Failed to run glxgears within amd graphic

[Yung Shen]

glxgears not able to leverage the power of adm graphic on this system.

step to reproduce:

1. Open a terminal
2. run: DRI_PRIME=1 glxgears

Expected result:
three blue, red and green gears show up and running smoothly

Actual result:
no window show up, silent failure in console

Additional note:
Did a quick debug,
(gdb) r
Starting program: /usr/bin/glxgears
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
radeonsi: Failed to create a context.
radeonsi: Failed to create a context.
X Error of failed request: BadValue (integer parameter out of range for operation)
  Major opcode of failed request: 154 (GLX)
  Minor opcode of failed request: 3 (X_GLXCreateContext)
  Value in failed request: 0x0
  Serial number of failed request: 30
  Current serial number in output stream: 32
[Inferior 1 (process 2246) exited with code 01]

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xserver-xorg-video-amdgpu 1.1.0-1
ProcVersionSignature: Ubuntu 4.4.0-28.47-generic 4.4.13
Uname: Linux 4.4.0-28-generic x86_64
.tmp.unity_support_test.0:

ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
Date: Thu Jul 14 16:12:39 2016
DistUpgraded: Fresh install
DistroCodename: xenial
DistroVariant: ubuntu
DkmsStatus:
 fwts-efi-runtime-dkms, 16.06.00, 4.4.0-28-generic, x86_64: installed
 tp-smapi, 0.41, 4.4.0-28-generic, x86_64: installed
GraphicsCard:
 Intel Corporation HD Graphics 520 [8086:1916] (rev 07) (prog-if 00 [VGA controller])
   Subsystem: Dell Skylake Integrated Graphics [1028:06df]
   Subsystem: Device [03ea:1af4]
InstallationDate: Installed on 2016-07-01 (13 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 8087:0a2b Intel Corp.
 Bus 001 Device 003: ID 0a5c:5805 Broadcom Corp.
 Bus 001 Device 002: ID 1bcf:28b8 Sunplus Innovation Technology Inc.
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Latitude E5570
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-28-generic.efi.signed root=UUID=53c2390c-fddc-4e6b-922a-b41125377e00 ro quiet splash vt.handoff=7
SourcePackage: xserver-xorg-video-amdgpu
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/20/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.3.8
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.3.8:bd01/20/2016:svnDellInc.:pnLatitudeE5570:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5570
dmi.sys.vendor: Dell Inc.
version.compiz: compiz 1:0.9.12.2+16.04.20160526-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2.2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2
xserver.bootTime: Thu Jul 14 15:23:04 2016
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:
 product id 4589
 vendor AUO
xserver.version: 2:1.18.3-1ubuntu2.2