From patchwork Fri Oct 25 04:46:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alastair D'Silva X-Patchwork-Id: 11211283 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 43327112B for ; Fri, 25 Oct 2019 04:48:44 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 2A62F21D71 for ; Fri, 25 Oct 2019 04:48:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2A62F21D71 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=au1.ibm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from new-ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 76FF9100EEBAB; Thu, 24 Oct 2019 21:50:00 -0700 (PDT) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=alastair@au1.ibm.com; receiver= Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 198EE100EEBA6 for ; Thu, 24 Oct 2019 21:49:55 -0700 (PDT) Received: from pps.filterd (m0098421.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x9P4leSt096967 for ; Fri, 25 Oct 2019 00:48:36 -0400 Received: from e06smtp05.uk.ibm.com (e06smtp05.uk.ibm.com [195.75.94.101]) by mx0a-001b2d01.pphosted.com with ESMTP id 2vuqehvd5y-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 25 Oct 2019 00:48:36 -0400 Received: from localhost by e06smtp05.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 25 Oct 2019 05:48:25 +0100 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x9P4mOAN42991730 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 25 Oct 2019 04:48:24 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 489635204F; Fri, 25 Oct 2019 04:48:24 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTP id 9AAC952051; Fri, 25 Oct 2019 04:48:23 +0000 (GMT) Received: from adsilva.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id C0730A0147; Fri, 25 Oct 2019 15:48:21 +1100 (AEDT) From: "Alastair D'Silva" To: alastair@d-silva.org Subject: [PATCH 00/10] Add support for OpenCAPI SCM devices Date: Fri, 25 Oct 2019 15:46:55 +1100 X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 19102504-0020-0000-0000-0000037E3ECB X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19102504-0021-0000-0000-000021D488E6 Message-Id: <20191025044721.16617-1-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-10-25_02:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1011 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=708 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910250045 Message-ID-Hash: ZZS6XEFHQEWLUER4DHXC7NHUR4NOMTBY X-Message-ID-Hash: ZZS6XEFHQEWLUER4DHXC7NHUR4NOMTBY X-MailFrom: alastair@au1.ibm.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Frederic Barrat , Andrew Donnellan , Arnd Bergmann , Greg Kroah-Hartman , Anton Blanchard , Krzysztof Kozlowski , Geert Uytterhoeven , Anju T Sudhakar , =?utf-8?q?C=C3=A9dric_Le_Goater?= , Mahesh Salgaonkar , Hari Bathini , Vasant Hegde , Thomas Gleixner , Allison Randal , Greg Kurz , Nicholas Piggin , Alexey Kardashevskiy , Masahiro Yamada , Andrew Morton , David Hildenbrand , Oscar Salvador , Michal Hocko , Pavel Tatashin , Wei Yang , Qian Cai , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org, linux-mm@kvack.org X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: From: Alastair D'Silva This series adds support for OpenCAPI SCM devices, exposing them as nvdimms so that we can make use of the existing infrastructure. The first patch (in memory_hotplug) has reviews/acks, but has not yet made it upstream. Alastair D'Silva (10): memory_hotplug: Add a bounds check to __add_pages nvdimm: remove prototypes for nonexistent functions powerpc: Add OPAL calls for LPC memory alloc/release powerpc: Map & release OpenCAPI LPC memory ocxl: Tally up the LPC memory on a link & allow it to be mapped ocxl: Add functions to map/unmap LPC memory ocxl: Save the device serial number in ocxl_fn nvdimm: Add driver for OpenCAPI Storage Class Memory powerpc: Enable OpenCAPI Storage Class Memory driver on bare metal ocxl: Conditionally bind SCM devices to the generic OCXL driver arch/powerpc/configs/powernv_defconfig | 4 + arch/powerpc/include/asm/opal-api.h | 2 + arch/powerpc/include/asm/opal.h | 3 + arch/powerpc/include/asm/pnv-ocxl.h | 2 + arch/powerpc/platforms/powernv/ocxl.c | 41 + arch/powerpc/platforms/powernv/opal-call.c | 2 + drivers/misc/ocxl/Kconfig | 7 + drivers/misc/ocxl/config.c | 50 + drivers/misc/ocxl/core.c | 60 + drivers/misc/ocxl/link.c | 60 + drivers/misc/ocxl/ocxl_internal.h | 36 + drivers/misc/ocxl/pci.c | 3 + drivers/nvdimm/Kconfig | 17 + drivers/nvdimm/Makefile | 3 + drivers/nvdimm/nd-core.h | 4 - drivers/nvdimm/ocxl-scm.c | 2210 ++++++++++++++++++++ drivers/nvdimm/ocxl-scm_internal.c | 232 ++ drivers/nvdimm/ocxl-scm_internal.h | 331 +++ drivers/nvdimm/ocxl-scm_sysfs.c | 219 ++ include/linux/memory_hotplug.h | 5 + include/misc/ocxl.h | 19 + include/uapi/linux/ocxl-scm.h | 128 ++ mm/memory_hotplug.c | 22 + 23 files changed, 3456 insertions(+), 4 deletions(-) create mode 100644 drivers/nvdimm/ocxl-scm.c create mode 100644 drivers/nvdimm/ocxl-scm_internal.c create mode 100644 drivers/nvdimm/ocxl-scm_internal.h create mode 100644 drivers/nvdimm/ocxl-scm_sysfs.c create mode 100644 include/uapi/linux/ocxl-scm.h