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linux-2.6/kernel/irq
Rafael J. Wysocki 0a0c5168df PM: Introduce functions for suspending and resuming device interrupts
Introduce helper functions allowing us to prevent device drivers from
getting any interrupts (without disabling interrupts on the CPU)
during suspend (or hibernation) and to make them start to receive
interrupts again during the subsequent resume.  These functions make it
possible to keep timer interrupts enabled while the "late" suspend and
"early" resume callbacks provided by device drivers are being
executed.  In turn, this allows device drivers' "late" suspend and
"early" resume callbacks to sleep, execute ACPI callbacks etc.

The functions introduced here will be used to rework the handling of
interrupts during suspend (hibernation) and resume.  Namely,
interrupts will only be disabled on the CPU right before suspending
sysdevs, while device drivers will be prevented from receiving
interrupts, with the help of the new helper function, before their
"late" suspend callbacks run (and analogously during resume).

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Ingo Molnar <mingo@elte.hu>
2009-03-30 21:46:54 +02:00
..
Makefile PM: Introduce functions for suspending and resuming device interrupts 2009-03-30 21:46:54 +02:00
autoprobe.c async: Asynchronous function calls to speed up kernel boot 2009-01-07 08:45:46 -08:00
chip.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
devres.c kernel: explicitly include required header files under kernel/ 2008-04-29 08:06:04 -07:00
handle.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
internals.h PM: Introduce functions for suspending and resuming device interrupts 2009-03-30 21:46:54 +02:00
manage.c PM: Introduce functions for suspending and resuming device interrupts 2009-03-30 21:46:54 +02:00
migration.c cpumask: update irq_desc to use cpumask_var_t 2009-01-11 19:12:46 +01:00
numa_migrate.c Merge branch 'core/percpu' into percpu-cpumask-x86-for-linus-2 2009-03-27 17:28:43 +01:00
pm.c PM: Introduce functions for suspending and resuming device interrupts 2009-03-30 21:46:54 +02:00
proc.c cpumask: update irq_desc to use cpumask_var_t 2009-01-11 19:12:46 +01:00
resend.c generic: sparse irqs: use irq_desc() together with dyn_array, instead of irq_desc[] 2008-10-16 16:52:29 +02:00
spurious.c irq: provide debug_poll_all_shared_irqs() method under CONFIG_DEBUG_SHIRQ 2009-01-16 17:46:49 +01:00