diff options
Diffstat (limited to 'drivers/misc/tegra-profiler/debug.c')
| -rw-r--r-- | drivers/misc/tegra-profiler/debug.c | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/drivers/misc/tegra-profiler/debug.c b/drivers/misc/tegra-profiler/debug.c new file mode 100644 index 000000000000..e0270a310ae4 --- /dev/null +++ b/drivers/misc/tegra-profiler/debug.c @@ -0,0 +1,164 @@ +/* + * drivers/misc/tegra-profiler/debug.c + * + * Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#include <linux/module.h> +#include <asm/irq_regs.h> + +#include <linux/tegra_profiler.h> + +#include "debug.h" +#include "hrt.h" +#include "tegra.h" + +#ifdef QM_DEBUG_SAMPLES_ENABLE + +static inline void +init_sample(struct quadd_record_data *record, struct pt_regs *regs) +{ + struct quadd_debug_data *s = &record->debug; + + record->magic = QUADD_RECORD_MAGIC; + record->record_type = QUADD_RECORD_TYPE_DEBUG; + + if (!regs) + regs = get_irq_regs(); + + if (!regs) + record->cpu_mode = QUADD_CPU_MODE_NONE; + else + record->cpu_mode = user_mode(regs) ? + QUADD_CPU_MODE_USER : QUADD_CPU_MODE_KERNEL; + + s->cpu = quadd_get_processor_id(); + s->pid = 0; + s->time = quadd_get_time(); + s->timer_period = 0; + + s->extra_value1 = 0; + s->extra_value2 = 0; + s->extra_value3 = 0; +} + +void qm_debug_handler_sample(struct pt_regs *regs) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, regs); + + s->type = QM_DEBUG_SAMPLE_TYPE_TIMER_HANDLE; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_timer_forward(struct pt_regs *regs, u64 period) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, regs); + + s->type = QM_DEBUG_SAMPLE_TYPE_TIMER_FORWARD; + s->timer_period = period; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_timer_start(struct pt_regs *regs, u64 period) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, regs); + + s->type = QM_DEBUG_SAMPLE_TYPE_TIMER_START; + s->timer_period = period; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_timer_cancel(void) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, NULL); + + s->type = QM_DEBUG_SAMPLE_TYPE_TIMER_CANCEL; + + quadd_put_sample(&record, NULL, 0); +} + +void +qm_debug_task_sched_in(pid_t prev_pid, pid_t current_pid, int prev_nr_active) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, NULL); + + s->type = QM_DEBUG_SAMPLE_TYPE_SCHED_IN; + + s->extra_value1 = prev_pid; + s->extra_value2 = current_pid; + s->extra_value3 = prev_nr_active; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_read_counter(int event_id, u32 prev_val, u32 val) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, NULL); + + s->type = QM_DEBUG_SAMPLE_TYPE_READ_COUNTER; + + s->extra_value1 = event_id; + s->extra_value2 = prev_val; + s->extra_value3 = val; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_start_source(int source_type) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, NULL); + + s->type = QM_DEBUG_SAMPLE_TYPE_SOURCE_START; + s->extra_value1 = source_type; + + quadd_put_sample(&record, NULL, 0); +} + +void qm_debug_stop_source(int source_type) +{ + struct quadd_record_data record; + struct quadd_debug_data *s = &record.debug; + + init_sample(&record, NULL); + + s->type = QM_DEBUG_SAMPLE_TYPE_SOURCE_STOP; + s->extra_value1 = source_type; + + quadd_put_sample(&record, NULL, 0); +} + +#endif /* QM_DEBUG_SAMPLES_ENABLE */ |