perf-$(CONFIG_AUXTRACE) += cs-etm.o
perf-$(CONFIG_AUXTRACE) += cs-etm-decoder/
endif
+perf-$(CONFIG_AUXTRACE) += cs-etm-base.o
perf-y += parse-branch-options.o
perf-y += dump-insn.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * File for any parts of the Coresight decoding that don't require
+ * OpenCSD.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+
+#include "cs-etm.h"
+
+static const char * const cs_etm_global_header_fmts[] = {
+ [CS_HEADER_VERSION] = " Header version %llx\n",
+ [CS_PMU_TYPE_CPUS] = " PMU type/num cpus %llx\n",
+ [CS_ETM_SNAPSHOT] = " Snapshot %llx\n",
+};
+
+static const char * const cs_etm_priv_fmts[] = {
+ [CS_ETM_MAGIC] = " Magic number %llx\n",
+ [CS_ETM_CPU] = " CPU %lld\n",
+ [CS_ETM_NR_TRC_PARAMS] = " NR_TRC_PARAMS %llx\n",
+ [CS_ETM_ETMCR] = " ETMCR %llx\n",
+ [CS_ETM_ETMTRACEIDR] = " ETMTRACEIDR %llx\n",
+ [CS_ETM_ETMCCER] = " ETMCCER %llx\n",
+ [CS_ETM_ETMIDR] = " ETMIDR %llx\n",
+};
+
+static const char * const cs_etmv4_priv_fmts[] = {
+ [CS_ETM_MAGIC] = " Magic number %llx\n",
+ [CS_ETM_CPU] = " CPU %lld\n",
+ [CS_ETM_NR_TRC_PARAMS] = " NR_TRC_PARAMS %llx\n",
+ [CS_ETMV4_TRCCONFIGR] = " TRCCONFIGR %llx\n",
+ [CS_ETMV4_TRCTRACEIDR] = " TRCTRACEIDR %llx\n",
+ [CS_ETMV4_TRCIDR0] = " TRCIDR0 %llx\n",
+ [CS_ETMV4_TRCIDR1] = " TRCIDR1 %llx\n",
+ [CS_ETMV4_TRCIDR2] = " TRCIDR2 %llx\n",
+ [CS_ETMV4_TRCIDR8] = " TRCIDR8 %llx\n",
+ [CS_ETMV4_TRCAUTHSTATUS] = " TRCAUTHSTATUS %llx\n",
+ [CS_ETE_TRCDEVARCH] = " TRCDEVARCH %llx\n"
+};
+
+static const char * const param_unk_fmt =
+ " Unknown parameter [%d] %"PRIx64"\n";
+static const char * const magic_unk_fmt =
+ " Magic number Unknown %"PRIx64"\n";
+
+static int cs_etm__print_cpu_metadata_v0(u64 *val, int *offset)
+{
+ int i = *offset, j, nr_params = 0, fmt_offset;
+ u64 magic;
+
+ /* check magic value */
+ magic = val[i + CS_ETM_MAGIC];
+ if ((magic != __perf_cs_etmv3_magic) &&
+ (magic != __perf_cs_etmv4_magic)) {
+ /* failure - note bad magic value */
+ fprintf(stdout, magic_unk_fmt, magic);
+ return -EINVAL;
+ }
+
+ /* print common header block */
+ fprintf(stdout, cs_etm_priv_fmts[CS_ETM_MAGIC], val[i++]);
+ fprintf(stdout, cs_etm_priv_fmts[CS_ETM_CPU], val[i++]);
+
+ if (magic == __perf_cs_etmv3_magic) {
+ nr_params = CS_ETM_NR_TRC_PARAMS_V0;
+ fmt_offset = CS_ETM_ETMCR;
+ /* after common block, offset format index past NR_PARAMS */
+ for (j = fmt_offset; j < nr_params + fmt_offset; j++, i++)
+ fprintf(stdout, cs_etm_priv_fmts[j], val[i]);
+ } else if (magic == __perf_cs_etmv4_magic) {
+ nr_params = CS_ETMV4_NR_TRC_PARAMS_V0;
+ fmt_offset = CS_ETMV4_TRCCONFIGR;
+ /* after common block, offset format index past NR_PARAMS */
+ for (j = fmt_offset; j < nr_params + fmt_offset; j++, i++)
+ fprintf(stdout, cs_etmv4_priv_fmts[j], val[i]);
+ }
+ *offset = i;
+ return 0;
+}
+
+static int cs_etm__print_cpu_metadata_v1(u64 *val, int *offset)
+{
+ int i = *offset, j, total_params = 0;
+ u64 magic;
+
+ magic = val[i + CS_ETM_MAGIC];
+ /* total params to print is NR_PARAMS + common block size for v1 */
+ total_params = val[i + CS_ETM_NR_TRC_PARAMS] + CS_ETM_COMMON_BLK_MAX_V1;
+
+ if (magic == __perf_cs_etmv3_magic) {
+ for (j = 0; j < total_params; j++, i++) {
+ /* if newer record - could be excess params */
+ if (j >= CS_ETM_PRIV_MAX)
+ fprintf(stdout, param_unk_fmt, j, val[i]);
+ else
+ fprintf(stdout, cs_etm_priv_fmts[j], val[i]);
+ }
+ } else if (magic == __perf_cs_etmv4_magic || magic == __perf_cs_ete_magic) {
+ /*
+ * ETE and ETMv4 can be printed in the same block because the number of parameters
+ * is saved and they share the list of parameter names. ETE is also only supported
+ * in V1 files.
+ */
+ for (j = 0; j < total_params; j++, i++) {
+ /* if newer record - could be excess params */
+ if (j >= CS_ETE_PRIV_MAX)
+ fprintf(stdout, param_unk_fmt, j, val[i]);
+ else
+ fprintf(stdout, cs_etmv4_priv_fmts[j], val[i]);
+ }
+ } else {
+ /* failure - note bad magic value and error out */
+ fprintf(stdout, magic_unk_fmt, magic);
+ return -EINVAL;
+ }
+ *offset = i;
+ return 0;
+}
+
+static void cs_etm__print_auxtrace_info(u64 *val, int num)
+{
+ int i, cpu = 0, version, err;
+
+ version = val[0];
+
+ for (i = 0; i < CS_HEADER_VERSION_MAX; i++)
+ fprintf(stdout, cs_etm_global_header_fmts[i], val[i]);
+
+ for (i = CS_HEADER_VERSION_MAX; cpu < num; cpu++) {
+ if (version == 0)
+ err = cs_etm__print_cpu_metadata_v0(val, &i);
+ else if (version == 1)
+ err = cs_etm__print_cpu_metadata_v1(val, &i);
+ if (err)
+ return;
+ }
+}
+
+/*
+ * Do some basic checks and print the auxtrace info header before calling
+ * into cs_etm__process_auxtrace_info_full() which requires OpenCSD to be
+ * linked in. This allows some basic debugging if OpenCSD is missing.
+ */
+int cs_etm__process_auxtrace_info(union perf_event *event,
+ struct perf_session *session)
+{
+ struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info;
+ int event_header_size = sizeof(struct perf_event_header);
+ int num_cpu;
+ u64 *ptr = NULL;
+ u64 hdr_version;
+
+ if (auxtrace_info->header.size < (event_header_size + INFO_HEADER_SIZE))
+ return -EINVAL;
+
+ /* First the global part */
+ ptr = (u64 *) auxtrace_info->priv;
+
+ /* Look for version of the header */
+ hdr_version = ptr[0];
+ if (hdr_version > CS_HEADER_CURRENT_VERSION) {
+ pr_err("\nCS ETM Trace: Unknown Header Version = %#" PRIx64, hdr_version);
+ pr_err(", version supported <= %x\n", CS_HEADER_CURRENT_VERSION);
+ return -EINVAL;
+ }
+
+ if (dump_trace) {
+ num_cpu = ptr[CS_PMU_TYPE_CPUS] & 0xffffffff;
+ cs_etm__print_auxtrace_info(ptr, num_cpu);
+ }
+
+ return cs_etm__process_auxtrace_info_full(event, session);
+}
return timeless_decoding;
}
-static const char * const cs_etm_global_header_fmts[] = {
- [CS_HEADER_VERSION] = " Header version %llx\n",
- [CS_PMU_TYPE_CPUS] = " PMU type/num cpus %llx\n",
- [CS_ETM_SNAPSHOT] = " Snapshot %llx\n",
-};
-
-static const char * const cs_etm_priv_fmts[] = {
- [CS_ETM_MAGIC] = " Magic number %llx\n",
- [CS_ETM_CPU] = " CPU %lld\n",
- [CS_ETM_NR_TRC_PARAMS] = " NR_TRC_PARAMS %llx\n",
- [CS_ETM_ETMCR] = " ETMCR %llx\n",
- [CS_ETM_ETMTRACEIDR] = " ETMTRACEIDR %llx\n",
- [CS_ETM_ETMCCER] = " ETMCCER %llx\n",
- [CS_ETM_ETMIDR] = " ETMIDR %llx\n",
-};
-
-static const char * const cs_etmv4_priv_fmts[] = {
- [CS_ETM_MAGIC] = " Magic number %llx\n",
- [CS_ETM_CPU] = " CPU %lld\n",
- [CS_ETM_NR_TRC_PARAMS] = " NR_TRC_PARAMS %llx\n",
- [CS_ETMV4_TRCCONFIGR] = " TRCCONFIGR %llx\n",
- [CS_ETMV4_TRCTRACEIDR] = " TRCTRACEIDR %llx\n",
- [CS_ETMV4_TRCIDR0] = " TRCIDR0 %llx\n",
- [CS_ETMV4_TRCIDR1] = " TRCIDR1 %llx\n",
- [CS_ETMV4_TRCIDR2] = " TRCIDR2 %llx\n",
- [CS_ETMV4_TRCIDR8] = " TRCIDR8 %llx\n",
- [CS_ETMV4_TRCAUTHSTATUS] = " TRCAUTHSTATUS %llx\n",
- [CS_ETE_TRCDEVARCH] = " TRCDEVARCH %llx\n"
-};
-
-static const char * const param_unk_fmt =
- " Unknown parameter [%d] %"PRIx64"\n";
-static const char * const magic_unk_fmt =
- " Magic number Unknown %"PRIx64"\n";
-
-static int cs_etm__print_cpu_metadata_v0(u64 *val, int *offset)
-{
- int i = *offset, j, nr_params = 0, fmt_offset;
- u64 magic;
-
- /* check magic value */
- magic = val[i + CS_ETM_MAGIC];
- if ((magic != __perf_cs_etmv3_magic) &&
- (magic != __perf_cs_etmv4_magic)) {
- /* failure - note bad magic value */
- fprintf(stdout, magic_unk_fmt, magic);
- return -EINVAL;
- }
-
- /* print common header block */
- fprintf(stdout, cs_etm_priv_fmts[CS_ETM_MAGIC], val[i++]);
- fprintf(stdout, cs_etm_priv_fmts[CS_ETM_CPU], val[i++]);
-
- if (magic == __perf_cs_etmv3_magic) {
- nr_params = CS_ETM_NR_TRC_PARAMS_V0;
- fmt_offset = CS_ETM_ETMCR;
- /* after common block, offset format index past NR_PARAMS */
- for (j = fmt_offset; j < nr_params + fmt_offset; j++, i++)
- fprintf(stdout, cs_etm_priv_fmts[j], val[i]);
- } else if (magic == __perf_cs_etmv4_magic) {
- nr_params = CS_ETMV4_NR_TRC_PARAMS_V0;
- fmt_offset = CS_ETMV4_TRCCONFIGR;
- /* after common block, offset format index past NR_PARAMS */
- for (j = fmt_offset; j < nr_params + fmt_offset; j++, i++)
- fprintf(stdout, cs_etmv4_priv_fmts[j], val[i]);
- }
- *offset = i;
- return 0;
-}
-
-static int cs_etm__print_cpu_metadata_v1(u64 *val, int *offset)
-{
- int i = *offset, j, total_params = 0;
- u64 magic;
-
- magic = val[i + CS_ETM_MAGIC];
- /* total params to print is NR_PARAMS + common block size for v1 */
- total_params = val[i + CS_ETM_NR_TRC_PARAMS] + CS_ETM_COMMON_BLK_MAX_V1;
-
- if (magic == __perf_cs_etmv3_magic) {
- for (j = 0; j < total_params; j++, i++) {
- /* if newer record - could be excess params */
- if (j >= CS_ETM_PRIV_MAX)
- fprintf(stdout, param_unk_fmt, j, val[i]);
- else
- fprintf(stdout, cs_etm_priv_fmts[j], val[i]);
- }
- } else if (magic == __perf_cs_etmv4_magic || magic == __perf_cs_ete_magic) {
- /*
- * ETE and ETMv4 can be printed in the same block because the number of parameters
- * is saved and they share the list of parameter names. ETE is also only supported
- * in V1 files.
- */
- for (j = 0; j < total_params; j++, i++) {
- /* if newer record - could be excess params */
- if (j >= CS_ETE_PRIV_MAX)
- fprintf(stdout, param_unk_fmt, j, val[i]);
- else
- fprintf(stdout, cs_etmv4_priv_fmts[j], val[i]);
- }
- } else {
- /* failure - note bad magic value and error out */
- fprintf(stdout, magic_unk_fmt, magic);
- return -EINVAL;
- }
- *offset = i;
- return 0;
-}
-
-static void cs_etm__print_auxtrace_info(u64 *val, int num)
-{
- int i, cpu = 0, version, err;
-
- version = val[0];
-
- for (i = 0; i < CS_HEADER_VERSION_MAX; i++)
- fprintf(stdout, cs_etm_global_header_fmts[i], val[i]);
-
- for (i = CS_HEADER_VERSION_MAX; cpu < num; cpu++) {
- if (version == 0)
- err = cs_etm__print_cpu_metadata_v0(val, &i);
- else if (version == 1)
- err = cs_etm__print_cpu_metadata_v1(val, &i);
- if (err)
- return;
- }
-}
-
/*
* Read a single cpu parameter block from the auxtrace_info priv block.
*
return 0;
}
-int cs_etm__process_auxtrace_info(union perf_event *event,
- struct perf_session *session)
+int cs_etm__process_auxtrace_info_full(union perf_event *event,
+ struct perf_session *session)
{
struct perf_record_auxtrace_info *auxtrace_info = &event->auxtrace_info;
struct cs_etm_auxtrace *etm = NULL;
struct int_node *inode;
- unsigned int pmu_type;
int event_header_size = sizeof(struct perf_event_header);
- int info_header_size;
int total_size = auxtrace_info->header.size;
int priv_size = 0;
int num_cpu, trcidr_idx;
int i, j;
u64 *ptr = NULL;
u64 **metadata = NULL;
- u64 hdr_version;
-
- /*
- * sizeof(auxtrace_info_event::type) +
- * sizeof(auxtrace_info_event::reserved) == 8
- */
- info_header_size = 8;
-
- if (total_size < (event_header_size + info_header_size))
- return -EINVAL;
-
- priv_size = total_size - event_header_size - info_header_size;
-
- /* First the global part */
- ptr = (u64 *) auxtrace_info->priv;
-
- /* Look for version of the header */
- hdr_version = ptr[0];
- if (hdr_version > CS_HEADER_CURRENT_VERSION) {
- pr_err("\nCS ETM Trace: Unknown Header Version = %#" PRIx64, hdr_version);
- pr_err(", version supported <= %x\n", CS_HEADER_CURRENT_VERSION);
- return -EINVAL;
- }
-
- num_cpu = ptr[CS_PMU_TYPE_CPUS] & 0xffffffff;
- pmu_type = (unsigned int) ((ptr[CS_PMU_TYPE_CPUS] >> 32) &
- 0xffffffff);
-
- if (dump_trace)
- cs_etm__print_auxtrace_info(ptr, num_cpu);
/*
* Create an RB tree for traceID-metadata tuple. Since the conversion
if (!traceid_list)
return -ENOMEM;
+ /* First the global part */
+ ptr = (u64 *) auxtrace_info->priv;
+ num_cpu = ptr[CS_PMU_TYPE_CPUS] & 0xffffffff;
metadata = zalloc(sizeof(*metadata) * num_cpu);
if (!metadata) {
err = -ENOMEM;
* The following tests if the correct number of double words was
* present in the auxtrace info section.
*/
+ priv_size = total_size - event_header_size - INFO_HEADER_SIZE;
if (i * 8 != priv_size) {
err = -EINVAL;
goto err_free_metadata;
etm->machine = &session->machines.host;
etm->num_cpu = num_cpu;
- etm->pmu_type = pmu_type;
+ etm->pmu_type = (unsigned int) ((ptr[CS_PMU_TYPE_CPUS] >> 32) & 0xffffffff);
etm->snapshot_mode = (ptr[CS_ETM_SNAPSHOT] != 0);
etm->metadata = metadata;
etm->auxtrace_type = auxtrace_info->type;
#define CS_ETMV4_PRIV_SIZE (CS_ETMV4_PRIV_MAX * sizeof(u64))
#define CS_ETE_PRIV_SIZE (CS_ETE_PRIV_MAX * sizeof(u64))
-#ifdef HAVE_CSTRACE_SUPPORT
+#define INFO_HEADER_SIZE (sizeof(((struct perf_record_auxtrace_info *)0)->type) + \
+ sizeof(((struct perf_record_auxtrace_info *)0)->reserved__))
+
int cs_etm__process_auxtrace_info(union perf_event *event,
struct perf_session *session);
+
+#ifdef HAVE_CSTRACE_SUPPORT
int cs_etm__get_cpu(u8 trace_chan_id, int *cpu);
int cs_etm__get_pid_fmt(u8 trace_chan_id, u64 *pid_fmt);
int cs_etm__etmq_set_tid(struct cs_etm_queue *etmq,
u8 trace_chan_id);
struct cs_etm_packet_queue
*cs_etm__etmq_get_packet_queue(struct cs_etm_queue *etmq, u8 trace_chan_id);
+int cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused,
+ struct perf_session *session __maybe_unused);
#else
static inline int
-cs_etm__process_auxtrace_info(union perf_event *event __maybe_unused,
- struct perf_session *session __maybe_unused)
+cs_etm__process_auxtrace_info_full(union perf_event *event __maybe_unused,
+ struct perf_session *session __maybe_unused)
{
pr_err("\nCS ETM Trace: OpenCSD is not linked in, please recompile with CORESIGHT=1\n");
return -1;
projects / linux.git / commitdiff