CPU

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. More...
#define	SPA_VERSION_CPU   0
#define	SPA_CPU_FLAG_MMX   (1<<0)
	standard MMX More...
#define	SPA_CPU_FLAG_MMXEXT   (1<<1)
	SSE integer or AMD MMX ext. More...
#define	SPA_CPU_FLAG_3DNOW   (1<<2)
	AMD 3DNOW. More...
#define	SPA_CPU_FLAG_SSE   (1<<3)
	SSE. More...
#define	SPA_CPU_FLAG_SSE2   (1<<4)
	SSE2. More...
#define	SPA_CPU_FLAG_3DNOWEXT   (1<<5)
	AMD 3DNowExt. More...
#define	SPA_CPU_FLAG_SSE3   (1<<6)
	Prescott SSE3. More...
#define	SPA_CPU_FLAG_SSSE3   (1<<7)
	Conroe SSSE3. More...
#define	SPA_CPU_FLAG_SSE41   (1<<8)
	Penryn SSE4.1. More...
#define	SPA_CPU_FLAG_SSE42   (1<<9)
	Nehalem SSE4.2. More...
#define	SPA_CPU_FLAG_AESNI   (1<<10)
	Advanced Encryption Standard. More...
#define	SPA_CPU_FLAG_AVX   (1<<11)
	AVX. More...
#define	SPA_CPU_FLAG_XOP   (1<<12)
	Bulldozer XOP. More...
#define	SPA_CPU_FLAG_FMA4   (1<<13)
	Bulldozer FMA4. More...
#define	SPA_CPU_FLAG_CMOV   (1<<14)
	supports cmov More...
#define	SPA_CPU_FLAG_AVX2   (1<<15)
	AVX2. More...
#define	SPA_CPU_FLAG_FMA3   (1<<16)
	Haswell FMA3. More...
#define	SPA_CPU_FLAG_BMI1   (1<<17)
	Bit Manipulation Instruction Set 1. More...
#define	SPA_CPU_FLAG_BMI2   (1<<18)
	Bit Manipulation Instruction Set 2. More...
#define	SPA_CPU_FLAG_AVX512   (1<<19)
	AVX-512. More...
#define	SPA_CPU_FLAG_SLOW_UNALIGNED   (1<<20)
	unaligned loads/stores are slow More...
#define	SPA_CPU_FLAG_ALTIVEC   (1<<0)
	standard More...
#define	SPA_CPU_FLAG_VSX   (1<<1)
	ISA 2.06. More...
#define	SPA_CPU_FLAG_POWER8   (1<<2)
	ISA 2.07. More...
#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. More...
#define	spa_cpu_method(o, method, version, ...)
#define	spa_cpu_get_flags(c)   spa_cpu_method(c, get_flags, 0)
	get CPU flags More...
#define	spa_cpu_force_flags(c, f)   spa_cpu_method(c, force_flags, 0, f)
	force CPU flags, use SPA_CPU_FORCE_AUTODETECT to autodetect CPU flags More...
#define	spa_cpu_get_count(c)   spa_cpu_method(c, get_count, 0)
	get number of CPU cores More...
#define	spa_cpu_get_max_align(c)   spa_cpu_method(c, get_max_align, 0)
	get maximum required alignment of data More...
#define	spa_cpu_get_vm_type(c)   spa_cpu_method(c, get_vm_type, 1)
#define	spa_cpu_zero_denormals(c, e)   spa_cpu_method(c, zero_denormals, 2, e)
#define	SPA_KEY_CPU_FORCE   "cpu.force"
	keys can be given when initializing the cpu handle More...
#define	SPA_KEY_CPU_VM_TYPE   "cpu.vm.type"
	force a VM type More...
#define	SPA_KEY_CPU_ZERO_DENORMALS   "cpu.zero.denormals"
	zero denormals More...

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

)

spa_cpu_method(c, get_flags, 0)

get CPU flags

See also

spa_cpu_methods.get_flags

spa_cpu_force_flags

#define spa_cpu_force_flags	(		c,
			f
	)		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

)

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

)

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

)

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
	)		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