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o Synchronize the APs timebase and decrementer values with the BSP.

Browse source 
o  Don't set/get the PIR register. It's CPU dependent.
o  Also initialize pcpup->pc_curpcb, in case it's dereferenced.
This commit is contained in:
Marcel Moolenaar 2008-09-16 16:33:36 +00:00
parent 020247a4d2
commit bdd42e42d7
1 changed files with 13 additions and 2 deletions
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15
sys/powerpc/powerpc/mp_machdep.c
View file

@ -48,6 +48,7 @@ extern struct pcpu __pcpu[MAXCPU];
volatile static int ap_awake;
volatile static u_int ap_state;
volatile static uint32_t ap_decr;
volatile static uint32_t ap_tbl;
int mp_ipi_test = 0;
@ -55,19 +56,21 @@ void
machdep_ap_bootstrap(void)
{
// __asm __volatile("mtspr 1023,%0" :: "r"(PCPU_GET(cpuid)));
__asm __volatile("mfspr %0,1023" : "=r"(pcpup->pc_pir));
pcpup->pc_awake = 1;
while (ap_state == 0)
;
mtspr(SPR_TBL, 0);
mtspr(SPR_TBU, 0);
mtspr(SPR_TBL, ap_tbl);
__asm __volatile("mtdec %0" :: "r"(ap_decr));
ap_awake++;
/* Initialize curthread. */
PCPU_SET(curthread, PCPU_GET(idlethread));
PCPU_SET(curpcb, curthread->td_pcb);
mtmsr(mfmsr() | PSL_EE);
sched_throw(NULL);
@ -202,8 +205,16 @@ cpu_mp_unleash(void *dummy)
}
ap_awake = 1;
__asm __volatile("mftb %0" : "=r"(ap_tbl));
ap_tbl += 10;
__asm __volatile("mfdec %0" : "=r"(ap_decr));
ap_state++;
powerpc_sync();
mtspr(SPR_TBL, 0);
mtspr(SPR_TBU, 0);
mtspr(SPR_TBL, ap_tbl);
while (ap_awake < smp_cpus)
;