AuxXxilium/linux_dsm_epyc7002
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linux_dsm_epyc7002/drivers/powercap
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Jacob Pan 323ee64aa1 powercap/rapl: track lead cpu per package 
RAPL driver operates on MSRs that are under package/socket
scope instead of core scope. However, the current code does not
keep track of which CPUs are available on each package for MSR
access. Therefore it has to search for an active CPU on a given
package each time.

This patch optimizes the package level operations by tracking a
per package lead CPU during initialization and CPU hotplug. The
runtime search for active CPU is avoided.

Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-03-09 00:26:44 +01:00
..
intel_rapl.c powercap/rapl: track lead cpu per package 2016-03-09 00:26:44 +01:00
Kconfig powercap / RAPL: fix build dependency on iosf_mbi 2014-11-12 21:09:19 +01:00
Makefile PowerCap: Introduce Intel RAPL power capping driver 2013-10-18 13:29:52 +02:00
powercap_sys.c powercap: constify powercap_zone_ops and powercap_zone_constraint_ops structures 2016-01-02 00:29:35 +01:00