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   1 /***************************************************************************
   2  *   Copyright (C) 2018 by Square, Inc.                                    *
   3  *   Steven Stallion <stallion@squareup.com>                               *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  17  ***************************************************************************/
  18
  19 #ifndef OPENOCD_TARGET_ESIRISC_TRACE_H
  20 #define OPENOCD_TARGET_ESIRISC_TRACE_H
  21
  22 #include <helper/command.h>
  23 #include <helper/types.h>
  24 #include <target/target.h>
  25
  26 enum esirisc_trace_delay {
  27         ESIRISC_TRACE_DELAY_NONE,
  28         ESIRISC_TRACE_DELAY_START,
  29         ESIRISC_TRACE_DELAY_STOP,
  30         ESIRISC_TRACE_DELAY_BOTH,
  31 };
  32
  33 enum esirisc_trace_format {
  34         ESIRISC_TRACE_FORMAT_FULL,
  35         ESIRISC_TRACE_FORMAT_BRANCH,
  36         ESIRISC_TRACE_FORMAT_ICACHE,
  37 };
  38
  39 enum esirisc_trace_id {
  40         ESIRISC_TRACE_ID_EXECUTE,
  41         ESIRISC_TRACE_ID_STALL,
  42         ESIRISC_TRACE_ID_BRANCH,
  43         ESIRISC_TRACE_ID_EXTENDED,
  44 };
  45
  46 enum esirisc_trace_ext_id {
  47         ESIRISC_TRACE_EXT_ID_EXCEPTION = 1,
  48         ESIRISC_TRACE_EXT_ID_ERET,
  49         ESIRISC_TRACE_EXT_ID_STOP,
  50         ESIRISC_TRACE_EXT_ID_WAIT,
  51         ESIRISC_TRACE_EXT_ID_MULTICYCLE,
  52         ESIRISC_TRACE_EXT_ID_COUNT,
  53         ESIRISC_TRACE_EXT_ID_PC,
  54         ESIRISC_TRACE_EXT_ID_INDIRECT,
  55         ESIRISC_TRACE_EXT_ID_END,
  56         ESIRISC_TRACE_EXT_ID_END_PC,
  57 };
  58
  59 enum esirisc_trace_trigger {
  60         ESIRISC_TRACE_TRIGGER_NONE,
  61         ESIRISC_TRACE_TRIGGER_PC,
  62         ESIRISC_TRACE_TRIGGER_LOAD,
  63         ESIRISC_TRACE_TRIGGER_STORE,
  64         ESIRISC_TRACE_TRIGGER_EXCEPTION,
  65         ESIRISC_TRACE_TRIGGER_ERET,
  66         ESIRISC_TRACE_TRIGGER_WAIT,
  67         ESIRISC_TRACE_TRIGGER_STOP,
  68         ESIRISC_TRACE_TRIGGER_HIGH,
  69         ESIRISC_TRACE_TRIGGER_LOW,
  70 };
  71
  72 struct esirisc_trace {
  73         target_addr_t buffer_start;
  74         target_addr_t buffer_end;
  75         bool buffer_wrap;
  76         bool flow_control;
  77
  78         enum esirisc_trace_format format;
  79         int pc_bits;
  80
  81         enum esirisc_trace_trigger start_trigger;
  82         uint32_t start_data;
  83         uint32_t start_mask;
  84
  85         enum esirisc_trace_trigger stop_trigger;
  86         uint32_t stop_data;
  87         uint32_t stop_mask;
  88
  89         enum esirisc_trace_delay delay;
  90         uint32_t delay_cycles;
  91 };
  92
  93 extern const struct command_registration esirisc_trace_command_handlers[];
  94
  95 static inline uint32_t esirisc_trace_buffer_size(struct esirisc_trace *trace_info)
  96 {
  97         return trace_info->buffer_end - trace_info->buffer_start;
  98 }
  99
 100 static inline bool esirisc_trace_is_fifo(struct esirisc_trace *trace_info)
 101 {
 102         return trace_info->buffer_start == trace_info->buffer_end;
 103 }
 104
 105 #endif /* OPENOCD_TARGET_ESIRISC_TRACE_H */