linux/drivers/gpu
Dave Airlie 8256856568 drm/radeon/kms: set gart pages to invalid on unbind and point to dummy page
this uses a new entrypoint to invalidate gart entries instead of using 0.
Changed to rather than pointing to 0 address point empty entry to dummy
page. This might help to avoid hard lockup if for some wrong
reasons GPU try to access unmapped GART entry.

I'm not 100% sure this is going to work, we probably need to allocate
a dummy page and point all the GTT entries at it similiar to what AGP does.
but we can test this first I suppose.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-11 19:11:32 +10:00
..
drm drm/radeon/kms: set gart pages to invalid on unbind and point to dummy page 2010-02-11 19:11:32 +10:00
vga
Makefile