333 lines
13 KiB
C
333 lines
13 KiB
C
/****************************************************************************
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* arch/arm/src/armv7-m/dwt.h
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*
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* Copyright (c) 2009 - 2013 ARM LIMITED
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*
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* All rights reserved.
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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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*
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* - 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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* - 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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* - Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS
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* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Copyright (C) 2014 Pierre-noel Bouteville . All rights reserved.
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* Author: Pierre-noel Bouteville <pnb990@gmail.com>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* 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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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_ARMV7_M_DWT_H
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#define __ARCH_ARM_SRC_ARMV7_M_DWT_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "arm_internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Data Watchpoint and Trace Register (DWT) Definitions *********************/
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/* DWT Register Base Address ************************************************/
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#define DWT_BASE (0xe0001000ul)
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/* DWT Register Addresses ***************************************************/
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#define DWT_CTRL (DWT_BASE + 0x0000) /* Control Register */
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#define DWT_CYCCNT (DWT_BASE + 0x0004) /* Cycle Count Register */
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#define DWT_CPICNT (DWT_BASE + 0x0008) /* CPI Count Register */
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#define DWT_EXCCNT (DWT_BASE + 0x000c) /* Exception Overhead Count Register */
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#define DWT_SLEEPCNT (DWT_BASE + 0x0010) /* Sleep Count Register */
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#define DWT_LSUCNT (DWT_BASE + 0x0014) /* LSU Count Register */
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#define DWT_FOLDCNT (DWT_BASE + 0x0018) /* Folded-instruction Count Register */
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#define DWT_PCSR (DWT_BASE + 0x001c) /* Program Counter Sample Register */
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#define DWT_COMP0 (DWT_BASE + 0x0020) /* Comparator Register 0 */
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#define DWT_MASK0 (DWT_BASE + 0x0024) /* Mask Register 0 */
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#define DWT_FUNCTION0 (DWT_BASE + 0x0028) /* Function Register 0 */
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#define DWT_COMP1 (DWT_BASE + 0x0030) /* Comparator Register 1 */
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#define DWT_MASK1 (DWT_BASE + 0x0034) /* Mask Register 1 */
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#define DWT_FUNCTION1 (DWT_BASE + 0x0038) /* Function Register 1 */
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#define DWT_COMP2 (DWT_BASE + 0x0040) /* Comparator Register 2 */
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#define DWT_MASK2 (DWT_BASE + 0x0044) /* Mask Register 2 */
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#define DWT_FUNCTION2 (DWT_BASE + 0x0048) /* Function Register 2 */
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#define DWT_COMP3 (DWT_BASE + 0x0050) /* Comparator Register 3 */
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#define DWT_MASK3 (DWT_BASE + 0x0054) /* Mask Register 3 */
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#define DWT_FUNCTION3 (DWT_BASE + 0x0058) /* Function Register 3 */
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#define DWT_LAR (DWT_BASE + 0x0FB0) /* Lock Access Register */
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#define DWT_LAR_ACCESS (0xC5ACCE55) /* Lock Access Magic Value */
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#define DWT_GRANT_ACCESS() (putreg32(DWT_LAR_ACCESS, DWT_LAR))
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#define DWT_REVOKE_ACCESS() (putreg32(~DWT_LAR_ACCESS, DWT_LAR))
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/* DWT Register Bit Field Definitions ***************************************/
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/* DWT CTRL */
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#define DWT_CTRL_NUMCOMP_SHIFT 28
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#define DWT_CTRL_NUMCOMP_MASK (0xFul << DWT_CTRL_NUMCOMP_SHIFT)
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#define DWT_CTRL_NOTRCPKT_SHIFT 27
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#define DWT_CTRL_NOTRCPKT_MASK (0x1ul << DWT_CTRL_NOTRCPKT_SHIFT)
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#define DWT_CTRL_NOEXTTRIG_SHIFT 26
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#define DWT_CTRL_NOEXTTRIG_MASK (0x1ul << DWT_CTRL_NOEXTTRIG_SHIFT)
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#define DWT_CTRL_NOCYCCNT_SHIFT 25
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#define DWT_CTRL_NOCYCCNT_MASK (0x1ul << DWT_CTRL_NOCYCCNT_SHIFT)
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#define DWT_CTRL_NOPRFCNT_SHIFT 24
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#define DWT_CTRL_NOPRFCNT_MASK (0x1ul << DWT_CTRL_NOPRFCNT_SHIFT)
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#define DWT_CTRL_CYCEVTENA_SHIFT 22
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#define DWT_CTRL_CYCEVTENA_MASK (0x1ul << DWT_CTRL_CYCEVTENA_SHIFT)
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#define DWT_CTRL_FOLDEVTENA_SHIFT 21
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#define DWT_CTRL_FOLDEVTENA_MASK (0x1ul << DWT_CTRL_FOLDEVTENA_SHIFT)
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#define DWT_CTRL_LSUEVTENA_SHIFT 20
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#define DWT_CTRL_LSUEVTENA_MASK (0x1ul << DWT_CTRL_LSUEVTENA_SHIFT)
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#define DWT_CTRL_SLEEPEVTENA_SHIFT 19
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#define DWT_CTRL_SLEEPEVTENA_MASK (0x1ul << DWT_CTRL_SLEEPEVTENA_SHIFT)
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#define DWT_CTRL_EXCEVTENA_SHIFT 18
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#define DWT_CTRL_EXCEVTENA_MASK (0x1ul << DWT_CTRL_EXCEVTENA_SHIFT)
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#define DWT_CTRL_CPIEVTENA_SHIFT 17
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#define DWT_CTRL_CPIEVTENA_MASK (0x1ul << DWT_CTRL_CPIEVTENA_SHIFT)
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#define DWT_CTRL_EXCTRCENA_SHIFT 16
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#define DWT_CTRL_EXCTRCENA_MASK (0x1ul << DWT_CTRL_EXCTRCENA_SHIFT)
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#define DWT_CTRL_PCSAMPLENA_SHIFT 12
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#define DWT_CTRL_PCSAMPLENA_MASK (0x1ul << DWT_CTRL_PCSAMPLENA_SHIFT)
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#define DWT_CTRL_SYNCTAP_SHIFT 10
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#define DWT_CTRL_SYNCTAP_MASK (0x3ul << DWT_CTRL_SYNCTAP_SHIFT)
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#define DWT_CTRL_CYCTAP_SHIFT 9
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#define DWT_CTRL_CYCTAP_MASK (0x1ul << DWT_CTRL_CYCTAP_SHIFT)
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#define DWT_CTRL_POSTINIT_SHIFT 5
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#define DWT_CTRL_POSTINIT_MASK (0xful << DWT_CTRL_POSTINIT_SHIFT)
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#define DWT_CTRL_POSTPRESET_SHIFT 1
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#define DWT_CTRL_POSTPRESET_MASK (0xful << DWT_CTRL_POSTPRESET_SHIFT)
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#define DWT_CTRL_CYCCNTENA_SHIFT 0
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#define DWT_CTRL_CYCCNTENA_MASK (0x1ul << DWT_CTRL_CYCCNTENA_SHIFT)
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/* DWT CPICNT */
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#define DWT_CPICNT_CPICNT_SHIFT 0
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#define DWT_CPICNT_CPICNT_MASK (0xfful << DWT_CPICNT_CPICNT_SHIFT)
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/* DWT EXCCNT */
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#define DWT_EXCCNT_EXCCNT_SHIFT 0
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#define DWT_EXCCNT_EXCCNT_MASK (0xfful << DWT_EXCCNT_EXCCNT_SHIFT)
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/* DWT SLEEPCNT */
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#define DWT_SLEEPCNT_SLEEPCNT_SHIFT 0
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#define DWT_SLEEPCNT_SLEEPCNT_MASK (0xfful << DWT_SLEEPCNT_SLEEPCNT_SHIFT)
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/* DWT LSUCNT */
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#define DWT_LSUCNT_LSUCNT_SHIFT 0
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#define DWT_LSUCNT_LSUCNT_MASK (0xfful << DWT_LSUCNT_LSUCNT_SHIFT)
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/* DWT FOLDCNT */
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#define DWT_FOLDCNT_FOLDCNT_SHIFT 0
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#define DWT_FOLDCNT_FOLDCNT_MASK (0xfful << DWT_FOLDCNT_FOLDCNT_SHIFT)
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/* DWT MASK */
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#define DWT_MASK_MASK_SHIFT 0
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#define DWT_MASK_MASK_MASK (0x1ful << DWT_MASK_MASK_SHIFT)
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/* DWT FUNCTION */
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#define DWT_FUNCTION_MATCHED_SHIFT 24
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#define DWT_FUNCTION_MATCHED_MASK (0x1ul << DWT_FUNCTION_MATCHED_SHIFT)
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#define DWT_FUNCTION_DATAVADDR1_SHIFT 16
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#define DWT_FUNCTION_DATAVADDR1_MASK (0xful << DWT_FUNCTION_DATAVADDR1_SHIFT)
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#define DWT_FUNCTION_DATAVADDR0_SHIFT 12
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#define DWT_FUNCTION_DATAVADDR0_MASK (0xful << DWT_FUNCTION_DATAVADDR0_SHIFT)
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#define DWT_FUNCTION_DATAVSIZE_SHIFT 10
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#define DWT_FUNCTION_DATAVSIZE_MASK (0x3ul << DWT_FUNCTION_DATAVSIZE_SHIFT)
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#define DWT_FUNCTION_LNK1ENA_SHIFT 9
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#define DWT_FUNCTION_LNK1ENA_MASK (0x1ul << DWT_FUNCTION_LNK1ENA_SHIFT)
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#define DWT_FUNCTION_DATAVMATCH_SHIFT 8
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#define DWT_FUNCTION_DATAVMATCH_MASK (0x1ul << DWT_FUNCTION_DATAVMATCH_SHIFT)
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#define DWT_FUNCTION_CYCMATCH_SHIFT 7
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#define DWT_FUNCTION_CYCMATCH_MASK 0x1ul << DWT_FUNCTION_CYCMATCH_SHIFT)
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#define DWT_FUNCTION_EMITRANGE_SHIFT 5
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#define DWT_FUNCTION_EMITRANGE_MASK (0x1ul << DWT_FUNCTION_EMITRANGE_SHIFT)
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#define DWT_FUNCTION_FUNCTION_SHIFT 0
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#define DWT_FUNCTION_FUNCTION_MASK (0xful << DWT_FUNCTION_FUNCTION_SHIFT)
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#define DWT_FUNCTION_WATCHPOINT_RO (0x05ul << DWT_FUNCTION_FUNCTION_SHIFT)
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#define DWT_FUNCTION_WATCHPOINT_WO (0x06ul << DWT_FUNCTION_FUNCTION_SHIFT)
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#define DWT_FUNCTION_WATCHPOINT_RW (0x07ul << DWT_FUNCTION_FUNCTION_SHIFT)
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#define DWT_DATAVSIZE_BYTE (0x00ul << DWT_FUNCTION_DATAVSIZE_SHIFT)
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#define DWT_DATAVSIZE_HALFWORD (0x01ul << DWT_FUNCTION_DATAVSIZE_SHIFT)
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#define DWT_DATAVSIZE_WORD (0x02ul << DWT_FUNCTION_DATAVSIZE_SHIFT)
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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static inline void dwt_comparator_setup(int compnum, uint32_t comp,
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uint32_t mask, uint32_t func)
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{
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DWT_GRANT_ACCESS();
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switch (compnum)
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{
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case 0:
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putreg32(comp, DWT_COMP0);
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putreg32(mask, DWT_MASK0);
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putreg32(func, DWT_FUNCTION0);
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break;
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case 1:
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putreg32(comp, DWT_COMP1);
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putreg32(mask, DWT_MASK1);
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putreg32(func, DWT_FUNCTION1);
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break;
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case 2:
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putreg32(comp, DWT_COMP2);
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putreg32(mask, DWT_MASK2);
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putreg32(func, DWT_FUNCTION2);
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break;
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case 3:
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putreg32(comp, DWT_COMP3);
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putreg32(mask, DWT_MASK3);
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putreg32(func, DWT_FUNCTION3);
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break;
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default:
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break;
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}
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DWT_REVOKE_ACCESS();
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}
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static inline void dwt_comparator_reset(int compnum)
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{
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DWT_GRANT_ACCESS();
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switch (compnum)
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{
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case 0:
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putreg32(0, DWT_COMP0);
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putreg32(0, DWT_MASK0);
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putreg32(0, DWT_FUNCTION0);
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break;
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case 1:
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putreg32(0, DWT_COMP1);
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putreg32(0, DWT_MASK1);
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putreg32(0, DWT_FUNCTION1);
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break;
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case 2:
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putreg32(0, DWT_COMP2);
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putreg32(0, DWT_MASK2);
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putreg32(0, DWT_FUNCTION2);
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break;
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case 3:
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putreg32(0, DWT_COMP3);
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putreg32(0, DWT_MASK3);
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putreg32(0, DWT_FUNCTION3);
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break;
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default:
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break;
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}
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DWT_REVOKE_ACCESS();
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}
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static inline uint32_t dwt_comparator_block(int compnum)
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{
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uint32_t funcval = 0;
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DWT_GRANT_ACCESS();
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switch (compnum)
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{
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case 0:
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funcval = getreg32(DWT_FUNCTION0);
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putreg32(0, DWT_FUNCTION0);
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break;
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case 1:
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funcval = getreg32(DWT_FUNCTION1);
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putreg32(0, DWT_FUNCTION1);
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break;
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case 2:
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funcval = getreg32(DWT_FUNCTION2);
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putreg32(0, DWT_FUNCTION2);
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break;
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case 3:
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funcval = getreg32(DWT_FUNCTION3);
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putreg32(0, DWT_FUNCTION3);
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break;
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default:
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break;
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}
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DWT_REVOKE_ACCESS();
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return funcval;
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}
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static inline void dwt_comparator_restore(int compnum, uint32_t func)
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{
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DWT_GRANT_ACCESS();
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switch (compnum)
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{
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case 0:
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putreg32(func, DWT_FUNCTION0);
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break;
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case 1:
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putreg32(func, DWT_FUNCTION1);
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break;
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case 2:
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putreg32(func, DWT_FUNCTION2);
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break;
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case 3:
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putreg32(func, DWT_FUNCTION3);
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break;
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default:
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break;
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}
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DWT_REVOKE_ACCESS();
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}
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#endif /* __ARCH_ARM_SRC_ARMV7_M_DWT_H */
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