diff options
| author | Alex Waterman <alexw@nvidia.com> | 2017-06-28 20:30:46 -0400 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-07-12 10:44:47 -0400 |
| commit | 90d388ebf8d2f9f9d08f6a5c0f638aa8339c1f24 (patch) | |
| tree | 7966a3829615e25ebeddad3202a2e6f78b9beba6 /drivers/gpu/nvgpu/common/bus.c | |
| parent | 3bc7e4aaddd2487ab65f66caa80cc0795b522fb6 (diff) | |
gpu: nvgpu: Add get/set PTE routines
Add new routines for accessing and modifying PTEs in situ. They are:
__nvgpu_pte_words()
__nvgpu_get_pte()
__nvgpu_set_pte()
All the details of modifying a page table entry are handled within.
Note, however, that these routines will not build page tables. If a PTE
does not exist then said PTE will not be created. Instead -EINVAL will
be returned. But, keep in mind, a PTE marked as invalid still exists.
So this API can be used to mark an invalid PTE valid.
JIRA NVGPU-30
Change-Id: Ic8615f209a0c4eb6fa64af9abadcfb3b2c11ee73
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1510447
Reviewed-by: Automatic_Commit_Validation_User
Tested-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/common/bus.c')
0 files changed, 0 insertions, 0 deletions