Messages in this thread | | | Date | Tue, 19 Aug 2003 11:31:20 -0700 | From | "David S. Miller" <> | Subject | Re: [PATCH] RFC: kills consistent_dma_mask |
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On 19 Aug 2003 19:33:19 +0100 Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> On Maw, 2003-08-19 at 17:55, David S. Miller wrote: > > (d) Makes implementations have to verify the mask is usable > > on every mapping attempt. > > Or once per type with a bit of thought about it. I deal with > hardware that has 2 limits on its consistent allocs and a > different one with its streaming I/O buffers. It doesn't seem > too atypical either
Are you talking on the platform or the PCI device side?
If on the platform side, the device wants to use the most capable range/mask/whatever available that also fits it's limits.
If on the PCI device side, it's also a best fit problem.
Give a specific example so I can map this out in my head. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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