Page MenuHomeFreeBSD

pciconf: Use VM_MEMATTR_DEVICE on supported architectures
ClosedPublic

Authored by kd on Apr 6 2021, 1:35 PM.

Details

Summary

Some architectures - armv7, armv8 and riscv use VM_MEMATTR_DEVICE when mapping device registers in kernel.
Do the same in pciconf when mmaping BARs.
On armada8k SoC all reads from BARs mapped with VM_MEMATTR_UNCACHEABLE return 0xffs.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Skipped
Unit
Unit Tests Skipped