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alistair23-linux/kernel/irq
Laurent Vivier 1f72986fc9 genirq/irqdomain: Add an irq_create_mapping_affinity() function
commit bb4c6910c8 upstream.

There is currently no way to convey the affinity of an interrupt
via irq_create_mapping(), which creates issues for devices that
expect that affinity to be managed by the kernel.

In order to sort this out, rename irq_create_mapping() to
irq_create_mapping_affinity() with an additional affinity parameter that
can be passed down to irq_domain_alloc_descs().

irq_create_mapping() is re-implemented as a wrapper around
irq_create_mapping_affinity().

No functional change.

Fixes: e75eafb9b0 ("genirq/msi: Switch to new irq spreading infrastructure")
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kurz <groug@kaod.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20201126082852.1178497-2-lvivier@redhat.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-11 13:23:30 +01:00
..
Kconfig genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY 2020-11-18 19:20:16 +01:00
Makefile genirq/timings: Add selftest for circular array 2019-06-12 10:47:04 +02:00
affinity.c genirq/affinity: Remove const qualifier from node_to_cpumask argument 2019-08-28 12:20:43 +02:00
autoprobe.c genirq: Delay deactivation in free_irq() 2019-07-03 10:12:28 +02:00
chip.c Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-08 11:22:57 -07:00
cpuhotplug.c genirq: Delay deactivation in free_irq() 2019-07-03 10:12:28 +02:00
debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk 2018-02-01 13:36:15 -08:00
debugfs.c genirq/debugfs: Add missing sanity checks to interrupt injection 2020-04-17 10:50:11 +02:00
devres.c genirq/devres: Use struct_size() in devm_kzalloc() 2019-04-16 21:54:03 +02:00
dummychip.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
generic-chip.c genirq: Add missing SPDX identifiers 2018-03-20 14:23:28 +01:00
handle.c treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively 2019-04-09 14:19:06 +02:00
internals.h genirq/proc: Reject invalid affinity masks (again) 2020-02-28 17:22:26 +01:00
ipi.c genirq: Fix various typos in comments 2018-12-18 14:22:28 +01:00
irq_sim.c irq/irq_sim: add irq_set_type() callback 2019-02-19 17:42:28 +01:00
irqdesc.c genirq: Properly pair kobject_del() with kobject_add() 2019-08-19 21:41:19 +02:00
irqdomain.c genirq/irqdomain: Add an irq_create_mapping_affinity() function 2020-12-11 13:23:30 +01:00
manage.c genirq/affinity: Make affinity setting if activated opt-in 2020-08-21 13:05:20 +02:00
matrix.c genirq/matrix: Deal with the sillyness of for_each_cpu() on UP 2020-09-03 11:27:06 +02:00
migration.c genirq/migration: Avoid out of line call if pending is not set 2018-06-06 15:18:20 +02:00
msi.c x86/apic/msi: Plug non-maskable MSI affinity race 2020-02-11 04:35:54 -08:00
pm.c genirq/PM: Always unlock IRQ descriptor in rearm_wake_irq() 2020-08-21 13:05:20 +02:00
proc.c genirq/proc: Reject invalid affinity masks (again) 2020-02-28 17:22:26 +01:00
resend.c genirq: Prevent NULL pointer dereference in resend_irqs() 2019-09-05 21:31:14 +02:00
settings.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
spurious.c treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively 2019-04-09 14:19:06 +02:00
timings.c genirq/timings: Add selftest for next event computation 2019-06-12 10:47:05 +02:00