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| author | jeff <jeff@FreeBSD.org> | 2008-04-25 05:18:50 +0000 |
|---|---|---|
| committer | jeff <jeff@FreeBSD.org> | 2008-04-25 05:18:50 +0000 |
| commit | 14b586bf964970197e12228d127a713b7db7abcb (patch) | |
| tree | ae275695b8c2f48f9a96c11fe4405ef85fe1bc79 /sys/i386/include/pcpu.h | |
| 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/i386/include/pcpu.h')
| -rw-r--r-- | sys/i386/include/pcpu.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/i386/include/pcpu.h b/sys/i386/include/pcpu.h index 67cb530..c28ae64 100644 --- a/sys/i386/include/pcpu.h +++ b/sys/i386/include/pcpu.h @@ -46,6 +46,7 @@ * other processors" */ #define PCPU_MD_FIELDS \ + char pc_monitorbuf[128] __aligned(128); /* cache line */ \ struct pcpu *pc_prvspace; /* Self-reference */ \ struct pmap *pc_curpmap; \ struct i386tss pc_common_tss; \ |
