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347ec24363
Adreno740 gains a memory and TLB section, ArmSmmu4K its live batch maps and unmap invalidation, AdrenoMetal the refusing render encoder and list-only priming, ShengUfs its optional stage 1 windows.
1.2 KiB
ArmSmmu4K
Start with the adaptation procedure for board inputs, source changes, build integration and verification order.
ARM SMMUv2 native 4 KiB table kit. Builds and programs stage-1/stage-2 context tables.
| Repository | Maintainer | Scope |
|---|---|---|
| ArmSmmu4K | UniXNU | ARM SMMUv2 native 4 KiB table kit. Builds and programs stage-1/stage-2 context tables. |
State
Used by Adreno740 and the storage drivers.
Live updates map or unmap a batch of pages in one transaction: one page publication, one TLB synchronization and one recheck per batch. ArmSmmu4KLiveMapContextBatchExclusive maps pages the caller owns exclusively and skips the alias check against the existing ranges; the changes are still checked against each other. An unmap of up to 512 pages invalidates each removed page with TLBIVAL; a larger unmap invalidates the ASID.
Build
The consuming driver's recipe compiles the kit sources. sheng includes ArmSmmu4K*.c in its GPU archive. Supply MMIO, context/stream ownership and allocation callbacks as described in platform adaptation.