[SPARC64]: Proper multi-core scheduling support.

The scheduling domain hierarchy is:

   all cpus -->
      cpus that share an instruction cache -->
          cpus that share an integer execution unit

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 18 insertions, 1 deletions

diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index c550bba3490a..68a45ac93375 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -51,6 +51,8 @@ cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE;
 cpumask_t phys_cpu_present_map __read_mostly = CPU_MASK_NONE;
 cpumask_t cpu_sibling_map[NR_CPUS] __read_mostly =
         { [0 ... NR_CPUS-1] = CPU_MASK_NONE };
+cpumask_t cpu_core_map[NR_CPUS] __read_mostly =
+        { [0 ... NR_CPUS-1] = CPU_MASK_NONE };
 static cpumask_t smp_commenced_mask;
 static cpumask_t cpu_callout_map;
 
@@ -1217,13 +1219,28 @@ void __devinit smp_fill_in_sib_core_maps(void)
                 unsigned int j;
 
                 if (cpu_data(i).core_id == 0) {
-                        cpu_set(i, cpu_sibling_map[i]);
+                        cpu_set(i, cpu_core_map[i]);
                         continue;
                 }
 
                 for_each_possible_cpu(j) {
                         if (cpu_data(i).core_id ==
                             cpu_data(j).core_id)
+                                cpu_set(j, cpu_core_map[i]);
+                }
+        }
+
+        for_each_possible_cpu(i) {
+                unsigned int j;
+
+                if (cpu_data(i).proc_id == -1) {
+                        cpu_set(i, cpu_sibling_map[i]);
+                        continue;
+                }
+
+                for_each_possible_cpu(j) {
+                        if (cpu_data(i).proc_id ==
+                            cpu_data(j).proc_id)
                                 cpu_set(j, cpu_sibling_map[i]);
                 }
         }