diff options
| author | David Howells <dhowells@redhat.com> | 2006-09-26 08:32:07 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 17:48:53 +0200 |
| commit | af8c65b57aaa4ae321af34dbfc5ca7f5625263fe (patch) | |
| tree | 404b7054e52f8cd0a4347649cae8b5ab82fec357 | |
| parent | [PATCH] FRV: improve FRV's use of generic IRQ handling (diff) | |
| download | linux-af8c65b57aaa4ae321af34dbfc5ca7f5625263fe.tar.xz linux-af8c65b57aaa4ae321af34dbfc5ca7f5625263fe.zip | |
[PATCH] FRV: permit __do_IRQ() to be dispensed with
Permit __do_IRQ() to be dispensed with based on a configuration option.
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | arch/frv/Kconfig | 4 | ||||
| -rw-r--r-- | include/linux/irq.h | 6 | ||||
| -rw-r--r-- | kernel/irq/handle.c | 2 |
3 files changed, 12 insertions, 0 deletions
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig index 5833808fb823..f7b171b92ea2 100644 --- a/arch/frv/Kconfig +++ b/arch/frv/Kconfig @@ -29,6 +29,10 @@ config GENERIC_HARDIRQS bool default y +config GENERIC_HARDIRQS_NO__DO_IRQ + bool + default y + config GENERIC_TIME bool default y diff --git a/include/linux/irq.h b/include/linux/irq.h index fbf6d901e9c2..48d3cb3b6a47 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -320,7 +320,9 @@ handle_irq_name(void fastcall (*handle)(unsigned int, struct irq_desc *, * Monolithic do_IRQ implementation. * (is an explicit fastcall, because i386 4KSTACKS calls it from assembly) */ +#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ extern fastcall unsigned int __do_IRQ(unsigned int irq, struct pt_regs *regs); +#endif /* * Architectures call this to let the generic IRQ layer @@ -332,10 +334,14 @@ static inline void generic_handle_irq(unsigned int irq, struct pt_regs *regs) { struct irq_desc *desc = irq_desc + irq; +#ifdef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ + desc->handle_irq(irq, desc, regs); +#else if (likely(desc->handle_irq)) desc->handle_irq(irq, desc, regs); else __do_IRQ(irq, regs); +#endif } /* Handling of unhandled and spurious interrupts: */ diff --git a/kernel/irq/handle.c b/kernel/irq/handle.c index 48a53f68af96..4c6cdbaed661 100644 --- a/kernel/irq/handle.c +++ b/kernel/irq/handle.c @@ -154,6 +154,7 @@ irqreturn_t handle_IRQ_event(unsigned int irq, struct pt_regs *regs, return retval; } +#ifndef CONFIG_GENERIC_HARDIRQS_NO__DO_IRQ /** * __do_IRQ - original all in one highlevel IRQ handler * @irq: the interrupt number @@ -253,6 +254,7 @@ out: return 1; } +#endif #ifdef CONFIG_TRACE_IRQFLAGS |