spa_cpu_method(c, zero_denormals, 2, e)

See also
spa_cpu_methods.zero_denormals

◆ SPA_KEY_CPU_FORCE

#define SPA_KEY_CPU_FORCE   "cpu.force"

keys can be given when initializing the cpu handle

force cpu flags

◆ SPA_KEY_CPU_VM_TYPE

#define SPA_KEY_CPU_VM_TYPE   "cpu.vm.type"

force a VM type

◆ SPA_KEY_CPU_ZERO_DENORMALS

#define SPA_KEY_CPU_ZERO_DENORMALS   "cpu.zero.denormals"

zero denormals

Function Documentation

◆ spa_cpu_vm_type_to_string()

static const char * spa_cpu_vm_type_to_string ( uint32_t vm_type)
inlinestatic