kib f09f11ca04 nvdimm: only enumerate present nvdimm devices ... Not all child devices of the NVDIMM root device represent DIMM devices which are present in the system. The spec says (ACPI 6.2, sec 9.20.2): For each NVDIMM present or intended to be supported by platform, platform firmware also exposes an NVDIMM device ... under the NVDIMM root device. Present NVDIMM devices are found by walking all of the NFIT table's SPA ranges, then walking the NVDIMM regions mentioned by those SPA ranges. A set of NFIT walking helper functions are introduced to avoid the need to splat the enumeration logic across several disparate callbacks. Submitted by: D Scott Phillips <d.scott.phillips@intel.com> Sponsored by: Intel Corporation MFC after: 1 week Differential revision: https://reviews.freebsd.org/D18439		2019-01-31 22:47:04 +00:00
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Makefile	nvdimm: only enumerate present nvdimm devices	2019-01-31 22:47:04 +00:00