NetBSD

History

bjs 8151294949 - for DRM_NETBSD_HANDLE2ADDR/ADDR2HANDLE, do what uvm does to recover the virtual address from a uoffset, e.g. uoffset + vm_map_min(kernel_map). - Eliminate the bus_space_read/write-based DRM_READ/WRITE macros. The memory we're reading/writing from is not always allocated with bus_space, and so this will not do. Instead, since all of our bus_space maps are linear, volatile pointer dereferences will do just fine. - Unify members of struct drm_dma_handle amongst freebsd and netbsd: the 'addr' member was superfluous; also, set dmah->tag from dev->pa.pa_dmat and use that. - we don't need BUS_DMA_ALLOCNOW, as bus_dmamap_load is called immediately following bus_dmamap_create(), so there's no need to avoid deferring allocation to load time. - Add check for nsegs != 1 in drm_pci_alloc(). - We don't need the DRM_PCI_DMAADDR macro right now--it was only used once.		2008-07-25 06:54:33 +00:00
..
bsd-core	- for DRM_NETBSD_HANDLE2ADDR/ADDR2HANDLE, do what uvm does to recover	2008-07-25 06:54:33 +00:00
libdrm
scripts
shared-core	merge git-change-2580a065d81be645a14af1e91b8441f7e72fcbe4.	2008-07-25 05:30:08 +00:00
tests
autogen.sh
configure.ac
libdrm.pc.in
Makefile.am
README

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.