diff options
Diffstat (limited to 'tools/tracing/rtla/src/timerlat_bpf.c')
| -rw-r--r-- | tools/tracing/rtla/src/timerlat_bpf.c | 36 |
1 files changed, 25 insertions, 11 deletions
diff --git a/tools/tracing/rtla/src/timerlat_bpf.c b/tools/tracing/rtla/src/timerlat_bpf.c index 5abee884037a..e97d16646bcd 100644 --- a/tools/tracing/rtla/src/timerlat_bpf.c +++ b/tools/tracing/rtla/src/timerlat_bpf.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #ifdef HAVE_BPF_SKEL +#define _GNU_SOURCE #include "timerlat.h" #include "timerlat_bpf.h" #include "timerlat.skel.h" @@ -20,20 +21,20 @@ int timerlat_bpf_init(struct timerlat_params *params) return 1; /* Pass common options */ - bpf->rodata->output_divisor = params->output_divisor; - bpf->rodata->entries = params->entries; - bpf->rodata->irq_threshold = params->stop_us; - bpf->rodata->thread_threshold = params->stop_total_us; - bpf->rodata->aa_only = params->aa_only; + bpf->rodata->output_divisor = params->common.output_divisor; + bpf->rodata->entries = params->common.hist.entries; + bpf->rodata->irq_threshold = params->common.stop_us; + bpf->rodata->thread_threshold = params->common.stop_total_us; + bpf->rodata->aa_only = params->common.aa_only; - if (params->entries != 0) { + if (params->common.hist.entries != 0) { /* Pass histogram options */ - bpf->rodata->bucket_size = params->bucket_size; + bpf->rodata->bucket_size = params->common.hist.bucket_size; /* Set histogram array sizes */ - bpf_map__set_max_entries(bpf->maps.hist_irq, params->entries); - bpf_map__set_max_entries(bpf->maps.hist_thread, params->entries); - bpf_map__set_max_entries(bpf->maps.hist_user, params->entries); + bpf_map__set_max_entries(bpf->maps.hist_irq, params->common.hist.entries); + bpf_map__set_max_entries(bpf->maps.hist_thread, params->common.hist.entries); + bpf_map__set_max_entries(bpf->maps.hist_user, params->common.hist.entries); } else { /* No entries, disable histogram */ bpf_map__set_autocreate(bpf->maps.hist_irq, false); @@ -41,7 +42,7 @@ int timerlat_bpf_init(struct timerlat_params *params) bpf_map__set_autocreate(bpf->maps.hist_user, false); } - if (params->aa_only) { + if (params->common.aa_only) { /* Auto-analysis only, disable summary */ bpf_map__set_autocreate(bpf->maps.summary_irq, false); bpf_map__set_autocreate(bpf->maps.summary_thread, false); @@ -105,6 +106,19 @@ int timerlat_bpf_wait(int timeout) return retval; } +/* + * timerlat_bpf_restart_tracing - restart stopped tracing + */ +int timerlat_bpf_restart_tracing(void) +{ + unsigned int key = 0; + unsigned long long value = 0; + + return bpf_map__update_elem(bpf->maps.stop_tracing, + &key, sizeof(key), + &value, sizeof(value), BPF_ANY); +} + static int get_value(struct bpf_map *map_irq, struct bpf_map *map_thread, struct bpf_map *map_user, |