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| author | Sachit Kadle <skadle@nvidia.com> | 2016-06-28 01:53:42 -0400 |
|---|---|---|
| committer | Terje Bergstrom <tbergstrom@nvidia.com> | 2016-06-30 18:10:45 -0400 |
| commit | 1e01a49fdc139b8cdf5164b4a6767d22ef4ad1d3 (patch) | |
| tree | cb935b3966d68f80fc4198f0e7e1b9d3a2d8ccb8 /drivers/gpu/nvgpu/gk20a/channel_gk20a.c | |
| parent | 459b27f8c15a5062c0d84436a829147931261f6d (diff) | |
gpu: nvgpu: take platform power ref at power on
Currently, host1x power refcount may decrement
to 0, while GPU is still powered on and we're still
servicing IRQs. So to prevent this situation,,
take a ref while GPU is being powered on, and
decrement it during power off. Since we are always
holding one reference while GPU is powered on,
we can remove this handling from gk20a_busy/idle().
Bug 200187507
Change-Id: Idabe88754f009f1e8de8dc821d53be3e013dc657
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1172320
(cherry picked from commit 3e27e6a5820f5c1ad05596553d75e8979b71f1bd)
Reviewed-on: http://git-master/r/1172607
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/gk20a/channel_gk20a.c')
0 files changed, 0 insertions, 0 deletions