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perf cs-etm: Add support for ETMv3 trace decoding 

Add support for the creation of packet printer and decoder for the ETMv3
trace architecture.  That way traces generated by tracers adhering to
that trace protocol can be handled properly by the perf infrastructure.

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/1543955944-10042-3-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 13:39:03 -07:00 committed by Arnaldo Carvalho de Melo
parent 78688342c5
commit 7d0f4fefc4
1 changed files with 25 additions and 0 deletions
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25
tools/perf/util/cs-etm-decoder/cs-etm-decoder.c
View File

@ -116,6 +116,19 @@ int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder,
return 1;
}
static int cs_etm_decoder__gen_etmv3_config(struct cs_etm_trace_params *params,
ocsd_etmv3_cfg *config)
{
config->reg_idr = params->etmv3.reg_idr;
config->reg_ctrl = params->etmv3.reg_ctrl;
config->reg_ccer = params->etmv3.reg_ccer;
config->reg_trc_id = params->etmv3.reg_trc_id;
config->arch_ver = ARCH_V7;
config->core_prof = profile_CortexA;
return 0;
}
static void cs_etm_decoder__gen_etmv4_config(struct cs_etm_trace_params *params,
ocsd_etmv4_cfg *config)
{
@ -237,10 +250,16 @@ cs_etm_decoder__create_etm_packet_printer(struct cs_etm_trace_params *t_params,
struct cs_etm_decoder *decoder)
{
const char *decoder_name;
ocsd_etmv3_cfg config_etmv3;
ocsd_etmv4_cfg trace_config_etmv4;
void *trace_config;
switch (t_params->protocol) {
case CS_ETM_PROTO_ETMV3:
cs_etm_decoder__gen_etmv3_config(t_params, &config_etmv3);
decoder_name = OCSD_BUILTIN_DCD_ETMV3;
trace_config = &config_etmv3;
break;
case CS_ETM_PROTO_ETMV4i:
cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4);
decoder_name = OCSD_BUILTIN_DCD_ETMV4I;
@ -427,11 +446,17 @@ static int cs_etm_decoder__create_etm_packet_decoder(
struct cs_etm_decoder *decoder)
{
const char *decoder_name;
ocsd_etmv3_cfg config_etmv3;
ocsd_etmv4_cfg trace_config_etmv4;
void *trace_config;
u8 csid;
switch (t_params->protocol) {
case CS_ETM_PROTO_ETMV3:
cs_etm_decoder__gen_etmv3_config(t_params, &config_etmv3);
decoder_name = OCSD_BUILTIN_DCD_ETMV3;
trace_config = &config_etmv3;
break;
case CS_ETM_PROTO_ETMV4i:
cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4);
decoder_name = OCSD_BUILTIN_DCD_ETMV4I;