[PATCH v2 3/7] perf arm-spe: Dump TSC parameters

[Leo Yan]

The TSC parameters are stored in auxtrace info, this patch dumps these
parameters for reporting the raw data.

Signed-off-by: Leo Yan <leo....@linaro.org>
---
 tools/perf/util/arm-spe.c | 42 ++++++++++++++++++++++++++++++++++-----
 1 file changed, 37 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/arm-spe.c b/tools/perf/util/arm-spe.c
index 2539d4baec44..69ce3483d1af 100644
--- a/tools/perf/util/arm-spe.c
+++ b/tools/perf/util/arm-spe.c
@@ -26,6 +26,7 @@
 #include "symbol.h"
 #include "thread.h"
 #include "thread-stack.h"
+#include "tsc.h"
 #include "tool.h"
 #include "util/synthetic-events.h"
 
@@ -45,6 +46,8 @@ struct arm_spe {
        struct machine                  *machine;
        u32                             pmu_type;
 
+       struct perf_tsc_conversion      tc;
+
        u8                              timeless_decoding;
        u8                              data_queued;
 
@@ -803,14 +806,23 @@ static bool arm_spe_evsel_is_auxtrace(struct perf_session 
*session,
 
 static const char * const arm_spe_info_fmts[] = {
        [ARM_SPE_PMU_TYPE]              = "  PMU Type           %"PRId64"\n",
+       [ARM_SPE_TIME_SHIFT]            = "  Time Shift         %"PRIu64"\n",
+       [ARM_SPE_TIME_MULT]             = "  Time Muliplier     %"PRIu64"\n",
+       [ARM_SPE_TIME_ZERO]             = "  Time Zero          %"PRIu64"\n",
+       [ARM_SPE_TIME_CYCLES]           = "  Time Cycles        %"PRIu64"\n",
+       [ARM_SPE_TIME_MASK]             = "  Time Mask          %#"PRIx64"\n",
+       [ARM_SPE_CAP_USER_TIME_SHORT]   = "  Cap Time Short     %"PRId64"\n",
 };
 
-static void arm_spe_print_info(__u64 *arr)
+static void arm_spe_print_info(__u64 *arr, int start, int finish)
 {
+       int i;
+
        if (!dump_trace)
                return;
 
-       fprintf(stdout, arm_spe_info_fmts[ARM_SPE_PMU_TYPE], 
arr[ARM_SPE_PMU_TYPE]);
+       for (i = start; i <= finish; i++)
+               fprintf(stdout, arm_spe_info_fmts[i], arr[i]);
 }
 
 struct arm_spe_synth {
@@ -1001,11 +1013,19 @@ arm_spe_synth_events(struct arm_spe *spe, struct 
perf_session *session)
        return 0;
 }
 
+static bool arm_spe_has(struct perf_record_auxtrace_info *auxtrace_info,
+                       int pos)
+{
+       return auxtrace_info->header.size >=
+               (sizeof(struct perf_record_auxtrace_info) +
+                (sizeof(u64) * (pos + 1)));
+}
+
 int arm_spe_process_auxtrace_info(union perf_event *event,
                                  struct perf_session *session)
 {
        struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info;
-       size_t min_sz = sizeof(u64) * ARM_SPE_AUXTRACE_PRIV_MAX;
+       size_t min_sz = sizeof(u64) * ARM_SPE_TIME_SHIFT;
        struct arm_spe *spe;
        int err;
 
@@ -1025,6 +1045,20 @@ int arm_spe_process_auxtrace_info(union perf_event 
*event,
        spe->machine = &session->machines.host; /* No kvm support */
        spe->auxtrace_type = auxtrace_info->type;
        spe->pmu_type = auxtrace_info->priv[ARM_SPE_PMU_TYPE];
+       arm_spe_print_info(&auxtrace_info->priv[0], ARM_SPE_PMU_TYPE,
+                          ARM_SPE_PMU_TYPE);
+
+       if (arm_spe_has(auxtrace_info, ARM_SPE_CAP_USER_TIME_SHORT)) {
+               spe->tc.time_shift = auxtrace_info->priv[ARM_SPE_TIME_SHIFT];
+               spe->tc.time_mult = auxtrace_info->priv[ARM_SPE_TIME_MULT];
+               spe->tc.time_zero = auxtrace_info->priv[ARM_SPE_TIME_ZERO];
+               spe->tc.time_cycles = auxtrace_info->priv[ARM_SPE_TIME_CYCLES];
+               spe->tc.time_mask = auxtrace_info->priv[ARM_SPE_TIME_MASK];
+               spe->tc.cap_user_time_short =
+                       auxtrace_info->priv[ARM_SPE_CAP_USER_TIME_SHORT];
+               arm_spe_print_info(&auxtrace_info->priv[0], ARM_SPE_TIME_SHIFT,
+                                  ARM_SPE_CAP_USER_TIME_SHORT);
+       }
 
        spe->timeless_decoding = arm_spe__is_timeless_decoding(spe);
        spe->auxtrace.process_event = arm_spe_process_event;
@@ -1035,8 +1069,6 @@ int arm_spe_process_auxtrace_info(union perf_event *event,
        spe->auxtrace.evsel_is_auxtrace = arm_spe_evsel_is_auxtrace;
        session->auxtrace = &spe->auxtrace;
 
-       arm_spe_print_info(&auxtrace_info->priv[0]);
-
        if (dump_trace)
                return 0;
 
-- 
2.25.1