cpu-features.h File Reference

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Enumerations
enum	{   ANDROID_CPU_ARM_FEATURE_ARMv7 = (1 << 0), ANDROID_CPU_ARM_FEATURE_VFPv3 = (1 << 1), ANDROID_CPU_ARM_FEATURE_NEON = (1 << 2), ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3),   ANDROID_CPU_ARM_FEATURE_VFPv2 = (1 << 4), ANDROID_CPU_ARM_FEATURE_VFP_D32 = (1 << 5), ANDROID_CPU_ARM_FEATURE_VFP_FP16 = (1 << 6), ANDROID_CPU_ARM_FEATURE_VFP_FMA = (1 << 7),   ANDROID_CPU_ARM_FEATURE_NEON_FMA = (1 << 8), ANDROID_CPU_ARM_FEATURE_IDIV_ARM = (1 << 9), ANDROID_CPU_ARM_FEATURE_IDIV_THUMB2 = (1 << 10), ANDROID_CPU_ARM_FEATURE_iWMMXt = (1 << 11) }
enum	{ ANDROID_CPU_X86_FEATURE_SSSE3 = (1 << 0), ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1), ANDROID_CPU_X86_FEATURE_MOVBE = (1 << 2) }
enum	AndroidCpuFamily {   ANDROID_CPU_FAMILY_UNKNOWN = 0, ANDROID_CPU_FAMILY_ARM, ANDROID_CPU_FAMILY_X86, ANDROID_CPU_FAMILY_MIPS,   ANDROID_CPU_FAMILY_ARM64, ANDROID_CPU_FAMILY_X86_64, ANDROID_CPU_FAMILY_MIPS64, ANDROID_CPU_FAMILY_MAX }

Functions
int	android_getCpuCount (void)
AndroidCpuFamily	android_getCpuFamily (void)
uint64_t	android_getCpuFeatures (void)
uint32_t	android_getCpuIdArm (void)
int	android_setCpu (int cpu_count, uint64_t cpu_features)
int	android_setCpuArm (int cpu_count, uint64_t cpu_features, uint32_t cpu_id)

Enumeration Type Documentation

anonymous enum

Enumerator
ANDROID_CPU_ARM_FEATURE_ARMv7
ANDROID_CPU_ARM_FEATURE_VFPv3
ANDROID_CPU_ARM_FEATURE_NEON
ANDROID_CPU_ARM_FEATURE_LDREX_STREX
ANDROID_CPU_ARM_FEATURE_VFPv2
ANDROID_CPU_ARM_FEATURE_VFP_D32
ANDROID_CPU_ARM_FEATURE_VFP_FP16
ANDROID_CPU_ARM_FEATURE_VFP_FMA
ANDROID_CPU_ARM_FEATURE_NEON_FMA
ANDROID_CPU_ARM_FEATURE_IDIV_ARM
ANDROID_CPU_ARM_FEATURE_IDIV_THUMB2
ANDROID_CPU_ARM_FEATURE_iWMMXt

Definition at line 189 of file cpu-features.h.

     {
    ANDROID_CPU_ARM_FEATURE_ARMv7       = (1 << 0),
    ANDROID_CPU_ARM_FEATURE_VFPv3       = (1 << 1),
    ANDROID_CPU_ARM_FEATURE_NEON        = (1 << 2),
    ANDROID_CPU_ARM_FEATURE_LDREX_STREX = (1 << 3),
    ANDROID_CPU_ARM_FEATURE_VFPv2       = (1 << 4),
    ANDROID_CPU_ARM_FEATURE_VFP_D32     = (1 << 5),
    ANDROID_CPU_ARM_FEATURE_VFP_FP16    = (1 << 6),
    ANDROID_CPU_ARM_FEATURE_VFP_FMA     = (1 << 7),
    ANDROID_CPU_ARM_FEATURE_NEON_FMA    = (1 << 8),
    ANDROID_CPU_ARM_FEATURE_IDIV_ARM    = (1 << 9),
    ANDROID_CPU_ARM_FEATURE_IDIV_THUMB2 = (1 << 10),
    ANDROID_CPU_ARM_FEATURE_iWMMXt      = (1 << 11),
};

anonymous enum

Enumerator
ANDROID_CPU_X86_FEATURE_SSSE3
ANDROID_CPU_X86_FEATURE_POPCNT
ANDROID_CPU_X86_FEATURE_MOVBE

Definition at line 207 of file cpu-features.h.

     {
    ANDROID_CPU_X86_FEATURE_SSSE3  = (1 << 0),
    ANDROID_CPU_X86_FEATURE_POPCNT = (1 << 1),
    ANDROID_CPU_X86_FEATURE_MOVBE  = (1 << 2),
};

enum AndroidCpuFamily

Enumerator
ANDROID_CPU_FAMILY_UNKNOWN
ANDROID_CPU_FAMILY_ARM
ANDROID_CPU_FAMILY_X86
ANDROID_CPU_FAMILY_MIPS
ANDROID_CPU_FAMILY_ARM64
ANDROID_CPU_FAMILY_X86_64
ANDROID_CPU_FAMILY_MIPS64
ANDROID_CPU_FAMILY_MAX

Definition at line 39 of file cpu-features.h.

             {
    ANDROID_CPU_FAMILY_UNKNOWN = 0,
    ANDROID_CPU_FAMILY_ARM,
    ANDROID_CPU_FAMILY_X86,
    ANDROID_CPU_FAMILY_MIPS,
    ANDROID_CPU_FAMILY_ARM64,
    ANDROID_CPU_FAMILY_X86_64,
    ANDROID_CPU_FAMILY_MIPS64,

    ANDROID_CPU_FAMILY_MAX  /* do not remove */

} AndroidCpuFamily;

Function Documentation

int android_getCpuCount

(

void

)

Definition at line 935 of file cpu-features.c.

{
    pthread_once(&g_once, android_cpuInit);
    return g_cpuCount;
}

AndroidCpuFamily android_getCpuFamily

(

void

)

Definition at line 919 of file cpu-features.c.

{
    pthread_once(&g_once, android_cpuInit);
    return g_cpuFamily;
}

uint64_t android_getCpuFeatures

(

void

)

Definition at line 927 of file cpu-features.c.

{
    pthread_once(&g_once, android_cpuInit);
    return g_cpuFeatures;
}

uint32_t android_getCpuIdArm

(

void

)

Definition at line 964 of file cpu-features.c.

{
    pthread_once(&g_once, android_cpuInit);
    return g_cpuIdArm;
}

int android_setCpu	(	int	cpu_count,
		uint64_t	cpu_features
	)

Definition at line 948 of file cpu-features.c.

{
    /* Fail if the library was already initialized. */
    if (g_inited)
        return 0;

    android_cpuInitFamily();
    g_cpuCount = (cpu_count <= 0 ? 1 : cpu_count);
    g_cpuFeatures = cpu_features;
    pthread_once(&g_once, android_cpuInitDummy);

    return 1;
}

int android_setCpuArm	(	int	cpu_count,
		uint64_t	cpu_features,
		uint32_t	cpu_id
	)

Definition at line 971 of file cpu-features.c.

{
    if (!android_setCpu(cpu_count, cpu_features))
        return 0;

    g_cpuIdArm = cpu_id;
    return 1;
}