Max Filippov c7ca9fe17b xtensa: support DMA to high memory ...

- don't bugcheck if high memory page is passed to xtensa_map_page;
- turn empty dcache flush macros into functions so that they could be
  passed as function parameters;
- use kmap_atomic to map high memory pages for cache invalidation/
  flushing performed by xtensa_sync_single_for_{cpu,device}.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

2015-11-09 01:25:37 +03:00

5.8 KiB

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