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| author |   Vipin Kumar <vipin.kumar@st.com> | 2012-03-14 11:47:18 +0530 |
|---|---|---|
| committer |   David Woodhouse <David.Woodhouse@intel.com> | 2012-03-27 01:00:24 +0100 |
| commit | 4774fb0a48aacfec206e6d54ecf58706f6a5320a (patch) | |
| tree | 073282f1f2514cb524019042fc081c62f5daec8c /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | mtd: nand/fsmc: Access the NAND device word by word whenever possible (diff) | |
| download | wireguard-linux-4774fb0a48aacfec206e6d54ecf58706f6a5320a.tar.xz wireguard-linux-4774fb0a48aacfec206e6d54ecf58706f6a5320a.zip | |
mtd: nand/fsmc: Add DMA support
The fsmc_nand driver uses cpu to read/write onto the device. This is inefficient
because of two reasons
- the cpu gets locked on AHB bus while reading from NAND
- the cpu is unnecessarily used when dma can do the job
This patch adds the support for accessing the device through DMA
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions