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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kh529-0004E5-S7; Mon, 23 Nov 2020 06:09:05 +0000 Received: from foss.arm.com ([217.140.110.172]) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kh526-0004Dd-TI for linux-arm-kernel@lists.infradead.org; Mon, 23 Nov 2020 06:09:03 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F413530E; Sun, 22 Nov 2020 22:08:59 -0800 (PST) Received: from [10.163.82.200] (unknown [10.163.82.200]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F0E793F71F; Sun, 22 Nov 2020 22:08:57 -0800 (PST) Subject: Re: [RFC 09/11] coresight: etm-perf: Disable the path before capturing the trace data To: Suzuki K Poulose , linux-arm-kernel@lists.infradead.org, coresight@lists.linaro.org References: <1605012309-24812-1-git-send-email-anshuman.khandual@arm.com> <1605012309-24812-10-git-send-email-anshuman.khandual@arm.com> <1ad992f4-5981-6ff1-470b-875e30d3c229@arm.com> From: Anshuman Khandual Message-ID: Date: Mon, 23 Nov 2020 11:38:53 +0530 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: <1ad992f4-5981-6ff1-470b-875e30d3c229@arm.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201123_010903_022121_33A9ACEB X-CRM114-Status: GOOD ( 21.24 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, mathieu.poirier@linaro.org, mike.leach@linaro.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org CgpPbiAxMS8xMi8yMCAyOjU3IFBNLCBTdXp1a2kgSyBQb3Vsb3NlIHdyb3RlOgo+IE9uIDExLzEw LzIwIDEyOjQ1IFBNLCBBbnNodW1hbiBLaGFuZHVhbCB3cm90ZToKPj4gcGVyZiBoYW5kbGUgc3Ry dWN0dXJlIG5lZWRzIHRvIGJlIHNoYXJlZCB3aXRoIHRoZSBUUkJFIElSUSBoYW5kbGVyIGZvcgo+ PiBjYXB0dXJpbmcgdHJhY2UgZGF0YSBhbmQgcmVzdGFydGluZyB0aGUgaGFuZGxlLiBUaGVyZSBp cyBhIHByb2JhYmlsaXR5Cj4+IG9mIGFuIHVuZGVmaW5lZCByZWZlcmVuY2UgYmFzZWQgY3Jhc2gg d2hlbiBldG0gZXZlbnQgaXMgYmVpbmcgc3RvcHBlZAo+PiB3aGlsZSBhIFRSQkUgSVJRIGFsc28g Z2V0dGluZyBwcm9jZXNzZWQuIFRoaXMgaGFwcGVucyBkdWUgdGhlIHJlbGVhc2UKPj4gb2YgcGVy ZiBoYW5kbGUgdmlhIHBlcmZfYXV4X291dHB1dF9lbmQoKS4gVGhpcyBzdG9wcyB0aGUgc2lua3Mg dmlhIHRoZQo+PiBsaW5rIGJlZm9yZSByZWxlYXNpbmcgdGhlIGhhbmRsZSwgd2hpY2ggd2lsbCBl bnN1cmUgdGhhdCBhIHNpbXVsdGFuZW91cwo+PiBUUkJFIElSUSBjb3VsZCBub3QgaGFwcGVuLgo+ Pgo+PiBTaWduZWQtb2ZmLWJ5OiBBbnNodW1hbiBLaGFuZHVhbCA8YW5zaHVtYW4ua2hhbmR1YWxA YXJtLmNvbT4KPj4gLS0tCj4+IFRoaXMgbWlnaHQgY2F1c2UgcHJvYmxlbSB3aXRoIHRyYWRpdGlv bmFsIHNpbmsgZGV2aWNlcyB3aGljaCBjYW4gYmUKPj4gb3BlcmF0ZWQgaW4gYm90aCBzeXNmcyBh bmQgcGVyZiBtb2RlLiBUaGlzIG5lZWRzIHRvIGJlIGFkZHJlc3NlZAo+PiBjb3JyZWN0bHkuIE9u ZSBvcHRpb24gd291bGQgYmUgdG8gbW92ZSB0aGUgdXBkYXRlX2J1ZmZlciBjYWxsYmFjawo+PiBp bnRvIHRoZSByZXNwZWN0aXZlIHNpbmsgZGV2aWNlcy4gZS5nLCBkaXNhYmxlKCkuCj4+Cj4+IMKg IGRyaXZlcnMvaHd0cmFjaW5nL2NvcmVzaWdodC9jb3Jlc2lnaHQtZXRtLXBlcmYuYyB8IDIgKysK Pj4gwqAgMSBmaWxlIGNoYW5nZWQsIDIgaW5zZXJ0aW9ucygrKQo+Pgo+PiBkaWZmIC0tZ2l0IGEv ZHJpdmVycy9od3RyYWNpbmcvY29yZXNpZ2h0L2NvcmVzaWdodC1ldG0tcGVyZi5jIGIvZHJpdmVy cy9od3RyYWNpbmcvY29yZXNpZ2h0L2NvcmVzaWdodC1ldG0tcGVyZi5jCj4+IGluZGV4IDUzNGUy MDUuLjFhMzc5OTEgMTAwNjQ0Cj4+IC0tLSBhL2RyaXZlcnMvaHd0cmFjaW5nL2NvcmVzaWdodC9j b3Jlc2lnaHQtZXRtLXBlcmYuYwo+PiArKysgYi9kcml2ZXJzL2h3dHJhY2luZy9jb3Jlc2lnaHQv Y29yZXNpZ2h0LWV0bS1wZXJmLmMKPj4gQEAgLTQyOSw3ICs0MjksOSBAQCBzdGF0aWMgdm9pZCBl dG1fZXZlbnRfc3RvcChzdHJ1Y3QgcGVyZl9ldmVudCAqZXZlbnQsIGludCBtb2RlKQo+PiDCoCDC oMKgwqDCoMKgwqDCoMKgwqAgc2l6ZSA9IHNpbmtfb3BzKHNpbmspLT51cGRhdGVfYnVmZmVyKHNp bmssIGhhbmRsZSwKPj4gwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKgwqDCoMKg wqDCoMKgwqDCoMKgIGV2ZW50X2RhdGEtPnNua19jb25maWcpOwo+PiArwqDCoMKgwqDCoMKgwqAg Y29yZXNpZ2h0X2Rpc2FibGVfcGF0aChwYXRoKTsKPj4gwqDCoMKgwqDCoMKgwqDCoMKgIHBlcmZf YXV4X291dHB1dF9lbmQoaGFuZGxlLCBzaXplKTsKPj4gK8KgwqDCoMKgwqDCoMKgIHJldHVybjsK Pj4gwqDCoMKgwqDCoCB9Cj4gCj4gQXMgeW91IG1lbnRpb25lZCwgdGhpcyBpcyBub3QgaWRlYWwg d2hlcmUgYW5vdGhlciBzZXNzaW9uIGNvdWxkIGJlIHRyaWdnZXJlZCBvbgo+IHRoZSBzaW5rIGZy b20gYSBkaWZmZXJlbnQgRVRNIChub3QgZm9yIHBlci1DUFUgc2luaykgaW4gYSBkaWZmZXJlbnQg bW9kZSBiZWZvcmUKPiB5b3UgY29sbGVjdCB0aGUgYnVmZmVyLiBJIGJlbGlldmUgdGhlIGJlc3Qg b3B0aW9uIGlzIHRvIGxlYXZlIHRoZQo+IHVwZGF0ZV9idWZmZXIoKSB0byBkaXNhYmxlX2h3LiBU aGlzIHdvdWxkIG5lZWQgdG8gcGFzcyBvbiB0aGUgImhhbmRsZSIgdG8gdGhlCj4gZGlzYWJsZV9w YXRoLgoKUGFzc2luZyAnaGFuZGxlJyBpbnRvIGNvcmVzaWdodF9vcHNfc2luay0+ZGlzYWJsZSgp IHdvdWxkIGVuYWJsZSBwdXNoaW5nCnVwZGF0ZWQgdHJhY2UgZGF0YSBpbnRvIHBlcmYgYXV4IGJ1 ZmZlci4gQnV0IGRvIHlvdSBwcm9wb3NlIHRvIGRyb3AgdGhlCnVwZGF0ZV9idWZmZXIoKSBjYWxs IGJhY2sgY29tcGxldGVseSBvciBqdXN0IG1vdmUgaXQgaW50byBkaXNhYmxlKCkgY2FsbApiYWNr IChhbG9uZyB3aXRoIFBFUkZfRUZfVVBEQVRFIG1vZGUgY2hlY2spIGZvciBhbGwgaW5kaXZpZHVh bCBzaW5rcyBmb3IKbm93LiBNYXkgYmUsIGxhdGVyIGl0IGNhbiBiZSBkcm9wcGVkIG9mZiBjb21w bGV0ZWx5LgoKPiAKPiBUaGF0IHdheSB0aGUgcmFjZXMgY2FuIGJlIGhhbmRsZWQgaW5zaWRlIHRo ZSBzaW5rcy4gQWxzbywgdGhpcyBhbGlnbnMgdGhlCj4gcGVyZiBtb2RlIG9mIHRoZSBzaW5rcyB3 aXRoIHRoYXQgb2YgdGhlIHN5c2ZzIG1vZGUuCgpEaWQgbm90IGdldCB0aGF0LCBjb3VsZCB5b3Ug cGxlYXNlIGVsYWJvcmF0ZSA/CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpsaW51eC1hcm0ta2VybmVsIG1haWxpbmcgbGlzdApsaW51eC1hcm0ta2VybmVs QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9saW51eC1hcm0ta2VybmVsCg==