CVS commit: [netbsd-9] src/sys/arch/aarch64/aarch64

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Sun Sep 22 10:36:30 UTC 2019

Modified Files:
        src/sys/arch/aarch64/aarch64 [netbsd-9]: aarch64_machdep.c

Log Message:
Pull up following revision(s) (requested by ryo in ticket #215):

        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.30
        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.31
        sys/arch/aarch64/aarch64/aarch64_machdep.c: revision 1.29

Do not assume that DRAM is linear when creating KSEG mappings. Instead,
create L2 blocks to cover all ranges specified in the memory map.

 -

use L1-L3 blocks/pages for KSEG mappings to fit dramblocks exactly.
r1.29 and this changes avoid over cache prefetch problem (perhaps) with PMAP_MAP_POOLPAGE/KSEG on CortexA72, and be more stable for rockpro64.

 -

used L3 even if L2 could cover the range. fix to use larger block if possible good enough.
pointed out by jmcneill@. thanks.


To generate a diff of this commit:
cvs rdiff -u -r1.28 -r1.28.4.1 src/sys/arch/aarch64/aarch64/aarch64_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.