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(parent: 80e61fc) | patch
openrisc: remove the partial DMA_ATTR_NON_CONSISTENT support
authorChristoph Hellwig <hch@lst.de>
Mon, 3 Jun 2019 10:54:13 +0000 (12:54 +0200)
committerChristoph Hellwig <hch@lst.de>
Tue, 25 Jun 2019 06:14:39 +0000 (08:14 +0200)
commit961729bfc73e698be19305834805592227bd09e3
tree21d68caded55e364bcea7e17bf349ec2566320f9tree | snapshot
parent80e61fcd23946cb222f780a49ab2eeb7ef1d3749commit | diff
openrisc: remove the partial DMA_ATTR_NON_CONSISTENT support

The openrisc DMA code supports DMA_ATTR_NON_CONSISTENT allocations, but
does not provide a cache_sync operation.  This means any user of it
will never be able to actually transfer cache ownership and thus cause
coherency bugs.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Stafford Horne <shorne@gmail.com>
arch/openrisc/kernel/dma.c diff | blob | history
Domain: System / Kernel;