nds32: use the generic remapping allocator for coherent DMA allocations

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Replace the code that sets up uncached PTEs with the generic vmap based
remapping code.  It also provides an atomic pool for allocations from
non-blocking context, which we not properly supported by the existing
nds32 code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Greentime Hu <greentime@andestech.com>
Reviewed-by: Greentime Hu <greentime@andestech.com>

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This commit is contained in:

Christoph Hellwig 2019-04-28 14:28:38 -05:00

parent f73c904534

commit 6309513c1b

2 changed files with 13 additions and 314 deletions

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2

arch/nds32/Kconfig

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325

arch/nds32/kernel/dma.c

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