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Chris Metcalf 6727ad9e20 nmi_backtrace: generate one-line reports for idle cpus 
When doing an nmi backtrace of many cores, most of which are idle, the
output is a little overwhelming and very uninformative.  Suppress
messages for cpus that are idling when they are interrupted and just
emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN".

We do this by grouping all the cpuidle code together into a new
.cpuidle.text section, and then checking the address of the interrupted
PC to see if it lies within that section.

This commit suitably tags x86 and tile idle routines, and only adds in
the minimal framework for other architectures.

Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Thompson <daniel.thompson@linaro.org> [arm]
Tested-by: Petr Mladek <pmladek@suse.com>
Cc: Aaron Tomlin <atomlin@redhat.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-07 18:46:30 -07:00
..
acpica ACPICA: Parser: Fix a regression in LoadTable support 2016-09-24 02:16:53 +02:00
apei PCI changes for the v4.9 merge window: 2016-10-07 11:46:37 -07:00
arm64 ACPI: Add new IORT functions to support MSI domain handling 2016-09-12 20:32:40 +01:00
dptf ACPI / DPTF: move int340x_thermal.c to the DPTF folder 2016-07-21 13:42:46 +02:00
nfit nfit: fail DSMs that return non-zero status by default 2016-09-21 09:35:19 -07:00
pmic ACPI / PMIC: remove modular references from non-modular code 2016-07-16 03:03:14 +02:00
ac.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_amba.c ACPI / amba: Remove CLK_IS_ROOT 2016-04-27 23:42:57 +02:00
acpi_apd.c ACPI / APD: constify local structures 2016-09-13 03:13:30 +02:00
acpi_cmos_rtc.c char/genrtc: x86: remove remnants of asm/rtc.h 2016-06-04 00:20:07 +02:00
acpi_configfs.c ACPI: Rename configfs.c to acpi_configfs.c to prevent link error 2016-07-11 15:13:36 +02:00
acpi_dbg.c ACPI / debugger: Fix regression introduced by IS_ERR_VALUE() removal 2016-07-05 23:02:34 +02:00
acpi_extlog.c
acpi_ipmi.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_lpat.c ACPI / lpat: make it explicitly non-modular 2016-07-16 03:08:10 +02:00
acpi_lpss.c ACPI / LPSS: Provide build-in properties of the UART 2016-08-31 01:18:57 +02:00
acpi_memhotplug.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
acpi_pad.c ACPI / PAD: power_saving_thread() is not freezable 2015-10-26 04:42:54 +01:00
acpi_platform.c ACPI / platform: Pay attention to parent device's resources 2016-09-17 01:17:17 +02:00
acpi_pnp.c ACPI / PNP: constify device IDs 2016-01-04 22:10:30 +01:00
acpi_processor.c acpi: Validate processor id when mapping the processor 2016-09-21 21:18:40 +02:00
acpi_video.c ACPI / video: skip evaluating _DOD when it does not exist 2016-06-22 02:00:04 +02:00
acpi_watchdog.c ACPI / watchdog: Add support for WDAT hardware watchdog 2016-09-24 02:10:04 +02:00
battery.c ACPI / battery: Add sysfs representation after checking _BST 2016-08-31 00:35:16 +02:00
battery.h
bgrt.c drivers/acpi: make bgrt driver explicitly non-modular 2016-03-09 23:46:07 +01:00
blacklist.c ACPI / osi: Collect _OSI handling into one single file 2016-05-05 00:13:53 +02:00
bus.c Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 19:10:15 -07:00
button.c ACPI / button: Fix an issue in button.lid_init_state=ignore mode 2016-08-31 01:06:20 +02:00
cm_sbs.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
container.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
cppc_acpi.c ACPI / CPPC: Support PCC with interrupt flag 2016-09-17 01:14:24 +02:00
custom_method.c
debugfs.c ACPI: fix acpi_debugfs_init prototype 2015-08-07 02:55:18 +02:00
device_pm.c ACPI / PM: Export acpi_device_fix_up_power() 2016-05-20 15:54:01 +02:00
device_sysfs.c ACPI / device_sysfs: Clean up checkpatch errors 2016-05-04 23:47:32 +02:00
dock.c ACPI / dock: make dock explicitly non-modular 2016-07-16 03:08:08 +02:00
ec.c ACPI / EC: Fix issues related to boot_ec 2016-09-10 02:33:50 +02:00
ec_sys.c ACPI / EC: Deny write access unless requested by module param 2016-03-09 23:26:15 +01:00
event.c
evged.c ACPI / GED: make evged.c explicitly non-modular 2016-05-09 22:59:25 +02:00
fan.c ACPI / fan: Make struct dev_pm_ops const 2016-03-09 23:23:21 +01:00
glue.c Merge branch 'acpi-pci' 2015-11-07 01:30:10 +01:00
gsi.c ACPI: Rename acpi_gsi_get_irq_type to acpi_dev_get_irq_type and export symbol 2016-01-01 03:20:25 +01:00
hed.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
internal.h Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 15:36:06 -07:00
ioapic.c x86/ioapic: Fix IOAPIC failing to request resource 2016-08-18 11:45:19 +02:00
Kconfig TTY/Serial patches for 4.9-rc1 2016-10-03 20:11:49 -07:00
Makefile TTY/Serial patches for 4.9-rc1 2016-10-03 20:11:49 -07:00
numa.c ACPI / NUMA: Enable ACPI based NUMA on ARM64 2016-06-22 01:36:59 +02:00
nvs.c
osi.c ACPI / osi: Collect _OSI handling into one single file 2016-05-05 00:13:53 +02:00
osl.c treewide: replace obsolete _refok by __ref 2016-08-02 17:31:41 -04:00
pci_irq.c ACPI / PCI: fix GIC irq model default PCI IRQ polarity 2016-09-10 02:50:50 +02:00
pci_link.c ACPI,PCI,IRQ: separate ISA penalty calculation 2016-07-02 01:38:34 +02:00
pci_mcfg.c PCI/ACPI: Add generic MCFG table handling 2016-06-10 18:27:59 -05:00
pci_root.c x86/ioapic: Support hot-removal of IOAPICs present during boot 2016-08-18 11:45:18 +02:00
pci_slot.c ACPI / PCI: make pci_slot explicitly non-modular 2016-07-16 03:05:29 +02:00
power.c Merge branch 'acpi-pm' 2015-09-01 03:38:43 +02:00
proc.c ACPI: change acpi_sleep_proc_init() to return void 2015-09-15 03:03:15 +02:00
processor_core.c acpi: Fix broken error check in map_processor() 2016-09-23 18:04:56 +02:00
processor_driver.c Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-10-03 19:43:08 -07:00
processor_idle.c nmi_backtrace: generate one-line reports for idle cpus 2016-10-07 18:46:30 -07:00
processor_pdc.c ACPI / processor: Introduce invalid_logical_cpuid() 2015-05-13 23:28:14 +02:00
processor_perflib.c Merge branch 'pm-cpufreq' 2015-09-01 15:52:35 +02:00
processor_thermal.c ACPI: Remove FSF mailing addresses 2015-07-08 02:27:32 +02:00
processor_throttling.c ACPI/processor: Convert to hotplug state machine 2016-09-19 21:44:29 +02:00
property.c ACPI / property: fix data node parsing in acpi_get_next_subnode() 2016-03-17 03:06:38 +01:00
reboot.c
resource.c PCI: ACPI: IA64: fix IO port generic range check 2016-03-22 23:07:49 +01:00
sbs.c ACPI / SBS: fix inconsistent indenting inside if statement 2016-01-04 22:14:27 +01:00
sbshc.c Revert "ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook" 2015-11-16 23:26:45 +01:00
sbshc.h
scan.c Merge branches 'acpi-wdat' and 'acpi-ec' 2016-10-02 01:40:07 +02:00
sleep.c Merge branches 'acpi-wdat' and 'acpi-ec' 2016-10-02 01:40:07 +02:00
sleep.h ACPICA: Drop Linux-specific waking vector functions 2016-01-04 22:05:20 +01:00
spcr.c ACPI: parse SPCR and enable matching console 2016-09-28 17:46:46 +02:00
sysfs.c ACPI / sysfs: Update sysfs signature handling code 2016-09-17 01:12:34 +02:00
tables.c ACPI / tables: Remove duplicated include from tables.c 2016-09-17 01:03:32 +02:00
thermal.c ACPI / thermal: Remove create_workqueue() 2016-06-22 02:12:56 +02:00
utils.c nfit: make DIMM DSMs optional 2016-07-19 12:32:39 -07:00
video_detect.c ACPI / video: Thinkpad X201 Tablet needs video_detect_force_video 2016-06-22 01:59:03 +02:00
wakeup.c