David Sharp 8cbd9cc625 tracing,x86: Add a TSC trace_clock ... In order to promote interoperability between userspace tracers and ftrace, add a trace_clock that reports raw TSC values which will then be recorded in the ring buffer. Userspace tracers that also record TSCs are then on exactly the same time base as the kernel and events can be unambiguously interlaced. Tested: Enabled a tracepoint and the "tsc" trace_clock and saw very large timestamp values. v2: Move arch-specific bits out of generic code. v3: Rename "x86-tsc", cleanups v7: Generic arch bits in Kbuild. Google-Bug-Id: 6980623 Link: http://lkml.kernel.org/r/1352837903-32191-1-git-send-email-dhsharp@google.com Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Signed-off-by: David Sharp <dhsharp@google.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>		2012-11-13 15:48:27 -05:00
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boot	xtensa: reorganize SR referencing	2012-10-15 21:48:08 -07:00
configs	xtensa: drop CONFIG_EMBEDDED_RAMDISK	2012-10-03 15:13:09 -07:00
include	tracing,x86: Add a TSC trace_clock	2012-11-13 15:48:27 -05:00
kernel	xtensa: minor compiler warning fix	2012-10-19 10:24:20 -07:00
lib	xtensa: fix memmove(), bcopy(), and memcpy().	2012-10-15 21:41:19 -07:00
mm	xtensa: fix missing return in do_page_fault for SIGBUS case	2012-10-15 21:42:52 -07:00
platforms	xtensa: reorganize SR referencing	2012-10-15 21:48:08 -07:00
variants	xtensa: Change mail addresses of Hannes Weiner and Oskar Schirmer	2012-05-17 22:47:41 +02:00
Kconfig	Xtensa patchset for 3.7	2012-10-09 16:11:46 +09:00
Kconfig.debug	[PATCH] xtensa: Architecture support for Tensilica Xtensa Part 1	2005-06-24 00:05:21 -07:00
Makefile	xtensa: Setup CROSS_COMPILE at the top	2012-10-04 12:16:20 -07:00