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| author | Alex Waterman <alexw@nvidia.com> | 2018-01-16 19:44:18 -0500 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-01-19 20:29:13 -0500 |
| commit | b8dbc853d79a086c30b4be5e15d25cc305320e8b (patch) | |
| tree | 626089c643c490116d9a515f224b6e683cc386d0 /drivers/gpu/nvgpu/common/linux/module.c | |
| parent | 137006fe783a0829a26f4f179f19f3d73fc050c4 (diff) | |
gpu: nvgpu: Use real PDE size to determine pte_blk_order
In the buddy allocator use the actual size of the PDE to determine
the pte_blk_order field which is used to determine what page size a
buddy has (or doesn't). Previously this was just set as the large
page size times 1024 which would over allocate PDE ranges for Pascal+
chips. This caused userspace, which was using the real PDE size, to
sometime allocate small and large pages in what the buddy allocator
mistakenly thought was one PDE.
Bug 200105199
Change-Id: I7ab7db7962015fc268bad61b558a18704133e1cb
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1639731
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/common/linux/module.c')
0 files changed, 0 insertions, 0 deletions