gma500: Make GTT pages uncached

Browse source

Clean up the GTT code a bit, make the pages uncached and go via the proper
interfaces. This avoids any aliasing problems.

On the CPU side we need to access the pages via their true addresses not via
the GTT. This is fine for GEM created fb objects for X. For the kernel fb
when not in stolen RAM we are going to need to use vm_map_ram() and hope we
have enough virtual address space to steal.

Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

...

This commit is contained in:

Alan Cox 2011-06-16 17:06:31 +01:00 • committed by Greg Kroah-Hartman

parent 7b847f6ded

commit fb7ff7f66e

3 changed files with 29 additions and 33 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

9

drivers/staging/gma500/psb_fb.c

View file

26

drivers/staging/gma500/psb_gem.c

View file

27

drivers/staging/gma500/psb_gtt.c

View file