diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2016-08-22 19:28:37 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2016-08-29 14:55:17 -0700 |
| commit | ba9c8dd3c22275e46feef429f343b85e9cf3924c (patch) | |
| tree | 0d15030ac3ac20a2dd9c700f988f575686f0f81b /drivers/nvdimm/dimm_devs.c | |
| parent | c14a868a5a14f385059f012e54291de95a538a02 (diff) | |
| download | linux-ba9c8dd3c22275e46feef429f343b85e9cf3924c.tar.gz linux-ba9c8dd3c22275e46feef429f343b85e9cf3924c.tar.bz2 linux-ba9c8dd3c22275e46feef429f343b85e9cf3924c.zip | |
acpi, nfit: add dimm device notification support
Per "ACPI 6.1 Section 9.20.3" NVDIMM devices, children of the ACPI0012
NVDIMM Root device, can receive health event notifications.
Given that these devices are precluded from registering a notification
handler via acpi_driver.acpi_device_ops (due to no _HID), we use
acpi_install_notify_handler() directly. The registered handler,
acpi_nvdimm_notify(), triggers a poll(2) event on the nmemX/nfit/flags
sysfs attribute when a health event notification is received.
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Toshi Kani <toshi.kani@hpe.com>
Reviewed-by: Vishal Verma <vishal.l.verma@intel.com>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/dimm_devs.c')
| -rw-r--r-- | drivers/nvdimm/dimm_devs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvdimm/dimm_devs.c b/drivers/nvdimm/dimm_devs.c index d9bba5edd8dc..ce75cc3f41fb 100644 --- a/drivers/nvdimm/dimm_devs.c +++ b/drivers/nvdimm/dimm_devs.c @@ -263,6 +263,12 @@ const char *nvdimm_name(struct nvdimm *nvdimm) } EXPORT_SYMBOL_GPL(nvdimm_name); +struct kobject *nvdimm_kobj(struct nvdimm *nvdimm) +{ + return &nvdimm->dev.kobj; +} +EXPORT_SYMBOL_GPL(nvdimm_kobj); + unsigned long nvdimm_cmd_mask(struct nvdimm *nvdimm) { return nvdimm->cmd_mask; |