Commit-ID: 3a46817f674389d5fb2f4dce19fbc73ebd1976bb Gitweb: http://git.kernel.org/tip/3a46817f674389d5fb2f4dce19fbc73ebd1976bb Author: Baruch Siach <bar...@tkos.co.il> AuthorDate: Mon, 13 Jan 2014 12:27:35 +0200 Committer: Arnaldo Carvalho de Melo <a...@redhat.com> CommitDate: Mon, 20 Jan 2014 16:19:08 -0300
perf tools: Add support for the xtensa architecture Tested using kernel tracepoints on a QEMU simulated environment. Kernel support for perf depends on the patch "xtensa: enable HAVE_PERF_EVENTS", which is scheduled for v3.14. Hardware performance counters are not supported under xtensa yet. Acked-by: Ingo Molnar <mi...@kernel.org> Acked-by: Max Filippov <jcmvb...@gmail.com> Cc: Ingo Molnar <mi...@redhat.com> Cc: Paul Mackerras <pau...@samba.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: linux-xte...@linux-xtensa.org Link: http://lkml.kernel.org/r/aafcdb22f04e2d3188d2938528939481be56b649.1389608855.git.bar...@tkos.co.il Signed-off-by: Baruch Siach <bar...@tkos.co.il> Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/perf.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/tools/perf/perf.h b/tools/perf/perf.h index 3c2f213..7daa806 100644 --- a/tools/perf/perf.h +++ b/tools/perf/perf.h @@ -132,6 +132,13 @@ #define CPUINFO_PROC "CPU" #endif +#ifdef __xtensa__ +#define mb() asm volatile("memw" ::: "memory") +#define wmb() asm volatile("memw" ::: "memory") +#define rmb() asm volatile("" ::: "memory") +#define CPUINFO_PROC "core ID" +#endif + #define barrier() asm volatile ("" ::: "memory") #ifndef cpu_relax -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
