lkml.org 
[lkml]   [2018]   [Sep]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: dma_get_required_mask tidyups
Any comments?  I have a a few things piled up that base on this, so
some forward progress would be great.

On Mon, Sep 10, 2018 at 08:13:29AM +0200, Christoph Hellwig wrote:
> Hi all,
>
> the dma_get_required_mask dma API implementation has always been a little
> odd, in that we by default don't wire it up struct dma_map_ops, but
> instead hard code a default implementation. powerpc and ia64 override
> this default and either call a method or otherwise duplicate the default.
>
> This series always enabled the method and just falls back to the previous
> default implementation when it is not available, as well as fixing up
> a few bits in the default implementations. This already allows removing
> the ia64 override of the implementation, and will also allow to remove
> the powerpc one together with a few additional cleanups in the powerpc
> code, but those will be sent separately with other powerpc DMA API
> patches. Last but not least the method will allow us to return a more
> sensible value for typical iommu dma_ops eventually, but that is left
> to another series as well.
> _______________________________________________
> iommu mailing list
> iommu@lists.linux-foundation.org
> https://lists.linuxfoundation.org/mailman/listinfo/iommu
---end quoted text---

\
 
 \ /
  Last update: 2018-09-19 17:03    [W:0.044 / U:0.136 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site