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All channels in a TSG need to share same engine context
i.e. pointer in RAMFC of all channels in a TSG must point
to same NV_RAMIN_GR_WFI_TARGET
To get this, add a pointer to gr_ctx inside TSG struct so
that TSG can maintain its own unique gr_ctx
Also, change the type of gr_ctx in a channel to pointer
variable so that if channel is part of TSG it can point
to TSG's gr_ctx otherwise it will point to its own gr_ctx
In gk20a_alloc_obj_ctx(), allocate gr_ctx as below :
1) If channel is not part of any TSG
- allocate its own gr_ctx buffer if it is already not allocated
2) If channel is part of TSG
- Check if TSG has already allocated gr_ctx (as part of TSG)
- If yes, channel's gr_ctx will point to that of TSG's
- If not, then it means channels is first to be bounded to
this TSG
- And in this case we will allocate new gr_ctx on TSG first
and then make channel's gr_ctx to point to this gr_ctx
Also, gr_ctx will be released as below ;
1) If channels is not part of TSG, then it will be released
when channels is closed
2) Otherwise, it will be released when TSG itself is closed
Bug 1470692
Change-Id: Id347217d5b462e0e972cd3d79d17795b37034a50
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/417065
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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- when a TSG channel is made runnable, add it to TSG's
runnable list
- when a TSG channel is removed from runlist, remove it
from TSG's runnable list
When we rewrite the entire runlist :
- first add all the channels which are not part of any TSG
- then find all active TSGs, add an entry in runlist for the TSG
(with TSG id and length of TSG)
- then write entries for each channel in that TSG
Bug 1470692
Change-Id: Ic55a4d5959abc72cd20b8224eb4c31d3ff411861
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/416612
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
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