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| author |   Vignesh R <vigneshr@ti.com> | 2016-08-17 15:22:37 +0530 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-08-17 12:24:28 +0100 |
| commit | 5720ec0a6d2605930934f3f154b048e8be3d8a40 (patch) | |
| tree | b1f3ac74bd8391060ddc2cfd599fd68e252484b3 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | Linux 4.8-rc1 (diff) | |
| download | wireguard-linux-5720ec0a6d2605930934f3f154b048e8be3d8a40.tar.xz wireguard-linux-5720ec0a6d2605930934f3f154b048e8be3d8a40.zip | |
spi: spi-ti-qspi: Add DMA support for QSPI mmap read
Use mem-to-mem DMA to read from flash when reading in mmap mode. This
gives improved read performance and reduces CPU load.
With this patch the raw-read throughput is ~16MB/s on DRA74 EVM. And CPU
load is <20%. UBIFS read throughput ~13 MB/s.
Signed-off-by: Vignesh R <vigneshr@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions