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authorJeffrey Hugo <jhugo@codeaurora.org>2018-10-04 09:20:06 -0600
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2018-10-04 23:02:17 +0200
commit59bbff3775c0951300f7b41345a54b999438f8d0 (patch)
treed25c1be9819e008e002f0b7b0202243e4c19262e /fs/proc/task_nommu.c
parentca388e436f588a7fa88fcdefcb0b2c55aff6836c (diff)
ACPI/PPTT: Handle architecturally unknown cache types
The type of a cache might not be specified by architectural mechanisms (ie system registers), but its type might be specified in the PPTT. In this case, we should populate the type of the cache, rather than leave it undefined. This fixes the issue where the cacheinfo driver will not populate sysfs for such caches, resulting in the information missing from utilities like lstopo and lscpu, thus degrading the user experience. Fixes: 2bd00bcd73e5 (ACPI/PPTT: Add Processor Properties Topology Table parsing) Reported-by: Vijaya Kumar K <vkilari@codeaurora.org> Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Sudeep Holla <sudeep.holla@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'fs/proc/task_nommu.c')
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