From patchwork Fri Jun 9 07:56:08 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Junhao He X-Patchwork-Id: 13273376 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A4871C7EE2F for ; Fri, 9 Jun 2023 07:58:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=EG3LnS0H59IIxjWIZ+W5mhcDm2v6GhAHXaBErXwBEhE=; b=KO+3O8Z2zIplMG 4v3/iJpnFFqpM2V4pCTVl7ugtXHnWpGqFKAbFK3W8crpBK226bJeemckAz2qUD/yU2JKPJ348+gaq 44uhYB6ZHeXLL98+yuX43adbrSurSkauMEFsWXkEHRch7HlC0A/Nb1K/kqnn4bJfzQByE4vwlmxlp KIYq8gbz8VKJXzKvFoDLfQN8qzfcZK1tRlmaaI2ISB5I3irjAgzVgoPsNibyo23a/XdCteSebuNWG d9frq5ImcOlwewriS826c3aDDqeBgphXwouPSzrC4MAew0bhFRPUc9cYQMLq4hTwaPaZW1wwFgiDZ yXOE+jPNA/3WPU0OrTww==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q7X0o-00C93e-2G; Fri, 09 Jun 2023 07:58:22 +0000 Received: from szxga08-in.huawei.com ([45.249.212.255]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q7X0k-00C90l-3B for linux-arm-kernel@lists.infradead.org; Fri, 09 Jun 2023 07:58:21 +0000 Received: from dggpeml500002.china.huawei.com (unknown [172.30.72.53]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4QctcK6HgQz18MBM; Fri, 9 Jun 2023 15:53:21 +0800 (CST) Received: from localhost.localdomain (10.69.192.56) by dggpeml500002.china.huawei.com (7.185.36.158) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.23; Fri, 9 Jun 2023 15:58:11 +0800 From: Junhao He To: , , , CC: , , , , , , Subject: [PATCH v4 3/3] docs: perf: Add new description for HiSilicon UC PMU Date: Fri, 9 Jun 2023 15:56:08 +0800 Message-ID: <20230609075608.36559-4-hejunhao3@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230609075608.36559-1-hejunhao3@huawei.com> References: <20230609075608.36559-1-hejunhao3@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To dggpeml500002.china.huawei.com (7.185.36.158) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230609_005819_225312_149460C3 X-CRM114-Status: UNSURE ( 9.82 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- 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