From edff7809c80f09398783d602c33a507309c23e24 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Mon, 10 Jun 2019 10:27:53 +0300 Subject: perf intel-pt: Add new packets for PEBS via PT Add 3 new packets to supports PEBS via PT, namely Block Begin Packet (BBP), Block Item Packet (BIP) and Block End Packet (BEP). PEBS data is encoded into multiple BIP packets that come between BBP and BEP. The BEP packet might be associated with a FUP packet. That is indicated by using a separate packet type (INTEL_PT_BEP_IP) similar to other packets types with the _IP suffix. Refer to the Intel SDM for more information about PEBS via PT: https://software.intel.com/en-us/articles/intel-sdm May 2019 version: Vol. 3B 18.5.5.2 PEBS output to Intel® Processor Trace Decoding of BIP packets conflicts with single-byte TNT packets. Since BIP packets only occur in the context of a block (i.e. between BBP and BEP), that context must be recorded and passed to the packet decoder. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190610072803.10456-2-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/intel-pt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/intel-pt.c') diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c index 8ed51f4e9e30..893cef494a43 100644 --- a/tools/perf/util/intel-pt.c +++ b/tools/perf/util/intel-pt.c @@ -177,13 +177,14 @@ static void intel_pt_dump(struct intel_pt *pt __maybe_unused, int ret, pkt_len, i; char desc[INTEL_PT_PKT_DESC_MAX]; const char *color = PERF_COLOR_BLUE; + enum intel_pt_pkt_ctx ctx = INTEL_PT_NO_CTX; color_fprintf(stdout, color, ". ... Intel Processor Trace data: size %zu bytes\n", len); while (len) { - ret = intel_pt_get_packet(buf, len, &packet); + ret = intel_pt_get_packet(buf, len, &packet, &ctx); if (ret > 0) pkt_len = ret; else -- cgit v1.2.3-55-g7522