> Module Name: src > Committed By: chs > Date: Sun Nov 4 00:32:47 UTC 2012 > > Modified Files: > src/sys/arch/sparc/sparc: locore.s pmap.c > > Log Message: > in cpu_switchto(), remove the MP-unsafe code to mark a pmap active on a CPU, > pmap_activate() already does this. add MP locking to pmap_activate() > and pmap_deactivate(). move flushing of user windows and virtual caches > from pamp_activate() to pmap_deactivate().
hmm. this makes pmap_deactivate() do things in UP that weren't being done before at all. switching to/from kernel/lwp for the same lwp will now be flushing the ctx every time. that seems suboptimal? we should really update PMAP_LOCK() to not be kernel lock. .mrg.
