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| author | Thomas Gleixner <tglx@linutronix.de> | 2016-07-04 17:39:24 +0900 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-07-04 12:25:13 +0200 |
| commit | 06ee6d571f0e350253a8fc3492316b2be007fae2 (patch) | |
| tree | bcabd269ee107044375a331d82334b95c28f915f /include | |
| parent | 9c2555835bb3d34dfac52a0be943dcc4bedd650f (diff) | |
| download | linux-stable-06ee6d571f0e350253a8fc3492316b2be007fae2.tar.gz linux-stable-06ee6d571f0e350253a8fc3492316b2be007fae2.tar.bz2 linux-stable-06ee6d571f0e350253a8fc3492316b2be007fae2.zip | |
genirq: Add affinity hint to irq allocation
Add an extra argument to the irq(domain) allocation functions, so we can hand
down affinity hints to the allocator. Thats necessary to implement proper
support for multiqueue devices.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-block@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-nvme@lists.infradead.org
Cc: axboe@fb.com
Cc: agordeev@redhat.com
Link: http://lkml.kernel.org/r/1467621574-8277-4-git-send-email-hch@lst.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/irq.h | 4 | ||||
| -rw-r--r-- | include/linux/irqdomain.h | 9 |
2 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h index f6074813688d..39ce46ac5c18 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -708,11 +708,11 @@ static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d) unsigned int arch_dynirq_lower_bound(unsigned int from); int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, - struct module *owner); + struct module *owner, const struct cpumask *affinity); /* use macros to avoid needing export.h for THIS_MODULE */ #define irq_alloc_descs(irq, from, cnt, node) \ - __irq_alloc_descs(irq, from, cnt, node, THIS_MODULE) + __irq_alloc_descs(irq, from, cnt, node, THIS_MODULE, NULL) #define irq_alloc_desc(node) \ irq_alloc_descs(-1, 0, 1, node) diff --git a/include/linux/irqdomain.h b/include/linux/irqdomain.h index f1f36e04d885..1aee0fbe900e 100644 --- a/include/linux/irqdomain.h +++ b/include/linux/irqdomain.h @@ -39,6 +39,7 @@ struct irq_domain; struct of_device_id; struct irq_chip; struct irq_data; +struct cpumask; /* Number of irqs reserved for a legacy isa controller */ #define NUM_ISA_INTERRUPTS 16 @@ -217,7 +218,8 @@ extern struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec, enum irq_domain_bus_token bus_token); extern void irq_set_default_host(struct irq_domain *host); extern int irq_domain_alloc_descs(int virq, unsigned int nr_irqs, - irq_hw_number_t hwirq, int node); + irq_hw_number_t hwirq, int node, + const struct cpumask *affinity); static inline struct fwnode_handle *of_node_to_fwnode(struct device_node *node) { @@ -389,7 +391,7 @@ static inline struct irq_domain *irq_domain_add_hierarchy(struct irq_domain *par extern int __irq_domain_alloc_irqs(struct irq_domain *domain, int irq_base, unsigned int nr_irqs, int node, void *arg, - bool realloc); + bool realloc, const struct cpumask *affinity); extern void irq_domain_free_irqs(unsigned int virq, unsigned int nr_irqs); extern void irq_domain_activate_irq(struct irq_data *irq_data); extern void irq_domain_deactivate_irq(struct irq_data *irq_data); @@ -397,7 +399,8 @@ extern void irq_domain_deactivate_irq(struct irq_data *irq_data); static inline int irq_domain_alloc_irqs(struct irq_domain *domain, unsigned int nr_irqs, int node, void *arg) { - return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false); + return __irq_domain_alloc_irqs(domain, -1, nr_irqs, node, arg, false, + NULL); } extern int irq_domain_alloc_irqs_recursive(struct irq_domain *domain, |