Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header

consolidate direct dma mapping V3 · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 01/33] alpha: mark jensen as broken · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 02/33] hexagon: remove unused flush_write_buffers definition · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 06/33] m32r: remove the unused dma_capable helper · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 05/33] arc: remove CONFIG_ARC_PLAT_NEEDS_PHYS_TO_DMA · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 09/33] dma-mapping: take dma_pfn_offset into account in dma_max_pfn · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 09/33] dma-mapping: take dma_pfn_offset into account in dma_max_pfn · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
[PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Vladimir Murzin <hidden> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
Re: [PATCH 11/33] dma-mapping: move swiotlb arch helpers to a new header · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 12/33] dma-mapping: move dma_mark_clean to dma-direct.h · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 13/33] hexagon: use the generic dma_capable helper · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 17/33] microblaze: remove the dead !NOT_COHERENT_CACHE dma code · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 19/33] dma-mapping: warn when there is no coherent_dma_mask · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 19/33] dma-mapping: warn when there is no coherent_dma_mask · Konrad Rzeszutek Wilk <hidden> · 2018-01-12
[PATCH 21/33] dma-mapping: add an arch_dma_supported hook · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 21/33] dma-mapping: add an arch_dma_supported hook · Konrad Rzeszutek Wilk <hidden> · 2018-01-12
[PATCH 23/33] dma-direct: rename dma_noop to dma_direct · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 25/33] dma-direct: add dma address sanity checks · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 27/33] dma-direct: use node local allocations for coherent memory · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 27/33] dma-direct: use node local allocations for coherent memory · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
Re: [PATCH 27/33] dma-direct: use node local allocations for coherent memory · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 27/33] dma-direct: use node local allocations for coherent memory · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
[PATCH 29/33] dma-direct: retry allocations using GFP_DMA for small masks · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 29/33] dma-direct: retry allocations using GFP_DMA for small masks · Vladimir Murzin <hidden> · 2018-01-10
[PATCH 30/33] dma-direct: make dma_direct_{alloc,free} available to other implementations · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 33/33] h8300: use dma-direct · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 32/33] cris: use dma-direct · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 31/33] dma-direct: reject too small dma masks · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 31/33] dma-direct: reject too small dma masks · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
Re: [PATCH 31/33] dma-direct: reject too small dma masks · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 31/33] dma-direct: reject too small dma masks · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
[PATCH 28/33] dma-direct: add support for allocation from ZONE_DMA and ZONE_DMA32 · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 26/33] dma-direct: add support for CMA allocation · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 24/33] dma-direct: use phys_to_dma · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 22/33] dma-mapping: provide a generic asm/dma-mapping.h · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common code · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common code · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
Re: [PATCH 20/33] dma-mapping: clear harmful GFP_* flags in common code · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 18/33] s390: move s390_pci_dma_ops to asm/pci_dma.h · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 16/33] microblaze: remove dma_nommu_dma_supported · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 14/33] powerpc: rename dma_direct_ to dma_nommu_ · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 15/33] microblaze: rename dma_direct to dma_nommu · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 10/33] arm64: don't override dma_max_pfn · Christoph Hellwig <hch@lst.de> · 2018-01-10
Re: [PATCH 10/33] arm64: don't override dma_max_pfn · Robin Murphy <robin.murphy@arm.com> · 2018-01-10
[PATCH 08/33] s390: remove the unused dma_capable helper · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 07/33] riscv: remove the unused dma_capable helper · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 04/33] powerpc: remove unused flush_write_buffers definition · Christoph Hellwig <hch@lst.de> · 2018-01-10
[PATCH 03/33] m32r: remove unused flush_write_buffers definition · Christoph Hellwig <hch@lst.de> · 2018-01-10

From: Christoph Hellwig <hch@lst.de>
Date: 2018-01-10 15:26:22
Also in: linux-alpha, linux-arch, linux-arm-kernel, linux-iommu, linux-m68k, linux-mips, linux-s390, linux-sh, lkml, sparclinux

On Wed, Jan 10, 2018 at 02:56:01PM +0000, Robin Murphy wrote:

I took a look at these, and it seems their phys_to_dma() usage is doing the 
thing which we subsequently formalised as dma_map_resource(). I've had a 
crack at a quick patch to update the CESA driver; qcom_nandc looks slightly 
more complex in that the changes probably need to span the BAM dmaengine 
driver as well.

Sounds great, although probably something for the next merge window.

In the meantime does this patch looks good to you?

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