mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 05:56:56 +07:00
17534ceb83
TraceID values have to be unique for all tracers and consistent between drivers and user space. As such introducing a central function to be used whenever a traceID value is required. The patch also account for data traceIDs, which are usually I(N) + 1. Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
/*
|
|
* 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 _LINUX_CORESIGHT_PMU_H
|
|
#define _LINUX_CORESIGHT_PMU_H
|
|
|
|
#define CORESIGHT_ETM_PMU_NAME "cs_etm"
|
|
#define CORESIGHT_ETM_PMU_SEED 0x10
|
|
|
|
/* ETMv3.5/PTM's ETMCR config bit */
|
|
#define ETM_OPT_CYCACC 12
|
|
#define ETM_OPT_TS 28
|
|
|
|
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));
|
|
}
|
|
|
|
#endif
|