geemili/drm - drm - Forgejo: Beyond coding. We Forge.

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Eric Anholt 5e662f90d1 [gem] Release GEM buffers from work task scheduled from IRQ. There are now 3 lists. Active is buffers currently in the ringbuffer. Flushing is not in the ringbuffer, but needs a flush before unbinding. Inactive is as before. This prevents object_free → unbind → wait_rendering → object_reference and a kernel oops about weird refcounting. This also avoids an synchronous extra flush and wait when freeing a buffer which had a write_domain set (such as a temporary rendered to and then from using the 2d engine). It will sit around on the flushing list until the appropriate flush gets emitted, or we need the GTT space for another operation.		2008-05-22 22:00:21 -07:00
bsd-core	bsd: Replace other occurrences of msleep with mtx_sleep	2007-12-02 01:45:09 -05:00
libdrm	Add DragonFly BSD support for device creation	2008-04-07 15:27:43 +03:00
linux-core	[gem] Release GEM buffers from work task scheduled from IRQ.	2008-05-22 22:00:21 -07:00
scripts	drm: update kernel generator script using v4l script	2007-11-05 12:56:55 +10:00
shared-core	[gem] Release GEM buffers from work task scheduled from IRQ.	2008-05-22 22:00:21 -07:00
tests	[GEM] Update testcases for new API.	2008-05-12 15:42:20 -07:00
.gitignore	Update mm tests for GEM rename.	2008-05-01 16:38:25 -07:00
Makefile.am	Add some trivial regression tests, one of which fails.	2007-07-19 04:59:59 -07:00
README	More detailed instructions, tips.	2007-04-25 14:52:29 -06:00
autogen.sh	update autogen from xserver tree	2005-09-12 06:21:24 +00:00
configure.ac	Add some trivial regression tests, one of which fails.	2007-07-19 04:59:59 -07:00
libdrm.pc.in	Better pkgconfig-fu: -ldrm in Libs:	2005-10-13 21:03:31 +00:00

README

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 i915.ko).

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:

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.