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
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boot	metag: enable building of all dtbs	2015-10-27 16:12:16 -05:00
configs	metag: minimal TZ1090 (Comet) SoC infrastructure	2013-06-13 12:14:07 +01:00
include	metag: copy_from_user() should zero the destination on access_ok() failure	2016-09-13 17:49:40 -04:00
kernel	nmi_backtrace: generate one-line reports for idle cpus	2016-10-07 18:46:30 -07:00
lib	metag: Fix typos	2016-07-15 09:55:49 +01:00
mm	metag: Drop show_mem() from mem_init()	2016-08-09 13:41:30 +01:00
oprofile	metag: OProfile support	2013-03-15 13:21:05 +00:00
tbx	metag: Fix misspellings in comments.	2016-04-18 12:45:54 +02:00
Kconfig	lib/GCD.c: use binary GCD algorithm instead of Euclidean	2016-05-20 17:58:30 -07:00
Kconfig.debug	consolidate per-arch stack overflow debugging options	2013-07-04 11:25:39 -07:00
Kconfig.soc	metag: remove ARCH_WANT_OPTIONAL_GPIOLIB	2016-04-26 13:39:22 +02:00
Makefile	metag: use common make variables for dtb builds	2015-10-27 16:12:15 -05:00