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/*
* 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 "coresight-priv.h"
struct coresight_device;
/*
* 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;
};
#ifdef CONFIG_CORESIGHT
int etm_perf_symlink(struct coresight_device *csdev, bool link);
#else
static inline int etm_perf_symlink(struct coresight_device *csdev, bool link)
{ return -EINVAL; }
#endif /* CONFIG_CORESIGHT */
#endif
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