We have following bug where GPU Host reports non-idle
when it should report engine idle
- if a context is preempted off the GPU, and there is
no other context to load, NV_PGRAPH_ENGINE_STATUS
will not be idle until new context is loaded
- this could cause gr_gk20a_wait_idle() to fail since
here we rely only on NV_PGRAPH_ENGINE_STATUS to
decide if engine is busy or not
To fix this, first check if context is valid or not
from NV_PFIFO_ENGINE_STATUS_CTX_STATUS
If context is invalid, return immediately
Otherwise, continue as before
Also, add accessors for invalid ctx_status
Bug 1826768
Change-Id: Id627be3f02e79f4beac59a8b5195d08eabf651f2
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1237521
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Add support for chips gm204 and gm206. Adds also support for reading
VBIOS and booting devinit and pre-os images on PMU.
Change-Id: I4824b44245611e5379ace62793cc37158048f432
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/1120467
GVS: Gerrit_Virtual_Submit
Reviewed-by: Ken Adams <kadams@nvidia.com>
