linux_dsm_epyc7002/arch/alpha
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
..
boot Disintegrate asm/system.h for Alpha 2012-03-28 18:11:12 +01:00
include tracing,x86: Add a TSC trace_clock 2012-11-13 15:48:27 -05:00
kernel alpha: separate thread-synchronous flags 2012-10-24 05:16:45 +03:00
lib alpha: Use new generic strncpy_from_user() and strnlen_user() 2012-08-19 08:41:18 -07:00
math-emu alpha: change to new Makefile flag variables 2011-01-17 05:42:13 +01:00
mm alpha/mm/fault.c: Port OOM changes to do_page_fault 2012-08-19 08:41:19 -07:00
oprofile alpha: Fix fall-out from disintegrating asm/system.h 2012-08-19 08:41:19 -07:00
defconfig defconfig reduction 2010-08-14 22:26:53 +02:00
Kconfig Merge branch 'modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux 2012-10-14 13:39:34 -07:00
Kconfig.debug alpha/parisc: remove config variable DEBUG_RWLOCK 2008-02-06 10:41:03 -08:00
Makefile alpha: link failure fix 2008-06-20 16:46:10 -07:00