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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 771EAC43334 for ; Sat, 2 Jul 2022 02:01:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232048AbiGBCBD (ORCPT ); Fri, 1 Jul 2022 22:01:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35422 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231658AbiGBCA4 (ORCPT ); Fri, 1 Jul 2022 22:00:56 -0400 Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D5C06735AC for ; Fri, 1 Jul 2022 19:00:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1656727254; x=1688263254; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=ES4BgWmczuXVvIJOwIS6o6KxGZWScbVt38+yOQD7Uwo=; b=H9/zdWOEDQLQ4yJEhDjK/tjIcTvozN4eOvg//ZrRBC8BoTV+W9L1ufvv jz5Xu6fOn0ElTfnFeimH/A92zEtUMqx9SgNtNNjNYO7qmY9nOWXw+uU0t ThYQjZ+rcqSZ1W6KCqgwt8VmM4NvInzD2mjfqVp7DpnLS1vLgIvosESra wjo6qfUWkNPGKsF4UTIVJ3ueopM3mSvIRsHLrkXW0+JhRZCf6AvQl+TfG q4SgsbeZfEzIRpcV1VCHcoJanmWkwwsmlSXXrdjcL7hH9mwo+C8pshD04 O2Kcl3I6LYnQcy+7tgAljo8IxmIUgjDpkTuxtUETTCjczdpKXV03BoXjb g==; X-IronPort-AV: E=McAfee;i="6400,9594,10395"; a="262573761" X-IronPort-AV: E=Sophos;i="5.92,238,1650956400"; d="scan'208";a="262573761" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jul 2022 19:00:54 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.92,238,1650956400"; d="scan'208";a="589518343" Received: from allen-box.sh.intel.com ([10.239.159.48]) by orsmga007.jf.intel.com with ESMTP; 01 Jul 2022 19:00:51 -0700 From: Lu Baolu To: Joerg Roedel , Steve Wahl , Kevin Tian Cc: David Woodhouse , Jerry Snitselaar , Mike Travis , Dimitri Sivanich , Russ Anderson , iommu@lists.linux.dev, iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org, Lu Baolu Subject: [PATCH v2 6/6] iommu/vt-d: Make DMAR_UNITS_SUPPORTED default 1024 Date: Sat, 2 Jul 2022 09:56:10 +0800 Message-Id: <20220702015610.2849494-7-baolu.lu@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220702015610.2849494-1-baolu.lu@linux.intel.com> References: <20220702015610.2849494-1-baolu.lu@linux.intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the available hardware exceeds DMAR_UNITS_SUPPORTED (previously set to MAX_IO_APICS, or 128), it causes these messages: "DMAR: Failed to allocate seq_id", "DMAR: Parse DMAR table failure.", and "x2apic: IRQ remapping doesn't support X2APIC mode x2apic disabled"; and the system fails to boot properly. To support up to 64 sockets with 10 DMAR units each (640), make the value of DMAR_UNITS_SUPPORTED default 1024. Signed-off-by: Steve Wahl Link: https://lore.kernel.org/linux-iommu/20220615183650.32075-1-steve.wahl@hpe.com/ Signed-off-by: Lu Baolu Reviewed-by: Kevin Tian --- include/linux/dmar.h | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/include/linux/dmar.h b/include/linux/dmar.h index cbd714a198a0..d81a51978d01 100644 --- a/include/linux/dmar.h +++ b/include/linux/dmar.h @@ -18,11 +18,7 @@ struct acpi_dmar_header; -#ifdef CONFIG_X86 -# define DMAR_UNITS_SUPPORTED MAX_IO_APICS -#else -# define DMAR_UNITS_SUPPORTED 64 -#endif +#define DMAR_UNITS_SUPPORTED 1024 /* DMAR Flags */ #define DMAR_INTR_REMAP 0x1 -- 2.25.1