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{ "id": 818133, "url": "http://patchwork.ozlabs.org/api/covers/818133/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/cover/1506330344-31556-1-git-send-email-vladimir.murzin@arm.com/", "project": { "id": 19, "url": "http://patchwork.ozlabs.org/api/projects/19/?format=api", "name": "Linux IMX development", "link_name": "linux-imx", "list_id": "linux-imx-kernel.lists.patchwork.ozlabs.org", "list_email": "linux-imx-kernel@lists.patchwork.ozlabs.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1506330344-31556-1-git-send-email-vladimir.murzin@arm.com>", "list_archive_url": null, "date": "2017-09-25T09:05:36", "name": "[v3,0/8] ARM: NOMMU: MPU updates", "submitter": { "id": 65248, "url": "http://patchwork.ozlabs.org/api/people/65248/?format=api", "name": "Vladimir Murzin", "email": "vladimir.murzin@arm.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-imx/cover/1506330344-31556-1-git-send-email-vladimir.murzin@arm.com/mbox/", "series": [ { "id": 4911, "url": "http://patchwork.ozlabs.org/api/series/4911/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/list/?series=4911", "date": "2017-09-25T09:05:36", "name": "ARM: NOMMU: MPU updates", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/4911/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/818133/comments/", "headers": { "Return-Path": "<linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org>", "X-Original-To": "incoming-imx@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming-imx@bilbo.ozlabs.org", "Authentication-Results": [ "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=lists.infradead.org\n\t(client-ip=65.50.211.133; helo=bombadil.infradead.org;\n\tenvelope-from=linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dkim=pass (2048-bit key;\n\tunprotected) header.d=lists.infradead.org\n\theader.i=@lists.infradead.org\n\theader.b=\"VeCFcAvd\"; dkim-atps=neutral" ], "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n\t[65.50.211.133])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3y0yrC04Wjz9sDB\n\tfor <incoming-imx@patchwork.ozlabs.org>;\n\tMon, 25 Sep 2017 19:06:35 +1000 (AEST)", "from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dwPLS-0001YX-SL; Mon, 25 Sep 2017 09:06:30 +0000", "from foss.arm.com ([217.140.101.70])\n\tby bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dwPLP-0001KD-2e for linux-arm-kernel@lists.infradead.org;\n\tMon, 25 Sep 2017 09:06:28 +0000", "from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249])\n\tby usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EDE451529;\n\tMon, 25 Sep 2017 02:06:04 -0700 (PDT)", "from bc-c11-3-12.euhpc.arm.com. (bc-c11-3-12.euhpc.arm.com\n\t[10.6.2.250])\n\tby usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id\n\t71A0F3F3E1; Mon, 25 Sep 2017 02:06:03 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;\n\td=lists.infradead.org; s=bombadil.20170209; h=Sender:\n\tContent-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post:\n\tList-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To\n\t:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:\n\tResent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:\n\tList-Owner; bh=+5UEn1KG1HOp+7KCVDIFbVVeb3GSwT2tk/TLtdfIkj4=;\n\tb=VeCFcAvdaNmLgn\n\tsHazB/8c/srPgNmfUxpaL+8M4vHT1Gld60LUWMvNYU1nHsq08gwdQidhLQ2f/rk9C8Hl1W1yYMMnz\n\tdjVNHq847ANXpgKBddIO6vvDhRrHP4jR7LOKBTAxoBxGRiwaFBQ2TQTbjQhr27v9uyMITtrpb3xT7\n\tSQQMHwNOnajzk1kqyWtDtaOQmtOSJNqmqhWFncx4NGNQzbI1GzQps+Y1Gv8/Rxw5xhriw0k7mgFlF\n\tcofGec3u83uarx8VzIGGK9C2/hZYKIZwKPYfP6IL3rriI60gsyFlkTT2SAiEWL6oPzzLXnIjCnThJ\n\ttiPLoBqMjcsr7O0lBBLw==;", "From": "Vladimir Murzin <vladimir.murzin@arm.com>", "To": "linux-arm-kernel@lists.infradead.org", "Subject": "[PATCH v3 0/8] ARM: NOMMU: MPU updates", "Date": "Mon, 25 Sep 2017 10:05:36 +0100", "Message-Id": "<1506330344-31556-1-git-send-email-vladimir.murzin@arm.com>", "X-Mailer": "git-send-email 2.0.0", "MIME-Version": "1.0", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20170925_020627_126961_9DB7370A ", "X-CRM114-Status": "GOOD ( 11.29 )", "X-Spam-Score": "-6.9 (------)", "X-Spam-Report": "SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-6.9 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/,\n\thigh trust [217.140.101.70 listed in list.dnswl.org]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 RP_MATCHES_RCVD Envelope sender domain matches handover relay\n\tdomain\n\t-1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1%\n\t[score: 0.0000]", "X-BeenThere": "linux-arm-kernel@lists.infradead.org", "X-Mailman-Version": "2.1.21", "Precedence": "list", "List-Unsubscribe": "<http://lists.infradead.org/mailman/options/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=unsubscribe>", "List-Archive": "<http://lists.infradead.org/pipermail/linux-arm-kernel/>", "List-Post": "<mailto:linux-arm-kernel@lists.infradead.org>", "List-Help": "<mailto:linux-arm-kernel-request@lists.infradead.org?subject=help>", "List-Subscribe": "<http://lists.infradead.org/mailman/listinfo/linux-arm-kernel>,\n\t<mailto:linux-arm-kernel-request@lists.infradead.org?subject=subscribe>", "Cc": "alexandre.torgue@st.com, manabian@gmail.com, linux@armlinux.org.uk,\n\tstefan@agner.ch, kbuild-all@01.org, u.kleine-koenig@pengutronix.de,\n\tsza@esh.hu", "Content-Type": "text/plain; charset=\"utf-8\"", "Content-Transfer-Encoding": "base64", "Sender": "\"linux-arm-kernel\" <linux-arm-kernel-bounces@lists.infradead.org>", "Errors-To": "linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org", "List-Id": "linux-imx-kernel.lists.patchwork.ozlabs.org" }, "content": "Hi,\n\nThis is an update of the existent MPU code which consist set of\nclean-ups and enhancements. The most significant changes are in the\nway how MPU settings sync-up for secondaries (PATCH 3/8), more\nflexible layout for memory (PATCH 7/8) and support for XIP (PATCH\n8/8). Since there is no in-tree user of MPU, support for M-class has\nbeen added (PATCH 6/8).\n\nThere is also practical benefit of patch set:\n\n\"These MPU patches introduce a nice feature that it simplifies the\nbootloader: do not need to setup the MPU, for example for coherent DMA\nregion, which is described in device-tree too.\" András Szemző\n\nChangelog:\n v2 -> v3\n - fixed support for XIP (PATCH 8/8)\n\t - rebased on 4.14-rc2\n\n v1 -> v2\n - support for XIP (PATCH 8/8)\n\t - rebased on 4.13-rc1\n\n RFC v2 -> v1\n - dropped RFC tag\n\t - Tested-by from András\n\t - rebased on 4.12-rc5\n\n RFC -> RFC v2\n\t - fixed MPU enable for v7m (PATCH 6/7)\n\nThanks!\n\nVladimir Murzin (8):\n ARM: NOMMU: Move out MPU setup in separate module\n ARM: NOMMU: Update MPU accessors to use cp15 helpers\n ARM: NOMMU: Rework MPU to be mostly done in C\n ARM: NOMMU: Disallow MPU for XIP\n ARM: Kconfig: Kill CONFIG_VECTORS_BASE\n ARM: V7M: Add support for MPU to M-class\n ARM: NOMMU: Use more MPU regions to cover memory\n ARM: NOMMU: Support MPU in XIP configuration\n\n arch/arm/Kconfig | 9 -\n arch/arm/Kconfig-nommu | 4 +-\n arch/arm/include/asm/cputype.h | 10 +\n arch/arm/include/asm/mpu.h | 26 +-\n arch/arm/include/asm/smp.h | 2 +-\n arch/arm/include/asm/v7m.h | 10 +\n arch/arm/kernel/asm-offsets.c | 11 +\n arch/arm/kernel/head-nommu.S | 148 +++++++++---\n arch/arm/kernel/smp.c | 2 +-\n arch/arm/kernel/vmlinux-xip.lds.S | 23 ++\n arch/arm/mm/Makefile | 1 +\n arch/arm/mm/nommu.c | 254 +-------------------\n arch/arm/mm/pmsa-v7.c | 484 ++++++++++++++++++++++++++++++++++++++\n 13 files changed, 682 insertions(+), 302 deletions(-)\n create mode 100644 arch/arm/mm/pmsa-v7.c" }