Running radeonsi on Ubuntu 13.04

[Cybjit]

There does not seem to be that much information about how to run radeonsi.
So I tried with my HD 7750 on (K)Ubuntu Raring, and documented what I did.

Since glamor is required, and it does not support the X version in Ubuntu, xorg-server has to be downgraded.
While running this process, I had to use a bit of force (dpkg --force-depends -P) to remove conflicting packages.
But in the end, apt is in a OK state.

1. Fetch, build and install debian xorg-server 1.12.4 (git://git.debian.org/git/pkg-xorg/xserver/xorg-server branch debian-unstable).

2. Blacklist xorg 1.13 in apt preferences, to prevent reinstallation.
Package: xserver-common
Pin: version 2:1.13*
Pin-Priority: -1

Package: xserver-xorg-core
Pin: version 2:1.13*
Pin-Priority: -1

Package: xserver-xorg-dev
Pin: version 2:1.13*
Pin-Priority: -1

3. Fetch mesa 9.1 (git://git.debian.org/git/pkg-xorg/lib/mesa branch ubuntu). Add --enable-gbm to debian/rules. Build and install.

4. Fetch glamor (git://anongit.freedesktop.org/git/xorg/driver/glamor). Configure and pay attention to missing dependencies manually, since there is no packaging (./configure --enable-glx-tls --prefix=/usr).
make install.

5. Fetch xf86-video-ati (git://git.debian.org/git/pkg-xorg/driver/xserver-xorg-video-ati branch ubuntu).
In debian/control remove the version dependency for xserver-xorg-dev. Also remove the dependencies on xserver-xorg-video-r128 and xserver-xorg-video-mach64 completely.
Build and install.

6. To get mouse/keyboard, I also had to rebuild xserver-xorg-input-evdev. If you use other drivers, those would also have to be recompiled.
Fetch xf86-input-evdev (git://git.debian.org/git/pkg-xorg/driver/xserver-xorg-input-evdev branch ubuntu). In debian/control remove the version dependency for xserver-xorg-dev.
Build and install.

Those where the minimal changes I was able to get it running with.
LLVM 3.2 in raring already has the r600g driver backported, and kernel 3.8 works.

I also tried latest LLVM git, Mesa git, and kernel 3.9-rc1+, but no significant differences.

KDE Desktop effects works.
Nexuiz runs at 22 fps at 1920x1200.
I thought I have Rochard running, but trying again just gives a black screen.
Torchlight immediately locks up the GPU, but the machine still responds over ssh.
Lightsmark 2008 completely freezes the machine after a few tests.

I could not test Trine, since it crashes the X server both with nouveau and radeonsi.

[Cybjit]

I forgot two steps in xf86-video-ati.

In debian/rules add
override_dh_auto_configure:
dh_auto_configure -- --enable-glamor

In debian/patches/series remove
reverse-prime.patch

[Cybjit]

And another thing I forgot, /etc/X11/xorg.conf needs to be configured:
Section "Module"

Load "dri2"
Load "glamoregl"

EndSection
Section "Device"

Identifier "ati"
Driver "ati"

Option "AccelMethod" "glamor"

EndSection

[Cybjit]

Well, that was a lot of unnecessary work: http://lists.x.org/archives/xorg-dev...ch/035721.html.
It did not even occur to me to try the stock xorg-server, as the Glamor page says it would be unreliable with 1.13+, http://www.freedesktop.org/wiki/Software/Glamor.

I guess step 1, 2 and 6 are unnecessary.

[ChrisXY]

Did you actually have luck in trying it? I tried prime with it and it looks good so far, X.Org X Server 1.14.0, xf86-video-intel with uxa, xf86-video-ati compiled with glamor

 ~ % xrandr --listproviders
Providers: number : 2
Provider 0: id: 0x70 cap: 0xb, Source Output, Sink Output, Sink Offload crtcs: 3 outputs: 8 associated providers: 0 name:Intel
Provider 1: id: 0x45 cap: 0xd, Source Output, Source Offload, Sink Offload crtcs: 6 outputs: 0 associated providers: 0 name:radeon
 ~ % xrandr --setprovideroffloadsink 1 0
 ~ % DRI_PRIME=0 glxinfo | grep OpenGL
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ivybridge Mobile
OpenGL core profile version string: 3.1 (Core Profile) Mesa 9.2-devel (git-11b8df0)
  OpenGL core profile shading language version string: 1.40
  OpenGL core profile context flags: (none)
  OpenGL core profile extensions:
  OpenGL version string: 3.0 Mesa 9.2-devel (git-11b8df0)
  OpenGL shading language version string: 1.30
  OpenGL context flags: (none)
  OpenGL extensions:

But as soon as I do "DRI_PRIME=1 glxinfo" X segfaults

[  5449.109] (EE) Backtrace:
[  5449.112] (EE) 0: /usr/bin/X (xorg_backtrace+0x36) [0x589a36]
[  5449.112] (EE) 1: /usr/bin/X (0x400000+0x18d849) [0x58d849]
[  5449.112] (EE) 2: /usr/lib/libpthread.so.0 (0x7f7193af7000+0xf1e0) [0x7f7193b061e0]
[  5449.112] (EE) 3: /usr/bin/X (0x400000+0x15a46b) [0x55a46b]
[  5449.112] (EE) 4: /usr/bin/X (DRI2Connect+0x77) [0x55c317]
[  5449.112] (EE) 5: /usr/bin/X (0x400000+0x15d4d4) [0x55d4d4]
[  5449.112] (EE) 6: /usr/bin/X (0x400000+0x37d46) [0x437d46]
[  5449.113] (EE) 7: /usr/bin/X (0x400000+0x2680a) [0x42680a]
[  5449.113] (EE) 8: /usr/lib/libc.so.6 (__libc_start_main+0xf5) [0x7f7192983a15]
[  5449.113] (EE) 9: /usr/bin/X (0x400000+0x26b4d) [0x426b4d]
[  5449.113] (EE)
[  5449.113] (EE) Segmentation fault at address 0x28

As far as I know this is because prime needs acceleration, i.e. glamor and there is no error reporting for a case where it doesn't work yet.

I even tried "LD_PRELOAD=/usr/lib/xorg/modules/libglamor.so X :1" but I only got "sh: symbol lookup error: /usr/lib/xorg/modules/libglamor.so: undefined symbol: serverClient"

[Cybjit]

Yes, I am using xserver-xorg-core 2:1.13.2-0ubuntu3 now. But I have also upgraded other packages (LLVM git, Mesa git, Linux git), since some crashing bugs are gone with them.

I have not tried using prime.