From 5e94653c0460d73420f12341b97ff6475bb255a5 Mon Sep 17 00:00:00 2001 From: Wu Zhangjin Date: Wed, 10 Mar 2010 02:27:12 +0800 Subject: [PATCH] RT: MIPS: Un-thread several interrupts commit cb7a435c2211b301598ded1ae051138b077b6eb9 in tip. This patch un-thread all of the interrupts whose handler is no_action, which can return quickly, and also, several other interrupts, such as bus error interrupt, halt interrupt, for they are urgent to the system, to un-thread them too. Signed-off-by: Wu Zhangjin Signed-off-by: Paul Gortmaker --- arch/mips/ar7/irq.c | 3 ++- arch/mips/bcm63xx/irq.c | 1 + arch/mips/cobalt/irq.c | 1 + arch/mips/dec/setup.c | 4 ++++ arch/mips/emma/markeins/irq.c | 2 +- arch/mips/lasat/interrupt.c | 1 + arch/mips/mti-malta/malta-int.c | 6 ++++-- arch/mips/nxp/pnx8550/common/int.c | 2 +- arch/mips/pmc-sierra/msp71xx/msp_irq.c | 5 +++-- arch/mips/sgi-ip22/ip22-int.c | 10 +++++----- arch/mips/sni/rm200.c | 1 + arch/mips/vr41xx/common/irq.c | 1 + 12 files changed, 25 insertions(+), 12 deletions(-) diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c index c781556..fce30ee 100644 --- a/arch/mips/ar7/irq.c +++ b/arch/mips/ar7/irq.c @@ -97,7 +97,8 @@ static struct irq_chip ar7_sec_irq_type = { static struct irqaction ar7_cascade_action = { .handler = no_action, - .name = "AR7 cascade interrupt" + .name = "AR7 cascade interrupt", + .flags = IRQF_NODELAY, }; static void __init ar7_irq_init(int base) diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c index a0c5cd1..3e60c93 100644 --- a/arch/mips/bcm63xx/irq.c +++ b/arch/mips/bcm63xx/irq.c @@ -234,6 +234,7 @@ static struct irq_chip bcm63xx_external_irq_chip = { static struct irqaction cpu_ip2_cascade_action = { .handler = no_action, .name = "cascade_ip2", + .flags = IRQF_NODELAY, }; void __init arch_init_irq(void) diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c index cb9bf82..0cbd3b6 100644 --- a/arch/mips/cobalt/irq.c +++ b/arch/mips/cobalt/irq.c @@ -48,6 +48,7 @@ asmlinkage void plat_irq_dispatch(void) static struct irqaction cascade = { .handler = no_action, .name = "cascade", + .flags = IRQF_NODELAY, }; void __init arch_init_irq(void) diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c index bd5431e..61b8d9c 100644 --- a/arch/mips/dec/setup.c +++ b/arch/mips/dec/setup.c @@ -100,20 +100,24 @@ int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU); static struct irqaction ioirq = { .handler = no_action, .name = "cascade", + .flags = IRQF_NODELAY, }; static struct irqaction fpuirq = { .handler = no_action, .name = "fpu", + .flags = IRQF_NODELAY, }; static struct irqaction busirq = { .flags = IRQF_DISABLED, .name = "bus error", + .flags = IRQF_NODELAY, }; static struct irqaction haltirq = { .handler = dec_intr_halt, .name = "halt", + .flags = IRQF_NODELAY, }; diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c index 9504b7e..acf3ca9 100644 --- a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c @@ -182,7 +182,7 @@ void emma2rh_gpio_irq_init(void) static struct irqaction irq_cascade = { .handler = no_action, - .flags = 0, + .flags = IRQF_NODELAY, .name = "cascade", .dev_id = NULL, .next = NULL, diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c index 1353fb1..c8a4e0e 100644 --- a/arch/mips/lasat/interrupt.c +++ b/arch/mips/lasat/interrupt.c @@ -105,6 +105,7 @@ asmlinkage void plat_irq_dispatch(void) static struct irqaction cascade = { .handler = no_action, .name = "cascade", + .flags = IRQF_NODELAY, }; void __init arch_init_irq(void) diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index 15949b0..1e9a7c1 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -349,12 +349,14 @@ unsigned int plat_ipi_resched_int_xlate(unsigned int cpu) static struct irqaction i8259irq = { .handler = no_action, - .name = "XT-PIC cascade" + .name = "XT-PIC cascade", + .flags = IRQF_NODELAY, }; static struct irqaction corehi_irqaction = { .handler = no_action, - .name = "CoreHi" + .name = "CoreHi", + .flags = IRQF_NODELAY, }; static msc_irqmap_t __initdata msc_irqmap[] = { diff --git a/arch/mips/nxp/pnx8550/common/int.c b/arch/mips/nxp/pnx8550/common/int.c index cfed505..13ff03b 100644 --- a/arch/mips/nxp/pnx8550/common/int.c +++ b/arch/mips/nxp/pnx8550/common/int.c @@ -165,7 +165,7 @@ static struct irq_chip level_irq_type = { static struct irqaction gic_action = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "GIC", }; diff --git a/arch/mips/pmc-sierra/msp71xx/msp_irq.c b/arch/mips/pmc-sierra/msp71xx/msp_irq.c index 734d598..704a60b 100644 --- a/arch/mips/pmc-sierra/msp71xx/msp_irq.c +++ b/arch/mips/pmc-sierra/msp71xx/msp_irq.c @@ -97,8 +97,9 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs) } static struct irqaction cascade_msp = { - .handler = no_action, - .name = "MSP cascade" + .handler= no_action, + .name = "MSP cascade", + .flags = IRQF_NODELAY, }; diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c index 383f11d..18b1a24 100644 --- a/arch/mips/sgi-ip22/ip22-int.c +++ b/arch/mips/sgi-ip22/ip22-int.c @@ -163,32 +163,32 @@ static void __irq_entry indy_buserror_irq(void) static struct irqaction local0_cascade = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "local0 cascade", }; static struct irqaction local1_cascade = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "local1 cascade", }; static struct irqaction buserr = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "Bus Error", }; static struct irqaction map0_cascade = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "mapable0 cascade", }; #ifdef USE_LIO3_IRQ static struct irqaction map1_cascade = { .handler = no_action, - .flags = IRQF_DISABLED, + .flags = IRQF_DISABLED | IRQF_NODELAY, .name = "mapable1 cascade", }; #define SGI_INTERRUPTS SGINT_END diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c index 90c558f..2bd0232 100644 --- a/arch/mips/sni/rm200.c +++ b/arch/mips/sni/rm200.c @@ -361,6 +361,7 @@ void sni_rm200_init_8259A(void) static struct irqaction sni_rm200_irq2 = { .handler = no_action, .name = "cascade", + .flags = IRQF_NODELAY, }; static struct resource sni_rm200_pic1_resource = { diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c index bef0687..e16b1c8 100644 --- a/arch/mips/vr41xx/common/irq.c +++ b/arch/mips/vr41xx/common/irq.c @@ -33,6 +33,7 @@ static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned; static struct irqaction cascade_irqaction = { .handler = no_action, .name = "cascade", + .flags = IRQF_NODELAY, }; int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int)) -- 1.7.0.4