void
starfire_pc_ittrans_init(int upaid)
{
paddr_t pa;
pa = STARFIRE_UPAID2UPS(upaid) | STARFIRE_PSI_BASE;
pa |= (STARFIRE_PSI_PCREG_OFF | STARFIRE_PC_INT_MAP);
/*
* Since we direct all interrupts to the boot processor, we
* simply program the port controller ITTR hardware with a
* single mapping.
*/
pa += CPU_UPAID * 0x10;
stwa(pa, ASI_PHYS_NON_CACHED, STARFIRE_UPAID2HWMID(cpu_myid()));
}
/*
* This routine searches for a slot in the soft ITTR table
* that was reserved earlier by matching the mondovec
* mapping regaddr argument with the corresponding field in
* the table. Note that the soft ITTR table mirrors the
* corresponding hw table in the starfire port controller(PC)
* asics. A new slot will be obtained if the slot cannot
* be found. (not reserved previously). The routine then programs
* in the target cpu id into the PC ITTR hardware, updates the
* soft table and return the index to this slot as the target
* id cookie.
*/
int
pc_translate_tgtid(caddr_t ittr_cookie, int cpu_id,
volatile uint64_t *mondovec_addr)
{
struct pc_ittrans_data *ittptr;
int i;
int foundslot = -1;
ASSERT(ittr_cookie != NULL);
ittptr = (struct pc_ittrans_data *)ittr_cookie;
mutex_enter(&ittptr->ittrans_lock);
/*
* Search the mondovec addrlist to see if we
* already reserved/used a slot for this particular
* mondovec mapping regaddr.
*/
for (i = 0; i < 32; i++) {
if (mondovec_addr == ittptr->ittrans_mondovec[i]) {
/*
* found the slot that matches the
* mondo vec in question
*/
foundslot = i;
break;
}
if (foundslot == -1 && ittptr->ittrans_mondovec[i] == NULL)
/* keep track of a empty slot */
foundslot = i;
}
if (foundslot != -1) {
/* We found a slot for this mondo vec, let's use it */
stphysio(ittptr->ittransreg_physaddr[foundslot],
STARFIRE_UPAID2HWMID(cpu_id));
ittptr->ittrans_mondovec[foundslot] = mondovec_addr;
} else {
cmn_err(CE_PANIC, "No more ITTR slots!!");
}
mutex_exit(&ittptr->ittrans_lock);
return (foundslot);
}
