diff options
Diffstat (limited to 'kernel/power/Kconfig')
| -rw-r--r-- | kernel/power/Kconfig | 65 |
1 files changed, 35 insertions, 30 deletions
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig index 8e186c678149..ef9b802738a5 100644 --- a/kernel/power/Kconfig +++ b/kernel/power/Kconfig @@ -44,9 +44,30 @@ config PM_VERBOSE ---help--- This option enables verbose messages from the Power Management code. +config CAN_PM_TRACE + def_bool y + depends on PM_DEBUG && PM_SLEEP && EXPERIMENTAL + config PM_TRACE + bool + help + This enables code to save the last PM event point across + reboot. The architecture needs to support this, x86 for + example does by saving things in the RTC, see below. + + The architecture specific code must provide the extern + functions from <linux/resume-trace.h> as well as the + <asm/resume-trace.h> header with a TRACE_RESUME() macro. + + The way the information is presented is architecture- + dependent, x86 will print the information during a + late_initcall. + +config PM_TRACE_RTC bool "Suspend/resume event tracing" - depends on PM_DEBUG && X86 && PM_SLEEP && EXPERIMENTAL + depends on CAN_PM_TRACE + depends on X86 + select PM_TRACE default n ---help--- This enables some cheesy code to save the last PM event point in the @@ -63,7 +84,8 @@ config PM_TRACE config PM_SLEEP_SMP bool - depends on SUSPEND_SMP_POSSIBLE || HIBERNATION_SMP_POSSIBLE + depends on SMP + depends on ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE depends on PM_SLEEP select HOTPLUG_CPU default y @@ -73,46 +95,29 @@ config PM_SLEEP depends on SUSPEND || HIBERNATION default y -config SUSPEND_UP_POSSIBLE - bool - depends on (X86 && !X86_VOYAGER) || PPC || ARM || BLACKFIN || MIPS \ - || SUPERH || FRV - depends on !SMP - default y - -config SUSPEND_SMP_POSSIBLE - bool - depends on (X86 && !X86_VOYAGER) \ - || (PPC && (PPC_PSERIES || PPC_PMAC)) || ARM - depends on SMP - default y - config SUSPEND bool "Suspend to RAM and standby" - depends on PM - depends on SUSPEND_UP_POSSIBLE || SUSPEND_SMP_POSSIBLE + depends on PM && ARCH_SUSPEND_POSSIBLE default y ---help--- Allow the system to enter sleep states in which main memory is powered and thus its contents are preserved, such as the - suspend-to-RAM state (i.e. the ACPI S3 state). + suspend-to-RAM state (e.g. the ACPI S3 state). -config HIBERNATION_UP_POSSIBLE - bool - depends on X86 || PPC64_SWSUSP || PPC32 - depends on !SMP +config SUSPEND_FREEZER + bool "Enable freezer for suspend to RAM/standby" \ + if ARCH_WANTS_FREEZER_CONTROL || BROKEN + depends on SUSPEND default y + help + This allows you to turn off the freezer for suspend. If this is + done, no tasks are frozen for suspend to RAM/standby. -config HIBERNATION_SMP_POSSIBLE - bool - depends on (X86 && !X86_VOYAGER) || PPC64_SWSUSP - depends on SMP - default y + Turning OFF this setting is NOT recommended! If in doubt, say Y. config HIBERNATION bool "Hibernation (aka 'suspend to disk')" - depends on PM && SWAP - depends on HIBERNATION_UP_POSSIBLE || HIBERNATION_SMP_POSSIBLE + depends on PM && SWAP && ARCH_HIBERNATION_POSSIBLE ---help--- Enable the suspend to disk (STD) functionality, which is usually called "hibernation" in user interfaces. STD checkpoints the |