On Friday, December 1, 2017 11:23:23 PM CET Jeremy Linton wrote: > ACPI 6.2 adds a new table, which describes how processing units > are related to each other in tree like fashion. Caches are > also sprinkled throughout the tree and describe the properties > of the caches in relation to other caches and processing units. > > Add the code to parse the cache hierarchy and report the total > number of levels of cache for a given core using > acpi_find_last_cache_level() as well as fill out the individual > cores cache information with cache_setup_acpi() once the > cpu_cacheinfo structure has been populated by the arch specific > code. > > An additional patch later in the set adds the ability to report > peers in the topology using find_acpi_cpu_topology() > to report a unique ID for each processing unit at a given level > in the tree. These unique id's can then be used to match related > processing units which exist as threads, COD (clusters > on die), within a given package, etc. > > Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx> This is only going to be used by ARM64 for the time being, so I need someone from that camp to review this. Sudeep, Hanjun, Lorenzo? Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
