linux-toradex.git/arch/powerpc/kernel/trace_clock.c, branch v4.3-rc2 Linux kernel for Apalis and Colibri modules powerpc/ftrace: add powerpc timebase as a trace clock source 2015-08-06T06:36:23+00:00 Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com 2015-04-24T08:54:44+00:00 197165d44925bd0fa892990851dee4d312a44b39 Add a new powerpc-specific trace clock using the timebase register, similar to x86-tsc. This gives us - a fast, monotonic, hardware clock source for trace entries, and - a clock that can be used to correlate events across cpus as well as across hypervisor and guests. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Add a new powerpc-specific trace clock using the timebase register,
similar to x86-tsc. This gives us
- a fast, monotonic, hardware clock source for trace entries, and
- a clock that can be used to correlate events across cpus as well as across
  hypervisor and guests.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>