[SPARC64]: NUMA device infrastructure.
Record and propagate NUMA information for devices.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 0fd9db9..9e58e8c 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -6,6 +6,7 @@
#include <linux/mod_devicetable.h>
#include <linux/slab.h>
#include <linux/errno.h>
+#include <linux/irq.h>
#include <linux/of_device.h>
#include <linux/of_platform.h>
@@ -660,6 +661,7 @@
struct device_node *dp = op->node;
struct device_node *pp, *ip;
unsigned int orig_irq = irq;
+ int nid;
if (irq == 0xffffffff)
return irq;
@@ -672,7 +674,7 @@
printk("%s: direct translate %x --> %x\n",
dp->full_name, orig_irq, irq);
- return irq;
+ goto out;
}
/* Something more complicated. Walk up to the root, applying
@@ -744,6 +746,14 @@
printk("%s: Apply IRQ trans [%s] %x --> %x\n",
op->node->full_name, ip->full_name, orig_irq, irq);
+out:
+ nid = of_node_to_nid(dp);
+ if (nid != -1) {
+ cpumask_t numa_mask = node_to_cpumask(nid);
+
+ irq_set_affinity(irq, numa_mask);
+ }
+
return irq;
}