From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD780C7EE2E for ; Fri, 9 Jun 2023 09:01:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240699AbjFIJBC (ORCPT ); Fri, 9 Jun 2023 05:01:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58562 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241347AbjFIJAN (ORCPT ); Fri, 9 Jun 2023 05:00:13 -0400 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id EEDD4B9; Fri, 9 Jun 2023 02:00:11 -0700 (PDT) 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 CDED5AB6; Fri, 9 Jun 2023 02:00:56 -0700 (PDT) Received: from FVFF77S0Q05N (unknown [10.57.25.215]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D0EC83F71E; Fri, 9 Jun 2023 02:00:09 -0700 (PDT) Date: Fri, 9 Jun 2023 10:00:07 +0100 From: Mark Rutland To: Junhao He Cc: will@kernel.org, jonathan.cameron@huawei.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org, linuxarm@huawei.com, yangyicong@huawei.com, shenyang39@huawei.com, prime.zeng@hisilicon.com Subject: Re: [PATCH v4 3/3] docs: perf: Add new description for HiSilicon UC PMU Message-ID: References: <20230609075608.36559-1-hejunhao3@huawei.com> <20230609075608.36559-4-hejunhao3@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230609075608.36559-4-hejunhao3@huawei.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jun 09, 2023 at 03:56:08PM +0800, Junhao He wrote: > A new function is added on HiSilicon uncore UC PMU. > > The UC PMU support to filter statistical information based on > the specified tx request uring channel. Make user configuration > through "uring_channel" parameter. > Document them to provide guidance on how to use them. > > Signed-off-by: Junhao He > Reviewed-by: Jonathan Cameron > Reviewed-by: Yicong Yang Acked-by: Mark Rutland Mark. > --- > Documentation/admin-guide/perf/hisi-pmu.rst | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/Documentation/admin-guide/perf/hisi-pmu.rst b/Documentation/admin-guide/perf/hisi-pmu.rst > index 546979360513..939a524fa1d6 100644 > --- a/Documentation/admin-guide/perf/hisi-pmu.rst > +++ b/Documentation/admin-guide/perf/hisi-pmu.rst > @@ -98,6 +98,14 @@ CCL/ICL-ID. For I/O die, the ICL-ID is followed by: > 5'b00011: HAC_ICL; > 5'b10000: PCIe_ICL; > > +(e) uring_channel: UC PMU events 0x47~0x59 supports filtering by tx request > +uring channel. It is 2 bits. Some important codes are as follows: > +2'b11: count the events which sent to the uring_ext (MATA) channel; > +2'b01: is the same as 2'b11; > +2'b10: count the events which sent to the uring (non-MATA) channel; > +2'b00: default value, count the events which sent to the both uring and > + uring_ext channel; > + > Users could configure IDs to count data come from specific CCL/ICL, by setting > srcid_cmd & srcid_msk, and data desitined for specific CCL/ICL by setting > tgtid_cmd & tgtid_msk. A set bit in srcid_msk/tgtid_msk means the PMU will not > -- > 2.33.0 >