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'mappable' isn't really used at all, nor is it necessary anymore as the
bo code is capable of moving buffers to mappable vram as required.
'no_vm' isn't necessary anymore either, any places that don't want to be
mapped into a GPU address space should allocate the VRAM directly instead.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Also imports a couple of helper functions that'll be used to implement
page flipping in the following commits..
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This should prevent a number of races from occuring, the most obvious of
which will be exposed when we start making use of the "display sync" evo
channel for page flipping. The DS channel will reject any command stream
that doesn't completely agree with the current "master" state.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Accidently busted a while back. We'll be creating objects that aren't
necessary here, but, they're never used so no harm..
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Not an issue right now, we're forced to 64k size/alignment by the BO
allocator anyway. This won't be the case soon.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
