linux/arch/arc/mm
Christoph Hellwig a8eb92d02d arc: fix arc_dma_{map,unmap}_page
These functions should perform the same cache synchronoization as calling
arc_dma_sync_single_for_{cpu,device} in addition to doing any required
address translation or mapping [1].  Ensure they actually do that by calling
arc_dma_sync_single_for_{cpu,device} instead of passing the dir argument
along to _dma_cache_sync.

The now unused _dma_cache_sync function is removed as well.

[1] in fact various drivers rely on that by passing DMA_ATTR_SKIP_CPU_SYNC
to the map/unmap routines and doing the cache synchronization manually.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
2018-05-19 08:46:12 +02:00
..
cache.c mm: fix races between swapoff and flush dcache 2018-04-05 21:36:26 -07:00
dma.c arc: fix arc_dma_{map,unmap}_page 2018-05-19 08:46:12 +02:00
extable.c ARC: uaccess: enable INLINE_COPY_{TO,FROM}_USER ... 2017-03-30 00:07:48 -04:00
fault.c ARC: typo fix in mm/fault.c 2017-08-28 15:17:36 -07:00
highmem.c ARC: export kmap 2016-08-19 10:45:29 -07:00
init.c ARC: mm: Decouple RAM base address from kernel link address 2017-09-01 11:26:27 -07:00
ioremap.c ARCv2: Support dynamic peripheral address space in HS38 rel 3.0 cores 2016-09-30 14:48:17 -07:00
Makefile ARC: mm: HIGHMEM: kmap API implementation 2015-10-28 19:49:04 +05:30
mmap.c mm: larger stack guard gap, between vmas 2017-06-19 21:50:20 +08:00
tlb.c ARCv2: Accomodate HS48 MMUv5 by relaxing MMU ver checking 2017-11-06 11:31:21 -08:00
tlbex.S ARC: [plat-eznps] Fix TLB Errata 2017-08-28 15:17:36 -07:00