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https://gitlab.rtems.org/rtems/rtos/rtems.git
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116 lines
4.1 KiB
C
116 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* L4STAT APB-Register Driver.
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*
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* COPYRIGHT (c) 2017.
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* Cobham Gaisler AB.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __L4STAT_H__
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#define __L4STAT_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define L4STAT_ERR_OK 0
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#define L4STAT_ERR_EINVAL -1
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#define L4STAT_ERR_ERROR -2
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#define L4STAT_ERR_TOOMANY -3
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#define L4STAT_ERR_IMPLEMENTED -4
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/* Register L4STAT driver to Driver Manager */
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void l4stat_register_drv( void );
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extern int l4stat_counter_print( unsigned int counter );
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/*
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* L4STAT CCTRL register fields
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*/
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#define CCTRL_NCPU ( 0xf << CCTRL_NCPU_BIT )
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#define CCTRL_NCNT_L3STAT ( 0x1ff << CCTRL_NCNT_BIT )
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#define CCTRL_NCNT ( 0x1f << CCTRL_NCNT_BIT )
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#define CCTRL_MC ( 0x1 << CCTRL_MC_BIT )
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#define CCTRL_IA ( 0x1 << CCTRL_IA_BIT )
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#define CCTRL_DS ( 0x1 << CCTRL_DS_BIT )
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#define CCTRL_EE ( 0x1 << CCTRL_EE_BIT )
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#define CCTRL_AE ( 0x1 << CCTRL_AE_BIT )
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#define CCTRL_EL ( 0x1 << CCTRL_EL_BIT )
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#define CCTRL_CD ( 0x1 << CCTRL_CD_BIT )
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#define CCTRL_SU ( 0x3 << CCTRL_SU_BIT )
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#define CCTRL_CL ( 0x1 << CCTRL_CL_BIT )
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#define CCTRL_EN ( 0x1 << CCTRL_EN_BIT )
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#define CCTRL_EVENTID ( 0xff << CCTRL_EVENTID_BIT )
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#define CCTRL_CPUAHBM ( 0xf << CCTRL_CPUAHBM_BIT )
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#define CCTRL_NCPU_BIT 28
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#define CCTRL_NCNT_BIT 23
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#define CCTRL_MC_BIT 22
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#define CCTRL_IA_BIT 21
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#define CCTRL_DS_BIT 20
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#define CCTRL_EE_BIT 19
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#define CCTRL_AE_BIT 18
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#define CCTRL_EL_BIT 17
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#define CCTRL_CD_BIT 16
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#define CCTRL_SU_BIT 14
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#define CCTRL_CL_BIT 13
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#define CCTRL_EN_BIT 12
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#define CCTRL_EVENTID_BIT 4
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#define CCTRL_CPUAHBM_BIT 0
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#define L4STAT_OPTIONS_EVENT_LEVEL_ENABLE CCTRL_EL
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#define L4STAT_OPTIONS_EVENT_LEVEL_DISABLE 0
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#define L4STAT_OPTIONS_MAXIMUM_DURATION CCTRL_CD
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#define L4STAT_OPTIONS_SUPERVISOR_MODE_FILTER ( 0x1 << CCTRL_SU_BIT )
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#define L4STAT_OPTIONS_USER_MODE_FILTER ( 0x2 << CCTRL_SU_BIT )
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#define L4STAT_OPTIONS_NO_FILTER 0
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#define L4STAT_OPTIONS_CLEAR_ON_READ CCTRL_CL
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extern int l4stat_counter_enable(
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unsigned int counter,
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int event,
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int cpu,
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int options
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);
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extern int l4stat_counter_disable( unsigned int counter );
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extern int l4stat_counter_set( unsigned int counter, uint32_t val );
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extern int l4stat_counter_get( unsigned int counter, uint32_t *val );
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static inline int l4stat_counter_clear( unsigned int counter )
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{
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return l4stat_counter_set( counter, 0 );
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}
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extern int l4stat_counter_max_set( unsigned int counter, uint32_t val );
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extern int l4stat_counter_max_get( unsigned int counter, uint32_t *val );
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extern int l4stat_tstamp_set( uint32_t val );
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extern int l4stat_tstamp_get( uint32_t *val );
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#ifdef __cplusplus
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}
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#endif
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#endif
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