nvmap: sanitize heap order policy

Fix _nvmap_do_alloc() to always stick to the requested heap mask;
to never allocate from heaps that were not specified in the mask.

Factor out the default heap order policy into its own function,
_nvmap_heap_policy().

Fix the kernel NvRmMemAlloc() implementation to honor the order
of heaps requested by calling _nvmap_do_alloc() iteratively.

Fold the various alloc functions into _nvmap_do_alloc() so that
the allocation code is easier to follow.

Temporarily disable use of IOVMM altogether, due to problems with
resume from LP0.

Change-Id: I9f720d6be67d255f7370e9daa29bfa2f20912820
Reviewed-on: http://git-master/r/1237
Reviewed-by: Antti Hatala <ahatala@nvidia.com>
Tested-by: Antti Hatala <ahatala@nvidia.com>

0 files changed, 0 insertions, 0 deletions