[PATCH 00/10] Add support for OpenCAPI SCM devices
flat view
STALE2466d
SUPERSEDED · 1 of 10 landed
From: Alastair D'Silva <hidden>
Date: 2019-10-25 04:48:40
Also in:
linux-mm, lkml, nvdimm
Subsystem:
char and misc drivers, libnvdimm: non-volatile memory device subsystem, linux for powerpc (32-bit and 64-bit), memory hot(un)plug, memory management, ocxl (open coherent accelerator processor interface opencapi) driver, the rest · Maintainers:
Arnd Bergmann, Greg Kroah-Hartman, Dan Williams, Vishal Verma, Dave Jiang, Alison Schofield, Madhavan Srinivasan, David Hildenbrand, Oscar Salvador, Andrew Morton, Mahesh J Salgaonkar, Linus Torvalds
Status: Superseded by v2 (posted 2019-12-03), 1 of 10 landed. [go to v2]
Revision v1 (2 revisions archived).
Revisions (2)
- v1 current
- v2 [diff against previous]
From: Alastair D'Silva <redacted> 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 -- 2.21.0