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authorRusty Russell <rusty@rustcorp.com.au>2008-12-26 22:23:39 +1030
committerRusty Russell <rusty@rustcorp.com.au>2008-12-26 22:23:39 +1030
commit86c6f274f52c3e991d429869780945c0790e7b65 (patch)
tree0538ab2a35a094f093bd1b36c7de4cf60d8a0391 /arch/powerpc/include/asm/topology.h
parent7479a2939df4957ba794cce814379b6d10914bdc (diff)
cpumask: powerpc: Introduce cpumask_of_{node,pcibus} to replace {node,pcibus}_to_cpumask
Impact: New APIs The old node_to_cpumask/node_to_pcibus returned a cpumask_t: these return a pointer to a struct cpumask. Part of removing cpumasks from the stack. (Also replaces powerpc internal uses of node_to_cpumask). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/include/asm/topology.h')
-rw-r--r--arch/powerpc/include/asm/topology.h10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/powerpc/include/asm/topology.h b/arch/powerpc/include/asm/topology.h
index c32da6f9799..bcf25c2b8d2 100644
--- a/arch/powerpc/include/asm/topology.h
+++ b/arch/powerpc/include/asm/topology.h
@@ -22,11 +22,11 @@ static inline cpumask_t node_to_cpumask(int node)
return numa_cpumask_lookup_table[node];
}
+#define cpumask_of_node(node) (&numa_cpumask_lookup_table[node])
+
static inline int node_to_first_cpu(int node)
{
- cpumask_t tmp;
- tmp = node_to_cpumask(node);
- return first_cpu(tmp);
+ return cpumask_first(cpumask_of_node(node));
}
int of_node_to_nid(struct device_node *device);
@@ -46,6 +46,10 @@ static inline int pcibus_to_node(struct pci_bus *bus)
node_to_cpumask(pcibus_to_node(bus)) \
)
+#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \
+ cpu_all_mask : \
+ cpumask_of_node(pcibus_to_node(bus)))
+
/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) { \
.span = CPU_MASK_NONE, \