Can't enable 32 bit direct rendering for radeon driver

Hi!
I have AMD R9 270X video card running under Fedora 21 x64.

I haven't any problems running x64 applications like phoronix's graphics
tests. They are works fine and fast. But running games from Steam or under
wine causes low FPS around 8-10-12, almost not depend on graphic settings
in game.

As I know Steam uses 32-bit games versions and requires 32-bit libraries.
Other games too.

Knowing that I've installed 32-bit mesa in addition to existing 64-bit
using
sudo dnf install mesa*.i686
installation was done without errors.
But it doesn't fix low FPS.

glxinfo shows all OK, but as I know it checks only 64-bit libs.

$ glxinfo | grep rendering
direct rendering: Yes
$ glxinfo | grep OpenGL
OpenGL vendor string: X.Org
OpenGL renderer string: Gallium 0.4 on AMD PITCAIRN
OpenGL core profile version string: 3.3 (Core Profile) Mesa 10.4.3
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
OpenGL version string: 3.0 Mesa 10.4.3
OpenGL shading language version string: 1.30
OpenGL context flags: (none)
OpenGL extensions:
OpenGL ES profile version string: OpenGL ES 3.0 Mesa 10.4.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.0
OpenGL ES profile extensions:

Inxi output:
 inxi -G
Graphics:  Card: Advanced Micro Devices [AMD/ATI] Curacao XT [Radeon R9
270X]
           Display Server: Fedora X.org 116.3 drivers: ati,radeon
           Resolution: [email protected], [email protected]
           GLX Renderer: Gallium 0.4 on AMD PITCAIRN GLX Version: 3.0 Mesa
10.4.3

Is there some way to make 32-bit libs usable by games?
Spend whole day to fix it :(

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