diff options
| author | Jeff Garzik <jgarzik@pretzel.yyz.us> | 2005-06-22 13:07:28 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-06-22 13:07:28 -0400 |
| commit | ff40c6d3d1437ecdf295b8e39adcb06c3d6021ef (patch) | |
| tree | 3666d029b4bd4df2909dbefd9c7a09e6042b7d32 /arch/ppc64/kernel/prom.c | |
| parent | 8bf62ecee58360749c5f0e68bc97d5e02a6816b1 (diff) | |
| parent | 2a5a68b840cbab31baab2d9b2e1e6de3b289ae1e (diff) | |
Merge upstream kernel changes into 'C/H/S support' branch of libata.
Diffstat (limited to 'arch/ppc64/kernel/prom.c')
| -rw-r--r-- | arch/ppc64/kernel/prom.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c index eb6538b5800..47727a6f734 100644 --- a/arch/ppc64/kernel/prom.c +++ b/arch/ppc64/kernel/prom.c @@ -884,6 +884,7 @@ static int __init early_init_dt_scan_cpus(unsigned long node, { char *type = get_flat_dt_prop(node, "device_type", NULL); u32 *prop; + unsigned long size; /* We are scanning "cpu" nodes only */ if (type == NULL || strcmp(type, "cpu") != 0) @@ -929,6 +930,17 @@ static int __init early_init_dt_scan_cpus(unsigned long node, cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_ALTIVEC; } + /* + * Check for an SMT capable CPU and set the CPU feature. We do + * this by looking at the size of the ibm,ppc-interrupt-server#s + * property + */ + prop = (u32 *)get_flat_dt_prop(node, "ibm,ppc-interrupt-server#s", + &size); + cur_cpu_spec->cpu_features &= ~CPU_FTR_SMT; + if (prop && ((size / sizeof(u32)) > 1)) + cur_cpu_spec->cpu_features |= CPU_FTR_SMT; + return 0; } |