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| author | Vignesh Raghavendra <vigneshr@ti.com> | 2023-03-23 17:31:07 +0530 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-03-31 17:49:36 +0530 |
| commit | f806bea3093cb3568e01b4375d5e1d7c8c47c1d4 (patch) | |
| tree | a11fe3e3351ab450f429829e33c0205f2b0c146b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 86de3bbfe45e5a7e64d4f24a1c034725072420d8 (diff) | |
dmaengine: ti: k3-udma: Workaround errata i2234
Per [1], UDMA TR15 transactions may hang if ICNT0 is less than 64B
Work around is to set EOL flag is to 1 for ICNT0.
Since, there is no performance penalty / side effects of setting EOL
flag event ICNTO > 64B, just set the flag for all UDMAP TR15
descriptors.
[1] https://www.ti.com/lit/er/sprz455a/sprz455a.pdf
Errata doc for J721E DRA829/TDA4VM Processors Silicon Revision 1.1/1.0
(Rev. A)
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
[j-choudhary@ti.com: minor cleanups]
Signed-off-by: Jayesh Choudhary <j-choudhary@ti.com>
Link: https://lore.kernel.org/r/20230323120107.27638-1-j-choudhary@ti.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
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