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=-11.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,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 55BD5C4338F for ; Mon, 16 Aug 2021 19:45:07 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F3C0360F41 for ; Mon, 16 Aug 2021 19:45:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org F3C0360F41 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 8C57E8D0005; Mon, 16 Aug 2021 15:45:06 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 84E788D0001; Mon, 16 Aug 2021 15:45:06 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 716498D0005; Mon, 16 Aug 2021 15:45:06 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0027.hostedemail.com [216.40.44.27]) by kanga.kvack.org (Postfix) with ESMTP id 540F18D0001 for ; Mon, 16 Aug 2021 15:45:06 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id E7C85180938E3 for ; Mon, 16 Aug 2021 19:45:05 +0000 (UTC) X-FDA: 78481972170.08.5468A5F Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf27.hostedemail.com (Postfix) with ESMTP id 811BF7001F7E for ; Mon, 16 Aug 2021 19:45:05 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 54AF560EE5; Mon, 16 Aug 2021 19:45:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1629143104; bh=3vUrvHO/jx7yMiBOS4Ce94K+3n61pUF9j/jGzg2zV9I=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=VGOxvHxh1BCCnbf10ZKR6ppPnPP765JjvB4BCCBoKklLLLuZa3JvHqCkjV5C0mfbz 0TLHlEK9WW+FCeV/V9otKetcGSk4DbaunraYixObvbL92zaNQalSVjHsUSup7acKwc 3+z43KH44NP+WMgic/J3eF6BUPxXW2HQGh9gE83xkkdtXAaHhjD5suq5r0M6HKvL+f Y6sH5LLpPBNZJw130ooco3Ma3yVmGKegEtbOc5i3LinMUZyQ4bUfjt7EIyikrTkxWg qVNT/y/p7/0rmID/2u5nO10Nn42FPaZwtHsVEVtPvtmuJWxhXb7eBx7slrLwcDd1+y 4sgwUgRK+UyJA== Subject: Re: [PATCH v2 01/19] ARC: mm: use SCRATCH_DATA0 register for caching pgdir in ARCv2 only To: Mike Rapoport , Vineet Gupta Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Anshuman Khandual References: <20210812233753.104217-1-vgupta@kernel.org> <20210812233753.104217-2-vgupta@kernel.org> From: Vineet Gupta Message-ID: Date: Mon, 16 Aug 2021 12:45:03 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 811BF7001F7E X-Stat-Signature: ag4934x66wi1crgszrh1wm5ukwz1jdgk Authentication-Results: imf27.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=VGOxvHxh; dmarc=pass (policy=none) header.from=kernel.org; spf=pass (imf27.hostedemail.com: domain of vgupta@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=vgupta@kernel.org X-HE-Tag: 1629143105-303442 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On 8/15/21 2:27 AM, Mike Rapoport wrote: > On Thu, Aug 12, 2021 at 04:37:35PM -0700, Vineet Gupta wrote: >> MMU SCRATCH_DATA0 register is intended to cache task pgd. However in >> ARC700 SMP port, it has to be repurposed for reentrant interrupt >> handling, while UP port doesn't. We currently ahandle boe usecases > ^ handle both > > maybe ':set spell' for changelog editing? ;-) Seriously, about time I stopped fat-fingering