kernel_optimize_test/drivers/base/power
Rafael J. Wysocki e2e3e4e51e PM / Domains: Do not measure start time for "irq safe" devices
The genpd_start_dev() routine used by pm_genpd_runtime_resume()
to put "irq safe" devices into the full power state measures the
time necessary to "start" the device and updates its PM QoS timing
data if necessary.  This may lead to a deadlock if the given device
is a clock source and genpd_start_dev() is invoked from within the
clock source's .enable() routine, which will happen if that routine
uses pm_runtime_get_sync(), for example, to ensure that the device
is operational.

For this reason, introduce a special routine analogous to
genpd_start_dev(), called genpd_start_dev_no_timing(), that doesn't
carry out the time measurement, and make pm_genpd_runtime_resume()
use it instead of genpd_start_dev() to power up "irq safe" devices.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2012-09-04 01:36:04 +02:00
..
clock_ops.c PM: Make dev_pm_get_subsys_data() always return 0 on success 2012-08-08 20:49:33 +02:00
common.c PM / Domains: Move syscore flag from subsys data to struct device 2012-09-04 01:36:04 +02:00
domain_governor.c PM / Domains: Fix computation of maximum domain off time 2012-05-11 21:11:44 +02:00
domain.c PM / Domains: Do not measure start time for "irq safe" devices 2012-09-04 01:36:04 +02:00
generic_ops.c PM / Sleep: Introduce generic callbacks for new device PM phases 2012-01-29 20:38:41 +01:00
main.c PM / Domains: Move syscore flag from subsys data to struct device 2012-09-04 01:36:04 +02:00
Makefile PM / Domains: Add device stop governor function (v4) 2011-12-01 21:47:40 +01:00
opp.c device.h: cleanup users outside of linux/include (C files) 2012-03-11 14:27:37 -04:00
power.h PM / Runtime: Allow helpers to be called by early platform drivers 2012-09-04 01:36:03 +02:00
qos.c PM / QoS: Use NULL pointer instead of plain integer in qos.c 2012-07-19 00:02:36 +02:00
runtime.c PM / Domains: Move syscore flag from subsys data to struct device 2012-09-04 01:36:04 +02:00
sysfs.c PM / Sleep: Fix build warning in sysfs.c for CONFIG_PM_SLEEP unset 2012-07-12 22:40:02 +02:00
trace.c drivers/base: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required. 2011-10-31 19:31:38 -04:00
wakeup.c PM / Sleep: Add user space interface for manipulating wakeup sources, v3 2012-05-01 21:26:05 +02:00