From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752422AbbCGM1l (ORCPT ); Sat, 7 Mar 2015 07:27:41 -0500 Received: from mga09.intel.com ([134.134.136.24]:53926 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750800AbbCGM1j (ORCPT ); Sat, 7 Mar 2015 07:27:39 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,358,1422950400"; d="scan'208";a="463920930" From: Alexander Shishkin To: Mathieu Poirier , gregkh@linuxfoundation.org Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, zhang.chunyan@linaro.org, kaixu.xia@linaro.org Subject: Re: [PATCH 4/5] coresight-stm: adding driver for CoreSight STM component In-Reply-To: <1425078294-13059-5-git-send-email-mathieu.poirier@linaro.org> References: <1425078294-13059-1-git-send-email-mathieu.poirier@linaro.org> <1425078294-13059-5-git-send-email-mathieu.poirier@linaro.org> User-Agent: Notmuch/0.18.2 (http://notmuchmail.org) Emacs/24.4.1 (x86_64-pc-linux-gnu) Date: Sat, 07 Mar 2015 14:27:35 +0200 Message-ID: <87ioed6lhk.fsf@ashishki-desk.ger.corp.intel.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Mathieu Poirier writes: > From: Pratik Patel > > This driver adds support for the STM CoreSight IP block, > allowing any system compoment (HW or SW) to log and > aggregate messages via a single entity. > > The STM exposes an application defined number of channels > called stimulus port. Configuration is done using entries > in sysfs and channels made available to userspace via devfs. I somehow missed it when it was posted, but anyway. It looks like we are solving a very similar problem (the STM device) and I'd like to propose a generic and architecture independent solution [1]. I also took the liberty to copy you and Pratik on those patches. [1] https://lkml.org/lkml/2015/3/7/99 Regards, -- Alex From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexander.shishkin@linux.intel.com (Alexander Shishkin) Date: Sat, 07 Mar 2015 14:27:35 +0200 Subject: [PATCH 4/5] coresight-stm: adding driver for CoreSight STM component In-Reply-To: <1425078294-13059-5-git-send-email-mathieu.poirier@linaro.org> References: <1425078294-13059-1-git-send-email-mathieu.poirier@linaro.org> <1425078294-13059-5-git-send-email-mathieu.poirier@linaro.org> Message-ID: <87ioed6lhk.fsf@ashishki-desk.ger.corp.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Mathieu Poirier writes: > From: Pratik Patel > > This driver adds support for the STM CoreSight IP block, > allowing any system compoment (HW or SW) to log and > aggregate messages via a single entity. > > The STM exposes an application defined number of channels > called stimulus port. Configuration is done using entries > in sysfs and channels made available to userspace via devfs. I somehow missed it when it was posted, but anyway. It looks like we are solving a very similar problem (the STM device) and I'd like to propose a generic and architecture independent solution [1]. I also took the liberty to copy you and Pratik on those patches. [1] https://lkml.org/lkml/2015/3/7/99 Regards, -- Alex