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| author | Joakim Zhang <qiangqing.zhang@nxp.com> | 2019-11-01 09:36:10 +0100 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2019-11-04 17:27:13 +0100 |
| commit | 76d835fcd429615b61fccbe65de4f53360a89ca7 (patch) | |
| tree | 943e5b8e1f828a70e72868f4d8c9a943a248b60e /Documentation | |
| parent | arm64: perf: Simplify the ARMv8 PMUv3 event attributes (diff) | |
| download | linux-76d835fcd429615b61fccbe65de4f53360a89ca7.tar.xz linux-76d835fcd429615b61fccbe65de4f53360a89ca7.zip | |
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: Joakim Zhang <qiangqing.zhang@nxp.com>
[will: Simplified wording]
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/admin-guide/perf/imx-ddr.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/admin-guide/perf/imx-ddr.rst b/Documentation/admin-guide/perf/imx-ddr.rst index 517a205abad6..66988b481217 100644 --- a/Documentation/admin-guide/perf/imx-ddr.rst +++ b/Documentation/admin-guide/perf/imx-ddr.rst @@ -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. |