From patchwork Tue May 23 13:18:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Junhao He X-Patchwork-Id: 13252243 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 8F963C7EE23 for ; Tue, 23 May 2023 13:20:54 +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=fIe+2tkBZIufmVeNMhY+qhLsqw7o74tvc1ONUV6CwUg=; b=JwUGVE1rI/bmHa +hXHQ9XTf3Lija46LX5ZogtwcFlGkj07ibvdGliXFlM+WKR4/B5OgsVEs0BbLDYVLhHpiKdVHI5YS dEt67ie+raZJwcQBk+syAAyeYkR1XwquPC2t9Y82narcikRfJFEyaOW+2gS8cBDfRMi9htf7MhDly bDisk5p6bFeYmO0N70nB22rnJ0OXcLkP3tz0sKOk7vU2NhQfkNY9/stQM5vOju4tpIq1LE5Zjv0sd c7D0MlT0D097ELys4vCmWNaxVPuWb8t671K6vTdV8pa2/xPQw7UQ8yHO+W2NXXwFu8FleD4guYgBF M9lbNdF6sitxFmOICB+w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1q1RwG-00AMYH-1D; Tue, 23 May 2023 13:20:32 +0000 Received: from szxga02-in.huawei.com ([45.249.212.188]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1q1RwD-00AMUQ-19 for linux-arm-kernel@lists.infradead.org; Tue, 23 May 2023 13:20:30 +0000 Received: from dggpeml500002.china.huawei.com (unknown [172.30.72.54]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4QQZc02Ss1zLq2M; Tue, 23 May 2023 21:17:20 +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; Tue, 23 May 2023 21:20:16 +0800 From: Junhao He To: , , , CC: , , , , , , Subject: [PATCH 3/3] docs: perf: Add new description for HiSilicon UC PMU Date: Tue, 23 May 2023 21:18:25 +0800 Message-ID: <20230523131825.6102-4-hejunhao3@huawei.com> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20230523131825.6102-1-hejunhao3@huawei.com> References: <20230523131825.6102-1-hejunhao3@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.69.192.56] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) 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-20230523_062029_583719_8657372A X-CRM114-Status: GOOD ( 10.14 ) 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 --- 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