From: Mathieu Poirier <mathieu.poirier@linaro.org> To: acme@kernel.org Cc: peterz@infradead.org, mingo@redhat.com, alexander.shishkin@linux.intel.com, namhyung@kernel.org, adrian.hunter@intel.com, mike.leach@arm.com, suzuki.poulosi@arm.com, jolsa@redhat.com, kim.phillips@arm.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 05/10] perf tools: Add support for decoding CoreSight trace data Date: Mon, 15 Jan 2018 11:13:09 -0700 [thread overview] Message-ID: <1516039994-314-6-git-send-email-mathieu.poirier@linaro.org> (raw) In-Reply-To: <1516039994-314-1-git-send-email-mathieu.poirier@linaro.org> Adding functionality to create a CoreSight trace decoder capable of decoding trace data pushed by a client application. Co-authored-by: Tor Jeremiassen <tor@ti.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 119 ++++++++++++++++++++++++ 1 file changed, 119 insertions(+) diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c index 6a4c86b1431f..57b020b0b36f 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -200,6 +200,121 @@ static void cs_etm_decoder__clear_buffer(struct cs_etm_decoder *decoder) } } +static ocsd_datapath_resp_t +cs_etm_decoder__buffer_packet(struct cs_etm_decoder *decoder, + const ocsd_generic_trace_elem *elem, + const u8 trace_chan_id, + enum cs_etm_sample_type sample_type) +{ + u32 et = 0; + struct int_node *inode = NULL; + + if (decoder->packet_count >= MAX_BUFFER - 1) + return OCSD_RESP_FATAL_SYS_ERR; + + /* Search the RB tree for the cpu associated with this traceID */ + inode = intlist__find(traceid_list, trace_chan_id); + if (!inode) + return OCSD_RESP_FATAL_SYS_ERR; + + et = decoder->tail; + decoder->packet_buffer[et].sample_type = sample_type; + decoder->packet_buffer[et].start_addr = elem->st_addr; + decoder->packet_buffer[et].end_addr = elem->en_addr; + decoder->packet_buffer[et].exc = false; + decoder->packet_buffer[et].exc_ret = false; + decoder->packet_buffer[et].cpu = *((int *)inode->priv); + + /* Wrap around if need be */ + et = (et + 1) & (MAX_BUFFER - 1); + + decoder->tail = et; + decoder->packet_count++; + + if (decoder->packet_count == MAX_BUFFER - 1) + return OCSD_RESP_WAIT; + + return OCSD_RESP_CONT; +} + +static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( + const void *context, + const ocsd_trc_index_t indx __maybe_unused, + const u8 trace_chan_id __maybe_unused, + const ocsd_generic_trace_elem *elem) +{ + ocsd_datapath_resp_t resp = OCSD_RESP_CONT; + struct cs_etm_decoder *decoder = (struct cs_etm_decoder *) context; + + switch (elem->elem_type) { + case OCSD_GEN_TRC_ELEM_UNKNOWN: + break; + case OCSD_GEN_TRC_ELEM_NO_SYNC: + decoder->trace_on = false; + break; + case OCSD_GEN_TRC_ELEM_TRACE_ON: + decoder->trace_on = true; + break; + case OCSD_GEN_TRC_ELEM_INSTR_RANGE: + resp = cs_etm_decoder__buffer_packet(decoder, elem, + trace_chan_id, + CS_ETM_RANGE); + break; + case OCSD_GEN_TRC_ELEM_EXCEPTION: + decoder->packet_buffer[decoder->tail].exc = true; + break; + case OCSD_GEN_TRC_ELEM_EXCEPTION_RET: + decoder->packet_buffer[decoder->tail].exc_ret = true; + break; + case OCSD_GEN_TRC_ELEM_PE_CONTEXT: + case OCSD_GEN_TRC_ELEM_EO_TRACE: + case OCSD_GEN_TRC_ELEM_ADDR_NACC: + case OCSD_GEN_TRC_ELEM_TIMESTAMP: + case OCSD_GEN_TRC_ELEM_CYCLE_COUNT: + case OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN: + case OCSD_GEN_TRC_ELEM_EVENT: + case OCSD_GEN_TRC_ELEM_SWTRACE: + case OCSD_GEN_TRC_ELEM_CUSTOM: + default: + break; + } + + return resp; +} + +static int cs_etm_decoder__create_etm_packet_decoder( + struct cs_etm_trace_params *t_params, + struct cs_etm_decoder *decoder) +{ + const char *decoder_name; + ocsd_etmv4_cfg trace_config_etmv4; + void *trace_config; + u8 csid; + + switch (t_params->protocol) { + case CS_ETM_PROTO_ETMV4i: + cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4); + decoder_name = OCSD_BUILTIN_DCD_ETMV4I; + trace_config = &trace_config_etmv4; + break; + default: + return -1; + } + + if (ocsd_dt_create_decoder(decoder->dcd_tree, + decoder_name, + OCSD_CREATE_FLG_FULL_DECODER, + trace_config, &csid)) + return -1; + + if (ocsd_dt_set_gen_elem_outfn(decoder->dcd_tree, + cs_etm_decoder__gen_trace_elem_printer, + decoder)) + return -1; + + return 0; +} + static int cs_etm_decoder__create_etm_decoder(struct cs_etm_decoder_params *d_params, struct cs_etm_trace_params *t_params, @@ -208,6 +323,10 @@ cs_etm_decoder__create_etm_decoder(struct cs_etm_decoder_params *d_params, if (d_params->operation == CS_ETM_OPERATION_PRINT) return cs_etm_decoder__create_etm_packet_printer(t_params, decoder); + else if (d_params->operation == CS_ETM_OPERATION_DECODE) + return cs_etm_decoder__create_etm_packet_decoder(t_params, + decoder); + return -1; } -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: mathieu.poirier@linaro.org (Mathieu Poirier) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 05/10] perf tools: Add support for decoding CoreSight trace data Date: Mon, 15 Jan 2018 11:13:09 -0700 [thread overview] Message-ID: <1516039994-314-6-git-send-email-mathieu.poirier@linaro.org> (raw) In-Reply-To: <1516039994-314-1-git-send-email-mathieu.poirier@linaro.org> Adding functionality to create a CoreSight trace decoder capable of decoding trace data pushed by a client application. Co-authored-by: Tor Jeremiassen <tor@ti.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> --- tools/perf/util/cs-etm-decoder/cs-etm-decoder.c | 119 ++++++++++++++++++++++++ 1 file changed, 119 insertions(+) diff --git a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c index 6a4c86b1431f..57b020b0b36f 100644 --- a/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c +++ b/tools/perf/util/cs-etm-decoder/cs-etm-decoder.c @@ -200,6 +200,121 @@ static void cs_etm_decoder__clear_buffer(struct cs_etm_decoder *decoder) } } +static ocsd_datapath_resp_t +cs_etm_decoder__buffer_packet(struct cs_etm_decoder *decoder, + const ocsd_generic_trace_elem *elem, + const u8 trace_chan_id, + enum cs_etm_sample_type sample_type) +{ + u32 et = 0; + struct int_node *inode = NULL; + + if (decoder->packet_count >= MAX_BUFFER - 1) + return OCSD_RESP_FATAL_SYS_ERR; + + /* Search the RB tree for the cpu associated with this traceID */ + inode = intlist__find(traceid_list, trace_chan_id); + if (!inode) + return OCSD_RESP_FATAL_SYS_ERR; + + et = decoder->tail; + decoder->packet_buffer[et].sample_type = sample_type; + decoder->packet_buffer[et].start_addr = elem->st_addr; + decoder->packet_buffer[et].end_addr = elem->en_addr; + decoder->packet_buffer[et].exc = false; + decoder->packet_buffer[et].exc_ret = false; + decoder->packet_buffer[et].cpu = *((int *)inode->priv); + + /* Wrap around if need be */ + et = (et + 1) & (MAX_BUFFER - 1); + + decoder->tail = et; + decoder->packet_count++; + + if (decoder->packet_count == MAX_BUFFER - 1) + return OCSD_RESP_WAIT; + + return OCSD_RESP_CONT; +} + +static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( + const void *context, + const ocsd_trc_index_t indx __maybe_unused, + const u8 trace_chan_id __maybe_unused, + const ocsd_generic_trace_elem *elem) +{ + ocsd_datapath_resp_t resp = OCSD_RESP_CONT; + struct cs_etm_decoder *decoder = (struct cs_etm_decoder *) context; + + switch (elem->elem_type) { + case OCSD_GEN_TRC_ELEM_UNKNOWN: + break; + case OCSD_GEN_TRC_ELEM_NO_SYNC: + decoder->trace_on = false; + break; + case OCSD_GEN_TRC_ELEM_TRACE_ON: + decoder->trace_on = true; + break; + case OCSD_GEN_TRC_ELEM_INSTR_RANGE: + resp = cs_etm_decoder__buffer_packet(decoder, elem, + trace_chan_id, + CS_ETM_RANGE); + break; + case OCSD_GEN_TRC_ELEM_EXCEPTION: + decoder->packet_buffer[decoder->tail].exc = true; + break; + case OCSD_GEN_TRC_ELEM_EXCEPTION_RET: + decoder->packet_buffer[decoder->tail].exc_ret = true; + break; + case OCSD_GEN_TRC_ELEM_PE_CONTEXT: + case OCSD_GEN_TRC_ELEM_EO_TRACE: + case OCSD_GEN_TRC_ELEM_ADDR_NACC: + case OCSD_GEN_TRC_ELEM_TIMESTAMP: + case OCSD_GEN_TRC_ELEM_CYCLE_COUNT: + case OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN: + case OCSD_GEN_TRC_ELEM_EVENT: + case OCSD_GEN_TRC_ELEM_SWTRACE: + case OCSD_GEN_TRC_ELEM_CUSTOM: + default: + break; + } + + return resp; +} + +static int cs_etm_decoder__create_etm_packet_decoder( + struct cs_etm_trace_params *t_params, + struct cs_etm_decoder *decoder) +{ + const char *decoder_name; + ocsd_etmv4_cfg trace_config_etmv4; + void *trace_config; + u8 csid; + + switch (t_params->protocol) { + case CS_ETM_PROTO_ETMV4i: + cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4); + decoder_name = OCSD_BUILTIN_DCD_ETMV4I; + trace_config = &trace_config_etmv4; + break; + default: + return -1; + } + + if (ocsd_dt_create_decoder(decoder->dcd_tree, + decoder_name, + OCSD_CREATE_FLG_FULL_DECODER, + trace_config, &csid)) + return -1; + + if (ocsd_dt_set_gen_elem_outfn(decoder->dcd_tree, + cs_etm_decoder__gen_trace_elem_printer, + decoder)) + return -1; + + return 0; +} + static int cs_etm_decoder__create_etm_decoder(struct cs_etm_decoder_params *d_params, struct cs_etm_trace_params *t_params, @@ -208,6 +323,10 @@ cs_etm_decoder__create_etm_decoder(struct cs_etm_decoder_params *d_params, if (d_params->operation == CS_ETM_OPERATION_PRINT) return cs_etm_decoder__create_etm_packet_printer(t_params, decoder); + else if (d_params->operation == CS_ETM_OPERATION_DECODE) + return cs_etm_decoder__create_etm_packet_decoder(t_params, + decoder); + return -1; } -- 2.7.4
next prev parent reply other threads:[~2018-01-15 18:13 UTC|newest] Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-01-15 18:13 [PATCH v2 00/10] perf tools: Add support for CoreSight trace decoding Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 01/10] perf tools: Integrating the CoreSight decoding library Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-16 12:14 ` Jiri Olsa 2018-01-16 12:15 ` Jiri Olsa 2018-01-16 18:04 ` Mathieu Poirier 2018-01-16 20:30 ` Mathieu Poirier 2018-01-17 8:06 ` Jiri Olsa 2018-01-17 8:06 ` Jiri Olsa 2018-01-18 13:41 ` Arnaldo Carvalho de Melo 2018-01-18 13:41 ` Arnaldo Carvalho de Melo 2018-01-18 13:59 ` Jiri Olsa 2018-01-18 13:59 ` Jiri Olsa 2018-01-18 14:14 ` Arnaldo Carvalho de Melo 2018-01-18 14:14 ` Arnaldo Carvalho de Melo 2018-01-18 14:27 ` Jiri Olsa 2018-01-18 14:27 ` Jiri Olsa 2018-01-19 14:58 ` Arnaldo Carvalho de Melo 2018-01-19 14:58 ` Arnaldo Carvalho de Melo 2018-01-19 15:12 ` Jiri Olsa 2018-01-19 15:12 ` Jiri Olsa 2018-01-19 15:24 ` Mathieu Poirier 2018-01-19 15:24 ` Mathieu Poirier 2018-01-19 15:55 ` Arnaldo Carvalho de Melo 2018-01-19 15:55 ` Arnaldo Carvalho de Melo 2018-01-19 17:28 ` Mathieu Poirier 2018-01-19 17:28 ` Mathieu Poirier 2018-01-19 18:46 ` Jiri Olsa 2018-01-19 18:46 ` Jiri Olsa 2018-01-15 18:13 ` [PATCH v2 02/10] perf tools: Add initial entry point for decoder CoreSight traces Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 03/10] perf tools: Add processing of coresight metadata Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 04/10] perf tools: Add decoder mechanic to support dumping trace data Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier [this message] 2018-01-15 18:13 ` [PATCH v2 05/10] perf tools: Add support for decoding CoreSight " Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 06/10] perf tools: Add functionality to communicate with the openCSD decoder Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 07/10] pert tools: Add queue management functionality Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 08/10] perf tools: Add full support for CoreSight trace decoding Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 09/10] perf tools: Add mechanic to synthesise CoreSight trace packets Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-15 18:13 ` [PATCH v2 10/10] MAINTAINERS: Adding entry for CoreSight trace decoding Mathieu Poirier 2018-01-15 18:13 ` Mathieu Poirier 2018-01-16 12:17 ` [PATCH v2 00/10] perf tools: Add support " Jiri Olsa
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