video: tegra: nvmap: single page allocation policy corrected

When user doesn't use default heap policy and selects
GART or carveout allocation, automatic single-page-to-sysmem
rule doesn't work. Because of broken rule many single page
allocations take extra space in carveout and create
unnecessary page mappings in GART and SMMU.

The fix adds sysmem bit to heap mask when allocation is
single page and GART or carveout is present in heap mask.

bug 730124
bug 731923

The change also does sanity check of available system memory
before adding sysmem bit for carveout allocations.

bug 777839

Reviewed-on: http://git-master/r/31383
(cherry picked from commit 502c2becc54b49d26371f9b167f0c6f82a1bc37f)

Bug 844307

Conflicts:
	drivers/video/tegra/nvmap/nvmap_handle.c

Reviewed-on: http://git-master/r/38429
(cherry picked from commit ddfc93d27830a28a1c9786fd5bce6dc35727e9ff)

Change-Id: I9b8f84a5a7daf192d1d412926f91e5de71938818
Reviewed-on: http://git-master/r/47829
Reviewed-by: Andre Sihera <asihera@nvidia.com>
Tested-by: Andre Sihera <asihera@nvidia.com>
Reviewed-by: Kirill Artamonov <kartamonov@nvidia.com>
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

0 files changed, 0 insertions, 0 deletions