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| author |   Liu Gang <Gang.Liu@nxp.com> | 2016-09-08 10:31:44 +0800 |
|---|---|---|
| committer |   Shawn Guo <shawnguo@kernel.org> | 2016-09-09 14:04:21 +0800 |
| commit | e5f51a623a5d6dd24779e5136cf923611b032453 (patch) | |
| tree | 3605f752a70a46560bc36b8d0aab70c8ab105fff /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | arm64: dts: add stdout-path to chosen node for ls2080a/ls1043a boards (diff) | |
| download | linux-dev-e5f51a623a5d6dd24779e5136cf923611b032453.tar.xz linux-dev-e5f51a623a5d6dd24779e5136cf923611b032453.zip | |
arm64: dts: ls2080a: Add 'dma-coherent' for ls2080a PCI nodes
The 'dma-coherent' indicates that the hardware IP block can ensure
the coherency of the data transferred from/to the IP block. This
can avoid the software cache flush/invalid actions, and improve
the performance significantly.
The PCI IP block of ls2080a has this capability, so adding this
feature to improve the PCI performance.
Signed-off-by: Liu Gang <Gang.Liu@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions