OpenCloudOS-Kernel/drivers/gpu/drm/i830
Benjamin Herrenschmidt f77d390c97 drm: Split drm_map and drm_local_map
Once upon a time, the DRM made the distinction between the drm_map
data structure exchanged with user space and the drm_local_map used
in the kernel.

For some reasons, while the BSD port still has that "feature", the
linux part abused drm_map for kernel internal usage as the local
map only existed as a typedef of the struct drm_map.

This patch fixes it by declaring struct drm_local_map separately
(though its content is currently identical to the userspace variant),
and changing the kernel code to only use that, except when it's a
user<->kernel interface (ie. ioctl).

This allows subsequent changes to the in-kernel format

I've also replaced the use of drm_local_map_t with struct drm_local_map
in a couple of places. Mostly by accident but they are the same (the
former is a typedef of the later) and I have some remote plans and
half finished patch to completely kill the drm_local_map_t typedef
so I left those bits in.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
2009-03-13 14:23:56 +10:00
..
Makefile drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
i830_dma.c drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
i830_drv.c drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00
i830_drv.h drm: Split drm_map and drm_local_map 2009-03-13 14:23:56 +10:00
i830_irq.c drm: reorganise drm tree to be more future proof. 2008-07-14 10:45:01 +10:00