diff options
Diffstat (limited to 'include/linux/interrupt.h')
| -rw-r--r-- | include/linux/interrupt.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index b6683f0ffc9f..53144e78a369 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -232,6 +232,18 @@ struct irq_affinity_notify { void (*release)(struct kref *ref); }; +/** + * struct irq_affinity - Description for automatic irq affinity assignements + * @pre_vectors: Don't apply affinity to @pre_vectors at beginning of + * the MSI(-X) vector space + * @post_vectors: Don't apply affinity to @post_vectors at end of + * the MSI(-X) vector space + */ +struct irq_affinity { + int pre_vectors; + int post_vectors; +}; + #if defined(CONFIG_SMP) extern cpumask_var_t irq_default_affinity; @@ -278,7 +290,8 @@ extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m); extern int irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify); -struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs); +struct cpumask *irq_create_affinity_masks(int nvec, const struct irq_affinity *affd); +int irq_calc_affinity_vectors(int maxvec, const struct irq_affinity *affd); #else /* CONFIG_SMP */ @@ -311,11 +324,18 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify) return 0; } -static inline struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs) +static inline struct cpumask * +irq_create_affinity_masks(int nvec, const struct irq_affinity *affd) { - *nr_vecs = 1; return NULL; } + +static inline int +irq_calc_affinity_vectors(int maxvec, const struct irq_affinity *affd) +{ + return maxvec; +} + #endif /* CONFIG_SMP */ /* |