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=-7.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 CF9A4C433E3 for ; Sat, 1 Aug 2020 16:37:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A6E9A2080C for ; Sat, 1 Aug 2020 16:37:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=intel-com.20150623.gappssmtp.com header.i=@intel-com.20150623.gappssmtp.com header.b="sLJ2YymD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727087AbgHAQhC (ORCPT ); Sat, 1 Aug 2020 12:37:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36206 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726456AbgHAQhB (ORCPT ); Sat, 1 Aug 2020 12:37:01 -0400 Received: from mail-ej1-x641.google.com (mail-ej1-x641.google.com [IPv6:2a00:1450:4864:20::641]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6DEAEC06174A for ; Sat, 1 Aug 2020 09:37:00 -0700 (PDT) Received: by mail-ej1-x641.google.com with SMTP id o23so6978474ejr.1 for ; Sat, 01 Aug 2020 09:37:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=7nWoFZS16KHN7ELInZM3NkAqbsw8HmgfQtV5PkaAdOs=; b=sLJ2YymDgCE2aYqkgcFgGI6naddEomHT1AI/LblO1I2CIpKzR/X4HC0D8kFfsN6b+L XCYiypkgq9U/ws9p617+waX57F8r3r9xw2IEJINKnzTBI1kuSBY9ijEvHwlcNtuSjqeZ Hc2tgLSldiumX+1XnZPsDgJMdf1x61SK6XNyMc3TiFxkjVUQDHk06pK8LV6TXULby89E Q+sc+6B4I8vfJLc3o9x4Nzoa4qysw9eANsa9JKWVrWyM3DFMjubaz5YpI0uzS2O4ob16 LSXsaZKRopTp92npa1jce/IFsU1kV5YolRnKSOBrqMK/vKjOiSQ1Nztp40qAyj1R/fd9 WV0w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=7nWoFZS16KHN7ELInZM3NkAqbsw8HmgfQtV5PkaAdOs=; b=LZLkzcJP3KXQeRT3Tb5xVMoqEcTkCJJR1+kypp4hm5uYYce6o+RfIkaBeonwr6NbHE N565Ii2PaWt5XfM0ksEr+GjI+Js8BX9FI/Tr8RFNNNf4Spk6a80FcaLwOAWexb3poLXP SHDoapvfxNk7CbH3JGDKr8IkurFsL8EHwlN2DVaDMmc3d46iwWYr0kStm8unaJdzrdGA 0TpRmX3ARPdi/fPZxRWgTFmL2YxyI+wIgrEbFybFrwu0KAo4Dw6ap7WxSDK6SDSNnoge 0GW5pvUGEFdS40W0XdZUEcvsCvY/Js0ZMr7gUIzrrh1+r5cYZGMYJqQ9/jvnx6R4kKp6 +6FA== X-Gm-Message-State: AOAM530tPzDJHJcrHXzQpRs2+ZkndRSrR53hJr8PvN8vTNCmo0C3vNzK Mzp/o0sSh9u12V3D/6HvSkOivr1SZfJ+IYXae4Alkg== X-Google-Smtp-Source: ABdhPJxOFGsY8qnjWmioIMQMzSoQMpAmcXHTZevYKI2hHLGadP9/WqNGAW9biPUhi7/KRXBONqPTrbpeIRc4H0g10M8= X-Received: by 2002:a17:907:72c8:: with SMTP id du8mr9038155ejc.237.1596299819131; Sat, 01 Aug 2020 09:36:59 -0700 (PDT) MIME-Version: 1.0 References: <159625229779.3040297.11363509688097221416.stgit@dwillia2-desk3.amr.corp.intel.com> <159625231266.3040297.2759117253481288037.stgit@dwillia2-desk3.amr.corp.intel.com> <545078f8-d6d3-5db7-02f6-648218513752@infradead.org> In-Reply-To: <545078f8-d6d3-5db7-02f6-648218513752@infradead.org> From: Dan Williams Date: Sat, 1 Aug 2020 09:36:48 -0700 Message-ID: Subject: Re: [PATCH v3 02/23] x86/numa: Add 'nohmat' option To: Randy Dunlap Cc: Andrew Morton , X86 ML , "Rafael J. Wysocki" , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , Vishal L Verma , Ard Biesheuvel , Linux MM , linux-nvdimm , Joao Martins , Linux Kernel Mailing List , Linux ACPI , Maling list - DRI developers Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Jul 31, 2020 at 8:51 PM Randy Dunlap wrote: > > On 7/31/20 8:25 PM, Dan Williams wrote: > > Disable parsing of the HMAT for debug, to workaround broken platform > > instances, or cases where it is otherwise not wanted. > > > > --- > > arch/x86/mm/numa.c | 2 ++ > > drivers/acpi/numa/hmat.c | 8 +++++++- > > include/acpi/acpi_numa.h | 8 ++++++++ > > 3 files changed, 17 insertions(+), 1 deletion(-) > > > > diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c > > index 87c52822cc44..f3805bbaa784 100644 > > --- a/arch/x86/mm/numa.c > > +++ b/arch/x86/mm/numa.c > > @@ -41,6 +41,8 @@ static __init int numa_setup(char *opt) > > return numa_emu_cmdline(opt + 5); > > if (!strncmp(opt, "noacpi", 6)) > > disable_srat(); > > + if (!strncmp(opt, "nohmat", 6)) > > + disable_hmat(); > > Hopefully that will be documented in > Documentation/x86/x86_64/boot-options.rst. Sorry, yes, you gave that feedback before. I can do a quick respin with this and the kbuild-robot compile fixups.