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SubjectRe: [PATCH 0/8] x86 dma_*_coherent rework patchset v2

* Joerg Roedel <joerg.roedel@amd.com> wrote:

> Hi,
>
> this patchset reworks the dma_*_coherent functions in the DMA layer
> for the x86 architecture. The patch series extends the existing DMA
> backends with missing *coherent callbacks and simplifies the generic
> function to basically only call the registered backend. This allows
> future optimizations in hardware specific IOMMU implementations. The
> code ist tested on AMD64 with AMD IOMMU, GART, SWIOTLB and NOMMU as
> well as on my old 486 box. Muli tested the Calgary specific patch.
>
> Joerg
>
> Changes since v1:
>
> - fixed wrong logic in the pci-nommu alloc_coherent code
> - moved dma_*_coherent to include/asm-x86/dma-mapping.h
>
> git diff --stat tip/master.. :
>
> arch/x86/kernel/amd_iommu.c | 2 -
> arch/x86/kernel/pci-calgary_64.c | 14 ++++
> arch/x86/kernel/pci-dma.c | 146 +-------------------------------------
> arch/x86/kernel/pci-gart_64.c | 35 +++++++++-
> arch/x86/kernel/pci-nommu.c | 62 ++++++++++++++++
> include/asm-x86/dma-mapping.h | 47 ++++++++++---
> 6 files changed, 149 insertions(+), 157 deletions(-)

applied to tip/x86/iommu - thanks Joerg!

Jesse, Fujita-san, do these changes look fine to you?

Ingo


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