cregit-Linux how code gets into the kernel

Release 4.14 tools/include/linux/coresight-pmu.h

 * Copyright(C) 2015 Linaro Limited. All rights reserved.
 * Author: Mathieu Poirier <>
 * 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 <>.



#define CORESIGHT_ETM_PMU_NAME "cs_etm"


/* ETMv3.5/PTM's ETMCR config bit */

#define ETM_OPT_CYCACC  12

#define ETM_OPT_TS      28

#define ETM_OPT_RETSTK	29

/* ETMv4 CONFIGR programming bits for the ETM OPTs */


#define ETM4_CFG_BIT_TS		11

#define ETM4_CFG_BIT_RETSTK	12

static inline int coresight_get_trace_id(int cpu) { /* * A trace ID of value 0 is invalid, so let's start at some * random value that fits in 7 bits and go from there. Since * the common convention is to have data trace IDs be I(N) + 1, * set instruction trace IDs as a function of the CPU number. */ return (CORESIGHT_ETM_PMU_SEED + (cpu * 2)); }


Mathieu J. Poirier22100.00%1100.00%


Overall Contributors

Mathieu J. Poirier4873.85%133.33%
Mike Leach1726.15%266.67%
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