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0c4df02d73
linux/arch/x86
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Dave Hansen 0c4df02d73 x86: Add NMI duration tracepoints 
This patch has been invaluable in my adventures finding
issues in the perf NMI handler.  I'm as big a fan of
printk() as anybody is, but using printk() in NMIs is
deadly when they're happening frequently.

Even hacking in trace_printk() ended up eating enough
CPU to throw off some of the measurements I was making.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: paulus@samba.org
Cc: acme@ghostprotocols.net
Cc: Dave Hansen <dave@sr71.net>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-06-23 11:52:58 +02:00
..
boot Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:34:07 -07:00
configs x86: Default to ARCH=x86 to avoid overriding CONFIG_64BIT 2012-12-20 14:37:18 -08:00
crypto crypto: camellia - add AVX2/AES-NI/x86_64 assembler implementation of camellia cipher 2013-04-25 21:09:07 +08:00
ia32 x86/signals: Propagate RF EFLAGS bit through the signal restore call 2013-05-28 08:46:50 +02:00
include perf/x86/intel: Add simple Haswell PMU support 2013-06-19 14:43:33 +02:00
kernel x86: Add NMI duration tracepoints 2013-06-23 11:52:58 +02:00
kvm KVM: emulator: emulate SALC 2013-05-09 13:15:08 +03:00
lguest Merge branch 'x86-paravirt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-04-30 08:41:21 -07:00
lib Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
math-emu
mm x86/mm: Add missing comments for initial kernel direct mapping 2013-05-10 12:00:35 +02:00
net filter: bpf_jit_comp: refactor and unify BPF JIT image dump output 2013-03-21 17:25:56 -04:00
oprofile
pci Revert "x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0" 2013-05-20 10:20:21 -06:00
platform Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
power x86, gdt, hibernate: Store/load GDT for hibernate path. 2013-05-02 11:27:35 -07:00
realmode x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF 2013-04-16 16:02:58 -07:00
syscalls unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE 2013-05-09 13:46:38 -04:00
tools x86, relocs: Refactor the relocs tool to merge 32- and 64-bit ELF 2013-04-16 16:02:58 -07:00
um make SYSCALL_DEFINE<n>-generated wrappers do asmlinkage_protect 2013-03-03 22:58:33 -05:00
vdso timers/x86/hpet: Use HPET_COUNTER to specify the hpet counter in vread_hpet() 2013-02-15 12:13:18 +01:00
video
xen Bug-fixes: 2013-05-11 16:19:30 -07:00
.gitignore
Kbuild
Kconfig Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-05-15 14:05:17 -07:00
Kconfig.cpu x86, 386 removal: Document Nx586 as a 386 and thus unsupported 2012-11-29 13:28:39 -08:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile Merge branch 'x86-build-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-19 19:12:03 -08:00
Makefile_32.cpu x86, 386 removal: Remove CONFIG_M386 from Kconfig 2012-11-29 13:23:01 -08:00
Makefile.um