From: Christoph Hellwig <hch@lst•de>
To: linuxppc-dev@ozlabs•org
Subject: [PATCH 1/2] powerpc: implement pcibus_to_node and pcibus_to_cpumask
Date: Tue, 6 Jun 2006 16:09:39 +0200 [thread overview]
Message-ID: <20060606140939.GA6974@lst.de> (raw)
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) { \
reply other threads:[~2006-06-06 14:09 UTC|newest]
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