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=-3.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT 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 3CCD3C3A5A3 for ; Fri, 30 Aug 2019 06:29:36 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id EA21021721 for ; Fri, 30 Aug 2019 06:29:35 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="CgcPD0qj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EA21021721 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 8DC236B0006; Fri, 30 Aug 2019 02:29:35 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 88DEE6B0008; Fri, 30 Aug 2019 02:29:35 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 77B606B000A; Fri, 30 Aug 2019 02:29:35 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0064.hostedemail.com [216.40.44.64]) by kanga.kvack.org (Postfix) with ESMTP id 52BB16B0006 for ; Fri, 30 Aug 2019 02:29:35 -0400 (EDT) Received: from smtpin03.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id F01F4824CA3B for ; Fri, 30 Aug 2019 06:29:34 +0000 (UTC) X-FDA: 75878117868.03.cake41_53939dc425e17 X-HE-Tag: cake41_53939dc425e17 X-Filterd-Recvd-Size: 2151 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf31.hostedemail.com (Postfix) with ESMTP for ; Fri, 30 Aug 2019 06:29:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=7yhlWg6egM/dV5ihEVYnfI6KRgGSnwmGepLG69PL6tQ=; b=CgcPD0qjdRGWkLkectVZWJjSD tDbwLX7U2fS+zq2cI9MXZ9AvkhMH5Qw3eR+zJKna2fLHHNuEa6PC6NvUqIqEFIbU10av+d0TMGJtk noK+GE4nkoNJxYMC5i1FYni62tqxpcWb2Tk5FcnivFPF5j+zc0jcEry1GyuGfEJ/if/QruocunM1Q XVyy021lBtr9MBHHndaKSaNyL+UvsU9Ryj7fnBEhlA/nB33vd8O60JVFwStyXSBEwrVZildCMQh+o YMREX8u6Y3PAgqu655rM8bC+U685uj3mU7Gr58MY17jQ4972omlfljgs19Jidpk7fNldecMxotC4x 0KO8elXTQ==; Received: from [93.83.86.253] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1i3aPY-0002ok-0S; Fri, 30 Aug 2019 06:29:28 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org Cc: Russell King , Robin Murphy , linux-arm-kernel@lists.infradead.org, linux-xtensa@linux-xtensa.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: cleanup vmap usage in the dma-mapping layer Date: Fri, 30 Aug 2019 08:29:20 +0200 Message-Id: <20190830062924.21714-1-hch@lst.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Content-Transfer-Encoding: quoted-printable 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: Hi all, the common DMA remapping code uses the vmalloc/vmap code to create page table entries for DMA mappings. This series lifts the currently arm specific VM_* flag for that into common code, and also exposes it to userspace in procfs to better understand the mappings.