On Mon, Dec 11, 2023 at 4:50 AM Christian König <ckoenig.leichtzumerken@xxxxxxxxx> wrote: > > Am 08.12.23 um 20:53 schrieb Alex Deucher: > > [SNIP] > > You also need a functionality which resets all cleared blocks to > uncleared after suspend/resume. > > No idea how to do this, maybe Alex knows of hand. > > Since the buffers are cleared on creation, is there actually anything to do? > > > Well exactly that's the problem, the buffers are no longer always cleared on creation with this patch. > > Instead we clear on free, track which areas are cleared and clear only the ones which aren't cleared yet on creation. > > So some cases need special handling. E.g. when the engine is not initialized yet or suspend/resume. > > In theory after a suspend/resume cycle the VRAM is cleared to zeros, but in practice that's not always true. The vbios asic_init table will clear vram on boards with RAS, but not on others. Alex
