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    SubjectRe: [git pull] drm request 3


    Hmm. What the hell am I supposed to do about

    (II) NOUVEAU(0): [drm] nouveau interface version: 0.0.16
    (EE) NOUVEAU(0): [drm] wrong version, expecting 0.0.15
    (EE) NOUVEAU(0): 879:

    now?

    What happened to the whole backwards compatibility thing? I wasn't even
    warned that this breaks existing user space. That makes it impossible to
    _test_ new kernels. Upgrading X and the kernel in lock-step is not a valid
    model, lots of people are just using some random distribution (F12 in my
    case), and you just broke it.

    I see the commit that does this was very aware of it:

    commit a1606a9596e54da90ad6209071b357a4c1b0fa82
    Author: Ben Skeggs <bskeggs@redhat.com>
    Date: Fri Feb 12 10:27:35 2010 +1000

    drm/nouveau: new gem pushbuf interface, bump to 0.0.16

    This commit breaks the userspace interface, and requires a new libdrm for
    nouveau to operate again.

    The multiple GEM_PUSHBUF ioctls that were present in 0.0.15 for
    compatibility purposes are now gone, and replaced with the new ioctl which
    allows for multiple push buffers to be submitted (necessary for hw index
    buffers in the nv50 3d driver) and relocations to be applied on any buffer.

    A number of other ioctls (CARD_INIT, GEM_PIN, GEM_UNPIN) that were needed
    for userspace modesetting have also been removed.

    Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
    Signed-off-by: Francisco Jerez <currojerez@riseup.net>

    but why the hell wasn't I made aware of it before-hand? Quite frankly, I
    probably wouldn't have pulled it.

    We can't just go around breaking peoples setups. This driver is, like it
    or not, used by Fedora-12 (and probably other distros). It may say
    "staging", but that doesn't change the fact that it's in production use by
    huge distributions. Flag days aren't acceptable.

    Linus


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