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platform_kernel-5.15
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Merge branch 'irq/affinity' into irq/core 

Merge the export of irq_set_affinity() which is a standalone commit so it
can be pulled into other trees.
This commit is contained in:
Thomas Gleixner 2021-05-19 11:04:47 +02:00
parent c2b1063e8f 4d80d6ca5d
commit 006ae1970a
2 changed files with 34 additions and 34 deletions
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35
include/linux/interrupt.h
View File

@ -322,39 +322,8 @@ struct irq_affinity_desc {
extern cpumask_var_t irq_default_affinity; extern cpumask_var_t irq_default_affinity;
/* Internal implementation. Use the helpers below */ extern int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask);
extern int __irq_set_affinity(unsigned int irq, const struct cpumask *cpumask, extern int irq_force_affinity(unsigned int irq, const struct cpumask *cpumask);
bool force);
/**
* irq_set_affinity - Set the irq affinity of a given irq
* @irq: Interrupt to set affinity
* @cpumask: cpumask
*
* Fails if cpumask does not contain an online CPU
*/
static inline int
irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
{
return __irq_set_affinity(irq, cpumask, false);
}
/**
* irq_force_affinity - Force the irq affinity of a given irq
* @irq: Interrupt to set affinity
* @cpumask: cpumask
*
* Same as irq_set_affinity, but without checking the mask against
* online cpus.
*
* Solely for low level cpu hotplug code, where we need to make per
* cpu interrupts affine before the cpu becomes online.
*/
static inline int
irq_force_affinity(unsigned int irq, const struct cpumask *cpumask)
{
return __irq_set_affinity(irq, cpumask, true);
}
extern int irq_can_set_affinity(unsigned int irq); extern int irq_can_set_affinity(unsigned int irq);
extern int irq_select_affinity(unsigned int irq); extern int irq_select_affinity(unsigned int irq);

33
kernel/irq/manage.c
View File

@ -441,7 +441,8 @@ int irq_update_affinity_desc(unsigned int irq,
return ret; return ret;
} }
int __irq_set_affinity(unsigned int irq, const struct cpumask *mask, bool force) static int __irq_set_affinity(unsigned int irq, const struct cpumask *mask,
bool force)
{ {
struct irq_desc *desc = irq_to_desc(irq); struct irq_desc *desc = irq_to_desc(irq);
unsigned long flags; unsigned long flags;
@ -456,6 +457,36 @@ int __irq_set_affinity(unsigned int irq, const struct cpumask *mask, bool force)
return ret; return ret;
} }
/**
* irq_set_affinity - Set the irq affinity of a given irq
* @irq: Interrupt to set affinity
* @cpumask: cpumask
*
* Fails if cpumask does not contain an online CPU
*/
int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
{
return __irq_set_affinity(irq, cpumask, false);
}
EXPORT_SYMBOL_GPL(irq_set_affinity);
/**
* irq_force_affinity - Force the irq affinity of a given irq
* @irq: Interrupt to set affinity
* @cpumask: cpumask
*
* Same as irq_set_affinity, but without checking the mask against
* online cpus.
*
* Solely for low level cpu hotplug code, where we need to make per
* cpu interrupts affine before the cpu becomes online.
*/
int irq_force_affinity(unsigned int irq, const struct cpumask *cpumask)
{
return __irq_set_affinity(irq, cpumask, true);
}
EXPORT_SYMBOL_GPL(irq_force_affinity);
int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m) int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m)
{ {
unsigned long flags; unsigned long flags;