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MFi386: revision 1.249

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Add a cyclic hook for DTrace.
This commit is contained in:
Yoshihiro Takahashi 2008-05-24 09:07:52 +00:00
parent 4970de14a5
commit 6f73422ac9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=179283
1 changed files with 17 additions and 0 deletions
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17
sys/pc98/cbus/clock.c
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@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$");
#include "opt_apic.h"
#include "opt_clock.h"
#include "opt_kdtrace.h"
#include "opt_isa.h"
#include "opt_mca.h"
@ -77,6 +78,10 @@ __FBSDID("$FreeBSD$");
#include <isa/isavar.h>
#endif
#ifdef KDTRACE_HOOKS
#include <sys/dtrace_bsd.h>
#endif
#define TIMER_DIV(x) ((i8254_freq + (x) / 2) / (x))
int clkintr_pending;
@ -134,6 +139,18 @@ clkintr(struct trapframe *frame)
mtx_unlock_spin(&clock_lock);
}
KASSERT(!using_lapic_timer, ("clk interrupt enabled with lapic timer"));
#ifdef KDTRACE_HOOKS
/*
* If the DTrace hooks are configured and a callback function
* has been registered, then call it to process the high speed
* timers.
*/
int cpu = PCPU_GET(cpuid);
if (lapic_cyclic_clock_func[cpu] != NULL)
(*lapic_cyclic_clock_func[cpu])(frame);
#endif
hardclock(TRAPF_USERMODE(frame), TRAPF_PC(frame));
return (FILTER_HANDLED);
}