forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
2.8 KiB
98 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
/* |
|
* Copyright(C) 2015 Linaro Limited. All rights reserved. |
|
* Author: Mathieu Poirier <[email protected]> |
|
*/ |
|
|
|
#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 |
|
* is 8. The actual number is implementation specific and will be checked |
|
* when filters are applied. |
|
*/ |
|
#define ETM_ADDR_CMP_MAX 8 |
|
|
|
/** |
|
* struct etm_filter - single instruction range or start/stop configuration. |
|
* @start_addr: The address to start tracing on. |
|
* @stop_addr: The address to stop tracing on. |
|
* @type: Is this a range or start/stop filter. |
|
*/ |
|
struct etm_filter { |
|
unsigned long start_addr; |
|
unsigned long stop_addr; |
|
enum etm_addr_type type; |
|
}; |
|
|
|
/** |
|
* struct etm_filters - set of filters for a session |
|
* @etm_filter: All the filters for this session. |
|
* @nr_filters: Number of filters |
|
* @ssstatus: Status of the start/stop logic. |
|
*/ |
|
struct etm_filters { |
|
struct etm_filter etm_filter[ETM_ADDR_CMP_MAX]; |
|
unsigned int nr_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. |
|
* @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; |
|
void *snk_config; |
|
u32 cfg_hash; |
|
struct list_head * __percpu *path; |
|
}; |
|
|
|
#if IS_ENABLED(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); |
|
|
|
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); |
|
#else |
|
static inline int etm_perf_symlink(struct coresight_device *csdev, bool link) |
|
{ return -EINVAL; } |
|
int etm_perf_add_symlink_sink(struct coresight_device *csdev) |
|
{ return -EINVAL; } |
|
void etm_perf_del_symlink_sink(struct coresight_device *csdev) {} |
|
static inline void *etm_perf_sink_config(struct perf_output_handle *handle) |
|
{ |
|
return NULL; |
|
} |
|
int etm_perf_add_symlink_cscfg(struct device *dev, |
|
struct cscfg_config_desc *config_desc) |
|
{ return -EINVAL; } |
|
void etm_perf_del_symlink_cscfg(struct cscfg_config_desc *config_desc) {} |
|
|
|
#endif /* CONFIG_CORESIGHT */ |
|
|
|
int __init etm_perf_init(void); |
|
void etm_perf_exit(void); |
|
|
|
#endif
|
|
|