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    SubjectRe: [PATCH v5 09/44] drm: handle HAS_IOPORT dependencies
    On Mon, May 22, 2023, at 14:38, Thomas Zimmermann wrote:
    > Am 22.05.23 um 12:50 schrieb Niklas Schnelle:

    >> There is also a direct and hard coded use in cirrus.c which according to
    >> the comment is only necessary during resume. Let's just skip this as
    >> for example s390 which doesn't have I/O port support also doesen't
    >> support suspend/resume.
    >
    > I think we should consider making cirrus depend on HAS_IOPORT. The
    > driver is only for qemu's cirrus emulation, which IIRC can only be
    > enabled for i586. And it has all been deprecated long ago.

    I tried it out in arm64 debvm, and both the kernel and Xorg drivers
    are detected just fine according to the log. I only get a black
    screen, which could be the result of a missing VGA BIOS or the missing
    unblank Port I/O in the driver (I doubt the VGA ports are hooked up
    on arm64 qemu), but there is a good chance that it's currently
    working for someone else.

    Arnd

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