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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> |
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| core.c | ||
| Kconfig | ||
| Makefile | ||
| mce.c | ||
| nfit.h | ||