Re: [PATCH 2/2] MIPS: remove support for DMA_ATTR_WRITE_COMBINE
From: Sergei Shtylyov <hidden>
Date: 2019-08-05 08:06:35
Also in:
linux-iommu, linux-mips, linuxppc-dev, lkml
Hello! On 05.08.2019 11:01, Christoph Hellwig wrote:
Mips uses the KSEG1 kernel memory segment do map dma coherent
MIPS. s/do/to/?
allocations for n
on-coherent devices as uncachable, and does not have
Uncacheable?
any kind of special support for DMA_ATTR_WRITE_COMBINE in the allocation
path. Thus supporting DMA_ATTR_WRITE_COMBINE in dma_mmap_attrs will
lead to multiple mappings with different caching attributes.
Fixes: 8c172467be36 ("MIPS: Add implementation of dma_map_ops.mmap()")
Signed-off-by: Christoph Hellwig <hch@lst.de>[...] MBR, Sergei _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel