From: kajoljain <kjain@linux.ibm.com>
To: Jiri Olsa <jolsa@redhat.com>
Cc: acme@kernel.org, linuxppc-dev@lists.ozlabs.org,
mpe@ellerman.id.au, sukadev@linux.vnet.ibm.com,
linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
anju@linux.vnet.ibm.com, maddy@linux.vnet.ibm.com,
ravi.bangoria@linux.ibm.com, peterz@infradead.org,
yao.jin@linux.intel.com, ak@linux.intel.com, jolsa@kernel.org,
kan.liang@linux.intel.com, jmario@redhat.com,
alexander.shishkin@linux.intel.com, mingo@kernel.org,
paulus@ozlabs.org, namhyung@kernel.org, mpetlan@redhat.com,
gregkh@linuxfoundation.org, benh@kernel.crashing.org,
mamatha4@linux.vnet.ibm.com, mark.rutland@arm.com,
tglx@linutronix.de
Subject: Re: [PATCH v3 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?"
Date: Fri, 6 Mar 2020 10:22:27 +0530 [thread overview]
Message-ID: <d15a8aa6-e2d5-3edf-699a-8eda0862fd9b@linux.ibm.com> (raw)
In-Reply-To: <20200302150819.GA259142@krava>
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
>
next prev parent reply other threads:[~2020-03-06 4:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-29 9:41 [PATCH v3 0/8] powerpc/perf: Add json file metric support for the hv_24x7 socket/chip level events Kajol Jain
2020-02-29 9:41 ` [PATCH v3 1/8] powerpc/perf/hv-24x7: Fix inconsistent output values incase multiple hv-24x7 events run Kajol Jain
2020-02-29 9:41 ` [PATCH v3 2/8] powerpc/hv-24x7: Add rtas call in hv-24x7 driver to get processor details Kajol Jain
2020-02-29 9:41 ` [PATCH v3 3/8] powerpc/hv-24x7: Add sysfs files inside hv-24x7 device to show " Kajol Jain
2020-02-29 9:41 ` [PATCH v3 4/8] Documentation/ABI: Add ABI documentation for chips and sockets Kajol Jain
2020-02-29 9:41 ` [PATCH v3 5/8] powerpc/hv-24x7: Update post_mobility_fixup() to handle migration Kajol Jain
2020-02-29 9:41 ` [PATCH v3 6/8] perf/tools: Enhance JSON/metric infrastructure to handle "?" Kajol Jain
2020-03-02 15:08 ` Jiri Olsa
2020-03-06 4:52 ` kajoljain [this message]
2020-03-02 15:08 ` Jiri Olsa
2020-03-02 15:09 ` Jiri Olsa
2020-02-29 9:41 ` [PATCH v3 7/8] tools/perf: Enable Hz/hz prinitg for --metric-only option Kajol Jain
2020-02-29 9:41 ` [PATCH v3 8/8] perf/tools/pmu-events/powerpc: Add hv_24x7 socket/chip level metric events Kajol Jain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=d15a8aa6-e2d5-3edf-699a-8eda0862fd9b@linux.ibm.com \
--to=kjain@linux.ibm.com \
--cc=acme@kernel.org \
--cc=ak@linux.intel.com \
--cc=alexander.shishkin@linux.intel.com \
--cc=anju@linux.vnet.ibm.com \
--cc=benh@kernel.crashing.org \
--cc=gregkh@linuxfoundation.org \
--cc=jmario@redhat.com \
--cc=jolsa@kernel.org \
--cc=jolsa@redhat.com \
--cc=kan.liang@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=linuxppc-dev@lists.ozlabs.org \
--cc=maddy@linux.vnet.ibm.com \
--cc=mamatha4@linux.vnet.ibm.com \
--cc=mark.rutland@arm.com \
--cc=mingo@kernel.org \
--cc=mpe@ellerman.id.au \
--cc=mpetlan@redhat.com \
--cc=namhyung@kernel.org \
--cc=paulus@ozlabs.org \
--cc=peterz@infradead.org \
--cc=ravi.bangoria@linux.ibm.com \
--cc=sukadev@linux.vnet.ibm.com \
--cc=tglx@linutronix.de \
--cc=yao.jin@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).