[Bug 90065] [BSW Regression]igt/gem_userptr_blits/minor-normal-sync fails

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90065

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> ---
commit fa8848f27895bd19e16aed77868f464be24034e6
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 14 14:17:11 2015 +0100

    drm/i915: Report context GTT size

    Since the beginning we have conflated the size of the global GTT with
    that of the per-process context sizes. In recent times (gen8+), those
    are no longer the same where the global GTT is limited to 2/4GiB but the
    per-process GTT may be anything up to 256TiB. Userspace knows nothing of
    this discrepancy and outside of one or two hacks, uses the getaperture
    ioctl to determine the maximum size it can use. Let's leave that as
    reporting the global GTT and use the context reporting method to
    describe the per-process value (which naturally fallsback to reporting
    the aliasing or global on older platforms, so userspace can always use
    this method where available).

    Testcase: igt/gem_userptr_blits/minor-normal-sync
    Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90065
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
    Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
    Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

+

commit a22719358d8fc7d4261829847e1ace042575a723
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Wed Oct 14 14:17:55 2015 +0100

    lib: Fix querying context GTT size

    We need a new ioctl to find the correct GTT size to use when submitting
    execbuffers (as opposed to wishing to know the global GTT size).

    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

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