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authorChristoph Hellwig <hch@lst.de>2021-09-13 18:44:55 +0200
committerChristoph Hellwig <hch@lst.de>2021-10-21 13:03:27 +0200
commit7d6db80b7d264d6af9dc21baafe59f93cc4607c5 (patch)
tree18e48a955f6f59e8a34c40c2fca2e1fd90ad6b54 /kernel/dma
parent837e80b3a5fc9f5f834e28e108a43ad4dd23dcb7 (diff)
sparc32: use DMA_DIRECT_REMAP
Use the generic dma remapping allocator instead of open coding it. This also avoids setting up page tables from irq context which is generally dangerous and uses the atomic pool instead. Note that this changes the kernel virtual address at which the dma coherent memory is mapped from the DVMA_VADDR region to the general vmalloc pool. I could not find any indication that this matters for the hardware. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Andreas Larsson <andreas@gaisler.com> Acked-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/dma')
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