Vaibhav Jain <vaib...@linux.ibm.com> writes:
> Implement support for fetching nvdimm health information via
> H_SCM_HEALTH hcall as documented in Ref[1]. The hcall returns a pair
> of 64-bit bitmap, bitwise-and of which is then stored in
> 'struct papr_scm_priv' and subsequently partially exposed to
> user-space via newly introduced dimm specific attribute
> 'papr/flags'. Since the hcall is costly, the health information is
> cached and only re-queried, 60s after the previous successful hcall.
>
> The patch also adds a documentation text describing flags reported by
> the the new sysfs attribute 'papr/flags' is also introduced at
> Documentation/ABI/testing/sysfs-bus-papr-scm.
>
> [1] commit 58b278f568f0 ("powerpc: Provide initial documentation for
> PAPR hcalls")
>
Reviewed-by: Aneesh Kumar K.V <aneesh.ku...@linux.ibm.com>
> Cc: "Aneesh Kumar K . V" <aneesh.ku...@linux.ibm.com>
> Cc: Dan Williams <dan.j.willi...@intel.com>
> Cc: Michael Ellerman <m...@ellerman.id.au>
> Cc: Ira Weiny <ira.we...@intel.com>
> Signed-off-by: Vaibhav Jain <vaib...@linux.ibm.com>
