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) spa_cpu_method(c, get_flags, 0)
	get CPU 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

#define	spa_cpu_get_count(c) spa_cpu_method(c, get_count, 0)
	get number of CPU cores

#define	spa_cpu_get_max_align(c) spa_cpu_method(c, get_max_align, 0)
	get maximum required alignment of data

#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

#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 ) 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

Function Documentation

◆ spa_cpu_vm_type_to_string()

static const char * spa_cpu_vm_type_to_string ( uint32_t vm_type )

inlinestatic

Files

Data Structures

Macros

Functions