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GET /api/patches/783380/?format=api
{ "id": 783380, "url": "http://patchwork.ozlabs.org/api/patches/783380/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1499074673-30576-3-git-send-email-anju@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<1499074673-30576-3-git-send-email-anju@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/1499074673-30576-3-git-send-email-anju@linux.vnet.ibm.com/", "date": "2017-07-03T09:37:48", "name": "[v12,02/10] powerpc/powernv: Autoload IMC device driver module", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "6d1ab8a714f7ea1124b2926c0090250f8021c396", "submitter": { "id": 67491, "url": "http://patchwork.ozlabs.org/api/people/67491/?format=api", "name": "Anju T Sudhakar", "email": "anju@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/1499074673-30576-3-git-send-email-anju@linux.vnet.ibm.com/mbox/", "series": [], "comments": "http://patchwork.ozlabs.org/api/patches/783380/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/783380/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3x1McF10HYz9rxl\n\tfor <patchwork-incoming@ozlabs.org>;\n\tMon, 3 Jul 2017 19:42:21 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3x1McF0DZ9zDrF6\n\tfor <patchwork-incoming@ozlabs.org>;\n\tMon, 3 Jul 2017 19:42:21 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com\n\t[148.163.158.5])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3x1MWV0zwmzDr4L\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tMon, 3 Jul 2017 19:38:13 +1000 (AEST)", "from pps.filterd (m0098416.ppops.net [127.0.0.1])\n\tby mx0b-001b2d01.pphosted.com (8.16.0.20/8.16.0.20) with SMTP id\n\tv639XfkP023045\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 3 Jul 2017 05:38:11 -0400", "from e23smtp01.au.ibm.com (e23smtp01.au.ibm.com [202.81.31.143])\n\tby mx0b-001b2d01.pphosted.com with ESMTP id 2bfjk3a2r9-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 03 Jul 2017 05:38:11 -0400", "from localhost\n\tby e23smtp01.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@lists.ozlabs.org> from <anju@linux.vnet.ibm.com>;\n\tMon, 3 Jul 2017 19:38:08 +1000", "from d23relay09.au.ibm.com (202.81.31.228)\n\tby e23smtp01.au.ibm.com (202.81.31.207) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tMon, 3 Jul 2017 19:38:06 +1000", "from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97])\n\tby d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id\n\tv639c5BP60162284\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 3 Jul 2017 19:38:05 +1000", "from d23av03.au.ibm.com (localhost [127.0.0.1])\n\tby d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id\n\tv639btfq027722\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 3 Jul 2017 19:37:56 +1000", "from xenial-xerus.in.ibm.com (xenial-xerus.in.ibm.com [9.124.35.20]\n\t(may be forged))\n\tby d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id\n\tv639bkFP027271; Mon, 3 Jul 2017 19:37:53 +1000" ], "From": "Anju T Sudhakar <anju@linux.vnet.ibm.com>", "To": "mpe@ellerman.id.au", "Subject": "[PATCH v12 02/10] powerpc/powernv: Autoload IMC device driver module", "Date": "Mon, 3 Jul 2017 15:07:48 +0530", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1499074673-30576-1-git-send-email-anju@linux.vnet.ibm.com>", "References": "<1499074673-30576-1-git-send-email-anju@linux.vnet.ibm.com>", "X-TM-AS-MML": "disable", "x-cbid": "17070309-1617-0000-0000-000001F0CF0C", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17070309-1618-0000-0000-000048381596", "Message-Id": "<1499074673-30576-3-git-send-email-anju@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-07-03_06:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=1\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000\n\tdefinitions=main-1707030160", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.23", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "stewart@linux.vnet.ibm.com, ego@linux.vnet.ibm.com, mikey@neuling.org,\n\tmaddy@linux.vnet.ibm.com, hemant@linux.vnet.ibm.com,\n\tlinux-kernel@vger.kernel.org, eranian@google.com,\n\tanju@linux.vnet.ibm.com, anton@samba.org, sukadev@linux.vnet.ibm.com,\n\tlinuxppc-dev@lists.ozlabs.org, dja@axtens.net", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "Code to create platform device for the IMC counters.\nPaltform devices are created based on the IMC compatibility\nstring.\n\nNew Config flag \"CONFIG_HV_PERF_IMC_CTRS\" add to contain the\nIMC counter changes.\n\nSigned-off-by: Anju T Sudhakar <anju@linux.vnet.ibm.com>\nSigned-off-by: Hemant Kumar <hemant@linux.vnet.ibm.com>\nSigned-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>\n---\n arch/powerpc/platforms/powernv/Kconfig | 10 +++++\n arch/powerpc/platforms/powernv/Makefile | 1 +\n arch/powerpc/platforms/powernv/opal-imc.c | 73 +++++++++++++++++++++++++++++++\n arch/powerpc/platforms/powernv/opal.c | 18 ++++++++\n 4 files changed, 102 insertions(+)\n create mode 100644 arch/powerpc/platforms/powernv/opal-imc.c", "diff": "diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig\nindex 6a6f4ef46b9e..543c6cd5e8d3 100644\n--- a/arch/powerpc/platforms/powernv/Kconfig\n+++ b/arch/powerpc/platforms/powernv/Kconfig\n@@ -30,3 +30,13 @@ config OPAL_PRD\n \thelp\n \t This enables the opal-prd driver, a facility to run processor\n \t recovery diagnostics on OpenPower machines\n+\n+config HV_PERF_IMC_CTRS\n+ bool \"Hypervisor supplied In Memory Collection PMU events (Nest & Core)\"\n+ default y\n+ depends on PERF_EVENTS && PPC_POWERNV\n+ help\n+\t Enable access to hypervisor supplied in-memory collection counters\n+\t in perf. IMC counters are available from Power9 systems.\n+\n+ If unsure, select Y.\ndiff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile\nindex b5d98cb3f482..715e531f6711 100644\n--- a/arch/powerpc/platforms/powernv/Makefile\n+++ b/arch/powerpc/platforms/powernv/Makefile\n@@ -12,3 +12,4 @@ obj-$(CONFIG_PPC_SCOM)\t+= opal-xscom.o\n obj-$(CONFIG_MEMORY_FAILURE)\t+= opal-memory-errors.o\n obj-$(CONFIG_TRACEPOINTS)\t+= opal-tracepoints.o\n obj-$(CONFIG_OPAL_PRD)\t+= opal-prd.o\n+obj-$(CONFIG_HV_PERF_IMC_CTRS) += opal-imc.o\ndiff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c\nnew file mode 100644\nindex 000000000000..5b1045c81af4\n--- /dev/null\n+++ b/arch/powerpc/platforms/powernv/opal-imc.c\n@@ -0,0 +1,73 @@\n+/*\n+ * OPAL IMC interface detection driver\n+ * Supported on POWERNV platform\n+ *\n+ * Copyright\t(C) 2017 Madhavan Srinivasan, IBM Corporation.\n+ *\t\t(C) 2017 Anju T Sudhakar, IBM Corporation.\n+ *\t\t(C) 2017 Hemant K Shaw, IBM Corporation.\n+ *\n+ * This program is free software; you can redistribute it and/or\n+ * modify it under the terms of the GNU General Public License\n+ * as published by the Free Software Foundation; either version\n+ * 2 of the License, or later version.\n+ *\n+ * This program is distributed in the hope that it will be useful,\n+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\n+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n+ * GNU General Public License for more details.\n+ */\n+#include <linux/kernel.h>\n+#include <linux/module.h>\n+#include <linux/platform_device.h>\n+#include <linux/miscdevice.h>\n+#include <linux/fs.h>\n+#include <linux/of.h>\n+#include <linux/of_address.h>\n+#include <linux/of_platform.h>\n+#include <linux/poll.h>\n+#include <linux/mm.h>\n+#include <linux/slab.h>\n+#include <linux/crash_dump.h>\n+#include <asm/opal.h>\n+#include <asm/io.h>\n+#include <asm/uaccess.h>\n+#include <asm/cputable.h>\n+#include <asm/imc-pmu.h>\n+\n+static int opal_imc_counters_probe(struct platform_device *pdev)\n+{\n+\tstruct device_node *imc_dev = NULL;\n+\n+\tif (!pdev || !pdev->dev.of_node)\n+\t\treturn -ENODEV;\n+\n+\t/*\n+\t * Check whether this is kdump kernel. If yes, just return.\n+\t */\n+\tif (is_kdump_kernel())\n+\t\treturn -ENODEV;\n+\n+\timc_dev = pdev->dev.of_node;\n+\tif (!imc_dev)\n+\t\treturn -ENODEV;\n+\n+\treturn 0;\n+}\n+\n+static const struct of_device_id opal_imc_match[] = {\n+\t{ .compatible = IMC_DTB_COMPAT },\n+\t{},\n+};\n+\n+static struct platform_driver opal_imc_driver = {\n+\t.driver = {\n+\t\t.name = \"opal-imc-counters\",\n+\t\t.of_match_table = opal_imc_match,\n+\t},\n+\t.probe = opal_imc_counters_probe,\n+};\n+\n+MODULE_DEVICE_TABLE(of, opal_imc_match);\n+module_platform_driver(opal_imc_driver);\n+MODULE_DESCRIPTION(\"PowerNV OPAL IMC driver\");\n+MODULE_LICENSE(\"GPL\");\ndiff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c\nindex 59684b4af4d1..fbdca259ea76 100644\n--- a/arch/powerpc/platforms/powernv/opal.c\n+++ b/arch/powerpc/platforms/powernv/opal.c\n@@ -14,6 +14,7 @@\n #include <linux/printk.h>\n #include <linux/types.h>\n #include <linux/of.h>\n+#include <linux/of_address.h>\n #include <linux/of_fdt.h>\n #include <linux/of_platform.h>\n #include <linux/interrupt.h>\n@@ -30,6 +31,7 @@\n #include <asm/opal.h>\n #include <asm/firmware.h>\n #include <asm/mce.h>\n+#include <asm/imc-pmu.h>\n \n #include \"powernv.h\"\n \n@@ -705,6 +707,17 @@ static void opal_pdev_init(const char *compatible)\n \t\tof_platform_device_create(np, NULL, NULL);\n }\n \n+#ifdef CONFIG_HV_PERF_IMC_CTRS\n+static void __init opal_imc_init_dev(void)\n+{\n+\tstruct device_node *np;\n+\n+\tnp = of_find_compatible_node(NULL, NULL, IMC_DTB_COMPAT);\n+\tif (np)\n+\t\tof_platform_device_create(np, NULL, NULL);\n+}\n+#endif\n+\n static int kopald(void *unused)\n {\n \tunsigned long timeout = msecs_to_jiffies(opal_heartbeat) + 1;\n@@ -778,6 +791,11 @@ static int __init opal_init(void)\n \t/* Setup a heatbeat thread if requested by OPAL */\n \topal_init_heartbeat();\n \n+#ifdef CONFIG_HV_PERF_IMC_CTRS\n+\t/* Detect IMC pmu counters support and create PMUs */\n+\topal_imc_init_dev();\n+#endif\n+\n \t/* Create leds platform devices */\n \tleds = of_find_node_by_path(\"/ibm,opal/leds\");\n \tif (leds) {\n", "prefixes": [ "v12", "02/10" ] }