cpu_utils.c File Reference

Returns information about CPUs. More...

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Functions
int	cpu_get_vendor (char *vendor)
int	cpu_get_name (char *name)
int	cpu_get_attribute (CPU_attr_e attr, int *value)
int	cpu_get_attribute_at (CPU_attr_e attr, int loc, int *value)
static int	get_cache_level (_sysdetect_cache_level_info_t *clevel_ptr, int type)
int	cpu_get_cache_info (CPU_attr_e attr, int level, _sysdetect_cache_level_info_t *clevel_ptr, int *value)

Detailed Description

Author

Giuseppe Congiu gcong.nosp@m.iu@i.nosp@m.cl.ut.nosp@m.k.ed.nosp@m.u

Definition in file cpu_utils.c.

Function Documentation

cpu_get_attribute()

int cpu_get_attribute	(	CPU_attr_e	attr,
		int *	value
	)

Definition at line 55 of file cpu_utils.c.

{
#if defined(__x86_64__) || defined(__amd64__)
    return x86_cpu_get_attribute(attr, value);
#elif defined(__powerpc__)
    return powerpc_cpu_get_attribute(attr, value);
#elif defined(__arm__) || defined(__aarch64__)
    return arm_cpu_get_attribute(attr, value);
#endif
    return os_cpu_get_attribute(attr, value);
}

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cpu_get_attribute_at()

int cpu_get_attribute_at	(	CPU_attr_e	attr,
		int	loc,
		int *	value
	)

Definition at line 68 of file cpu_utils.c.

{
#if defined(__x86_64__) || defined(__amd64__)
    return x86_cpu_get_attribute_at(attr, loc, value);
#elif defined(__powerpc__)
    return powerpc_cpu_get_attribute_at(attr, loc, value);
#elif defined(__arm__) || defined(__aarch64__)
    return arm_cpu_get_attribute_at(attr, loc, value);
#endif
    return os_cpu_get_attribute_at(attr, loc, value);
}

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cpu_get_cache_info()

int cpu_get_cache_info	(	CPU_attr_e	attr,
		int	level,
		_sysdetect_cache_level_info_t *	clevel_ptr,
		int *	value
	)

Definition at line 94 of file cpu_utils.c.

{
    int status = CPU_SUCCESS;
    int i;
 
    *value = 0;
 
    if (level >= PAPI_MAX_MEM_HIERARCHY_LEVELS)
        return CPU_ERROR;
 
    switch(attr) {
        case CPU_ATTR__CACHE_INST_PRESENT:
            if (get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_INST)) {
                *value = 1;
            }
            break;
        case CPU_ATTR__CACHE_DATA_PRESENT:
            if (get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_DATA)) {
                *value = 1;
            }
            break;
        case CPU_ATTR__CACHE_UNIF_PRESENT:
            if (get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_UNIFIED)) {
                *value = 1;
            }
            break;
        case CPU_ATTR__CACHE_INST_TOT_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_INST))) {
                *value = clevel_ptr[level-1].cache[i-1].size;
            }
            break;
        case CPU_ATTR__CACHE_INST_LINE_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_INST))) {
                *value = clevel_ptr[level-1].cache[i-1].line_size;
            }
            break;
        case CPU_ATTR__CACHE_INST_NUM_LINES:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_INST))) {
                *value = clevel_ptr[level-1].cache[i-1].num_lines;
            }
            break;
        case CPU_ATTR__CACHE_INST_ASSOCIATIVITY:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_INST))) {
                *value = clevel_ptr[level-1].cache[i-1].associativity;
            }
            break;
        case CPU_ATTR__CACHE_DATA_TOT_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_DATA))) {
                *value = clevel_ptr[level-1].cache[i-1].size;
            }
            break;
        case CPU_ATTR__CACHE_DATA_LINE_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_DATA))) {
                *value = clevel_ptr[level-1].cache[i-1].line_size;
            }
            break;
        case CPU_ATTR__CACHE_DATA_NUM_LINES:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_DATA))) {
                *value = clevel_ptr[level-1].cache[i-1].num_lines;
            }
            break;
        case CPU_ATTR__CACHE_DATA_ASSOCIATIVITY:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_DATA))) {
                *value = clevel_ptr[level-1].cache[i-1].associativity;
            }
            break;
        case CPU_ATTR__CACHE_UNIF_TOT_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_UNIFIED))) {
                *value = clevel_ptr[level-1].cache[i-1].size;
            }
            break;
        case CPU_ATTR__CACHE_UNIF_LINE_SIZE:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_UNIFIED))) {
                *value = clevel_ptr[level-1].cache[i-1].line_size;
            }
            break;
        case CPU_ATTR__CACHE_UNIF_NUM_LINES:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_UNIFIED))) {
                *value = clevel_ptr[level-1].cache[i-1].num_lines;
            }
            break;
        case CPU_ATTR__CACHE_UNIF_ASSOCIATIVITY:
            if ((i = get_cache_level(&clevel_ptr[level-1], PAPI_MH_TYPE_UNIFIED))) {
                *value = clevel_ptr[level-1].cache[i-1].associativity;
            }
            break;
        default:
            status = CPU_ERROR;
    }
 
    return status;
}

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cpu_get_name()

int cpu_get_name

(

char *

name

)

Definition at line 42 of file cpu_utils.c.

{
#if defined(__x86_64__) || defined(__amd64__)
    return x86_cpu_get_name(name);
#elif defined(__powerpc__)
    return powerpc_cpu_get_name(name);
#elif defined(__arm__) || defined(__aarch64__)
    return arm_cpu_get_name(name);
#endif
    return os_cpu_get_name(name);
}

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cpu_get_vendor()

int cpu_get_vendor

(

char *

vendor

)

Definition at line 29 of file cpu_utils.c.

{
#if defined(__x86_64__) || defined(__amd64__)
    return x86_cpu_get_vendor(vendor);
#elif defined(__powerpc__)
    return powerpc_cpu_get_vendor(vendor);
#elif defined(__arm__) || defined(__aarch64__)
    return arm_cpu_get_vendor(vendor);
#endif
    return os_cpu_get_vendor(vendor);
}

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get_cache_level()

static int get_cache_level ( _sysdetect_cache_level_info_t *  clevel_ptr, int  type  )

static

Definition at line 81 of file cpu_utils.c.

{
    int i;
 
    for (i = 0; i < clevel_ptr->num_caches; ++i) {
        if (clevel_ptr->cache[i].type == type)
            return i + 1;
    }
 
    return 0;
}

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