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| author | Andi Kleen <ak@linux.intel.com> | 2017-11-14 07:42:55 -0500 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-11-17 16:22:30 +0100 |
| commit | d46b4c1ce5f0d9a13fb2318763076442669a2bdc (patch) | |
| tree | 57213d3f17408eba2144e00644ad3a92852830f0 /arch/x86/events/intel/uncore.h | |
| parent | 4ee2ec1b122599f7b10c849fa7915cebb37b7edb (diff) | |
| download | linux-stable-d46b4c1ce5f0d9a13fb2318763076442669a2bdc.tar.gz linux-stable-d46b4c1ce5f0d9a13fb2318763076442669a2bdc.tar.bz2 linux-stable-d46b4c1ce5f0d9a13fb2318763076442669a2bdc.zip | |
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
Diffstat (limited to 'arch/x86/events/intel/uncore.h')
| -rw-r--r-- | arch/x86/events/intel/uncore.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index 4364191e7c6b..414dc7e7c950 100644 --- a/arch/x86/events/intel/uncore.h +++ b/arch/x86/events/intel/uncore.h @@ -100,7 +100,7 @@ struct intel_uncore_extra_reg { struct intel_uncore_box { int pci_phys_id; - int pkgid; + int pkgid; /* Logical package ID */ int n_active; /* number of active events */ int n_events; int cpu; /* cpu to collect events */ |