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 X-Spam-Level: X-Spam-Status: No, score=-11.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D6B98C11F67 for ; Tue, 29 Jun 2021 18:28:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B16F661DE8 for ; Tue, 29 Jun 2021 18:28:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235175AbhF2SbT (ORCPT ); Tue, 29 Jun 2021 14:31:19 -0400 Received: from mga06.intel.com ([134.134.136.31]:12481 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235084AbhF2SbM (ORCPT ); Tue, 29 Jun 2021 14:31:12 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10030"; a="269341964" X-IronPort-AV: E=Sophos;i="5.83,309,1616482800"; d="scan'208";a="269341964" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Jun 2021 11:28:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,309,1616482800"; d="scan'208";a="408270448" Received: from otc-lr-04.jf.intel.com ([10.54.39.41]) by orsmga006.jf.intel.com with ESMTP; 29 Jun 2021 11:28:43 -0700 From: kan.liang@linux.intel.com To: peterz@infradead.org, mingo@redhat.com, gregkh@linuxfoundation.org, acme@kernel.org, linux-kernel@vger.kernel.org Cc: eranian@google.com, namhyung@kernel.org, jolsa@redhat.com, ak@linux.intel.com, yao.jin@linux.intel.com, Kan Liang Subject: [PATCH V3 0/6] perf: Add Sapphire Rapids server uncore support Date: Tue, 29 Jun 2021 11:13:57 -0700 Message-Id: <1624990443-168533-1-git-send-email-kan.liang@linux.intel.com> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Kan Liang Changes since V2: - Use sysfs_emit() for the new sysfs attribute "alias" in patch 2. - Use ATTRIBUTE_GROUPS() for uncore_alias in patch 2 Changes since V1: - Drop the symlink between two PMU names. Add a new attribute "alias" to indicate the old numeric name. - Add document and perf tool support for the new attribute "alias". (I once planned to use "caps/pmu_name" as the new attribute name in V1's discussion. https://lore.kernel.org/lkml/1edc6666-c4b3-ebf5-964a-e5ffc97d8563@linux.intel.com/ The name has a different meaning in the CPU PMU, which may causes confusion. So the "alias" is used in V2.) - The number of the free-running counter units should be the same as the max index of the relative units plus one. Correct the number in the patch 4. Intel Sapphire Rapids supports a discovery mechanism, that allows an uncore driver to discover the different components ("boxes") of the chip. All the generic information of the uncore boxes should be retrieved from the discovery tables. This has been enabled with the commit edae1f06c2cd ("perf/x86/intel/uncore: Parse uncore discovery tables"). The uncore driver doesn't need to hard code the generic information for each uncore box. But we still need to enable various functionality that cannot be directly discovered. This is done in the patchset. Without this platform-specific enabling patch set, perf uses a type ID plus a box ID, e.g., uncore_type_0_0 to name an uncore PMU. With the patch set, perf has the mapping information from a type ID to a specific uncore unit. Just like the previous platforms, the uncore PMU can be named by the real PMU name, e.g., uncore_cha_0. Add a new attribute "alias" to indicate the old numeric name. The userspace perf tool is modified in the patch-set to handle both names. The uncore spec of Sapphire Rapids server can be found at https://cdrdv2.intel.com/v1/dl/getContent/642245 Kan Liang (6): perf/x86/intel/uncore: Add Sapphire Rapids server support perf/x86/intel/uncore: Add alias PMU name perf/x86/intel/uncore: Factor out snr_uncore_mmio_map() perf/x86/intel/uncore: Support free-running counters on Sapphire Rapids server perf/x86/intel/uncore: Fix invalid unit check perf pmu: Add PMU alias support arch/x86/events/intel/uncore.c | 45 ++- arch/x86/events/intel/uncore.h | 4 + arch/x86/events/intel/uncore_discovery.c | 42 +-- arch/x86/events/intel/uncore_discovery.h | 23 +- arch/x86/events/intel/uncore_snbep.c | 543 ++++++++++++++++++++++++++++++- tools/perf/arch/x86/util/pmu.c | 129 +++++++- tools/perf/util/parse-events.y | 4 +- tools/perf/util/pmu.c | 23 +- tools/perf/util/pmu.h | 5 + 9 files changed, 770 insertions(+), 48 deletions(-) -- 2.7.4