static int px_tp_d_release(struct inode *inode, struct file *fp) { g_client_count--; if (g_client_count == 0) { /* stop profiling in case it is still running */ stop_profiling(); /* free buffers in case they are not freed */ free_event_buffer(); free_module_buffer(); } return 0; }
/* * allocate module buffer */ static int allocate_module_buffer(unsigned int *size) { int ret; unsigned int buffer_size; void * address; if (copy_from_user(&buffer_size, size, sizeof(unsigned int)) != 0) { return -EFAULT; } buffer_size = PAGE_ALIGN(buffer_size); /* free kernel buffers if it is already allocated */ free_module_buffer(); //address = __vmalloc(buffer_size, GFP_KERNEL, pgprot_noncached(PAGE_KERNEL)); address = vmalloc(buffer_size); if (address == NULL) { ret = -ENOMEM; goto error; } g_module_buffer_hs.buffer.address = address; g_module_buffer_hs.buffer.size = buffer_size; g_module_buffer_hs.buffer.read_offset = 0; g_module_buffer_hs.buffer.write_offset = 0; // g_module_buffer_hs.buffer.is_data_lost = false; g_module_buffer_hs.is_full_event_set = false; if (copy_to_user(size, &buffer_size, sizeof(unsigned int)) != 0) { ret = -EFAULT; goto error; } return 0; error: if (address != NULL) vfree(address); return ret; }
static int px_hotspot_d_release(struct inode *inode, struct file *fp) { if ((fp->f_flags & O_ACCMODE) == O_RDONLY) return 0; g_client_count--; if (g_client_count == 0) { /* stop profiling in case it is still running */ stop_profiling(); /* free buffers in case they are not freed */ free_all_sample_buffers(); free_module_buffer(); g_sample_count_hs = 0; } return 0; }
static long px_tp_d_ioctl( struct file *fp, unsigned int cmd, unsigned long arg) #endif { switch (cmd) { case PX_TP_CMD_START_MODULE_TRACKING: return start_module_tracking(); case PX_TP_CMD_START_SAMPLING: return start_sampling((bool *)arg); case PX_TP_CMD_STOP_PROFILING: return stop_profiling(); case PX_TP_CMD_PAUSE_PROFILING: return pause_profiling(); case PX_TP_CMD_RESUME_PROFILING: return resume_profiling(); case PX_TP_CMD_ALLOC_EVENT_BUFFER: return allocate_event_buffer((unsigned int *)arg); case PX_TP_CMD_ALLOC_MODULE_BUFFER: return allocate_module_buffer((unsigned int *)arg); case PX_TP_CMD_FREE_EVENT_BUFFER: return free_event_buffer(); case PX_TP_CMD_FREE_MODULE_BUFFER: return free_module_buffer(); case PX_TP_CMD_SET_AUTO_LAUNCH_APP_PID: return set_auto_launch_app_pid((pid_t *)arg); case PX_TP_CMD_SET_WAIT_IMAGE_LOAD_NAME: return set_wait_image_load_name((char *)arg); case PX_TP_CMD_QUERY_REQUEST: return query_request((struct query_request_data *)arg); case PX_TP_CMD_GET_CPU_ID: return get_cpu_id((unsigned long *)arg); case PX_TP_CMD_GET_TARGET_RAW_DATA_LENGTH: return get_target_raw_data_length((unsigned long *)arg); case PX_TP_CMD_GET_TARGET_INFO: return get_target_info((unsigned long *)arg); case PX_TP_CMD_GET_CPU_FREQ: return get_cpu_freq((unsigned int *)arg); case PX_TP_CMD_GET_TIMESTAMP_FREQ: return get_timestamp_frequency((unsigned long *)arg); case PX_TP_CMD_GET_TIMESTAMP: return get_time_stamp((unsigned long long *)arg); case PX_TP_CMD_ADD_MODULE_RECORD: return add_module_record((struct add_module_data *)arg); #if 0 case PX_TP_CMD_RESET_EVENT_BUFFER_FULL: return reset_event_buffer_full((bool *)arg); case PX_TP_CMD_RESET_MODULE_BUFFER_FULL: return reset_module_buffer_full((bool *)arg); #endif // case PX_TP_CMD_SET_KERNEL_FUNC_ADDR: // return set_kernel_func_addr((struct tp_kernel_func_addr *)arg); // case PX_TP_CMD_HOOK_ADDRESS: // return hook_address((struct tp_hook_address *)arg); case PX_TP_CMD_READ_EVENT_BUFFER: return read_event_buffer((struct read_buffer_data *)arg); case PX_TP_CMD_READ_MODULE_BUFFER: return read_module_buffer((struct read_buffer_data *)arg); case PX_TP_CMD_GET_POSSIBLE_CPU_NUM: return get_possible_cpu_number((unsigned int *)arg); case PX_TP_CMD_GET_ONLINE_CPU_NUM: return get_online_cpu_number((unsigned int *)arg); default: return -EINVAL; } }
static long px_hotspot_d_ioctl(struct file *fp, unsigned int cmd, unsigned long arg) #endif { int ret; if ((ret = check_ioctl(fp, cmd, arg)) != 0) return ret; switch (cmd) { case PX_HS_CMD_START_MODULE_TRACKING: return start_module_tracking_hs(); case PX_HS_CMD_START_SAMPLING: return start_sampling((bool *)arg); case PX_HS_CMD_STOP_PROFILING: return stop_profiling(); case PX_HS_CMD_PAUSE_PROFILING: return pause_profiling(); case PX_HS_CMD_RESUME_PROFILING: return resume_profiling(); case PX_HS_CMD_ALLOC_SAMPLE_BUFFER: return allocate_all_sample_buffers((unsigned int *)arg); case PX_HS_CMD_ALLOC_MODULE_BUFFER: return allocate_module_buffer((unsigned int *)arg); case PX_HS_CMD_FREE_SAMPLE_BUFFER: return free_all_sample_buffers(); case PX_HS_CMD_FREE_MODULE_BUFFER: return free_module_buffer(); case PX_HS_CMD_SET_AUTO_LAUNCH_APP_PID: return set_auto_launch_app_pid((pid_t *)arg); case PX_HS_CMD_SET_WAIT_IMAGE_LOAD_NAME: return set_wait_image_load_name((char *)arg); case PX_HS_CMD_SET_TBS_SETTINGS: return set_tbs_settings((struct HSTimerSettings *)arg); case PX_HS_CMD_SET_EBS_SETTINGS: return set_ebs_settings((struct HSEventSettings *)arg); case PX_HS_CMD_SET_CALIBRATION_MODE: return set_calibration_mode((bool *)arg); case PX_HS_CMD_QUERY_REQUEST: return query_request((struct query_request_data *)arg); case PX_HS_CMD_GET_CALIBRATION_RESULT: return get_calibration_result((struct calibration_result *)arg); case PX_HS_CMD_GET_CPU_ID: return get_cpu_id((unsigned long *)arg); case PX_HS_CMD_GET_TARGET_RAW_DATA_LENGTH: return get_target_raw_data_length((unsigned long *)arg); case PX_HS_CMD_GET_TARGET_INFO: return get_target_info((unsigned long *)arg); case PX_HS_CMD_GET_CPU_FREQ: return get_cpu_freq((unsigned int *)arg); case PX_HS_CMD_GET_TIMESTAMP_FREQ: return get_timestamp_frequency((unsigned long *)arg); case PX_HS_CMD_GET_TIMESTAMP: return get_time_stamp((unsigned long long *)arg); case PX_HS_CMD_ADD_MODULE_RECORD: return add_module_record_hs((struct add_module_data *)arg); case PX_HS_CMD_READ_SAMPLE_BUFFER: return read_sample_buffer((struct read_buffer_data *)arg); case PX_HS_CMD_READ_MODULE_BUFFER: return read_module_buffer((struct read_buffer_data *)arg); case PX_HS_CMD_READ_TOTAL_SAMPLE_COUNT: return read_total_sample_count((unsigned long long *)arg); case PX_HS_CMD_GET_POSSIBLE_CPU_NUM: return get_possible_cpu_number((unsigned int *)arg); case PX_HS_CMD_GET_ONLINE_CPU_NUM: return get_online_cpu_number((unsigned int *)arg); default: return -EINVAL; } }