[SNIP]
Thinking a bit more about it, when you also look at
bo->preferred_domains and compare that with the current domain you can
also figure out if a BO is swapped out or not.
Christian.
Thanks Christian for quick review/help and details. Summarizing your inputs and some queries:
1. Adding BO from all the lists will give the total amount of memory allocated by this PID
Well you need to add the "done" list again, but otherwise that's correct.
2. We can also print bo->preferred domain to check what user asked for and where it is currently.
But we can have a situation where user asked for VRAM but allowed domain added GTT and we eventually
Allocated BO in GTT.
Yes, that is correct as well.
So do we update bo->preferred_domain in that scenario??
No, bo->preferred_domains always reflect what userspace asked for.
3. What will be the scenario in which we add BO to the Reloacted/Moved/Idle?? How it is different from Evicted??
We differentiate BOs by per VM and normal. Per VM are for example page
tables and BOs which can't be shared between processes. Those you will
find on the relocated/moved/idle list.
"Normal" BOs can be shared between processes and have a separate lock.
Those you will find on the invalidated/done list.
Regards,
Christian.
Regards,
Madhav
Christian.
Regards,
Mihir
Thanks,
Mihir
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