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When the nfit driver initializes it runs an ARS (Address Range Scrub) operation across every pmem range. Part of that process involves determining the ARS capabilities of a given address range. One of the capabilities that is reported is the 'Clear Uncorrectable Error Range Length Unit Size' (see: ACPI 6.2 section 9.20.7.4 Function Index 1 - Query ARS Capabilities). This property is of interest to userspace software as it indicates the boundary at which the NVDIMM may need to perform read-modify-write cycles to maintain ECC blocks. Cc: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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| .. | ||
| core.c | ||
| Kconfig | ||
| Makefile | ||
| mce.c | ||
| nfit.h | ||