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OpenCloudOS-Kernel
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genirq: Consolidate IRQ_DISABLED 

Handle IRQ_DISABLED consistent.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2011-02-04 10:17:52 +01:00
parent 50f7c03275
commit 3aae994fb0
4 changed files with 14 additions and 16 deletions
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14
kernel/irq/chip.c
View File

@ -194,11 +194,14 @@ EXPORT_SYMBOL_GPL(set_irq_nested_thread);
int irq_startup(struct irq_desc *desc)
{
desc->status &= ~(IRQ_MASKED | IRQ_DISABLED);
desc->status &= ~IRQ_DISABLED;
desc->depth = 0;
if (desc->irq_data.chip->irq_startup)
return desc->irq_data.chip->irq_startup(&desc->irq_data);
if (desc->irq_data.chip->irq_startup) {
int ret = desc->irq_data.chip->irq_startup(&desc->irq_data);
desc->status &= ~IRQ_MASKED;
return ret;
}
irq_enable(desc);
return 0;
@ -206,7 +209,7 @@ int irq_startup(struct irq_desc *desc)
void irq_shutdown(struct irq_desc *desc)
{
desc->status |= IRQ_MASKED | IRQ_DISABLED;
desc->status |= IRQ_DISABLED;
desc->depth = 1;
if (desc->irq_data.chip->irq_shutdown)
desc->irq_data.chip->irq_shutdown(&desc->irq_data);
@ -214,10 +217,12 @@ void irq_shutdown(struct irq_desc *desc)
desc->irq_data.chip->irq_disable(&desc->irq_data);
else
desc->irq_data.chip->irq_mask(&desc->irq_data);
desc->status |= IRQ_MASKED;
}
void irq_enable(struct irq_desc *desc)
{
desc->status &= ~IRQ_DISABLED;
if (desc->irq_data.chip->irq_enable)
desc->irq_data.chip->irq_enable(&desc->irq_data);
else
@ -227,6 +232,7 @@ void irq_enable(struct irq_desc *desc)
void irq_disable(struct irq_desc *desc)
{
desc->status |= IRQ_DISABLED;
if (desc->irq_data.chip->irq_disable) {
desc->irq_data.chip->irq_disable(&desc->irq_data);
desc->status |= IRQ_MASKED;

9
kernel/irq/manage.c
View File

@ -329,10 +329,8 @@ void __disable_irq(struct irq_desc *desc, unsigned int irq, bool suspend)
desc->status |= IRQ_SUSPENDED;
}
if (!desc->depth++) {
desc->status |= IRQ_DISABLED;
if (!desc->depth++)
irq_disable(desc);
}
}
/**
@ -407,12 +405,11 @@ void __enable_irq(struct irq_desc *desc, unsigned int irq, bool resume)
WARN(1, KERN_WARNING "Unbalanced enable for IRQ %d\n", irq);
break;
case 1: {
unsigned int status = desc->status & ~IRQ_DISABLED;
if (desc->status & IRQ_SUSPENDED)
goto err_out;
/* Prevent probing on this irq: */
desc->status = status | IRQ_NOPROBE;
desc->status |= IRQ_NOPROBE;
irq_enable(desc);
check_irq_resend(desc, irq);
/* fall-through */
}

5
kernel/irq/resend.c
View File

@ -55,11 +55,6 @@ static DECLARE_TASKLET(resend_tasklet, resend_irqs, 0);
*/
void check_irq_resend(struct irq_desc *desc, unsigned int irq)
{
/*
* Make sure the interrupt is enabled, before resending it:
*/
irq_enable(desc);
/*
* We do not resend level type interrupts. Level type
* interrupts are resent by hardware when they are still

2
kernel/irq/spurious.c
View File

@ -301,7 +301,7 @@ void note_interrupt(unsigned int irq, struct irq_desc *desc,
* Now kill the IRQ
*/
printk(KERN_EMERG "Disabling IRQ #%d\n", irq);
desc->status |= IRQ_DISABLED | IRQ_SPURIOUS_DISABLED;
desc->status |= IRQ_SPURIOUS_DISABLED;
desc->depth++;
irq_disable(desc);