agp: Add generic support for graphics dma remapping

Browse source

New driver hooks for support graphics memory dma remapping
are introduced in this patch. It makes generic code can
tell if current device needs dma remapping, then call driver
provided interfaces for mapping and unmapping. Change has
also been made to handle scratch_page in remapping case.

Signed-off-by: Zhenyu Wang <zhenyu.z.wang@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

...

This commit is contained in:

Zhenyu Wang 2009-07-23 17:25:49 +01:00 • committed by David Woodhouse

parent 2a4ceb6d3e

commit ff663cf870

4 changed files with 40 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

6

drivers/char/agp/agp.h

View file

20

drivers/char/agp/backend.c

View file

9

drivers/char/agp/generic.c

View file

6

include/linux/agp_backend.h

View file