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authorLinus Torvalds <torvalds@linux-foundation.org>2018-12-25 15:17:51 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-12-25 15:17:51 -0800
commite4b99d415c3908581d4703203e1e805f043a3e71 (patch)
tree8f5f88af8e3f583840ec40312466a36ae64a9a30 /include/linux/interrupt.h
parentd8924c0d76aaa52e4811b5c64115d9a7f36cc73a (diff)
parentc410abbbacb9b378365ba17a30df08b4b9eec64f (diff)
downloadlwn-e4b99d415c3908581d4703203e1e805f043a3e71.tar.gz
lwn-e4b99d415c3908581d4703203e1e805f043a3e71.zip
Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner: "The interrupt department provides: Core updates: - Better spreading to NUMA nodes in the affinity management - Support for more than one set of interrupts to spread out to allow separate queues for separate functionality of a single device. - Decouple the non queue interrupts from being managed. Those are usually general interrupts for error handling etc. and those should never be shut down. This also a preparation to utilize the spreading mechanism for initial spreading of non-managed interrupts later. - Make the single CPU target selection in the matrix allocator more balanced so interrupts won't accumulate on single CPUs in certain situations. - A large spell checking patch so we don't end up fixing single typos over and over. Driver updates: - A bunch of new irqchip drivers (RDA8810PL, Madera, imx-irqsteer) - Updates for the 8MQ, F1C100s platform drivers - A number of SPDX cleanups - A workaround for a very broken GICv3 implementation on msm8996 which sports a botched register set. - A platform-msi fix to prevent memory leakage - Various cleanups" * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits) genirq/affinity: Add is_managed to struct irq_affinity_desc genirq/core: Introduce struct irq_affinity_desc genirq/affinity: Remove excess indentation irqchip/stm32: protect configuration registers with hwspinlock dt-bindings: interrupt-controller: stm32: Document hwlock properties irqchip: Add driver for imx-irqsteer controller dt-bindings/irq: Add binding for Freescale IRQSTEER multiplexer irqchip: Add driver for Cirrus Logic Madera codecs genirq: Fix various typos in comments irqchip/irq-imx-gpcv2: Add IRQCHIP_DECLARE for i.MX8MQ compatible irqchip/irq-rda-intc: Fix return value check in rda8810_intc_init() irqchip/irq-imx-gpcv2: Silence "fall through" warning irqchip/gic-v3: Add quirk for msm8996 broken registers irqchip/gic: Add support to device tree based quirks dt-bindings/gic-v3: Add msm8996 compatible string irqchip/sun4i: Add support for Allwinner ARMv5 F1C100s irqchip/sun4i: Move IC specific register offsets to struct irqchip/sun4i: Add a struct to hold global variables dt-bindings: interrupt-controller: Add suniv interrupt-controller irqchip: Add RDA8810PL interrupt driver ...
Diffstat (limited to 'include/linux/interrupt.h')
-rw-r--r--include/linux/interrupt.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 1d6711c28271..c672f34235e7 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -247,10 +247,23 @@ struct irq_affinity_notify {
* the MSI(-X) vector space
* @post_vectors: Don't apply affinity to @post_vectors at end of
* the MSI(-X) vector space
+ * @nr_sets: Length of passed in *sets array
+ * @sets: Number of affinitized sets
*/
struct irq_affinity {
int pre_vectors;
int post_vectors;
+ int nr_sets;
+ int *sets;
+};
+
+/**
+ * struct irq_affinity_desc - Interrupt affinity descriptor
+ * @mask: cpumask to hold the affinity assignment
+ */
+struct irq_affinity_desc {
+ struct cpumask mask;
+ unsigned int is_managed : 1;
};
#if defined(CONFIG_SMP)
@@ -299,7 +312,9 @@ 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_masks(int nvec, const struct irq_affinity *affd);
+struct irq_affinity_desc *
+irq_create_affinity_masks(int nvec, const struct irq_affinity *affd);
+
int irq_calc_affinity_vectors(int minvec, int maxvec, const struct irq_affinity *affd);
#else /* CONFIG_SMP */
@@ -333,7 +348,7 @@ irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
return 0;
}
-static inline struct cpumask *
+static inline struct irq_affinity_desc *
irq_create_affinity_masks(int nvec, const struct irq_affinity *affd)
{
return NULL;