DRM README file
There are two main parts to this package: the DRM client library/interface
(libdrm.so) and kernel/hardware-specific device modules (such as radeon.ko).
The kernel device modules are not shipped with libdrm releases and should only
be built from the git tree by developers and bleeding-edge testers of
non-Intel hardware. The Intel kernel modules are developed in the Linux
kernel tree.
Compiling
---------
By default, libdrm and the DRM header files will install into /usr/local/.
If you want to install this DRM to replace your system copy, say:
./configure --prefix=/usr --exec-prefix=/
Then,
make install
To build the device-specific kernel modules from the git tree:
cd linux-core/
make
cp *.ko /lib/modules/VERSION/kernel/drivers/char/drm/
(where VERSION is your kernel version: uname -f)
Or,
cd bsd-core/
make
copy the kernel modules to the appropriate place
Tips & Trouble-shooting
-----------------------
1. You'll need kernel sources. If using Fedora Core 5, for example, you may
need to install RPMs such as:
kernel-smp-devel-2.6.15-1.2054_FC5.i686.rpm
kernel-devel-2.6.15-1.2054_FC5.i686.rpm
etc.
2. You may need to make a symlink from /lib/modules/VERSION/build to your
kernel sources in /usr/src/kernels/VERSION (where version is `uname -r`):
cd /lib/modules/VERSION
ln -s /usr/src/kernels/VERSION build
3. If you've build the kernel modules but they won't load because of an
error like this:
$ /sbin/modprobe drm
FATAL: Error inserting drm (/lib/modules/2.6.15-1.2054_FC5smp/kernel/drivers/char/drm/drm.ko): Invalid module format
And 'dmesg|tail' says:
drm: disagrees about version of symbol struct_module
Try recompiling your drm modules without the Module.symvers file.
That is rm the /usr/src/kernels/2.6.15-1.2054_FC5-smp-i686/Module.symvers
file (or rename it). Then do a 'make clean' before rebuilding your drm
modules.
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