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perf/x86/intel/uncore: Cache logical pkg id in uncore driver
authorAndi Kleen <ak@linux.intel.com>
Tue, 14 Nov 2017 12:42:55 +0000 (07:42 -0500)
committerThomas Gleixner <tglx@linutronix.de>
Fri, 17 Nov 2017 15:22:30 +0000 (16:22 +0100)
commitd46b4c1ce5f0d9a13fb2318763076442669a2bdc
tree57213d3f17408eba2144e00644ad3a92852830f0
parent4ee2ec1b122599f7b10c849fa7915cebb37b7edb
perf/x86/intel/uncore: Cache logical pkg id in uncore driver

The SNB-EP uncore driver is the only user of topology_phys_to_logical_pkg
in a performance critical path.

Change it query the logical pkg ID only once at initialization time and
then cache it in box structure. This allows to change the logical package
management without affecting the performance critical path.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Kan Liang <kan.liang@intel.com>
Cc: He Chen <he.chen@linux.intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Piotr Luc <piotr.luc@intel.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Mathias Krause <minipli@googlemail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Link: https://lkml.kernel.org/r/20171114124257.22013-2-prarit@redhat.com
arch/x86/events/intel/uncore.c
arch/x86/events/intel/uncore.h
arch/x86/events/intel/uncore_snbep.c