cregit-Linux how code gets into the kernel

Release 4.14 drivers/hwtracing/coresight/coresight-etm-perf.h

/*
 * 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; }

Contributors

PersonTokensPropCommitsCommitProp
Mathieu J. Poirier19100.00%1100.00%
Total19100.00%1100.00%

#endif /* CONFIG_CORESIGHT */ #endif

Overall Contributors

PersonTokensPropCommitsCommitProp
Mathieu J. Poirier97100.00%2100.00%
Total97100.00%2100.00%
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