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| author | Sami Kiminki <skiminki@nvidia.com> | 2015-05-04 11:41:23 -0400 |
|---|---|---|
| committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2015-11-18 12:45:07 -0500 |
| commit | 9d2c9072c8b9a7742db3974d6027df9d44e0953f (patch) | |
| tree | 15ed7e5a3495db6032b43381641d102837decfad /drivers/gpu/nvgpu/Kconfig | |
| parent | 503d3a0b1002685e65efb8b99a2362117ee62104 (diff) | |
gpu: nvgpu: User-space managed address space support
Implement NVGPU_GPU_IOCTL_ALLOC_AS_FLAGS_USERSPACE_MANAGED, which
enables creating userspace-managed GPU address spaces.
When an address space is marked as userspace-managed, the following
changes are in effect:
- Only fixed-address mappings are allowed.
- VA space allocation for fixed-address mappings is not required,
except to mark space as sparse.
- Maps and unmaps are always immediate. In particular, the mapping
ref increments at kickoffs and decrements at job completion are
skipped.
Bug 1614735
Bug 1623949
Bug 1660392
Change-Id: I834fe19b3f65e9b02c268952383eddee0e465759
Signed-off-by: Sami Kiminki <skiminki@nvidia.com>
Reviewed-on: http://git-master/r/738558
Reviewed-on: http://git-master/r/833253
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/Kconfig')
0 files changed, 0 insertions, 0 deletions