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authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>2011-03-16 19:04:16 -0400
committerMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>2011-03-16 19:04:16 -0400
commit4ede9efaf07eedf3ba0afcd9e4a609d7589780ab (patch)
tree55f587576e79af7683ea92fc9ba3cdef99ac27b5 /Documentation
parent17e5074afa55a5759d3380cdc9a9eb719e4c39d0 (diff)
downloadlinux-linaro-android-4ede9efaf07eedf3ba0afcd9e4a609d7589780ab.tar.gz
trace-clock/sh-trace-clock
LTTng timestamp sh This patch adds the timestamping mechanism in the trace-clock.h arch header file. The new timestamp functions use the TMU channel 1. This code only works if the TMU channel 1 is initialized during the kernel boot. Big fat warning(TM) from Mathieu Desnoyers : This patch seems to assume TMU channel 1 is setup at boot. Is it always true on all SuperH boards ? Is there some Kconfig selection that should be done here ? Make sure this patch does not break get_cycles on SuperH before merging. Second warning: Hopefully, new 2.6.33 ifdefs are deprecated by the lttng implementation. Includes: sh: fixed a wrong header path into the architecture timex file renamed trace_clock_get_timestamp<XX> as trace_clock_read<XX> From: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> CC: Paul Mundt <lethal@linux-sh.org> CC: linux-sh@vger.kernel.org
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