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SubjectRe: [RFC PATCH 08/12] PAT 64b: coherent mmap and sysfs bin ioctl
Eric W. Biederman wrote:
>
> 0000_00FD_FC00_0000h - 0000_00FD_FDFF_FFFFh On a hypertransport based
> system should work. There is a 32MB window for it.
>

It doesn't. The termination on MMIO and IOIO transaction is different,
and poking this memory window with an MMIO transaction will lock the
chipset hard (yes, I've tried it.)

-hpa


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