[REQUEST] Enable 3D acceleration for Radeon HD7000 and HD8000 cards

TobiSGD · 07-18-2013, 03:21 PM

As it seems Mesa in Slackware -current is compiled without the radeonsi Gallium3D driver, so Radeon HD7000 and HD8000 videochips don't get 3D acceleration. To change this radeonsi has to be added to the

Code:

--with-gallium-drivers=

line in the Mesa Slackbuild.
Unfortunately I have no card from those series available, so I can't test this.

Darth Vader · 07-18-2013, 05:49 PM

Quote:

Originally Posted by TobiSGD

As it seems Mesa in Slackware -current is compiled without the radeonsi Gallium3D driver, so Radeon HD7000 and HD8000 videochips don't get 3D acceleration. To change this radeonsi has to be added to the

Code:

--with-gallium-drivers=

line in the Mesa Slackbuild.
Unfortunately I have no card from those series available, so I can't test this.

For RadeonSI you need also R600 target support on LLVM-3.3 enabled with parameter

Code:

--enable-experimental-targets=R600

.

volkerdi · 07-18-2013, 05:59 PM

Quote:

Originally Posted by Darth Vader

For RadeonSI you need also R600 target support on LLVM-3.3 enabled with parameter

Code:

--enable-experimental-targets=R600

.

That's what the error message told me, too. But then it says that --enable-experimental-targets is an unrecognized option.

volkerdi · 07-18-2013, 06:32 PM

Also tried --enable-r600-llvm-compiler, but it still spits out the error about needing the option that doesn't work, and the resulting package is missing the drivers for VMware.

Looks like a no-go for now.

TobiSGD · 07-18-2013, 08:29 PM

Wow, there is more into it than I thought. Thanks for your effort.

EDIT: FWIW, I just tested if that option is recognized when using the latest git of LLVM/Clang and it worked indeed, so I think that this is something to look into after the 14.1 release.

ReaperX7 · 07-18-2013, 08:49 PM

Try these flags in the configuration and see if they help. I used some of these a while back on my custom libMesa build and they seemed to work:

Code:

--enable-r600-llvm-compiler \
--enable-egl1 \
--enable-egl2 \
--enable-openvg \
--enable-xorg \
--enable-xa \
--enable-opencl \
--with-gallium-drivers="nouveau,r300,r600,radeonsi,svga" \
--with-dri-drivers="i915,i965,intel,radeon,r200,swrast"

BTW: you may want to check -current against the new 9.1.5 sources of libmesa: ftp://ftp.freedesktop.org/pub/mesa/9...-9.1.5.tar.bz2

And OpenCL might pester for these also:

http://slackbuilds.org/repository/14...pencl-headers/

volkerdi · 07-18-2013, 11:54 PM

Quote:

Originally Posted by ReaperX7

BTW: you may want to check -current against the new 9.1.5 sources of libmesa: ftp://ftp.freedesktop.org/pub/mesa/9...-9.1.5.tar.bz2

I'm grabbing that now. But if radeonsi requires features that are labeled experimental, it's not time for that yet.

tuxbg · 07-19-2013, 12:07 AM

Also for OpenGL 3.0/3.1 Pat you need this

Code:

--enable-texture-float

ReaperX7 · 07-19-2013, 12:34 AM

Quote:

Originally Posted by volkerdi

I'm grabbing that now. But if radeonsi requires features that are labeled experimental, it's not time for that yet.

Might be good to have a package with it for /Testing just in case anyone wants to give it a go, or has a card that can be tested with those chipsets, rather than excluding it.

Also, is the latest libdrm 2.4.26 incorporated?

http://dri.freedesktop.org/libdrm/libdrm-2.4.46.tar.bz2

BroX · 07-19-2013, 08:19 AM

I'd be happy to test packages to enable radeonsi with a HD7750 card.

BroX · 07-19-2013, 02:37 PM

Quote:

Originally Posted by volkerdi

That's what the error message told me, too. But then it says that --enable-experimental-targets is an unrecognized option.

I had no problems rebuilding llvm-3.3 with --enable-experimental-targets=R600. And after applying a patch from LFS I rebuilt mesa-9.1.4 including radeonsi.

Details in this post.

To cut to the chase: so far, radeonsi gets loaded, but X crashes with a segfault

ReaperX7 · 07-19-2013, 03:36 PM

Maybe X needs to be rebuilt also...

Darth Vader · 07-19-2013, 03:58 PM

Quote:

Originally Posted by volkerdi

That's what the error message told me, too. But then it says that --enable-experimental-targets is an unrecognized option.

LLVM-3.3 is (re)compiled here just fine, on the latest current, using the following ./configure arguments.

Code:

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
./configure \
  --prefix=/usr \
  --libdir=/usr/lib$LIBDIRSUFFIX \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --mandir=/usr/man \
  --enable-optimized \
  --disable-assertions \
  --enable-pic \
  --with-clang-resource-dir="../lib${LIBDIRSUFFIX}/clang/${VERSION}" \
  --enable-experimental-targets=R600 \
  --build=$ARCH-slackware-linux \
  --host=$ARCH-slackware-linux || exit 1

Well, in other words, the latest LLVM(-3.3) have an new (experimental) target, written right by AMD, called R600. That support is used by (the latest) MESA for enabling the bytecode support required to support RadeonSI.

volkerdi · 07-19-2013, 04:07 PM

Quote:

Originally Posted by Darth Vader

LLVM-3.3 is (re)compiled here just fine, on the latest current, using the following ./configure arguments.

Yeah, I recompiled it correctly here last night after someone pointed out in an email that the option was to be applied to the llvm configure, not the mesa one. D'oh!

I'm still not sure what we'll do about this yet, as I still have some concerns that these changes could make X less stable on these cards. It might be better to wait until these features aren't marked as experimental. There's always the fglrx driver in the meantime.

Thanks for all the hints about this, though.

ReaperX7 · 07-19-2013, 04:25 PM

Maybe we need to add a directory named /experimental sometime for stuff like this?