summaryrefslogtreecommitdiffstats
path: root/include/asm-ia64
diff options
context:
space:
mode:
authorYasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>2007-07-17 21:22:33 +0900
committerTony Luck <tony.luck@intel.com>2007-07-17 09:52:13 -0700
commit4994be1b3fe9120c88022ff5c0c33f6312b17adb (patch)
treeb4d32c77681029d2b5dfd94b0eb5a09be0ccae9e /include/asm-ia64
parente1b30a392835e92581db09a4e8b4b2ad53a0c370 (diff)
downloadop-kernel-dev-4994be1b3fe9120c88022ff5c0c33f6312b17adb.zip
op-kernel-dev-4994be1b3fe9120c88022ff5c0c33f6312b17adb.tar.gz
[IA64] Add support for vector domain
Add fundamental support for multiple vector domain. There still exists only one vector domain even with this patch. IRQ migration across domain is not supported yet by this patch. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'include/asm-ia64')
-rw-r--r--include/asm-ia64/hw_irq.h4
-rw-r--r--include/asm-ia64/irq.h9
2 files changed, 10 insertions, 3 deletions
diff --git a/include/asm-ia64/hw_irq.h b/include/asm-ia64/hw_irq.h
index 4eff7ff..97ea390 100644
--- a/include/asm-ia64/hw_irq.h
+++ b/include/asm-ia64/hw_irq.h
@@ -92,14 +92,16 @@ extern __u8 isa_irq_to_vector_map[16];
struct irq_cfg {
ia64_vector vector;
+ cpumask_t domain;
};
extern spinlock_t vector_lock;
extern struct irq_cfg irq_cfg[NR_IRQS];
+#define irq_to_domain(x) irq_cfg[(x)].domain
DECLARE_PER_CPU(int[IA64_NUM_VECTORS], vector_irq);
extern struct hw_interrupt_type irq_type_ia64_lsapic; /* CPU-internal interrupt controller */
-extern int bind_irq_vector(int irq, int vector);
+extern int bind_irq_vector(int irq, int vector, cpumask_t domain);
extern int assign_irq_vector (int irq); /* allocate a free vector */
extern void free_irq_vector (int vector);
extern int reserve_irq_vector (int vector);
diff --git a/include/asm-ia64/irq.h b/include/asm-ia64/irq.h
index 6722161..35b360b 100644
--- a/include/asm-ia64/irq.h
+++ b/include/asm-ia64/irq.h
@@ -14,8 +14,13 @@
#include <linux/types.h>
#include <linux/cpumask.h>
-#define NR_IRQS 256
-#define NR_IRQ_VECTORS NR_IRQS
+#define NR_VECTORS 256
+
+#if (NR_VECTORS + 32 * NR_CPUS) < 1024
+#define NR_IRQS (NR_VECTORS + 32 * NR_CPUS)
+#else
+#define NR_IRQS 1024
+#endif
static __inline__ int
irq_canonicalize (int irq)
OpenPOWER on IntegriCloud