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=-2.1 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, USER_AGENT_MUTT 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 E88FFC67790 for ; Fri, 27 Jul 2018 10:27:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9DC2C208A2 for ; Fri, 27 Jul 2018 10:27:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=8bytes.org header.i=@8bytes.org header.b="gOOv7WWv" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9DC2C208A2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=8bytes.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732079AbeG0Ls2 (ORCPT ); Fri, 27 Jul 2018 07:48:28 -0400 Received: from 8bytes.org ([81.169.241.247]:34740 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729431AbeG0Ls2 (ORCPT ); Fri, 27 Jul 2018 07:48:28 -0400 Received: by theia.8bytes.org (Postfix, from userid 1000) id A08F5257; Fri, 27 Jul 2018 12:27:10 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=8bytes.org; s=mail-1; t=1532687230; bh=rbO2WdppfB5xWPK+CKifcFaZObqE4HfzLXcOGIAQc1c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gOOv7WWvzaJhhC0aMNajdD2e3wS0Cur1J/JdVotMdtqWNR29Kbz6I/kQ0F6aDJ64j dP6tvNjwmOAimzb/hkCZydZ53TrwVvTpuZEPeekpFGybFw1g4VlO33Yghd6P0MlKHI y+IG0KM7osnvYoCxR8nid5Qr9G9Xx02uG+nej/zmvBX65HWUEgDAqzI1aoALosmCE4 rXJg/J145CrhWQ36ufb2wVfg3921C30cr0Vztr2tU5KZWJQmPM4OIgHZ54L6VlWLxe We0DoZzGuOYg7o3N7fGtGvOPxdW5kskCIWD/5zflbFX7FFl8/iY7ENvc8lRi3/IkOD cTICAt7g9b5EQ== Date: Fri, 27 Jul 2018 12:27:10 +0200 From: =?iso-8859-1?Q?J=F6rg_R=F6del?= To: Paul Menzel Cc: iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org Subject: Re: MSI B350M MORTAR: `AMD-Vi: Unable to write to IOMMU perf counter.` and `pci 0000:00:00.2: can't derive routing for PCI INT A` Message-ID: <20180727102710.GA6738@8bytes.org> References: <605ca165-0071-eb7f-4c0d-b1e76ddd0e05@molgen.mpg.de> <20180720123153.GC18541@8bytes.org> <20180727082754.hk44xktdydduu3qo@8bytes.org> <92922faa-164d-002b-9a5e-1865a57f1bdb@molgen.mpg.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <92922faa-164d-002b-9a5e-1865a57f1bdb@molgen.mpg.de> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 27, 2018 at 11:18:56AM +0200, Paul Menzel wrote: > On the AMD site [1] I see the three family 0x17 documents below. > > 1. Open-Source Register Reference for AMD Family 17h Processors (PUB) > 2. Processor Programming Reference (PPR) for AMD Family 17h Models 00h-0Fh Processors (PUB) > 3. Software Optimization Guide for AMD Family 17h Processors (PUB) > > What documented is required? The BKDG? IIRC the PPR is the new BKDG, but the public version does not seem to contain any references about how the IOMMU needs to be set up by firmware. Thanks, Joerg