Module Name: src Committed By: martin Date: Fri Jan 1 12:38:50 UTC 2021
Modified Files: src/sys/arch/aarch64/aarch64 [netbsd-9]: cpufunc.c pmap.c Log Message: Pull up following revision(s) (requested by rin in ticket #1170): sys/arch/aarch64/aarch64/cpufunc.c: revision 1.22 (patch) sys/arch/aarch64/aarch64/cpufunc.c: revision 1.23 (patch) sys/arch/aarch64/aarch64/pmap.c: revision 1.81 Set uvmexp.ncolors appropriately, which is required for some CPU models with VIPT icache. Otherwise, alias in virtual address results in inconsistent results, at least for applications that rewrite text of other process, e.g., GDB for arm32. Also, this hopefully fixes other unexpected failures due to alias. Confirmed that there's no observable regression in performance; difference in ``time make -j8'' for GENERIC64 kernel on BCM2837 with and without setting uvmexp.ncolors is within 0.1%. Thanks to ryo@ for discussion. Fix uvmexp.ncolors for some big.LITTLE configuration; it is uncertain which CPU is used as primary, and as a result, secondary CPUs can require larger number of colors. In order to solve this problem, update uvmexp.ncolors via uvm_page_recolor(9) when secondary CPUs are attached, as done for other ports like x86. Pointed out by jmcneill@, and discussed on port-arm@: http://mail-index.netbsd.org/port-arm/2020/07/03/msg006837.html Tested and OK'd by ryo@. Fix previous; add missing <uvm/uvm.h> include. To generate a diff of this commit: cvs rdiff -u -r1.5.4.1 -r1.5.4.2 src/sys/arch/aarch64/aarch64/cpufunc.c cvs rdiff -u -r1.41.2.6 -r1.41.2.7 src/sys/arch/aarch64/aarch64/pmap.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.