With the coming of kernel based modesetting and the memory manager stuff,
the everything in one directory approach was getting very ugly and
starting to be unmanageable.

This restructures the drm along the lines of other kernel components.

It creates a drivers/gpu/drm directory and moves the hw drivers into
subdirectores. It moves the includes into an include/drm, and
sets up the unifdef for the userspace headers we should be exporting.
Signed-off-by: NDave Airlie <airlied@redhat.com>

The data is now in kernel space, copied in/out as appropriate according to t
This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal
with those failures.  This also means that XFree86 4.2.0 support for i810 DR
is lost.
Signed-off-by: NDave Airlie <airlied@linux.ie>

This was used to make all ioctl handlers return -errno on linux and errno on
*BSD.  Instead, just return -errno in shared code, and flip sign on return f
shared code to *BSD code.
Signed-off-by: NDave Airlie <airlied@linux.ie>

This converts the code for allocating drawables to the Linux idr,

Fixes from: Michel Dänzer <michel@tungstengraphics.com>, Kristian Høgsberg <krh@redhat.com>
Signed-off-by: NDave Airlie <airlied@linux.ie>

some drivers still todo.
Signed-off-by: NDave Airlie <airlied@linux.ie>

This moves a bunch of typedefs into a !defined __KERNEL__ to keep userspace
API compatiblity, it changes all internal usages to structs/enum/unions.
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NMichel Dänzer <michel@tungstengraphics.com>
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NDave Airlie <airlied@linux.ie>

This makes it easier for userspace to know when it needs to allocate an ID.

Also free drawable information memory when it's no longer needed.
Signed-off-by: NDave Airlie <airlied@linux.ie>

Signed-off-by: NDave Airlie <airlied@linux.ie>

Actually make the existing ioctls for adding and removing drawables do
something useful, and add another ioctl for the X server to update drawable
information. The only kind of drawable information tracked so far is cliprects.

Only reallocate cliprect memory if the number of cliprects changes.
Also improve diagnostic output.

hook up drm ioctl update draw
export drm_get_drawable_info symbol
Signed-off-by: NDave Airlie <airlied@linux.ie>

I've been threatening this for a while, so no point hanging around.
This lindents the DRM code which was always really bad in tabbing department.
I've also fixed some misnamed files in comments and removed some trailing
whitespace.
Signed-off-by: NDave Airlie <airlied@linux.ie>

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!