While we are executing do_idle() API, it is possible that
unrailgate() gets invoked in midst of idling the GPU and
this can result in failure of do_idle()
To prevent simultaneous execution of these methods,
add a mutex railgate_lock and acquire it during
do_idle() and unrailgate() APIs
Also, keep this lock held if do_idle() is successful.
In success, lock will be released in do_unidle(),
otherwise release this lock before returning
Note that this lock should not be held in railgate() API
since we do not want it to be blocked during do_idle()
bug 1529160
Change-Id: I87114b5367eaa217376455a2699c0d21c451c889
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/434190
(cherry picked from commit 561dc8e0933ff2d72573292968b893a52f5f783a)
Reviewed-on: http://git-master/r/435131
Reviewed-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Do not abort GPU probe if secure page alloc fails.
We can just note that this allocation failed (using bool
secure_alloc_ready) and prevent further secure memory
allocation if this flag is not set.
Bug 1525465
Change-Id: Ie4eb6393951690174013d2de3db507876d7b657f
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/427730
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Make gpu power management feature configurations
as platform data. Keep existing sttaus for gk20a
and disable all power features for gm20b.
Bug 1523728
Change-Id: Ife7786863f18e21b882ac77085c7abc7c84d4cfc
Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: http://git-master/r/426369
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Supriya Sharatkumar <ssharatkumar@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Add gk20a as a sub power domain of host1x. This enforces keeping
host1x on when using gk20a.
Bug 200003112
Change-Id: I08db595bc7b819d86d33fb98af0d8fb4de369463
Signed-off-by: Arto Merilainen <amerilainen@nvidia.com>
Reviewed-on: http://git-master/r/407543
Reviewed-by: Riham Haidar <rhaidar@nvidia.com>
Tested-by: Riham Haidar <rhaidar@nvidia.com>
