Module Name: src
Committed By: skrll
Date: Wed Feb 5 07:37:36 UTC 2020
Modified Files:
src/sys/arch/arm/arm: cpufunc.c
src/sys/arch/arm/arm32: armv7_generic_space.c pmap.c
src/sys/arch/arm/conf: Makefile.arm
src/sys/arch/arm/include/arm32: pmap.h
Log Message:
Fix the armv[67] memory attributes for uncached memory. Previously it was
mapped as strongly-ordered which meant that unaligned accesses would fault.
armv7_generic_bs_map now maps pages with PMAP_DEV which is treated as SO
bus_dma continues to use PMAP_NOCACHE as appropriate, but this now get
mapped to the correct memory attribute bits for armv[67]
DEVMAP_ENTRY usees a new flag PTE_DEV.
The workaround for the unaligned access faults is now removed.
XXX Other armv[67] boards bus_space implementations should be checked.
XXX There is scope to reduce the difference to aarch64