Re: [PATCH] x86_64: reserve dma32 early for gart

[Yinghai Lu]

On Fri, Mar 7, 2008 at 3:20 PM, Andi Kleen <ak@xxxxxxx> wrote:
> On Saturday 08 March 2008 00:02:50 Yinghai Lu wrote:
>  >
>  >
>
>
>
>  >solution will be:
>  >1. make memmap allocation get memory above 4G...
>  >2. reserve some dma32 range early before we try to set up memmap for all.
>  >and release that before pci_iommu_alloc, so gart or swiotlb could get some
>  >range under 4g limit for sure.
>
>  Funny we had (1) before vmemmap for some time, but it looks like
>  that regressed with vmemmap Anyways I think (1) alone should be enough, is (2)
>  really needed?

even vmemmap is disabled, still need (2).

(1) is not there yet.

YH
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