On 3/2/20 8:38 PM, Jiri Olsa wrote:
> On Sat, Feb 29, 2020 at 03:11:57PM +0530, Kajol Jain wrote:
>
> SNIP
>
>> #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */
>> #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */
>>
>> +#define SOCKETS_INFO_FILE_PATH "/devices/hv_24x7/interface/"
>> +
>> int
>> get_cpuid(char *buffer, size_t sz)
>> {
>> @@ -44,3 +51,43 @@ get_cpuid_str(struct perf_pmu *pmu __maybe_unused)
>>
>> return bufp;
>> }
>> +
>> +int arch_get_runtimeparam(void)
>> +{
>> + int count = 0;
>> + DIR *dir;
>> + char path[PATH_MAX];
>> + const char *sysfs = sysfs__mountpoint();
>> + char filename[] = "sockets";
>> + FILE *file;
>> + char buf[16], *num;
>> + int data;
>> +
>> + if (!sysfs)
>> + goto out;
>> +
>> + snprintf(path, PATH_MAX,
>> + "%s" SOCKETS_INFO_FILE_PATH, sysfs);
>> + dir = opendir(path);
>> +
>> + if (!dir)
>> + goto out;
>> +
>> + strcat(path, filename);
>> + file = fopen(path, "r");
>> +
>> + if (!file)
>> + goto out;
>> +
>> + data = fread(buf, 1, sizeof(buf), file);
>> +
>> + if (data == 0)
>> + goto out;
>> +
>> + count = strtol(buf, &num, 10);
>> +out:
>> + if (!count)
>> + count = 1;
>> +
>> + return count;
>
> we have sysfs__read_ull for this
>
Hi Jiri,
Thanks for suggesting it. Will update.
Kajol
> jirka
>
