[Bug 81209] [BDW/BYT Bisected semaphores] igt/gem_gtt_hog fails, gem_reset_stats and more

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=81209

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

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

--- Comment #27 from Chris Wilson <chris at chris-wilson.co.uk> ---
commit 9607ae79710afb453173b90d5bf564788a6e09b1
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Thu Nov 24 09:47:52 2016 +0000

    drm/i915/debugfs: Increment return value of gt.next_seqno

    The i915_next_seqno read value is to be the next seqno used by the
    kernel. However, in the conversion to atomics ops for gt.next_seqno, in
    commit 28176ef4cfa5 ("drm/i915: Reserve space in the global seqno during
    request allocation"), this was changed from a post-increment to a
    pre-increment. This increment was missed from the value reported by
    debugfs, so in effect it was reporting the current seqno (last
    assigned), not the next seqno.

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