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Draft implementation of IPI handling.

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This commit is contained in:
Marcel Moolenaar 2001-12-30 09:24:29 +00:00
parent 6dc3bd7b4c
commit 45cc363828
1 changed files with 19 additions and 1 deletions
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20
sys/ia64/ia64/interrupt.c
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@ -49,13 +49,13 @@
#include <sys/ktr.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/smp.h>
#include <machine/clock.h>
#include <machine/reg.h>
#include <machine/frame.h>
#include <machine/intr.h>
#include <machine/sapicvar.h>
#include <machine/smp.h>
#ifdef EVCNT_COUNTERS
struct evcnt clock_intr_evcnt; /* event counter for clock intrs. */
@ -120,6 +120,24 @@ interrupt(u_int64_t vector, struct trapframe *framep)
if((++schedclk2 & 0x7) == 0)
statclock((struct clockframe *)framep);
#ifdef SMP
} else if (vector == mp_ipi_vector[IPI_AST]) {
ast(framep);
} else if (vector == mp_ipi_vector[IPI_RENDEZVOUS]) {
smp_rendezvous_action();
} else if (vector == mp_ipi_vector[IPI_STOP]) {
u_int32_t mybit = 1 << PCPU_GET(cpuid);
savectx(PCPU_GET(pcb));
stopped_cpus |= mybit;
while ((started_cpus & mybit) == 0)
/* spin */;
started_cpus &= ~mybit;
stopped_cpus &= ~mybit;
if (PCPU_GET(cpuid) == 0 && cpustop_restartfunc != NULL) {
void (*f)(void) = cpustop_restartfunc;
cpustop_restartfunc = NULL;
(*f)();
}
} else if (vector == mp_ipi_vector[IPI_TEST]) {
mp_ipi_test++;
#endif