Commit 76d835fc authored by Joakim Zhang's avatar Joakim Zhang Committed by Will Deacon
Browse files

docs/perf: Add explanation for DDR_CAP_AXI_ID_FILTER_ENHANCED quirk 



Add explanation for DDR_CAP_AXI_ID_FILTER_ENHANCED quirk.

Signed-off-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
[will: Simplified wording]
Signed-off-by: default avatarWill Deacon <will@kernel.org>
parent 9ef8567c

Documentation/admin-guide/perf/imx-ddr.rst

+5 −0
Original line number Diff line number Diff line
@@ -50,3 +50,8 @@ in the driver. 
  axi_id to monitor a specific id, rather than having to specify axi_mask.

  e.g.::

        perf stat -a -e imx8_ddr0/axid-read,axi_id=0x12/ cmd, which will monitor ARID=0x12



* With DDR_CAP_AXI_ID_FILTER_ENHANCED quirk.

  This is an extension to the DDR_CAP_AXI_ID_FILTER quirk which permits

  counting the number of bytes (as opposed to the number of bursts) from DDR

  read and write transactions concurrently with another set of data counters.

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