/*
* Return non-zero if the CPU belongs in the given PG
*/
static int
pg_cmt_cpu_belongs(pg_t *pg, cpu_t *cp)
{
cpu_t *pg_cpu;
pg_cpu = GROUP_ACCESS(&pg->pg_cpus, 0);
ASSERT(pg_cpu != NULL);
/*
* The CPU belongs if, given the nature of the hardware sharing
* relationship represented by the PG, the CPU has that
* relationship with some other CPU already in the PG
*/
if (pg_plat_cpus_share(cp, pg_cpu, ((pghw_t *)pg)->pghw_hw))
return (1);
return (0);
}
int
pg_plat_cpus_share(cpu_t *cpu_a, cpu_t *cpu_b, pghw_type_t hw)
{
int impl;
impl = cpunodes[cpu_a->cpu_id].implementation;
switch (hw) {
case PGHW_IPIPE:
case PGHW_CHIP:
return (pg_plat_hw_instance_id(cpu_a, hw) ==
pg_plat_hw_instance_id(cpu_b, hw));
case PGHW_CACHE:
if ((IS_PANTHER(impl) || IS_OLYMPUS_C(impl) ||
IS_JUPITER(impl)) && pg_plat_cpus_share(cpu_a,
cpu_b, PGHW_CHIP)) {
return (1);
} else {
return (0);
}
}
return (0);
}
