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| author | Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com> | 2016-10-07 16:01:16 +0530 |
|---|---|---|
| committer | Darren Hart <dvhart@linux.intel.com> | 2016-12-13 09:28:58 -0800 |
| commit | 9c2ee19987ef02fe3dbe507d81ff5c7dd5bb4f21 (patch) | |
| tree | d88dd767962d6329e6357de62490ce094f901298 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | fe748227570107abaa4767c39be3eff934bdaf5c (diff) | |
platform/x86: intel_pmc_core: Add LTR IGNORE debug feature
SPT LTR_IGN register provides a means to make the PMC ignore the LTR values
reported by the individual PCH devices.
echo <IP Offset> > /sys/kernel/debug/pmc_core/ltr_ignore.
When a particular IP Offset bit is set the PMC will ignore the LTR value
reported by the corresponding IP when the PMC performs the latency
coalescing.
IP Offset IP Name
0 SPA
1 SPB
2 SATA
3 GBE
4 XHCI
5 RSVD
6 ME
7 EVA
8 SPC
9 Azalia/ADSP
10 RSVD
11 LPSS
12 SPD
13 SPE
14 Camera
15 ESPI
16 SCC
17 ISH
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
[dvhart: pmc_core_ltr_ignore_write local declaration order cleanup]
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions