diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-etm-perf.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-etm-perf.h | 52 |
1 files changed, 34 insertions, 18 deletions
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.h b/drivers/hwtracing/coresight/coresight-etm-perf.h index 3ffc9feb2d64..5febbcdb8696 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.h +++ b/drivers/hwtracing/coresight/coresight-etm-perf.h @@ -1,26 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright(C) 2015 Linaro Limited. All rights reserved. * Author: Mathieu Poirier <mathieu.poirier@linaro.org> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * This program is distributed in the hope that 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. - * - * You should have received a copy of the GNU General Public License along with - * this program. If not, see <http://www.gnu.org/licenses/>. */ #ifndef _CORESIGHT_ETM_PERF_H #define _CORESIGHT_ETM_PERF_H +#include <linux/percpu-defs.h> #include "coresight-priv.h" struct coresight_device; +struct cscfg_config_desc; /* * In both ETMv3 and v4 the maximum number of address comparator implentable @@ -53,14 +44,39 @@ struct etm_filters { bool ssstatus; }; +/** + * struct etm_event_data - Coresight specifics associated to an event + * @work: Handle to free allocated memory outside IRQ context. + * @mask: Hold the CPU(s) this event was set for. + * @aux_hwid_done: Whether a CPU has emitted the TraceID packet or not. + * @snk_config: The sink configuration. + * @cfg_hash: The hash id of any coresight config selected. + * @path: An array of path, each slot for one CPU. + */ +struct etm_event_data { + struct work_struct work; + cpumask_t mask; + cpumask_t aux_hwid_done; + void *snk_config; + u32 cfg_hash; + struct coresight_path * __percpu *path; +}; -#ifdef CONFIG_CORESIGHT int etm_perf_symlink(struct coresight_device *csdev, bool link); +int etm_perf_add_symlink_sink(struct coresight_device *csdev); +void etm_perf_del_symlink_sink(struct coresight_device *csdev); +static inline void *etm_perf_sink_config(struct perf_output_handle *handle) +{ + struct etm_event_data *data = perf_get_aux(handle); -#else -static inline int etm_perf_symlink(struct coresight_device *csdev, bool link) -{ return -EINVAL; } - -#endif /* CONFIG_CORESIGHT */ + if (data) + return data->snk_config; + return NULL; +} +int etm_perf_add_symlink_cscfg(struct device *dev, + struct cscfg_config_desc *config_desc); +void etm_perf_del_symlink_cscfg(struct cscfg_config_desc *config_desc); +int __init etm_perf_init(void); +void etm_perf_exit(void); #endif |