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powerpc/mpc85xx: Set pc_hwref to the primary thread ID

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On multithreaded cores (e6500) the CPU ID in the device tree (reg[0]) is
the primary core, which may not match the cpuid, until Book-E threading
is added.
This commit is contained in:
Justin Hibbits
2026-01-20 23:16:17 -05:00
parent c611ef5747
commit 24d048be7a
1 changed files with 14 additions and 2 deletions
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sys/powerpc/mpc85xx/platform_mpc85xx.c
+14 -2
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@@ -302,14 +302,26 @@ mpc85xx_smp_first_cpu(platform_t plat, struct cpuref *cpuref)
static int
mpc85xx_smp_next_cpu(platform_t plat, struct cpuref *cpuref)
{
phandle_t node;
pcell_t reg;
int i;
if (cpu >= maxcpu)
return (ENOENT);
cpuref->cr_cpuid = cpu++;
cpuref->cr_hwref = cpuref->cr_cpuid;
node = OF_finddevice("/cpus");
for (i = 0, node = OF_child(node); i < cpuref->cr_cpuid;
i++, node = OF_peer(node))
;
if (OF_getencprop(node, "reg", &reg, sizeof(reg)) > 0)
cpuref->cr_hwref = reg;
else
cpuref->cr_hwref = cpuref->cr_cpuid;
if (bootverbose)
printf("powerpc_smp_next_cpu: cpuid %d\n", cpuref->cr_cpuid);
printf("powerpc_smp_next_cpu: cpuid %d, hwref %d\n",
cpuref->cr_cpuid, (int)cpuref->cr_hwref);
return (0);
}