diff options
| author | Alexander Antonov <alexander.antonov@linux.intel.com> | 2021-04-26 16:16:14 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-18 12:53:57 +0200 |
| commit | 10337e95e04c9bcd15d9bf5b26f194c92c13da56 (patch) | |
| tree | b2dd3b0aee6fa7200d93238913629330e676e4ff /ipc | |
| parent | c1777be3646b48f6638d8339ad270a27659adaa4 (diff) | |
perf/x86/intel/uncore: Enable I/O stacks to IIO PMON mapping on ICX
This patch enables I/O stacks to IIO PMON mapping on Icelake server.
Mapping of IDs in SAD_CONTROL_CFG notation to IDs in PMON notation for
Icelake server:
Stack Name | CBDMA/DMI | PCIe_1 | PCIe_2 | PCIe_3 | PCIe_4 | PCIe_5
SAD_CONTROL_CFG ID | 0 | 1 | 2 | 3 | 4 | 5
PMON ID | 5 | 0 | 1 | 2 | 3 | 4
I/O stacks to IIO PMON mapping is exposed through attributes
/sys/devices/uncore_iio_<pmu_idx>/dieX, where dieX is file which holds
"Segment:Root Bus" for PCIe root port which can be monitored by that
IIO PMON block. Example for 2-S Icelake server:
==> /sys/devices/uncore_iio_0/die0 <==
0000:16
==> /sys/devices/uncore_iio_0/die1 <==
0000:97
==> /sys/devices/uncore_iio_1/die0 <==
0000:30
==> /sys/devices/uncore_iio_1/die1 <==
0000:b0
==> /sys/devices/uncore_iio_3/die0 <==
0000:4a
==> /sys/devices/uncore_iio_3/die1 <==
0000:c9
==> /sys/devices/uncore_iio_4/die0 <==
0000:64
==> /sys/devices/uncore_iio_4/die1 <==
0000:e2
==> /sys/devices/uncore_iio_5/die0 <==
0000:00
==> /sys/devices/uncore_iio_5/die1 <==
0000:80
Signed-off-by: Alexander Antonov <alexander.antonov@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lkml.kernel.org/r/20210426131614.16205-4-alexander.antonov@linux.intel.com
Diffstat (limited to 'ipc')
0 files changed, 0 insertions, 0 deletions