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Differential D30655 Diff 90468 sys/riscv/riscv/mp_machdep.c

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sys/riscv/riscv/mp_machdep.c

Show First 20 Lines • Show All 526 Lines • ▼ Show 20 Lines if (OF_getproplen(node, "mmu-type") < 0)
return (0); return (0);
return (1); return (1);
} }
void void
cpu_mp_setmaxid(void) cpu_mp_setmaxid(void)
{ {
#ifdef FDT
int cores; int cores;
#ifdef FDT
cores = ofw_cpu_early_foreach(cpu_check_mmu, true); cores = ofw_cpu_early_foreach(cpu_check_mmu, true);
if (cores > 0) { if (cores > 0) {
cores = MIN(cores, MAXCPU); cores = MIN(cores, MAXCPU);
if (bootverbose) if (bootverbose)
printf("Found %d CPUs in the device tree\n", cores); printf("Found %d CPUs in the device tree\n", cores);
mp_ncpus = cores; mp_ncpus = cores;
mp_maxid = cores - 1; mp_maxid = cores - 1;
cpu_enum_method = CPUS_FDT; cpu_enum_method = CPUS_FDT;
return; } else
}
#endif #endif
{
mhorneUnsubmitted
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No nicer way to do this I suppose :|

mhorne: No nicer way to do this I suppose :|
if (bootverbose) if (bootverbose)
printf("No CPU data, limiting to 1 core\n"); printf("No CPU data, limiting to 1 core\n");
mp_ncpus = 1; mp_ncpus = 1;
mp_maxid = 0; mp_maxid = 0;
}
if (TUNABLE_INT_FETCH("hw.ncpu", &cores)) {
if (cores > 0 && cores < mp_ncpus) {
mp_ncpus = cores;
mp_maxid = cores - 1;
}
}
} }