diff options
Diffstat (limited to 'sys/pc98/i386/machdep.c')
| -rw-r--r-- | sys/pc98/i386/machdep.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sys/pc98/i386/machdep.c b/sys/pc98/i386/machdep.c index 99ec504..92c0e1e 100644 --- a/sys/pc98/i386/machdep.c +++ b/sys/pc98/i386/machdep.c @@ -2280,6 +2280,30 @@ cpu_pcpu_init(struct pcpu *pcpu, int cpuid, size_t size) } +void +spinlock_enter(void) +{ + struct thread *td; + + td = curthread; + if (td->td_md.md_spinlock_count == 0) + td->td_md.md_saved_flags = intr_disable(); + td->td_md.md_spinlock_count++; + critical_enter(); +} + +void +spinlock_exit(void) +{ + struct thread *td; + + td = curthread; + critical_exit(); + td->td_md.md_spinlock_count--; + if (td->td_md.md_spinlock_count == 0) + intr_restore(td->td_md.md_saved_flags); +} + #if defined(I586_CPU) && !defined(NO_F00F_HACK) static void f00f_hack(void *unused); SYSINIT(f00f_hack, SI_SUB_INTRINSIC, SI_ORDER_FIRST, f00f_hack, NULL) |
