Rework the dma buffer api a bit to make it smaller and to have less

duplicated code. Also, switch the dma_lock to a rwlock (it never should
have been a spinlock) and move it and some other accounting data into
the dma structure, not the main softc.

Finally, the funcitons in drm_dma are tiny, move them in with the rest
of the dma_bufs api in drm_bufs and remove the file.

0 files changed, 0 insertions, 0 deletions