On Fri, Jun 14, 2019 at 04:44:27PM +0200, Christoph Hellwig wrote:
> 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 bug
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
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arch/openrisc/kernel/dma.c | 22
