RE: [PATCH 2.6.34] ehci-hcd: add option to enable 64-bit DMA support

From: Yuhong Bao
Date: Tue Feb 23 2010 - 01:28:59 EST



> Add a module parameter to allow the user to enable 64-bit DMA support in EHCI,
> which has been forcibly disabled since 2003 - see:
>
> http://www.mail-archive.com/linux-usb-devel@xxxxxxxxxxxxxxxxxxxxx/msg17230.html
>
> At that time the comment was "it'd only matter on a few big Intel boxes anyway",

That months *after* AMD released the Opteron and Athlon 64 processors with x86_64 support, with an x86_64 version of Linux.

Yuhong Bao

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