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[SPARC64]: Proper multi-core scheduling support.

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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>
This commit is contained in:
David S. Miller
2007-06-04 17:01:39 -07:00
committed by David S. Miller
parent d887ab3a9b
commit f78eae2e6f
7 changed files with 89 additions and 5 deletions
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19
arch/sparc64/kernel/smp.c
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@@ -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]);
}
}