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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-10-09 00:52:23 -0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2008-10-09 01:01:21 -0400 |
| commit | e8f462d202026d8e99f553ed5a09422321226ac9 (patch) | |
| tree | e5351b7855cf9ec60120468e36381af286277aa1 /fs/exportfs | |
| parent | 2d517cab01075610a615ebda0a1c16ba3fb081ae (diff) | |
Input: ads7846 - fix cache line sharing issue
We had a report a while back that the ads7846 driver had some issues
when used with DMA-based SPI controllers (like atmel_spi) on systems
where main memory is not DMA-coherent (most non-x86 boards). Allocate
memory potentially used for DMA separately to avoid cache line issues.
Reported-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'fs/exportfs')
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