[lkml]   [2006]   [Mar]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: PCI-DMA: Out of IOMMU space on x86-64 (Athlon64x2), with solution
    On Friday 03 March 2006 09:16, Chris Wedgwood wrote:
    > On Thu, Mar 02, 2006 at 02:03:48AM +0100, Andi Kleen wrote:
    > > Nvidia hardware SATA cannot directly DMA to > 4GB, so it has to go
    > > through the IOMMU.
    > do you know if that is an actual hardware limitation or simply a
    > something we don't know how to do for lack of docs?

    I assume that's a hardware limitation. I guess they'll move to AHCI
    at some point though - that should fix that.

    > > And in that kernel the Nforce ethernet driver also didn't do >4GB
    > > access, although the ethernet HW is theoretically capable.
    > hrm, again, with a lack of docs is that likely to occur anytime soon?

    That has been already fixed, just not in the kernel version Michael
    is using.

    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2006-03-03 12:04    [W:0.021 / U:0.188 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site