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author | jeff <jeff@FreeBSD.org> | 2008-04-25 05:18:50 +0000 |
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committer | jeff <jeff@FreeBSD.org> | 2008-04-25 05:18:50 +0000 |
commit | 14b586bf964970197e12228d127a713b7db7abcb (patch) | |
tree | ae275695b8c2f48f9a96c11fe4405ef85fe1bc79 /sys/sparc64 | |
parent | 3cd35a205135ce8a15349a035286650c3452cafd (diff) | |
download | FreeBSD-src-14b586bf964970197e12228d127a713b7db7abcb.zip FreeBSD-src-14b586bf964970197e12228d127a713b7db7abcb.tar.gz |
- Add an integer argument to idle to indicate how likely we are to wake
from idle over the next tick.
- Add a new MD routine, cpu_wake_idle() to wakeup idle threads who are
suspended in cpu specific states. This function can fail and cause the
scheduler to fall back to another mechanism (ipi).
- Implement support for mwait in cpu_idle() on i386/amd64 machines that
support it. mwait is a higher performance way to synchronize cpus
as compared to hlt & ipis.
- Allow selecting the idle routine by name via sysctl machdep.idle. This
replaces machdep.cpu_idle_hlt. Only idle routines supported by the
current machine are permitted.
Sponsored by: Nokia
Diffstat (limited to 'sys/sparc64')
-rw-r--r-- | sys/sparc64/sparc64/machdep.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sys/sparc64/sparc64/machdep.c b/sys/sparc64/sparc64/machdep.c index 7d1aa02..35e1fed 100644 --- a/sys/sparc64/sparc64/machdep.c +++ b/sys/sparc64/sparc64/machdep.c @@ -750,12 +750,19 @@ sparc64_shutdown_final(void *dummy, int howto) } void -cpu_idle(void) +cpu_idle(int busy) { /* Insert code to halt (until next interrupt) for the idle loop */ } int +cpu_idle_wakeup(int cpu) +{ + + return (0); +} + +int ptrace_set_pc(struct thread *td, u_long addr) { |