diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-10-04 11:16:38 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-04 16:55:27 +0200 |
| commit | b6cf2583ba026ca563ff8b15805fcf30b8e192a7 (patch) | |
| tree | 4f8af6c2cd0ce3ac22ee0a918177e3fd20dcf80a /arch | |
| parent | [PATCH] genirq: irq: add a dynamic irq creation API (diff) | |
| download | linux-b6cf2583ba026ca563ff8b15805fcf30b8e192a7.tar.xz linux-b6cf2583ba026ca563ff8b15805fcf30b8e192a7.zip | |
[PATCH] genirq: ia64 irq: Dynamic irq support
[akpm@osdl.org: build fix]
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rajesh Shah <rajesh.shah@intel.com>
Cc: Andi Kleen <ak@muc.de>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@UNISYS.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ia64/kernel/irq_ia64.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index aafca18ab33b..ab2d19c3661f 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -30,6 +30,7 @@ #include <linux/smp_lock.h> #include <linux/threads.h> #include <linux/bitops.h> +#include <linux/irq.h> #include <asm/delay.h> #include <asm/intrinsics.h> @@ -105,6 +106,25 @@ reserve_irq_vector (int vector) return test_and_set_bit(pos, ia64_vector_mask); } +/* + * Dynamic irq allocate and deallocation for MSI + */ +int create_irq(void) +{ + int vector = assign_irq_vector(AUTO_ASSIGN); + + if (vector >= 0) + dynamic_irq_init(vector); + + return vector; +} + +void destroy_irq(unsigned int irq) +{ + dynamic_irq_cleanup(irq); + free_irq_vector(irq); +} + #ifdef CONFIG_SMP # define IS_RESCHEDULE(vec) (vec == IA64_IPI_RESCHEDULE) #else |