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authorRusty Russell <rusty@rustcorp.com.au>2008-12-26 22:23:41 +1030
committerRusty Russell <rusty@rustcorp.com.au>2008-12-26 22:23:41 +1030
commit2258a5bb1064351b552aceaff29393967d694fa3 (patch)
treeddfe5c19232e0dd73963360089cb7dc6c3ea4f53 /arch/alpha
parentb4a2f916a8326065816a0743dd1b0ca2ffd18f5f (diff)
downloadop-kernel-dev-2258a5bb1064351b552aceaff29393967d694fa3.zip
op-kernel-dev-2258a5bb1064351b552aceaff29393967d694fa3.tar.gz
cpumask: alpha: 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. I'm not sure the existing code even compiles, but new version is straightforward. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'arch/alpha')
-rw-r--r--arch/alpha/include/asm/topology.h17
-rw-r--r--arch/alpha/kernel/setup.c5
2 files changed, 22 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/topology.h b/arch/alpha/include/asm/topology.h
index 149532e..b4f284c 100644
--- a/arch/alpha/include/asm/topology.h
+++ b/arch/alpha/include/asm/topology.h
@@ -39,7 +39,24 @@ static inline cpumask_t node_to_cpumask(int node)
return node_cpu_mask;
}
+extern struct cpumask node_to_cpumask_map[];
+/* FIXME: This is dumb, recalculating every time. But simple. */
+static const struct cpumask *cpumask_of_node(int node)
+{
+ int cpu;
+
+ cpumask_clear(&node_to_cpumask_map[node]);
+
+ for_each_online_cpu(cpu) {
+ if (cpu_to_node(cpu) == node)
+ cpumask_set_cpu(cpu, node_to_cpumask_map[node]);
+ }
+
+ return &node_to_cpumask_map[node];
+}
+
#define pcibus_to_cpumask(bus) (cpu_online_map)
+#define cpumask_of_pcibus(bus) (cpu_online_mask)
#endif /* !CONFIG_NUMA */
# include <asm-generic/topology.h>
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index a449e99..02bee69 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -79,6 +79,11 @@ int alpha_l3_cacheshape;
unsigned long alpha_verbose_mcheck = CONFIG_VERBOSE_MCHECK_ON;
#endif
+#ifdef CONFIG_NUMA
+struct cpumask node_to_cpumask_map[MAX_NUMNODES] __read_mostly;
+EXPORT_SYMBOL(node_to_cpumask_map);
+#endif
+
/* Which processor we booted from. */
int boot_cpuid;
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