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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,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 7E242C433FE for ; Thu, 10 Dec 2020 18:42:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3923322581 for ; Thu, 10 Dec 2020 18:42:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390650AbgLJOcw (ORCPT ); Thu, 10 Dec 2020 09:32:52 -0500 Received: from mail.kernel.org ([198.145.29.99]:38948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390498AbgLJObd (ORCPT ); Thu, 10 Dec 2020 09:31:33 -0500 From: Greg Kroah-Hartman Authentication-Results: mail.kernel.org; dkim=permerror (bad message/signature format) To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jerry Snitselaar , Suravee Suthikulpanit , Will Deacon Subject: [PATCH 4.14 22/31] iommu/amd: Set DTE[IntTabLen] to represent 512 IRTEs Date: Thu, 10 Dec 2020 15:26:59 +0100 Message-Id: <20201210142603.204326253@linuxfoundation.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201210142602.099683598@linuxfoundation.org> References: <20201210142602.099683598@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Suravee Suthikulpanit commit 4165bf015ba9454f45beaad621d16c516d5c5afe upstream. According to the AMD IOMMU spec, the commit 73db2fc595f3 ("iommu/amd: Increase interrupt remapping table limit to 512 entries") also requires the interrupt table length (IntTabLen) to be set to 9 (power of 2) in the device table mapping entry (DTE). Fixes: 73db2fc595f3 ("iommu/amd: Increase interrupt remapping table limit to 512 entries") Reported-by: Jerry Snitselaar Signed-off-by: Suravee Suthikulpanit Reviewed-by: Jerry Snitselaar Link: https://lore.kernel.org/r/20201207091920.3052-1-suravee.suthikulpanit@amd.com Signed-off-by: Will Deacon Signed-off-by: Greg Kroah-Hartman --- drivers/iommu/amd_iommu_types.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -255,7 +255,7 @@ #define DTE_IRQ_REMAP_INTCTL_MASK (0x3ULL << 60) #define DTE_IRQ_TABLE_LEN_MASK (0xfULL << 1) #define DTE_IRQ_REMAP_INTCTL (2ULL << 60) -#define DTE_IRQ_TABLE_LEN (8ULL << 1) +#define DTE_IRQ_TABLE_LEN (9ULL << 1) #define DTE_IRQ_REMAP_ENABLE 1ULL #define PAGE_MODE_NONE 0x00