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{ "id": 808586, "url": "http://patchwork.ozlabs.org/api/covers/808586/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/cover/1504255066-5103-1-git-send-email-geert+renesas@glider.be/", "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": "<1504255066-5103-1-git-send-email-geert+renesas@glider.be>", "list_archive_url": null, "date": "2017-09-01T08:37:43", "name": "[v3,0/3] ARM: renesas: Enable SMP on R-Car E2", "submitter": { "id": 63808, "url": "http://patchwork.ozlabs.org/api/people/63808/?format=api", "name": "Geert Uytterhoeven", "email": "geert+renesas@glider.be" }, "mbox": "http://patchwork.ozlabs.org/project/linux-imx/cover/1504255066-5103-1-git-send-email-geert+renesas@glider.be/mbox/", "series": [ { "id": 974, "url": "http://patchwork.ozlabs.org/api/series/974/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/list/?series=974", "date": "2017-09-01T08:37:43", "name": "ARM: renesas: Enable SMP on R-Car E2", "version": 3, "mbox": "http://patchwork.ozlabs.org/series/974/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/808586/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=\"GIUBrf42\"; 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 3xkCM62mVpz9sPk\n\tfor <incoming-imx@patchwork.ozlabs.org>;\n\tFri, 1 Sep 2017 18:38:42 +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 1dnhTK-0006vc-10; Fri, 01 Sep 2017 08:38:38 +0000", "from xavier.telenet-ops.be ([2a02:1800:120:4::f00:14])\n\tby bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux))\n\tid 1dnhT0-0006fR-W3 for linux-arm-kernel@lists.infradead.org;\n\tFri, 01 Sep 2017 08:38:21 +0000", "from ayla.of.borg ([84.195.106.246])\n\tby xavier.telenet-ops.be with bizsmtp\n\tid 48do1w00M5JzmfG018doRw; Fri, 01 Sep 2017 10:37:50 +0200", "from ramsan.of.borg ([192.168.97.29] helo=ramsan)\n\tby ayla.of.borg with esmtp (Exim 4.86_2)\n\t(envelope-from <geert@linux-m68k.org>)\n\tid 1dnhSR-0002Y4-QM; Fri, 01 Sep 2017 10:37:43 +0200", "from geert by ramsan with local (Exim 4.86_2)\n\t(envelope-from <geert@linux-m68k.org>)\n\tid 1dnhSW-0001L2-9h; Fri, 01 Sep 2017 10:37:48 +0200" ], "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:MIME-Version:Cc:List-Subscribe:\n\tList-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date:\n\tSubject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date:\n\tResent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:\n\tReferences:List-Owner; bh=fzv7S8hUwPpxazkHQGbs6iR7lYpy/aXkSzqej9pfZEA=;\n\tb=GIU\n\tBrf42DEFBfN5j542EuPYb5VM9o600K2uYYusw4T4iOSLnOtlkvCJzBiMshCcLlBXPm636yoPaEo5i\n\t+J2ekYjl7+OL/QAV9hLUt8wJel5Jkwo1ma7cLF5QOEOiJEO7PomSm1QU/Q9PQAdAEA9f8yfiRXvsA\n\tikdJHc2pdU7H1ip4/2BTNFrLrCSTciiGOxv70FpSH/cSvROkzXUXZ8a8VlDnQvrtKzLI4YTE4QTxl\n\tzKzcwZftSjrk9JKNZa6DkE9RFFgO3u232xROyDBUbSU8bxhasez5EEkRV54uM5MKqPVebZ5ZCf9vh\n\tV9wvhfvNxBHBywTe/jwDMwyrQpv2efg==;", "From": "Geert Uytterhoeven <geert+renesas@glider.be>", "To": "Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>, \n\tRussell King <linux@armlinux.org.uk>,\n\tCatalin Marinas <catalin.marinas@arm.com>,\n\tMarc Zyngier <marc.zyngier@arm.com>, Mark Rutland <mark.rutland@arm.com>", "Subject": "[PATCH v3 0/3] ARM: renesas: Enable SMP on R-Car E2", "Date": "Fri, 1 Sep 2017 10:37:43 +0200", "Message-Id": "<1504255066-5103-1-git-send-email-geert+renesas@glider.be>", "X-Mailer": "git-send-email 2.7.4", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20170901_013819_279127_50F00947 ", "X-CRM114-Status": "GOOD ( 13.65 )", "X-Spam-Score": "-2.6 (--)", "X-Spam-Report": "SpamAssassin version 3.4.1 on bombadil.infradead.org summary:\n\tContent analysis details: (-2.6 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.7 RCVD_IN_DNSWL_LOW RBL: Sender listed at http://www.dnswl.org/,\n\tlow\n\ttrust [2a02:1800:120:4:0:0:f00:14 listed in] [list.dnswl.org]\n\t0.0 HEADER_FROM_DIFFERENT_DOMAINS From and EnvelopeFrom 2nd level\n\tmail domains are different\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": "linux-renesas-soc@vger.kernel.org,\n\tGeert Uytterhoeven <geert+renesas@glider.be>,\n\tlinux-arm-kernel@lists.infradead.org", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "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 all,\n\nThis patch series enables SMP on R-Car E2 (r8a7794).\nThe main hurdle here is that R-Car Gen2 boot loaders do not initialize the\narch_timer CNTVOFF register, which thus needs workarounds on Linux.\n\n - The first patch adds a definition for MON_MODE, as suggested by Marc\n Zyngier,\n - The second patch makes sure CNTVOFF is initialized for boot and\n secondary Cortex-A15 and Cortex-A7 CPU cores, like is already done\n for the boot Cortex-A7 CPU core. Without this, the ARM arch timer\n does not work on secondary CPU cores.\n This patch depends on \"[PATCH v2] ARM: shmobile: rcar-gen2: Correct\n arch timer frequency on RZ/G1E\".\n - The third patch adds the required infrastructure (APMU device node\n and corresponding enable-method) to DT.\n Obviously this must not be applied on a branch that does not contain\n the first two patches!\n\nDue to dependencies, I think it is easiest if the ARM maintainers provide\ntheir Acked-by for patch 1, so the whole series can go in through Simon's\nRenesas tree.\n\nChanges compared to v2:\n - Replace \"isb\" by \"instr_sync\" to fix the arm v6 build (e.g.\n allmodconfig),\n\nChanges compared to v1:\n - New patch \"[PATCH v2 1/3] ARM: Add definition for monitor mode\",\n - Initialize CNTVOFF on Cortex-A15, too,\n - Use *_MODE definitions instead of hardcoded values,\n - Reduce duplication by calling the asm version from C,\n - Always build headsmp-apmu.o on R-Car Gen2.\n\nThis has been tested on r8a7794/alt (dual Cortex-A7), and regression-tested\non r8a7790/lager (quad Cortex-A15), and r8a7791/koelsch, r8a7791/porter,\nr8a7792/blanche, and r8a7793/gose (dual Cortex-A15).\n\nThanks!\n\nGeert Uytterhoeven (2):\n ARM: Add definition for monitor mode\n ARM: shmobile: rcar-gen2: Make sure CNTVOFF is initialized on CA7/15\n\nSergei Shtylyov (1):\n ARM: dts: r8a7794: Add SMP support\n\n arch/arm/boot/dts/r8a7794.dtsi | 7 ++++++\n arch/arm/include/uapi/asm/ptrace.h | 1 +\n arch/arm/mach-shmobile/Makefile | 1 +\n arch/arm/mach-shmobile/common.h | 2 ++\n arch/arm/mach-shmobile/headsmp-apmu.S | 37 ++++++++++++++++++++++++++++++++\n arch/arm/mach-shmobile/platsmp-apmu.c | 2 +-\n arch/arm/mach-shmobile/setup-rcar-gen2.c | 20 ++---------------\n 7 files changed, 51 insertions(+), 19 deletions(-)\n create mode 100644 arch/arm/mach-shmobile/headsmp-apmu.S" }