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perf cs-etm: Introducing function cs_etm__init_trace_params()

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The trace parameter initialisation code is repeated in two different
places, something that bloats the file and can lead to errors.  This
is fixed by introducing a helper function and calling the right
protocol initialisation code when required.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki K Poulouse <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lkml.kernel.org/r/20190212171618.25355-7-mathieu.poirier@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Mathieu Poirier 2019-02-12 10:16:11 -07:00 • committed by Arnaldo Carvalho de Melo
parent ae4d9f5236
commit 2507a3d982
2 changed files with 58 additions and 58 deletions
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112
tools/perf/util/cs-etm.c
View file

@ -136,6 +136,57 @@ static void cs_etm__packet_dump(const char *pkt_string)
fflush(stdout); fflush(stdout);
} }
static void cs_etm__set_trace_param_etmv3(struct cs_etm_trace_params *t_params,
struct cs_etm_auxtrace *etm, int idx,
u32 etmidr)
{
u64 **metadata = etm->metadata;
t_params[idx].protocol = cs_etm__get_v7_protocol_version(etmidr);
t_params[idx].etmv3.reg_ctrl = metadata[idx][CS_ETM_ETMCR];
t_params[idx].etmv3.reg_trc_id = metadata[idx][CS_ETM_ETMTRACEIDR];
}
static void cs_etm__set_trace_param_etmv4(struct cs_etm_trace_params *t_params,
struct cs_etm_auxtrace *etm, int idx)
{
u64 **metadata = etm->metadata;
t_params[idx].protocol = CS_ETM_PROTO_ETMV4i;
t_params[idx].etmv4.reg_idr0 = metadata[idx][CS_ETMV4_TRCIDR0];
t_params[idx].etmv4.reg_idr1 = metadata[idx][CS_ETMV4_TRCIDR1];
t_params[idx].etmv4.reg_idr2 = metadata[idx][CS_ETMV4_TRCIDR2];
t_params[idx].etmv4.reg_idr8 = metadata[idx][CS_ETMV4_TRCIDR8];
t_params[idx].etmv4.reg_configr = metadata[idx][CS_ETMV4_TRCCONFIGR];
t_params[idx].etmv4.reg_traceidr = metadata[idx][CS_ETMV4_TRCTRACEIDR];
}
static int cs_etm__init_trace_params(struct cs_etm_trace_params *t_params,
struct cs_etm_auxtrace *etm)
{
int i;
u32 etmidr;
u64 architecture;
for (i = 0; i < etm->num_cpu; i++) {
architecture = etm->metadata[i][CS_ETM_MAGIC];
switch (architecture) {
case __perf_cs_etmv3_magic:
etmidr = etm->metadata[i][CS_ETM_ETMIDR];
cs_etm__set_trace_param_etmv3(t_params, etm, i, etmidr);
break;
case __perf_cs_etmv4_magic:
cs_etm__set_trace_param_etmv4(t_params, etm, i);
break;
default:
return -EINVAL;
}
}
return 0;
}
static int cs_etm__init_decoder_params(struct cs_etm_decoder_params *d_params, static int cs_etm__init_decoder_params(struct cs_etm_decoder_params *d_params,
struct cs_etm_queue *etmq, struct cs_etm_queue *etmq,
enum cs_etm_decoder_operation mode) enum cs_etm_decoder_operation mode)
@ -161,7 +212,7 @@ out:
static void cs_etm__dump_event(struct cs_etm_auxtrace *etm, static void cs_etm__dump_event(struct cs_etm_auxtrace *etm,
struct auxtrace_buffer *buffer) struct auxtrace_buffer *buffer)
{ {
int i, ret; int ret;
const char *color = PERF_COLOR_BLUE; const char *color = PERF_COLOR_BLUE;
struct cs_etm_decoder_params d_params; struct cs_etm_decoder_params d_params;
struct cs_etm_trace_params *t_params; struct cs_etm_trace_params *t_params;
@ -179,33 +230,8 @@ static void cs_etm__dump_event(struct cs_etm_auxtrace *etm,
if (!t_params) if (!t_params)
return; return;
for (i = 0; i < etm->num_cpu; i++) { if (cs_etm__init_trace_params(t_params, etm))
if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) { goto out_free;
u32 etmidr = etm->metadata[i][CS_ETM_ETMIDR];
t_params[i].protocol =
cs_etm__get_v7_protocol_version(etmidr);
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 =
etm->metadata[i][CS_ETMV4_TRCTRACEIDR];
}
}
/* Set decoder parameters to simply print the trace packets */ /* Set decoder parameters to simply print the trace packets */
if (cs_etm__init_decoder_params(&d_params, NULL, if (cs_etm__init_decoder_params(&d_params, NULL,
@ -382,7 +408,6 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm, static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm,
unsigned int queue_nr) unsigned int queue_nr)
{ {
int i;
struct cs_etm_decoder_params d_params; struct cs_etm_decoder_params d_params;
struct cs_etm_trace_params *t_params = NULL; struct cs_etm_trace_params *t_params = NULL;
struct cs_etm_queue *etmq; struct cs_etm_queue *etmq;
@ -431,33 +456,8 @@ static struct cs_etm_queue *cs_etm__alloc_queue(struct cs_etm_auxtrace *etm,
if (!t_params) if (!t_params)
goto out_free; goto out_free;
for (i = 0; i < etm->num_cpu; i++) { if (cs_etm__init_trace_params(t_params, etm))
if (etm->metadata[i][CS_ETM_MAGIC] == __perf_cs_etmv3_magic) { goto out_free;
u32 etmidr = etm->metadata[i][CS_ETM_ETMIDR];
t_params[i].protocol =
cs_etm__get_v7_protocol_version(etmidr);
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 =
etm->metadata[i][CS_ETMV4_TRCTRACEIDR];
}
}
/* Set decoder parameters to simply print the trace packets */ /* Set decoder parameters to simply print the trace packets */
if (cs_etm__init_decoder_params(&d_params, etmq, if (cs_etm__init_decoder_params(&d_params, etmq,

4
tools/perf/util/cs-etm.h
View file

@ -105,8 +105,8 @@ struct intlist *traceid_list;
#define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_0_MAX * sizeof(u64)) #define CS_ETM_HEADER_SIZE (CS_HEADER_VERSION_0_MAX * sizeof(u64))
static const u64 __perf_cs_etmv3_magic = 0x3030303030303030ULL; #define __perf_cs_etmv3_magic 0x3030303030303030ULL
static const u64 __perf_cs_etmv4_magic = 0x4040404040404040ULL; #define __perf_cs_etmv4_magic 0x4040404040404040ULL
#define CS_ETMV3_PRIV_SIZE (CS_ETM_PRIV_MAX * sizeof(u64)) #define CS_ETMV3_PRIV_SIZE (CS_ETM_PRIV_MAX * sizeof(u64))
#define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64)) #define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64))