From patchwork Wed Oct 18 23:16:07 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "David E. Box" X-Patchwork-Id: 13428076 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 41501CDB47E for ; Wed, 18 Oct 2023 23:16:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231586AbjJRXQ1 (ORCPT ); Wed, 18 Oct 2023 19:16:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46920 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229894AbjJRXQ0 (ORCPT ); Wed, 18 Oct 2023 19:16:26 -0400 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 330A3111; Wed, 18 Oct 2023 16:16:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1697670985; x=1729206985; h=from:to:subject:date:message-id:mime-version: content-transfer-encoding; bh=rZatTB+1jNamJ3WtWSkSc/lrxyn+zX3WBu9B82X0GL4=; b=TZTw7ZTGpDHhctMYkR9Ntq+A9hlbbjyzwsvX4Di8PR4Jf7Th06IY9yBU PSAXwH6MRVemMikmSaroU6b9yL2Qlq3UP6fU0QQ1IVDz/PHv6p3WYmsNW 67muXNmBr77aoK32oGgJFZjOJnNsZcGXzakdbZIrquc44crdCqHmEDo2i ecR5BY9DC1iVwKzCjBNF8nHHisAM2X5xZD0mnjql/gQ9ANPkg/xEq+hPv jfbBh/YUelVFmxB42w8HOvOpVhmR+BAlr+MpOniH5eqYvuhJBIJGk08dC pvpFjLOgt89BYxTShL33yejVuNzKG//Zhj6uZKJMNMe8AkqGy4CseJGiA g==; X-IronPort-AV: E=McAfee;i="6600,9927,10867"; a="385013039" X-IronPort-AV: E=Sophos;i="6.03,236,1694761200"; d="scan'208";a="385013039" Received: from fmviesa001.fm.intel.com ([10.60.135.141]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2023 16:16:25 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.03,236,1694761200"; d="scan'208";a="4730725" Received: from linux.intel.com ([10.54.29.200]) by fmviesa001.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2023 16:16:28 -0700 Received: from debox1-desk4.lan (unknown [10.209.71.91]) by linux.intel.com (Postfix) with ESMTP id 985AD580DD0; Wed, 18 Oct 2023 16:16:24 -0700 (PDT) From: "David E. Box" To: linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, ilpo.jarvinen@linux.intel.com, rajvi.jingar@linux.intel.com Subject: [PATCH V4 00/17] intel_pmc: Add telemetry API to read counters Date: Wed, 18 Oct 2023 16:16:07 -0700 Message-Id: <20231018231624.1044633-1-david.e.box@linux.intel.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: platform-driver-x86@vger.kernel.org On newer Intel silicon, more IP counters are being added in Intel Platform Monitoring Technology (PMT) telemetry spaces hosted in MMIO. There is a need for the intel_pmc_core driver and other drivers to access PMT hosted telemetry in the kernel using an API. This patchset adds driver APIs to allow registering and reading telemetry entries. It makes changes to the intel_pmc_core driver to use these interfaces to access the low power mode counters that are now exclusively available from PMT. David E. Box (12): platform/x86/intel/vsec: Move structures to header platform/x86/intel/vsec: remove platform_info from vsec device structure platform/x86/intel/vsec: Use cleanup.h platform/x86/intel/vsec: Add base address field platform/x86/intel/pmt: Add header to struct intel_pmt_entry platform/x86/intel/pmt: telemetry: Export API to read telemetry platform/x86/intel/pmc: Allow pmc_core_ssram_init to fail linux/io.h: iounmap/ioport_unmap cleanup.h support platform/x86/intel/pmc: Split pmc_core_ssram_get_pmc() platform/x86/intel/pmc: Find and register PMC telemetry entries platform/x86/intel/pmc: Add debug attribute for Die C6 counter platform/x86/intel/pmc: Show Die C6 counter on Meteor Lake Gayatri Kammela (1): platform/x86/intel/vsec: Add intel_vsec_register Rajvi Jingar (1): platform/x86/intel/pmc: Display LPM requirements for multiple PMCs Xi Pardee (3): platform/x86:intel/pmc: Call pmc_get_low_power_modes from platform init platform/x86/intel/pmc: Retrieve LPM information using Intel PMT platform/x86/intel/pmc: Read low power mode requirements for MTL-M and MTL-P drivers/platform/x86/intel/pmc/Kconfig | 1 + drivers/platform/x86/intel/pmc/adl.c | 2 + drivers/platform/x86/intel/pmc/cnp.c | 2 + drivers/platform/x86/intel/pmc/core.c | 191 +++++++++---- drivers/platform/x86/intel/pmc/core.h | 10 +- drivers/platform/x86/intel/pmc/core_ssram.c | 297 +++++++++++++++++--- drivers/platform/x86/intel/pmc/icl.c | 10 +- drivers/platform/x86/intel/pmc/mtl.c | 87 +++++- drivers/platform/x86/intel/pmc/spt.c | 10 +- drivers/platform/x86/intel/pmc/tgl.c | 1 + drivers/platform/x86/intel/pmt/class.c | 43 ++- drivers/platform/x86/intel/pmt/class.h | 30 +- drivers/platform/x86/intel/pmt/crashlog.c | 2 +- drivers/platform/x86/intel/pmt/telemetry.c | 193 ++++++++++++- drivers/platform/x86/intel/pmt/telemetry.h | 126 +++++++++ drivers/platform/x86/intel/vsec.c | 85 +++--- drivers/platform/x86/intel/vsec.h | 44 ++- include/linux/io.h | 4 + 18 files changed, 949 insertions(+), 189 deletions(-) create mode 100644 drivers/platform/x86/intel/pmt/telemetry.h base-commit: 3f720b21ec5af466e50e99dc517af267b67d248c