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authorKan Liang <kan.liang@linux.intel.com>2019-05-07 16:16:31 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2019-05-15 22:36:47 +0300
commitbf6d18cffa5f26bd5dc71485c2a2ad0c42a0ce60 (patch)
treebbd848cdd18adb844244db7e03f6f87ac7787685 /tools/perf/pmu-events/jevents.c
parentb62d18aba1109506c1926ab7b564c4ac3bd48786 (diff)
downloadlinux-bf6d18cffa5f26bd5dc71485c2a2ad0c42a0ce60.tar.xz
perf vendor events intel: Add uncore_upi JSON support
Perf cannot parse UPI (Intel's "Ultra Path Interconnect" [1]) events. # perf stat -e UPI_DATA_BANDWIDTH_TX event syntax error: 'UPI_DATA_BANDWIDTH_TX' \___ parser error Run 'perf list' for a list of valid events The JSON lists call the box UPI LL, while perf calls it upi. Add conversion support to JSON to convert the unit properly. Committer notes: [1] https://en.wikipedia.org/wiki/Intel_Ultra_Path_Interconnect "The Intel Ultra Path Interconnect (UPI) is a point-to-point processor interconnect developed by Intel which replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP platforms starting in 2017. UPI is a low-latency coherent interconnect for scalable multiprocessor systems with a shared address space. It uses a directory-based home snoop coherency protocol with a transfer speed of up to 10.4 GT/s. Supporting processors typically have two or three UPI links." Signed-off-by: Kan Liang <kan.liang@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Link: http://lkml.kernel.org/r/1557234991-130456-1-git-send-email-kan.liang@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/pmu-events/jevents.c')
-rw-r--r--tools/perf/pmu-events/jevents.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/perf/pmu-events/jevents.c b/tools/perf/pmu-events/jevents.c
index 68c92bb599ee..daaea5003d4a 100644
--- a/tools/perf/pmu-events/jevents.c
+++ b/tools/perf/pmu-events/jevents.c
@@ -235,6 +235,7 @@ static struct map {
{ "iMPH-U", "uncore_arb" },
{ "CPU-M-CF", "cpum_cf" },
{ "CPU-M-SF", "cpum_sf" },
+ { "UPI LL", "uncore_upi" },
{}
};