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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 21 Feb 2020 03:28:08 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 01L3S7Xw51314800 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 21 Feb 2020 03:28:07 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id BADFCA405C; Fri, 21 Feb 2020 03:28:07 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1E1F6A4054; Fri, 21 Feb 2020 03:28:07 +0000 (GMT) Received: from ozlabs.au.ibm.com (unknown [9.192.253.14]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 21 Feb 2020 03:28:07 +0000 (GMT) Received: from adsilva.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.au.ibm.com (Postfix) with ESMTPSA id 82291A0209; Fri, 21 Feb 2020 14:28:02 +1100 (AEDT) From: "Alastair D'Silva" To: alastair@d-silva.org Cc: "Aneesh Kumar K . V" , "Oliver O'Halloran" , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Frederic Barrat , Andrew Donnellan , Arnd Bergmann , Greg Kroah-Hartman , Dan Williams , Vishal Verma , Dave Jiang , Ira Weiny , Andrew Morton , Mauro Carvalho Chehab , "David S. Miller" , Rob Herring , Anton Blanchard , Krzysztof Kozlowski , Mahesh Salgaonkar , Madhavan Srinivasan , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Anju T Sudhakar , Hari Bathini , Thomas Gleixner , Greg Kurz , Nicholas Piggin , Masahiro Yamada , Alexey Kardashevskiy , linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-nvdimm@lists.01.org, linux-mm@kvack.org Subject: [PATCH v3 00/27] Add support for OpenCAPI Persistent Memory devices Date: Fri, 21 Feb 2020 14:26:53 +1100 X-Mailer: git-send-email 2.24.1 MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20022103-0020-0000-0000-000003AC220E X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20022103-0021-0000-0000-000022042A30 Message-Id: <20200221032720.33893-1-alastair@au1.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.572 definitions=2020-02-20_19:2020-02-19,2020-02-20 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 clxscore=1015 priorityscore=1501 bulkscore=0 suspectscore=1 malwarescore=0 mlxlogscore=999 spamscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2002210020 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Alastair D'Silva This series adds support for OpenCAPI Persistent Memory devices, exposing them as nvdimms so that we can make use of the existing infrastructure. Alastair D'Silva (27): powerpc: Add OPAL calls for LPC memory alloc/release mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers powerpc: Map & release OpenCAPI LPC memory ocxl: Remove unnecessary externs ocxl: Address kernel doc errors & warnings ocxl: Tally up the LPC memory on a link & allow it to be mapped ocxl: Add functions to map/unmap LPC memory ocxl: Emit a log message showing how much LPC memory was detected ocxl: Save the device serial number in ocxl_fn powerpc: Add driver for OpenCAPI Persistent Memory powerpc: Enable the OpenCAPI Persistent Memory driver for powernv_defconfig powerpc/powernv/pmem: Add register addresses & status values to the header powerpc/powernv/pmem: Read the capability registers & wait for device ready powerpc/powernv/pmem: Add support for Admin commands powerpc/powernv/pmem: Add support for near storage commands powerpc/powernv/pmem: Register a character device for userspace to interact with powerpc/powernv/pmem: Implement the Read Error Log command powerpc/powernv/pmem: Add controller dump IOCTLs powerpc/powernv/pmem: Add an IOCTL to report controller statistics powerpc/powernv/pmem: Forward events to userspace powerpc/powernv/pmem: Add an IOCTL to request controller health & perf data powerpc/powernv/pmem: Implement the heartbeat command powerpc/powernv/pmem: Add debug IOCTLs powerpc/powernv/pmem: Expose SMART data via ndctl powerpc/powernv/pmem: Expose the serial number in sysfs powerpc/powernv/pmem: Expose the firmware version in sysfs MAINTAINERS: Add myself & nvdimm/ocxl to ocxl MAINTAINERS | 3 + arch/powerpc/configs/powernv_defconfig | 5 + arch/powerpc/include/asm/opal-api.h | 2 + arch/powerpc/include/asm/opal.h | 3 + arch/powerpc/include/asm/pnv-ocxl.h | 40 +- arch/powerpc/platforms/powernv/Kconfig | 3 + arch/powerpc/platforms/powernv/Makefile | 1 + arch/powerpc/platforms/powernv/ocxl.c | 43 + arch/powerpc/platforms/powernv/opal-call.c | 2 + arch/powerpc/platforms/powernv/pmem/Kconfig | 21 + arch/powerpc/platforms/powernv/pmem/Makefile | 7 + arch/powerpc/platforms/powernv/pmem/ocxl.c | 1991 +++++++++++++++++ .../platforms/powernv/pmem/ocxl_internal.c | 213 ++ .../platforms/powernv/pmem/ocxl_internal.h | 254 +++ .../platforms/powernv/pmem/ocxl_sysfs.c | 46 + drivers/misc/ocxl/config.c | 74 +- drivers/misc/ocxl/core.c | 61 + drivers/misc/ocxl/link.c | 53 + drivers/misc/ocxl/ocxl_internal.h | 45 +- include/linux/memory_hotplug.h | 5 + include/misc/ocxl.h | 122 +- include/uapi/linux/ndctl.h | 1 + include/uapi/nvdimm/ocxl-pmem.h | 127 ++ mm/memory_hotplug.c | 4 +- 24 files changed, 3029 insertions(+), 97 deletions(-) create mode 100644 arch/powerpc/platforms/powernv/pmem/Kconfig create mode 100644 arch/powerpc/platforms/powernv/pmem/Makefile create mode 100644 arch/powerpc/platforms/powernv/pmem/ocxl.c create mode 100644 arch/powerpc/platforms/powernv/pmem/ocxl_internal.c create mode 100644 arch/powerpc/platforms/powernv/pmem/ocxl_internal.h create mode 100644 arch/powerpc/platforms/powernv/pmem/ocxl_sysfs.c create mode 100644 include/uapi/nvdimm/ocxl-pmem.h --=20 2.24.1