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Diffstat (limited to 'arch/powerpc/kernel/irq.c')
-rw-r--r--arch/powerpc/kernel/irq.c123
1 files changed, 31 insertions, 92 deletions
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index ce557f6f00fc..f621b7d2d869 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -195,7 +195,7 @@ notrace void arch_local_irq_restore(unsigned long en)
EXPORT_SYMBOL(arch_local_irq_restore);
#endif /* CONFIG_PPC64 */
-static int show_other_interrupts(struct seq_file *p, int prec)
+int arch_show_interrupts(struct seq_file *p, int prec)
{
int j;
@@ -231,63 +231,6 @@ static int show_other_interrupts(struct seq_file *p, int prec)
return 0;
}
-int show_interrupts(struct seq_file *p, void *v)
-{
- unsigned long flags, any_count = 0;
- int i = *(loff_t *) v, j, prec;
- struct irqaction *action;
- struct irq_desc *desc;
-
- if (i > nr_irqs)
- return 0;
-
- for (prec = 3, j = 1000; prec < 10 && j <= nr_irqs; ++prec)
- j *= 10;
-
- if (i == nr_irqs)
- return show_other_interrupts(p, prec);
-
- /* print header */
- if (i == 0) {
- seq_printf(p, "%*s", prec + 8, "");
- for_each_online_cpu(j)
- seq_printf(p, "CPU%-8d", j);
- seq_putc(p, '\n');
- }
-
- desc = irq_to_desc(i);
- if (!desc)
- return 0;
-
- raw_spin_lock_irqsave(&desc->lock, flags);
- for_each_online_cpu(j)
- any_count |= kstat_irqs_cpu(i, j);
- action = desc->action;
- if (!action && !any_count)
- goto out;
-
- seq_printf(p, "%*d: ", prec, i);
- for_each_online_cpu(j)
- seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
-
- if (desc->chip)
- seq_printf(p, " %-16s", desc->chip->name);
- else
- seq_printf(p, " %-16s", "None");
- seq_printf(p, " %-8s", (desc->status & IRQ_LEVEL) ? "Level" : "Edge");
-
- if (action) {
- seq_printf(p, " %s", action->name);
- while ((action = action->next) != NULL)
- seq_printf(p, ", %s", action->name);
- }
-
- seq_putc(p, '\n');
-out:
- raw_spin_unlock_irqrestore(&desc->lock, flags);
- return 0;
-}
-
/*
* /proc/stat helpers
*/
@@ -303,30 +246,37 @@ u64 arch_irq_stat_cpu(unsigned int cpu)
}
#ifdef CONFIG_HOTPLUG_CPU
-void fixup_irqs(const struct cpumask *map)
+void migrate_irqs(void)
{
struct irq_desc *desc;
unsigned int irq;
static int warned;
cpumask_var_t mask;
+ const struct cpumask *map = cpu_online_mask;
alloc_cpumask_var(&mask, GFP_KERNEL);
for_each_irq(irq) {
+ struct irq_data *data;
+ struct irq_chip *chip;
+
desc = irq_to_desc(irq);
if (!desc)
continue;
- if (desc->status & IRQ_PER_CPU)
+ data = irq_desc_get_irq_data(desc);
+ if (irqd_is_per_cpu(data))
continue;
- cpumask_and(mask, desc->affinity, map);
+ chip = irq_data_get_irq_chip(data);
+
+ cpumask_and(mask, data->affinity, map);
if (cpumask_any(mask) >= nr_cpu_ids) {
printk("Breaking affinity for irq %i\n", irq);
cpumask_copy(mask, map);
}
- if (desc->chip->set_affinity)
- desc->chip->set_affinity(irq, mask);
+ if (chip->irq_set_affinity)
+ chip->irq_set_affinity(data, mask, true);
else if (desc->action && !(warned++))
printk("Cannot set affinity for irq %i\n", irq);
}
@@ -612,7 +562,7 @@ struct irq_host *irq_alloc_host(struct device_node *of_node,
smp_wmb();
/* Clear norequest flags */
- irq_to_desc(i)->status &= ~IRQ_NOREQUEST;
+ irq_clear_status_flags(i, IRQ_NOREQUEST);
/* Legacy flags are left to default at this point,
* one can then use irq_create_mapping() to
@@ -678,16 +628,15 @@ void irq_set_virq_count(unsigned int count)
static int irq_setup_virq(struct irq_host *host, unsigned int virq,
irq_hw_number_t hwirq)
{
- struct irq_desc *desc;
+ int res;
- desc = irq_to_desc_alloc_node(virq, 0);
- if (!desc) {
+ res = irq_alloc_desc_at(virq, 0);
+ if (res != virq) {
pr_debug("irq: -> allocating desc failed\n");
goto error;
}
- /* Clear IRQ_NOREQUEST flag */
- desc->status &= ~IRQ_NOREQUEST;
+ irq_clear_status_flags(virq, IRQ_NOREQUEST);
/* map it */
smp_wmb();
@@ -696,11 +645,13 @@ static int irq_setup_virq(struct irq_host *host, unsigned int virq,
if (host->ops->map(host, virq, hwirq)) {
pr_debug("irq: -> mapping failed, freeing\n");
- goto error;
+ goto errdesc;
}
return 0;
+errdesc:
+ irq_free_descs(virq, 1);
error:
irq_free_virt(virq, 1);
return -1;
@@ -820,8 +771,8 @@ unsigned int irq_create_of_mapping(struct device_node *controller,
/* Set type if specified and different than the current one */
if (type != IRQ_TYPE_NONE &&
- type != (irq_to_desc(virq)->status & IRQF_TRIGGER_MASK))
- set_irq_type(virq, type);
+ type != (irqd_get_trigger_type(irq_get_irq_data(virq))))
+ irq_set_irq_type(virq, type);
return virq;
}
EXPORT_SYMBOL_GPL(irq_create_of_mapping);
@@ -844,7 +795,7 @@ void irq_dispose_mapping(unsigned int virq)
return;
/* remove chip and handler */
- set_irq_chip_and_handler(virq, NULL, NULL);
+ irq_set_chip_and_handler(virq, NULL, NULL);
/* Make sure it's completed */
synchronize_irq(virq);
@@ -879,9 +830,9 @@ void irq_dispose_mapping(unsigned int virq)
smp_mb();
irq_map[virq].hwirq = host->inval_irq;
- /* Set some flags */
- irq_to_desc(virq)->status |= IRQ_NOREQUEST;
+ irq_set_status_flags(virq, IRQ_NOREQUEST);
+ irq_free_descs(virq, 1);
/* Free it */
irq_free_virt(virq, 1);
}
@@ -1074,21 +1025,6 @@ void irq_free_virt(unsigned int virq, unsigned int count)
int arch_early_irq_init(void)
{
- struct irq_desc *desc;
- int i;
-
- for (i = 0; i < NR_IRQS; i++) {
- desc = irq_to_desc(i);
- if (desc)
- desc->status |= IRQ_NOREQUEST;
- }
-
- return 0;
-}
-
-int arch_init_chip_data(struct irq_desc *desc, int node)
-{
- desc->status |= IRQ_NOREQUEST;
return 0;
}
@@ -1159,11 +1095,14 @@ static int virq_debug_show(struct seq_file *m, void *private)
raw_spin_lock_irqsave(&desc->lock, flags);
if (desc->action && desc->action->handler) {
+ struct irq_chip *chip;
+
seq_printf(m, "%5d ", i);
seq_printf(m, "0x%05lx ", virq_to_hw(i));
- if (desc->chip && desc->chip->name)
- p = desc->chip->name;
+ chip = irq_desc_get_chip(desc);
+ if (chip && chip->name)
+ p = chip->name;
else
p = none;
seq_printf(m, "%-15s ", p);
generated by cgit v1.2.3 (git 2.0.4) at 2025-01-26 08:51:31 +0000