Messages in this thread | | | Date | Sun, 17 Aug 2003 23:37:05 -0700 | From | "David S. Miller" <> | Subject | Re: [PATCH] RFC: kills consistent_dma_mask |
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On 18 Aug 2003 00:34:17 +0200 Krzysztof Halasa <khc@pm.waw.pl> wrote:
> The consistent_dma_mask (and set_... function) is presumably a hack > which is currently not used by anything (at least in the official tree). > It's unneeded (it can be easily done in a driver, should a need arrive, > without polluting the PCI subsystem) and is not supported by "DMA" API.
ia64 does in fact need consistent_dma_mask.
> It isn't even implemented on most platforms - only x86_64 and ia64 have > support for it, while on the remaining archs using it according to the > docs (with non-default value) could mean Oops or something like that.
The platforms where it isn't implemented simply support it identically to how they support the normal dma_mask.
Please read the threads in the archives that caused consistent_dma_mask to be added to the tree in the first place before you go around removing it.
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