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GET /api/patches/402803/?format=api
{ "id": 402803, "url": "http://patchwork.ozlabs.org/api/patches/402803/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-imx/patch/1414145327-23541-7-git-send-email-jingchang.lu@freescale.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": "<1414145327-23541-7-git-send-email-jingchang.lu@freescale.com>", "list_archive_url": null, "date": "2014-10-24T10:08:47", "name": "[PATCHv6,6/6] ARM: imx: Add Freescale LS1021A SMP support", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "0ee623d5f0eaa74be1371b81aa50bb55d1f29213", "submitter": { "id": 46273, "url": "http://patchwork.ozlabs.org/api/people/46273/?format=api", "name": "Jingchang Lu", "email": "jingchang.lu@freescale.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linux-imx/patch/1414145327-23541-7-git-send-email-jingchang.lu@freescale.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/402803/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/402803/checks/", "tags": {}, "related": [], "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", "Received": [ "from bombadil.infradead.org (bombadil.infradead.org\n\t[IPv6:2001:1868:205::9])\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 A134614007D\n\tfor <incoming-imx@patchwork.ozlabs.org>;\n\tFri, 24 Oct 2014 22:10:31 +1100 (AEDT)", "from localhost ([127.0.0.1] helo=bombadil.infradead.org)\n\tby bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux))\n\tid 1Xhcir-0002dR-Gx; Fri, 24 Oct 2014 11:07:57 +0000", "from mail-by2on0138.outbound.protection.outlook.com\n\t([207.46.100.138] helo=na01-by2-obe.outbound.protection.outlook.com)\n\tby bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat\n\tLinux)) id 1XhcZ4-0007DB-9Q\n\tfor linux-arm-kernel@lists.infradead.org;\n\tFri, 24 Oct 2014 10:57:54 +0000", "from BY2PR03CA069.namprd03.prod.outlook.com (10.141.249.42) by\n\tBL2PR03MB465.namprd03.prod.outlook.com (10.141.92.14) with Microsoft\n\tSMTP Server (TLS) id 15.0.1054.13; Fri, 24 Oct 2014 10:57:28 +0000", "from BL2FFO11FD044.protection.gbl (2a01:111:f400:7c09::144) by\n\tBY2PR03CA069.outlook.office365.com (2a01:111:e400:2c5d::42) with\n\tMicrosoft\n\tSMTP Server (TLS) id 15.1.6.9 via Frontend Transport; Fri, 24 Oct 2014\n\t10:57:27 +0000", "from tx30smr01.am.freescale.net (192.88.168.50) by\n\tBL2FFO11FD044.mail.protection.outlook.com (10.173.161.140) with\n\tMicrosoft SMTP Server (TLS) id 15.0.1049.20 via Frontend Transport;\n\tFri, 24 Oct 2014 10:57:26 +0000", "from rock.ap.freescale.net (rock.ap.freescale.net [10.193.20.106])\n\tby tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id\n\ts9OAv27f011910; Fri, 24 Oct 2014 03:57:24 -0700" ], "From": "Jingchang Lu <jingchang.lu@freescale.com>", "To": "<shawn.guo@linaro.org>", "Subject": "[PATCHv6 6/6] ARM: imx: Add Freescale LS1021A SMP support", "Date": "Fri, 24 Oct 2014 18:08:47 +0800", "Message-ID": "<1414145327-23541-7-git-send-email-jingchang.lu@freescale.com>", "X-Mailer": "git-send-email 1.8.0", "In-Reply-To": "<1414145327-23541-1-git-send-email-jingchang.lu@freescale.com>", "References": "<1414145327-23541-1-git-send-email-jingchang.lu@freescale.com>", "X-EOPAttributedMessage": "0", "X-Forefront-Antispam-Report": "CIP:192.88.168.50; CTRY:US; IPV:CAL; IPV:NLI;\n\tEFV:NLI; SFV:NSPM;\n\tSFS:(10019020)(6009001)(199003)(189002)(107046002)(36756003)(229853001)(48376002)(20776003)(50466002)(47776003)(102836001)(77156001)(2351001)(105606002)(106466001)(86362001)(19580395003)(93916002)(46102003)(99396003)(21056001)(104016003)(120916001)(80022003)(95666004)(19580405001)(6806004)(44976005)(33646002)(76482002)(92726001)(68736004)(104166001)(97736003)(50226001)(4396001)(87936001)(110136001)(31966008)(62966002)(85852003)(84676001)(87286001)(26826002)(76176999)(50986999)(64706001)(92566001)(89996001)(88136002)(85306004);\n\tDIR:OUT; SFP:1102; SCL:1; SRVR:BL2PR03MB465;\n\tH:tx30smr01.am.freescale.net; \n\tFPR:; MLV:ovrnspm; PTR:InfoDomainNonexistent; A:1; MX:1; LANG:en; ", "MIME-Version": "1.0", "X-Microsoft-Antispam": [ "UriScan:;", "BCL:0;PCL:0;RULEID:;SRVR:BL2PR03MB465;" ], "X-Exchange-Antispam-Report-Test": "UriScan:;", "X-Forefront-PRVS": "0374433C81", "Received-SPF": "Fail (protection.outlook.com: domain of freescale.com does not\n\tdesignate 192.88.168.50 as permitted sender)\n\treceiver=protection.outlook.com; \n\tclient-ip=192.88.168.50; helo=tx30smr01.am.freescale.net;", "Authentication-Results": "spf=fail (sender IP is 192.88.168.50)\n\tsmtp.mailfrom=jingchang.lu@freescale.com; ", "X-OriginatorOrg": "freescale.com", "X-CRM114-Version": "20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 ", "X-CRM114-CacheID": "sfid-20141024_035753_587820_323B5F86 ", "X-CRM114-Status": "UNSURE ( 9.55 )", "X-CRM114-Notice": "Please train this message.", "X-Spam-Score": "-0.2 (/)", "X-Spam-Report": "SpamAssassin version 3.4.0 on bombadil.infradead.org summary:\n\tContent analysis details: (-0.2 points)\n\tpts rule name description\n\t---- ----------------------\n\t--------------------------------------------------\n\t-0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/,\n\tno trust [207.46.100.138 listed in list.dnswl.org]\n\t-0.2 RCVD_IN_MSPIKE_H2 RBL: Average reputation (+2)\n\t[207.46.100.138 listed in wl.mailspike.net]\n\t-0.0 SPF_PASS SPF: sender matches SPF record\n\t-0.0 SPF_HELO_PASS SPF: HELO matches SPF record", "Cc": "mark.rutland@arm.com, devicetree@vger.kernel.org,\n\tlinux-arm-kernel@lists.infradead.org, arnd@arndb.de", "X-BeenThere": "linux-arm-kernel@lists.infradead.org", "X-Mailman-Version": "2.1.18-1", "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>", "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": "From: Jingchang Lu <b35083@freescale.com>\n\nFreescale LS1021A SoCs deploy two cortex-A7 processors,\nthis adds bring-up support for the secondary core.\n\nSigned-off-by: Jingchang Lu <b35083@freescale.com>\n---\n arch/arm/mach-imx/Makefile | 2 +-\n arch/arm/mach-imx/common.h | 1 +\n arch/arm/mach-imx/mach-ls1021a.c | 1 +\n arch/arm/mach-imx/platsmp.c | 33 +++++++++++++++++++++++++++++++++\n 4 files changed, 36 insertions(+), 1 deletion(-)", "diff": "diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile\nindex ce137bc..38d75e2 100644\n--- a/arch/arm/mach-imx/Makefile\n+++ b/arch/arm/mach-imx/Makefile\n@@ -89,7 +89,7 @@ obj-$(CONFIG_HAVE_IMX_ANATOP) += anatop.o\n obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o\n obj-$(CONFIG_HAVE_IMX_MMDC) += mmdc.o\n obj-$(CONFIG_HAVE_IMX_SRC) += src.o\n-ifdef CONFIG_SOC_IMX6\n+ifneq ($(CONFIG_SOC_IMX6)$(CONFIG_SOC_LS1021A),)\n AFLAGS_headsmp.o :=-Wa,-march=armv7-a\n obj-$(CONFIG_SMP) += headsmp.o platsmp.o\n obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o\ndiff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h\nindex 1dabf43..c473ca5 100644\n--- a/arch/arm/mach-imx/common.h\n+++ b/arch/arm/mach-imx/common.h\n@@ -157,5 +157,6 @@ static inline void imx_init_l2cache(void) {}\n #endif\n \n extern struct smp_operations imx_smp_ops;\n+extern struct smp_operations ls1021a_smp_ops;\n \n #endif\ndiff --git a/arch/arm/mach-imx/mach-ls1021a.c b/arch/arm/mach-imx/mach-ls1021a.c\nindex 9d2034b..b89c858 100644\n--- a/arch/arm/mach-imx/mach-ls1021a.c\n+++ b/arch/arm/mach-imx/mach-ls1021a.c\n@@ -17,5 +17,6 @@ static const char * const ls1021a_dt_compat[] __initconst = {\n };\n \n DT_MACHINE_START(LS1021A, \"Freescale LS1021A\")\n+\t.smp\t\t= smp_ops(ls1021a_smp_ops),\n \t.dt_compat\t= ls1021a_dt_compat,\n MACHINE_END\ndiff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c\nindex 771bd25..7f27001 100644\n--- a/arch/arm/mach-imx/platsmp.c\n+++ b/arch/arm/mach-imx/platsmp.c\n@@ -11,7 +11,10 @@\n */\n \n #include <linux/init.h>\n+#include <linux/of_address.h>\n+#include <linux/of.h>\n #include <linux/smp.h>\n+\n #include <asm/cacheflush.h>\n #include <asm/page.h>\n #include <asm/smp_scu.h>\n@@ -94,3 +97,33 @@ struct smp_operations imx_smp_ops __initdata = {\n \t.cpu_kill\t\t= imx_cpu_kill,\n #endif\n };\n+\n+#define DCFG_CCSR_SCRATCHRW1\t0x200\n+\n+static int ls1021a_boot_secondary(unsigned int cpu, struct task_struct *idle)\n+{\n+\tarch_send_wakeup_ipi_mask(cpumask_of(cpu));\n+\n+\treturn 0;\n+}\n+\n+static void __init ls1021a_smp_prepare_cpus(unsigned int max_cpus)\n+{\n+\tstruct device_node *np;\n+\tvoid __iomem *dcfg_base;\n+\tunsigned long paddr;\n+\n+\tnp = of_find_compatible_node(NULL, NULL, \"fsl,ls1021a-dcfg\");\n+\tdcfg_base = of_iomap(np, 0);\n+\tBUG_ON(!dcfg_base);\n+\n+\tpaddr = virt_to_phys(secondary_startup);\n+\twritel_relaxed(cpu_to_be32(paddr), dcfg_base + DCFG_CCSR_SCRATCHRW1);\n+\n+\tiounmap(dcfg_base);\n+}\n+\n+struct smp_operations ls1021a_smp_ops __initdata = {\n+\t.smp_prepare_cpus\t= ls1021a_smp_prepare_cpus,\n+\t.smp_boot_secondary\t= ls1021a_boot_secondary,\n+};\n", "prefixes": [ "PATCHv6", "6/6" ] }