Re: [Xen-devel] [RFC 0/2] XEN SWIOTLB for ARM dma operations extension

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Tue, Jan 10, 2017 at 06:44:25PM +0200, Andrii Anisov wrote:
> From: Andrii Anisov <andrii_anisov@xxxxxxxx>
> 
> Some drivers need additional dma ops to be provided by xen swiotlb. Because
> common operations implementation came from x86 world and does not suite ARM
> needs.
> 
> dma_mmap patch is a port of an antique and lost patch discussed here:
> http://marc.info/?l=xen-devel&m=139695901430667&w=4

It would be good to have that as part of this patchset, otherwise
this is kind of non-compiling type patch.

But more importantly, I think you need to also to take into account
Stefano's comments:

http://marc.info/?l=xen-devel&m=139991966525561&w=4

> 
> Andrii Anisov (1):
>   swiotlb-xen: implement xen_swiotlb_get_sgtable callback
> 
> Stefano Stabellini (1):
>   swiotlb-xen: implement xen_swiotlb_dma_mmap callback
> 
>  arch/arm/xen/mm.c | 25 +++++++++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 
> -- 
> 2.7.4
> 
> 
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