[Bug 78453] [HAWAII] Get acceleration working

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=78453

--- Comment #82 from Kai <kai at dev.carbon-project.org> ---
Created attachment 103450
  --> https://bugs.freedesktop.org/attachment.cgi?id=103450&action=edit
Xorg.0.log showing "EQ overflowing"

(In reply to comment #81)
> it's now working more or less.  grab the latest ucode here
> http://people.freedesktop.org/~agd5f/radeon_ucode/ucode.tar.gz and use my
> http://cgit.freedesktop.org/~agd5f/linux/log/?h=drm-next-3.17-wip kernel
> tree, plus this patch for ddx:
> http://people.freedesktop.org/~agd5f/0001-radeon-enable-hawaii-accel-
> conditionally.patch

I followed these instructions and everything seems to work, until KDM wants to
draw the desktop for the first time, then I see the following:
> (EE) [mi] EQ overflowing.  Additional events will be discarded until existing events are processed.
> (EE) 
>(EE) Backtrace:
> [...]
> (EE) 
> (EE) [mi] These backtraces from mieqEnqueue may point to a culprit higher up the stack.
> (EE) [mi] mieq is *NOT* the cause.  It is a victim.
> (EE) [mi] EQ overflow continuing.  100 events have been dropped.

The backtrace and "EQ overflow continuing" part repeats two times more. See the
attached Xorg.0.log for the backtraces.

The stack I used was (base is Debian Testing):
GPU: Hawaii PRO [Radeon R9 290] (ChipID = 0x67b1)
Linux: ~agdf5/linux:drm-next-3.17-wip (calls itself 3.16-rc4?)
libdrm: 2.4.54-1
LLVM: 3.5 RC1
libclc: Git:master/0ec7437d9c
Mesa: Git:master/bf1247936a
DDX: 1:7.4.0-2 + Patch
X: 2:1.16.0-1 (1.16.0)

Firmeware was put into /lib/firmware/updates/$(uname -r)/radeon (which
translates to /lib/firmware/updates/3.16.0-rc4-citadel/radeon).

Do I need to do something else? Disable tiling? DPM? Is this a remaining issue?
Or did I misunderstand, something and it is expected not to get KDE up and
running?

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