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| author | Keir Fraser <keir.fraser@citrix.com> | 2010-05-04 12:48:28 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2010-05-04 12:48:28 +0100 |
| commit | 1adb34ea846d8034988e54fa7d117a08b4b719fb (patch) | |
| tree | cb1d8c54a3b4f1755dbf470033043e025c15ad42 /xen/include/asm-x86/hardirq.h | |
| parent | 3ede2e71352e2a73da42eac8929782c2b3dd9d6d (diff) | |
| download | xen-1adb34ea846d8034988e54fa7d117a08b4b719fb.tar.gz xen-1adb34ea846d8034988e54fa7d117a08b4b719fb.tar.bz2 xen-1adb34ea846d8034988e54fa7d117a08b4b719fb.zip | |
CPUIDLE: re-implement mwait wakeup process
It MWAITs on a completely new flag field, avoiding the IPI-avoidance
semantics of softirq_pending. It also does wakeup-waiting checks on
timer_deadline_start, that being the field that initiates wakeup via
the MONITORed memory region.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
Signed-off-by: Wei Gang <gang.wei@intel.com>
Diffstat (limited to 'xen/include/asm-x86/hardirq.h')
| -rw-r--r-- | xen/include/asm-x86/hardirq.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/xen/include/asm-x86/hardirq.h b/xen/include/asm-x86/hardirq.h index c426fdea07..5b9d18b875 100644 --- a/xen/include/asm-x86/hardirq.h +++ b/xen/include/asm-x86/hardirq.h @@ -8,6 +8,7 @@ typedef struct { unsigned long __softirq_pending; unsigned int __local_irq_count; unsigned int __nmi_count; + bool_t __mwait_wakeup; } __cacheline_aligned irq_cpustat_t; #include <xen/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ |