[Bug 38512] [855GM] windows flicker

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38512

Chris Wilson <chris at chris-wilson.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #5 from Chris Wilson <chris at chris-wilson.co.uk> 2012-05-12 05:32:03 PDT ---
Judging from the problem description, this is the 8xx pageflipping bug. Should
be fixed in 3.5:

commit c2798b19bac2538393fc932bfbe59807a4734b3e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Sun Apr 22 21:13:57 2012 +0100

    drm/i915: i8xx interrupt handler

    gen2 hardware has some significant differences from the other interrupt
    routines that were glossed over and then forgotten about in the
    transition to KMS. Such as

    - 16bit IIR
    - PendingFlip status bit

    This patch reintroduces a handler specifically for gen2 for the purpose
    of handling pageflips correctly, simplifying code in the process.

    v2: Also fixup ring get/put irq to only access 16bit registers (Daniel)

    Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=24202
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=41793
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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