From: Alastair D'Silva <alastair@xxxxxxxxxxx>
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
--
2.24.1
