From 1603b5aca4f15b34848fb5594d0c7b6333b99144 Mon Sep 17 00:00:00 2001 From: Atsushi Nemoto Date: Thu, 2 Nov 2006 02:08:36 +0900 Subject: [MIPS] IRQ cleanups This is a big irq cleanup patch. * Use set_irq_chip() to register irq_chip. * Initialize .mask, .unmask, .mask_ack field. Functions for these method are already exist in most case. * Do not initialize .startup, .shutdown, .enable, .disable fields if default routines provided by irq_chip_set_defaults() were suitable. * Remove redundant irq_desc initializations. * Remove unnecessary local_irq_save/local_irq_restore, spin_lock. With this cleanup, it would be easy to switch to slightly lightwait irq flow handlers (handle_level_irq(), etc.) instead of __do_IRQ(). Though whole this patch is quite large, changes in each irq_chip are not quite simple. Please review and test on your platform. Thanks. Signed-off-by: Atsushi Nemoto Signed-off-by: Ralf Baechle --- arch/mips/sgi-ip27/ip27-irq.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'arch/mips/sgi-ip27/ip27-irq.c') diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c index 270ecd3e6b4a..824320281a3a 100644 --- a/arch/mips/sgi-ip27/ip27-irq.c +++ b/arch/mips/sgi-ip27/ip27-irq.c @@ -332,11 +332,6 @@ static inline void disable_bridge_irq(unsigned int irq) intr_disconnect_level(cpu, swlevel); } -static void mask_and_ack_bridge_irq(unsigned int irq) -{ - disable_bridge_irq(irq); -} - static void end_bridge_irq(unsigned int irq) { if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)) && @@ -348,18 +343,16 @@ static struct irq_chip bridge_irq_type = { .typename = "bridge", .startup = startup_bridge_irq, .shutdown = shutdown_bridge_irq, - .enable = enable_bridge_irq, - .disable = disable_bridge_irq, - .ack = mask_and_ack_bridge_irq, + .ack = disable_bridge_irq, + .mask = disable_bridge_irq, + .mask_ack = disable_bridge_irq, + .unmask = enable_bridge_irq, .end = end_bridge_irq, }; void __devinit register_bridge_irq(unsigned int irq) { - irq_desc[irq].status = IRQ_DISABLED; - irq_desc[irq].action = 0; - irq_desc[irq].depth = 1; - irq_desc[irq].chip = &bridge_irq_type; + set_irq_chip(irq, &bridge_irq_type); } int __devinit request_bridge_irq(struct bridge_controller *bc) -- cgit v1.2.3