Re: [PATCH] x86: {reverve,free}_memtype() take a physical address

[Rene Herman]

On 22-08-08 00:16, Pallipadi, Venkatesh wrote:

> Yes. Noticed that too and sent a patch here for x86/tip.
>
> http://www.ussg.iu.edu/hypermail/linux/kernel/0808.2/2270.html
>
> It is not very critical as it sounds as only set_memory_uc sets PAT
> bits for RAM pages. Most other users (devmem mmap, ioramep, pci)
> set PAT bits on the reserved memory. And there will not be conflicts
> across RAM and reserveed regions. Regardless, this was a stupid
> bug that we had missed earlier.

And unfortunately I don't think the above fully fixes it for AGP. __pa() 
gets the real physical address and the memtypes should be on the GART 
remapped physical addresses it seems.

Rene.
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