linux-toradex.git/include/linux/dma-direct.h, branch v4.16-rc4 Linux kernel for Apalis and Colibri modules dma-direct: reject too small dma masks 2018-01-15T08:35:15+00:00 Christoph Hellwig hch@lst.de 2017-12-24T14:04:32+00:00 1a9777a8a01fb88659a3dda48080c95c34cab7d3 Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Robin Murphy <robin.murphy@arm.com> 
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
dma-direct: make dma_direct_{alloc,free} available to other implementations 2018-01-15T08:35:14+00:00 Christoph Hellwig hch@lst.de 2017-12-23T12:46:06+00:00 19dca8c0efa30e0a45e79f237060d0f307045752 So that they don't need to indirect through the operation vector. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com> 
So that they don't need to indirect through the operation vector.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
dma-mapping: move dma_mark_clean to dma-direct.h 2018-01-10T15:41:12+00:00 Christoph Hellwig hch@lst.de 2018-01-09T21:11:31+00:00 b49efd76248242169f28ffd20ada05064d01ed9f And unlike the other helpers we don't require a <asm/dma-direct.h> as this helper is a special case for ia64 only, and this keeps it as simple as possible. Signed-off-by: Christoph Hellwig <hch@lst.de> 
And unlike the other helpers we don't require a <asm/dma-direct.h> as
this helper is a special case for ia64 only, and this keeps it as
simple as possible.

Signed-off-by: Christoph Hellwig <hch@lst.de>
dma-mapping: move swiotlb arch helpers to a new header 2018-01-10T15:40:54+00:00 Christoph Hellwig hch@lst.de 2018-01-10T15:21:13+00:00 ea8c64ace86647260ec4255f483e5844d62af2df phys_to_dma, dma_to_phys and dma_capable are helpers published by architecture code for use of swiotlb and xen-swiotlb only. Drivers are not supposed to use these directly, but use the DMA API instead. Move these to a new asm/dma-direct.h helper, included by a linux/dma-direct.h wrapper that provides the default linear mapping unless the architecture wants to override it. In the MIPS case the existing dma-coherent.h is reused for now as untangling it will take a bit of work. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Robin Murphy <robin.murphy@arm.com> 
phys_to_dma, dma_to_phys and dma_capable are helpers published by
architecture code for use of swiotlb and xen-swiotlb only.  Drivers are
not supposed to use these directly, but use the DMA API instead.

Move these to a new asm/dma-direct.h helper, included by a
linux/dma-direct.h wrapper that provides the default linear mapping
unless the architecture wants to override it.

In the MIPS case the existing dma-coherent.h is reused for now as
untangling it will take a bit of work.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Robin Murphy <robin.murphy@arm.com>