| commit | 75efdee11b5da3acbbeb43a9b93a9c4fe6d5bec8 | [log] [tgz] |
|---|---|---|
| author | Alex Deucher <alexander.deucher@amd.com> | Mon Mar 04 12:47:46 2013 -0500 |
| committer | Alex Deucher <alexander.deucher@amd.com> | Thu Jun 27 10:49:07 2013 -0400 |
| tree | dfdb40d6b02d6a613a5d20ae8a343ac0d024dfcc | |
| parent | f93bdefe6269067afc85688d45c646cde350e0d8 [diff] |
drm/radeon: implement simple doorbell page allocator The doorbell aperture is a PCI BAR whose pages can be mapped to compute resources for things like wptrs for userspace queues. This patch maps the BAR and sets up a simple allocator to allocate pages from the BAR. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>