I915 DG1/LMEM RFC Section¶
Upstream plan¶
For upstream the overall plan for landing all the DG1 stuff and turning it for real, with all the uAPI bits is:
Merge basic HW enabling of DG1(still without pciid)
- Merge the uAPI bits behind special CONFIG_BROKEN(or so) flag
At this point we can still make changes, but importantly this lets us start running IGTs which can utilize local-memory in CI
- Convert over to TTM, make sure it all keeps working. Some of the work items:
TTM shrinker for discrete
dma_resv_lockitem for full dma_resv_lock, i.e not just trylock
Use TTM CPU pagefault handler
Route shmem backend over to TTM SYSTEM for discrete
TTM purgeable object support
Move i915 buddy allocator over to TTM
Send RFC(with mesa-dev on cc) for final sign off on the uAPI
Add pciid for DG1 and turn on uAPI for real