From patchwork Tue Sep 20 15:39:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alison Schofield X-Patchwork-Id: 12982389 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 5F0A0ECAAD8 for ; Tue, 20 Sep 2022 15:39:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229918AbiITPjd (ORCPT ); Tue, 20 Sep 2022 11:39:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229482AbiITPjc (ORCPT ); Tue, 20 Sep 2022 11:39:32 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 51AE410FB for ; Tue, 20 Sep 2022 08:39:31 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1663688371; x=1695224371; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=9FWPtZOmI1QGxD04E1vIbzu8X5qIclXkGCUprYIMZDk=; b=TgOEoeGGtsGPkLDb/2Z8UDfBEbJZI1mim052BFr03QNxauDVsUgbYUGH eQYxNvTvv4cbBAZjtK1wqPw2ACsAqj+K8924wOOCLTbC9CyO2gNap/uwn yipZoVirPAgJ5SYROacPJ28zdOA2bPSXkSHotuA+St2gcHARH3vuXU5SM GbVPtvu6XT24MJhUv5F2B3H+sQUk+8VJJ8H6n2VELnkB3cakMuSYwycIU ihHIEJVaf6YvK7bCkCFnVtwZWX/Bk5WT4SF+lGcpH7vDKjgpiWyvkpMnf HUIetoovwoFXYGp/Vu/fB5O7dwo7VnUOgqzXq/fvCOTkOlFymzF15RWDo g==; X-IronPort-AV: E=McAfee;i="6500,9779,10476"; a="301110856" X-IronPort-AV: E=Sophos;i="5.93,330,1654585200"; d="scan'208";a="301110856" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Sep 2022 08:39:30 -0700 X-IronPort-AV: E=Sophos;i="5.93,330,1654585200"; d="scan'208";a="794302318" Received: from aschofie-mobl2.amr.corp.intel.com (HELO localhost) ([10.212.139.149]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Sep 2022 08:39:29 -0700 From: alison.schofield@intel.com To: Dan Williams , Ira Weiny , Vishal Verma , Ben Widawsky , Dave Jiang Cc: Alison Schofield , linux-cxl@vger.kernel.org Subject: [PATCH v4 1/3] For ACPICA: Add the CXIMS structure definition to the CEDT table Date: Tue, 20 Sep 2022 08:39:24 -0700 Message-Id: X-Mailer: git-send-email 2.37.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cxl@vger.kernel.org From: Alison Schofield A linux-ized ACPI patch is included here for reference. The actual ACPICA pull request is pending: https://github.com/acpica/acpica/pull/795 The CXL XOR Interleave Math Structure (CXIMS) is added to the CXL Early Discovery Table (CEDT). This new structure is defined in the CXL 3.0 specification Section 9.17.1.4 https://www.computeexpresslink.org/spec-landing Signed-off-by: Alison Schofield --- include/acpi/actbl1.h | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 15c78678c5d3..f96f4fe5328d 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -329,7 +329,8 @@ struct acpi_cedt_header { enum acpi_cedt_type { ACPI_CEDT_TYPE_CHBS = 0, ACPI_CEDT_TYPE_CFMWS = 1, - ACPI_CEDT_TYPE_RESERVED = 2, + ACPI_CEDT_TYPE_CXIMS = 2, + ACPI_CEDT_TYPE_RESERVED = 3, }; /* Values for version field above */ @@ -380,6 +381,7 @@ struct acpi_cedt_cfmws_target_element { /* Values for Interleave Arithmetic field above */ #define ACPI_CEDT_CFMWS_ARITHMETIC_MODULO (0) +#define ACPI_CEDT_CFMWS_ARITHMETIC_XOR (1) /* Values for Restrictions field above */ @@ -389,6 +391,16 @@ struct acpi_cedt_cfmws_target_element { #define ACPI_CEDT_CFMWS_RESTRICT_PMEM (1<<3) #define ACPI_CEDT_CFMWS_RESTRICT_FIXED (1<<4) +/* 2: CXL XOR Interleave Math Structure */ + +struct acpi_cedt_cxims { + struct acpi_cedt_header header; + u16 reserved1; + u8 hbig; + u8 nr_xormaps; + u64 xormap_list[]; +}; + /******************************************************************************* * * CPEP - Corrected Platform Error Polling table (ACPI 4.0)