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MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD
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Mark interrupts with no_action handler, cascade interrupts, low level
interrupts (bus error, halt ..) with IRQF_NO_THREAD to exclude them
from forced threading.

Signed-off-by: Wu Zhangjin <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Cc: Wu Zhangjin <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
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lzufalcon authored and ralfbaechle committed Sep 21, 2011
1 parent 4d85f6a commit 5a4a4ad
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Showing 12 changed files with 24 additions and 10 deletions.
3 changes: 2 additions & 1 deletion arch/mips/ar7/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -98,7 +98,8 @@ 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_NO_THREAD,
};

static void __init ar7_irq_init(int base)
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1 change: 1 addition & 0 deletions arch/mips/bcm63xx/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -222,6 +222,7 @@ static struct irq_chip bcm63xx_external_irq_chip = {
static struct irqaction cpu_ip2_cascade_action = {
.handler = no_action,
.name = "cascade_ip2",
.flags = IRQF_NO_THREAD,
};

void __init arch_init_irq(void)
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1 change: 1 addition & 0 deletions arch/mips/cobalt/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@ asmlinkage void plat_irq_dispatch(void)
static struct irqaction cascade = {
.handler = no_action,
.name = "cascade",
.flags = IRQF_NO_THREAD,
};

void __init arch_init_irq(void)
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4 changes: 4 additions & 0 deletions arch/mips/dec/setup.c
Original file line number Diff line number Diff line change
Expand Up @@ -101,20 +101,24 @@ int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU);
static struct irqaction ioirq = {
.handler = no_action,
.name = "cascade",
.flags = IRQF_NO_THREAD,
};
static struct irqaction fpuirq = {
.handler = no_action,
.name = "fpu",
.flags = IRQF_NO_THREAD,
};

static struct irqaction busirq = {
.flags = IRQF_DISABLED,
.name = "bus error",
.flags = IRQF_NO_THREAD,
};

static struct irqaction haltirq = {
.handler = dec_intr_halt,
.name = "halt",
.flags = IRQF_NO_THREAD,
};


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2 changes: 1 addition & 1 deletion arch/mips/emma/markeins/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -169,7 +169,7 @@ void emma2rh_gpio_irq_init(void)

static struct irqaction irq_cascade = {
.handler = no_action,
.flags = 0,
.flags = IRQF_NO_THREAD,
.name = "cascade",
.dev_id = NULL,
.next = NULL,
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1 change: 1 addition & 0 deletions arch/mips/lasat/interrupt.c
Original file line number Diff line number Diff line change
Expand Up @@ -105,6 +105,7 @@ asmlinkage void plat_irq_dispatch(void)
static struct irqaction cascade = {
.handler = no_action,
.name = "cascade",
.flags = IRQF_NO_THREAD,
};

void __init arch_init_irq(void)
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6 changes: 4 additions & 2 deletions arch/mips/mti-malta/malta-int.c
Original file line number Diff line number Diff line change
Expand Up @@ -350,12 +350,14 @@ 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_NO_THREAD,
};

static struct irqaction corehi_irqaction = {
.handler = no_action,
.name = "CoreHi"
.name = "CoreHi",
.flags = IRQF_NO_THREAD,
};

static msc_irqmap_t __initdata msc_irqmap[] = {
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2 changes: 2 additions & 0 deletions arch/mips/pmc-sierra/msp71xx/msp_irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -109,11 +109,13 @@ asmlinkage void plat_irq_dispatch(struct pt_regs *regs)
static struct irqaction cic_cascade_msp = {
.handler = no_action,
.name = "MSP CIC cascade"
.flags = IRQF_NO_THREAD,
};

static struct irqaction per_cascade_msp = {
.handler = no_action,
.name = "MSP PER cascade"
.flags = IRQF_NO_THREAD,
};

void __init arch_init_irq(void)
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2 changes: 1 addition & 1 deletion arch/mips/pnx8550/common/int.c
Original file line number Diff line number Diff line change
Expand Up @@ -167,7 +167,7 @@ static struct irq_chip level_irq_type = {

static struct irqaction gic_action = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "GIC",
};

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10 changes: 5 additions & 5 deletions arch/mips/sgi-ip22/ip22-int.c
Original file line number Diff line number Diff line change
Expand Up @@ -155,32 +155,32 @@ static void __irq_entry indy_buserror_irq(void)

static struct irqaction local0_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "local0 cascade",
};

static struct irqaction local1_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "local1 cascade",
};

static struct irqaction buserr = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "Bus Error",
};

static struct irqaction map0_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "mapable0 cascade",
};

#ifdef USE_LIO3_IRQ
static struct irqaction map1_cascade = {
.handler = no_action,
.flags = IRQF_DISABLED,
.flags = IRQF_DISABLED | IRQF_NO_THREAD,
.name = "mapable1 cascade",
};
#define SGI_INTERRUPTS SGINT_END
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1 change: 1 addition & 0 deletions arch/mips/sni/rm200.c
Original file line number Diff line number Diff line change
Expand Up @@ -359,6 +359,7 @@ void sni_rm200_init_8259A(void)
static struct irqaction sni_rm200_irq2 = {
.handler = no_action,
.name = "cascade",
.flags = IRQF_NO_THREAD,
};

static struct resource sni_rm200_pic1_resource = {
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1 change: 1 addition & 0 deletions arch/mips/vr41xx/common/irq.c
Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,7 @@ static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned;
static struct irqaction cascade_irqaction = {
.handler = no_action,
.name = "cascade",
.flags = IRQF_NO_THREAD,
};

int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int))
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