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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 48336EB64DD for ; Mon, 14 Aug 2023 19:46:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Content-Type: Content-Transfer-Encoding:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:From:References:Cc:To:Subject: MIME-Version:Date:Message-ID:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=DKmsMq8y67bwnz/JEVBX9YkJEkI3NgTyah7mbO/Yjus=; b=XHx2sJUiUxUT0A MTL5kS3Qeyi7oIXdrh9CdDrRxLYFwYV+06PvU0GlnzWmJJ/tbjJdVI8Ex5IB2X1hrssvrlF4pbHGC BvP4Wrjcv3bIiUwgLTm7ubxbxDI8mydbYkdj2HD+J655LDnz5hsunEGKMEVGiK/uT601I40Kg+TJm 2LYM+a3A58mt46eulaK+BsZFvTdtsrS+Fh1CHOT99Op9WtkZgwxw7bLRYy2rC/jpOodggtQMXfWH5 +dBh60rUgc3evcZj1fXG/9rODFYRyqSAvXkdZT2lAabrmeCY5IXAwQUael79X5anfdTVhUzpIa/0z t6+IE243xtGR0rbK6BYg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qVdVs-000F6S-0d; Mon, 14 Aug 2023 19:46:04 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qVdVq-000F5l-0s for linux-snps-arc@lists.infradead.org; Mon, 14 Aug 2023 19:46:03 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D50896160B; Mon, 14 Aug 2023 19:46:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0A53BC433C8; Mon, 14 Aug 2023 19:45:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1692042360; bh=MwNJLmwjfJMC/aYX1uFNyJW8Fvw1ZTrlWvKkYJG+xTY=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=sIGyXX3lYcNNrN+nYDNveoRiYen6H/As6h64B8znxGWzZJCu1R+SFSTpZZPmXcaf8 pyQjl+YERFXYRp6by2BRvfFjwHobS16yaKLLEUPwTnx2+WzwX6F+UTEERmyFAxbfP7 KgOjtooawddGAkMAAS7AtXrzcDAfVvkIpAJsCALUB9U7U7MjNbTwZRe+aJsbxra9qO x8+hUX35RLc/J11LSyuEyLrTq1QLsA5bBHXN5I2H/aYcnTb+BOyq/OSFzStD1Q5UOe M55QMaoafnQ2ZR4uyqet1MEOhB6rtfHOCdtn3q1x28o39HSi4iqJfxEnalS76VOgj0 J3y/3JamSSKPw== Message-ID: Date: Mon, 14 Aug 2023 12:45:59 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH] ARC: mm: retire support for aliasing VIPT D$ Content-Language: en-US To: Andrew Morton , Vineet Gupta Cc: linux-snps-arc@lists.infradead.org, rppt@kernel.org, willy@infradead.org References: <20230813192543.474957-1-vgupta@kernel.org> <20230814123822.f117e89873c9bfc62ed0df33@linux-foundation.org> From: Vineet Gupta In-Reply-To: <20230814123822.f117e89873c9bfc62ed0df33@linux-foundation.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230814_124602_375860_6D82715B X-CRM114-Status: GOOD ( 12.56 ) X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On 8/14/23 12:38, Andrew Morton wrote: > On Sun, 13 Aug 2023 12:25:43 -0700 Vineet Gupta wrote: > >> Legacy ARC700 processors (first generation of MMU enabled ARC cores) has >> VIPT cached which could be configured such that they could alias. >> I added the VIPT aliasing support, with all the cache flush overhead to >> support all but 1 silicon. That is long bygone and we can remove the >> complexity and maintenance burden of that unneeded code. >> >> This also helps streamline support for new features such as generic folio >> work. >> > This of course messes up Matthew's "arc: implement the new page table > range API". Are you or Matthew up for redoing that patch? > > Alternatively, can you redo this patch on top of Matthew's patch (ie, > against mm-unstable or linux-next)? Yeah I'll let Matthew's code get merged and redo mine once that is upstream to avoid conflicts in transition. Thx, -Vineet _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc