* [PATCH 1/2] powerpc: implement pcibus_to_node and pcibus_to_cpumask
@ 2006-06-06 14:09 Christoph Hellwig
0 siblings, 0 replies; only message in thread
From: Christoph Hellwig @ 2006-06-06 14:09 UTC (permalink / raw)
To: linuxppc-dev
On 64bit powerpc we can find out what node a pci bus hangs off, so
implement the topology.h macros that export this information.
For 32bit this seems a little more difficult, but I don't know of 32bit
powerpc NUMA machines either, so let's leave it out for now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Index: linux-2.6/include/asm-powerpc/topology.h
===================================================================
--- linux-2.6.orig/include/asm-powerpc/topology.h 2006-05-02 16:26:14.000000000 +0200
+++ linux-2.6/include/asm-powerpc/topology.h 2006-05-30 14:42:18.000000000 +0200
@@ -32,8 +32,13 @@
int of_node_to_nid(struct device_node *device);
+#ifdef CONFIG_PPC64
+#define pcibus_to_node(bus) (of_node_to_nid(bus->sysdata))
+#define pcibus_to_cpumask(bus) (node_to_cpumask(of_node_to_nid(bus->sysdata)))
+#else
#define pcibus_to_node(node) (-1)
#define pcibus_to_cpumask(bus) (cpu_online_map)
+#endif
/* sched_domains SD_NODE_INIT for PPC64 machines */
#define SD_NODE_INIT (struct sched_domain) { \
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