• Max Filippov's avatar
    xtensa: support DMA to high memory · c7ca9fe1
    Max Filippov authored
    - 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: default avatarMax Filippov <jcmvbkbc@gmail.com>
    c7ca9fe1
pci-dma.c 6.14 KB