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    SubjectRE: 2.5 AGP for 2.4.21-pre4

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    You patch deleted the definitions for the Via chipsets. After I added them
    back the agpgart driver appeared to load correctly. When I try to start X I
    get a black screen and have to shutdown and reboot to get video back. This
    is with an AIW 9700 Pro and a Gigabyte GA-7VAXP KT400 based motherboard .

    - -- Edward Killips

    - -----Original Message-----
    []On Behalf Of Brian Jackson
    Sent: Saturday, February 15, 2003 10:35 PM
    Subject: 2.5 AGP for 2.4.21-pre4

    This is a poor attempt at a backport of the 2.5.61 AGP subsystem by someone
    who doesn't know what he is doing and is in way over his head. That said,
    there any "brave" souls out there that want to try this out with an AGP3
    and 2.4.21pre4. I compile/boot tested it with an old ati card, but I don't
    have an AGP 3.0 card/MB to test it on. I got into X and ran glxgears using
    this kernel(I am using it to finish writing this email)

    agp has to be built in to the kernel (no modules)

    I did the following:
    copied the drivers/char/agp directory from 2.5.61
    copied include/asm-*/agp.h from 2.5.61
    copied include/linux/*agp.h from 2.5.61
    made some changes to drivers/char/agp/Makefile
    on line 619&635 of frontend.c changed remap_page_range to only have 4
    line 705 generic.c changed SetPageLocked -->SetPageReserved
    (not sure if this is right, but Locked doesn't exist in 2.4 and I thought
    Reserved might work -- Let me know if this should be something else)
    backend.c:241 & backend.c:263 commented references to 2.5 module stuff
    (therefore this only safe to be built into the kernel for now, any ideas
    I should use here instead?)
    added some device id's to drivers/char/agp/agp.h from
    uninclude gfp.h & linux/page-flags.h from amd-k7-agp.c

    What else I need to do:
    change to old style module init stuff

    This is nowhere near suitable for production use, but I would like some
    that actually have AGP3 cards/MB's to try this out

    - --Brian Jackson

    P.S. All criticism is welcome even flaming since I am in a decent mood right

    P.S.S. To Dave Jones -- I thought 2.5 had support for VIA chipsets & AGP3,
    I only saw config options for the 7205/7505

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