ACPI 6.1 added an "NFIT Health Event Notification" for nvdimm devices.
When this fires, system software is expected to issue a DSM to retrieve
the latest health values. For the NFIT driver this notification
arrives as an event on the sysfs 'flags' attribute for an nfit/nvdimm
device. The 'flags' attribute reflects the "NVDIMM State Flags" of the
"5.2.25.3 NVDIMM Region Mapping Structure", and when read indicates if
the platform supports sending health events.
---
Dan Williams (3):
tools/testing/nvdimm: unit test for acpi_nfit_notify()
acpi, nfit: add dimm device notification support
tools/testing/nvdimm: unit test for acpi_nvdimm_notify()
drivers/acpi/nfit/core.c | 112 ++++++++++++++++++++++++++++++++-----
drivers/acpi/nfit/nfit.h | 7 ++
drivers/nvdimm/dimm_devs.c | 6 ++
include/linux/libnvdimm.h | 1
tools/testing/nvdimm/Kbuild | 1
tools/testing/nvdimm/test/iomap.c | 17 ++++++
tools/testing/nvdimm/test/nfit.c | 64 +++++++++++++++++++--
7 files changed, 188 insertions(+), 20 deletions(-)
