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=-5.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 BB3D7C3A59E for ; Wed, 21 Aug 2019 13:25:46 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8DBDE2339E for ; Wed, 21 Aug 2019 13:25:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="njeMCN4P" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8DBDE2339E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=huawei.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:Date:Message-ID:From: References:To:Subject:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=CbdjH0Cpfxm7uk73WvgWEzIzvLhLF+1DVJCGROZlY6Y=; b=njeMCN4PXUQlRao6D6Rqr4bxB dLl3zTcx9BaG33OsswCa0vywQuOloCrScJ8tEvjwtF84xR9Qkeb9+uMsPAGAvlgoAc9doP6CZWR9t w2y6+TxaL+AKo/puxOAKAkHvUin0/0XJ9adDa4Dsple7+Z55fzRcT380UyCZ+6wbfedpSHfE9XPgv B9iZFDAiQfWCPBSQaGJAR4/cupEy8L6FypAZoR1w9XRercvUmuPcwzQrkulncDAkMSLlngYl+3/mq nCcJH/w6zrQeJo0l/1LQHFiHYqGTvGgd2j7IiTc8oFJK0foCjFL4GGIKpnNSn/331ujKpZtCXA6mb qVTCLVOtw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i0QcU-0000a2-1N; Wed, 21 Aug 2019 13:25:46 +0000 Received: from szxga06-in.huawei.com ([45.249.212.32] helo=huawei.com) by bombadil.infradead.org with esmtps (Exim 4.92 #3 (Red Hat Linux)) id 1i0QcQ-0000ZS-13 for linux-arm-kernel@lists.infradead.org; Wed, 21 Aug 2019 13:25:43 +0000 Received: from DGGEMS408-HUB.china.huawei.com (unknown [172.30.72.60]) by Forcepoint Email with ESMTP id DCD092B94FEB0D757D6D; Wed, 21 Aug 2019 21:25:38 +0800 (CST) Received: from [127.0.0.1] (10.202.227.238) by DGGEMS408-HUB.china.huawei.com (10.3.19.208) with Microsoft SMTP Server id 14.3.439.0; Wed, 21 Aug 2019 21:25:30 +0800 Subject: Re: [PATCH v4 1/2] ACPI/PPTT: Add support for ACPI 6.3 thread flag To: Jeremy Linton , Will Deacon , "Rafael J. Wysocki" References: <20190808204007.30110-1-jeremy.linton@arm.com> <20190808204007.30110-2-jeremy.linton@arm.com> <20190808222518.5q4fhd2tvs4lb6aw@rric.localdomain> <20190812115907.kugk57jvv3g2r66a@willie-the-truck> <72ee16ea-1038-37a1-25b1-f28b5c6b6edb@arm.com> From: John Garry Message-ID: <896bb13c-c2fc-ab17-6a98-bddfb041b36e@huawei.com> Date: Wed, 21 Aug 2019 14:25:23 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0 MIME-Version: 1.0 In-Reply-To: <72ee16ea-1038-37a1-25b1-f28b5c6b6edb@arm.com> X-Originating-IP: [10.202.227.238] X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190821_062542_243749_75638D1B X-CRM114-Status: GOOD ( 14.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "lorenzo.pieralisi@arm.com" , "rric@kernel.org" , "catalin.marinas@arm.com" , "rjw@rjwysocki.net" , "linux-acpi@vger.kernel.org" , Robert Richter , wanghuiqiang , "sudeep.holla@arm.com" , "linux-arm-kernel@lists.infradead.org" , "lenb@kernel.org" Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 21/08/2019 14:20, Jeremy Linton wrote: > Hi, > > On 8/20/19 4:01 AM, John Garry wrote: >> On 12/08/2019 12:59, Will Deacon wrote: >>> On Mon, Aug 12, 2019 at 11:06:07AM +0200, Rafael J. Wysocki wrote: >>>> On Fri, Aug 9, 2019 at 12:25 AM Robert Richter >>>> wrote: >>>>> >>>>> On 08.08.19 15:40:06, Jeremy Linton wrote: >>>>>> ACPI 6.3 adds a flag to the CPU node to indicate whether >>>>>> the given PE is a thread. Add a function to return that >>>>>> information for a given linux logical CPU. >>>>>> >>>>>> Signed-off-by: Jeremy Linton >>>>>> Reviewed-by: Sudeep Holla >>>>>> --- >>>>>> drivers/acpi/pptt.c | 53 >>>>>> +++++++++++++++++++++++++++++++++++++++++++- >>>>>> include/linux/acpi.h | 5 +++++ >>>>>> 2 files changed, 57 insertions(+), 1 deletion(-) >>>>> >>>>> Reviewed-by: Robert Richter >>>> >>>> Acked-by: Rafael J. Wysocki >>>> >>>> and please push it through ARM64 along with the second patch. >>> >>> Thanks. I'll push these into -next shortly. >> >> >> Hi Jeremy, >> >> We're considering requesting this support is backported to stable. We >> have a platform which incorrectly sets the MT bit. To update our >> firmware to PPTT v2, we need the kernel to support PPTT v2 also. >> >> Please let me know if you anticipate an issue in this. > > No I don't see any issues with that once it lands. > > I believe the ball is rolling in the case of some older distro kernel's > as well. Cool. Cheers, John > > Thanks, > > . > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel