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perf cs-etm: Add configuration for ETMv3 trace protocol

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This patch deals with the proper initialisation of configuration
parameters for the ETMv3 trace protocol in order to properly handle
packets generated by tracers following this specification.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/1543955944-10042-2-git-send-email-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mathieu Poirier 2018-12-04 13:39:02 -07:00 committed by Arnaldo Carvalho de Melo
parent 8aa5c8eddc
commit 78688342c5
2 changed files with 48 additions and 14 deletions
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8
tools/perf/util/cs-etm-decoder/cs-etm-decoder.h
View File

@ -53,6 +53,13 @@ struct cs_etm_queue;
typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u64,
size_t, u8 *);
struct cs_etmv3_trace_params {
u32 reg_ctrl;
u32 reg_trc_id;
u32 reg_ccer;
u32 reg_idr;
};
struct cs_etmv4_trace_params {
u32 reg_idr0;
u32 reg_idr1;
@ -65,6 +72,7 @@ struct cs_etmv4_trace_params {
struct cs_etm_trace_params {
int protocol;
union {
struct cs_etmv3_trace_params etmv3;
struct cs_etmv4_trace_params etmv4;
};
};

54
tools/perf/util/cs-etm.c
View File

@ -114,15 +114,28 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm,
/* Use metadata to fill in trace parameters for trace decoder */
t_params = zalloc(sizeof(*t_params) * etm->num_cpu);
for (i = 0; i < etm->num_cpu; i++) {
t_params[i].protocol = CS_ETM_PROTO_ETMV4i;
t_params[i].etmv4.reg_idr0 = etm->metadata[i][CS_ETMV4_TRCIDR0];
t_params[i].etmv4.reg_idr1 = etm->metadata[i][CS_ETMV4_TRCIDR1];
t_params[i].etmv4.reg_idr2 = etm->metadata[i][CS_ETMV4_TRCIDR2];
t_params[i].etmv4.reg_idr8 = etm->metadata[i][CS_ETMV4_TRCIDR8];
t_params[i].etmv4.reg_configr =
if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) {
t_params[i].protocol = CS_ETM_PROTO_ETMV3;
t_params[i].etmv3.reg_ctrl =
etm->metadata[i][CS_ETM_ETMCR];
t_params[i].etmv3.reg_trc_id =
etm->metadata[i][CS_ETM_ETMTRACEIDR];
} else if (etm->metadata[i][CS_ETM_MAGIC] ==
__perf_cs_etmv4_magic) {
t_params[i].protocol = CS_ETM_PROTO_ETMV4i;
t_params[i].etmv4.reg_idr0 =
etm->metadata[i][CS_ETMV4_TRCIDR0];
t_params[i].etmv4.reg_idr1 =
etm->metadata[i][CS_ETMV4_TRCIDR1];
t_params[i].etmv4.reg_idr2 =
etm->metadata[i][CS_ETMV4_TRCIDR2];
t_params[i].etmv4.reg_idr8 =
etm->metadata[i][CS_ETMV4_TRCIDR8];
t_params[i].etmv4.reg_configr =
etm->metadata[i][CS_ETMV4_TRCCONFIGR];
t_params[i].etmv4.reg_traceidr =
t_params[i].etmv4.reg_traceidr =
etm->metadata[i][CS_ETMV4_TRCTRACEIDR];
}
}
/* Set decoder parameters to simply print the trace packets */
@ -352,15 +365,28 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm,
goto out_free;
for (i = 0; i < etm->num_cpu; i++) {
t_params[i].protocol = CS_ETM_PROTO_ETMV4i;
t_params[i].etmv4.reg_idr0 = etm->metadata[i][CS_ETMV4_TRCIDR0];
t_params[i].etmv4.reg_idr1 = etm->metadata[i][CS_ETMV4_TRCIDR1];
t_params[i].etmv4.reg_idr2 = etm->metadata[i][CS_ETMV4_TRCIDR2];
t_params[i].etmv4.reg_idr8 = etm->metadata[i][CS_ETMV4_TRCIDR8];
t_params[i].etmv4.reg_configr =
if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) {
t_params[i].protocol = CS_ETM_PROTO_ETMV3;
t_params[i].etmv3.reg_ctrl =
etm->metadata[i][CS_ETM_ETMCR];
t_params[i].etmv3.reg_trc_id =
etm->metadata[i][CS_ETM_ETMTRACEIDR];
} else if (etm->metadata[i][CS_ETM_MAGIC] ==
__perf_cs_etmv4_magic) {
t_params[i].protocol = CS_ETM_PROTO_ETMV4i;
t_params[i].etmv4.reg_idr0 =
etm->metadata[i][CS_ETMV4_TRCIDR0];
t_params[i].etmv4.reg_idr1 =
etm->metadata[i][CS_ETMV4_TRCIDR1];
t_params[i].etmv4.reg_idr2 =
etm->metadata[i][CS_ETMV4_TRCIDR2];
t_params[i].etmv4.reg_idr8 =
etm->metadata[i][CS_ETMV4_TRCIDR8];
t_params[i].etmv4.reg_configr =
etm->metadata[i][CS_ETMV4_TRCCONFIGR];
t_params[i].etmv4.reg_traceidr =
t_params[i].etmv4.reg_traceidr =
etm->metadata[i][CS_ETMV4_TRCTRACEIDR];
}
}
/* Set decoder parameters to simply print the trace packets */