tree 10d34a68cd8fcd73a081d3039aac90b6bc46538f
parent 282f1f66b5a0f4875f2562144f5e5c80bc86dfc1
author Adrian Hunter <adrian.hunter@intel.com> 1527762224 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1530609795 +0200

perf intel-pt: Fix MTC timing after overflow

commit dd27b87ab5fcf3ea1c060b5e3ab5d31cc78e9f4c upstream.

On some platforms, overflows will clear before MTC wraparound, and there
is no following TSC/TMA packet. In that case the previous TMA is valid.
Since there will be a valid TMA either way, stop setting 'have_tma' to
false upon overflow.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1527762225-26024-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>