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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 36663C3DA4B for ; Mon, 15 Jul 2024 17:55:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EE41110E47E; Mon, 15 Jul 2024 17:55:14 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="nZ89EvUz"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.18]) by gabe.freedesktop.org (Postfix) with ESMTPS id 98CA110E47E for ; Mon, 15 Jul 2024 17:55:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1721066114; x=1752602114; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=bqbSRH82dd5hz4Y007eKHvFfx5KomReNipxj+rMsFyE=; b=nZ89EvUzrhZIcewrdoW5mXrzk7P1EVLc6lxfjzEFsDCZoCEGvIHwRIBH lUtfp9ubiq5q7d/4foJE91MUMrMRS8mhO4/+qs5YDLNlChrs9O/1sZEwp d5BVwm/zaKBj6BckvCzKi4EbIw8Znx94/d0vAMoy3Rkggg0ZM+eeAerqE cGj8rfGBOEfuKYyl0yR9xWxiu1BlyGnHzHx7xcUj+xEGmJXOUu+rJBDE5 eRO8G7UoCpCZzv2nq2K+NeAm2jtnZnreIat3NNsk2MuLb6pTG7WZphLbn X3uoG5JHFqGNUmK8T6PsuUV1j21lVWSz/3YGvVZtr0aic/766txUquYny A==; X-CSE-ConnectionGUID: UgS3TfqeR06eD8ZGgwiYAA== X-CSE-MsgGUID: oYhxKZYFS7OPdUUjLiAg/A== X-IronPort-AV: E=McAfee;i="6700,10204,11134"; a="18077434" X-IronPort-AV: E=Sophos;i="6.09,210,1716274800"; d="scan'208";a="18077434" Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by fmvoesa112.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jul 2024 10:55:14 -0700 X-CSE-ConnectionGUID: Fw4OGiXeSsymDo7G04JXtQ== X-CSE-MsgGUID: Vbm9+lZPRHSXqSwiDG5AdQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.09,210,1716274800"; d="scan'208";a="49654322" Received: from awvttdev-05.aw.intel.com ([10.228.212.156]) by fmviesa009-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Jul 2024 10:55:12 -0700 From: "Michael J. Ruhl" To: intel-xe@lists.freedesktop.org, platform-driver-x86@vger.kernel.org, david.e.box@linux.intel.com, ilpo.jarvinen@linux.intel.com, matthew.brost@intel.com, andriy.shevchenko@linux.intel.com Cc: michael.j.ruhl@intel.com Subject: [PATCH v7 2/6] platform/x86/intel/vsec: Add PMT read callbacks Date: Mon, 15 Jul 2024 13:54:46 -0400 Message-ID: <20240715175452.4010751-3-michael.j.ruhl@intel.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240715175452.4010751-1-michael.j.ruhl@intel.com> References: <20240715175452.4010751-1-michael.j.ruhl@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" From: "David E. Box" Some PMT providers require device specific actions before their telemetry can be read. Provide assignable PMT read callbacks to allow providers to perform those actions. Reviewed-by: Michael J. Ruhl Signed-off-by: David E. Box --- drivers/platform/x86/intel/vsec.c | 1 + include/linux/intel_vsec.h | 14 ++++++++++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/platform/x86/intel/vsec.c b/drivers/platform/x86/intel/vsec.c index 2b46807f868b..7b5cc9993974 100644 --- a/drivers/platform/x86/intel/vsec.c +++ b/drivers/platform/x86/intel/vsec.c @@ -212,6 +212,7 @@ static int intel_vsec_add_dev(struct pci_dev *pdev, struct intel_vsec_header *he intel_vsec_dev->num_resources = header->num_entries; intel_vsec_dev->quirks = info->quirks; intel_vsec_dev->base_addr = info->base_addr; + intel_vsec_dev->priv_data = info->priv_data; if (header->id == VSEC_ID_SDSI) intel_vsec_dev->ida = &intel_vsec_sdsi_ida; diff --git a/include/linux/intel_vsec.h b/include/linux/intel_vsec.h index 6495e37c9079..b1c1131213f6 100644 --- a/include/linux/intel_vsec.h +++ b/include/linux/intel_vsec.h @@ -67,6 +67,19 @@ enum intel_vsec_quirks { VSEC_QUIRK_EARLY_HW = BIT(4), }; +/** + * struct pmt_callbacks - Callback infrastructure for PMT devices + * ->read_telem() when specified, called by client driver to access PMT data (instead + * of direct copy). + * @pdev: PCI device reference for the callback's use + * @guid: ID of data to acccss + * @data: buffer for the data to be copied + * @count: size of buffer + */ +struct pmt_callbacks { + int (*read_telem)(struct pci_dev *pdev, u32 guid, u64 *data, u32 count); +}; + /** * struct intel_vsec_platform_info - Platform specific data * @parent: parent device in the auxbus chain @@ -78,6 +91,7 @@ enum intel_vsec_quirks { struct intel_vsec_platform_info { struct device *parent; struct intel_vsec_header **headers; + void *priv_data; unsigned long caps; unsigned long quirks; u64 base_addr; -- 2.44.0