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   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2018 by Square, Inc.                                    *
   5  *   Steven Stallion <stallion@squareup.com>                               *
   6  ***************************************************************************/
   7
   8 #ifndef OPENOCD_TARGET_ESIRISC_TRACE_H
   9 #define OPENOCD_TARGET_ESIRISC_TRACE_H
  10
  11 #include <helper/command.h>
  12 #include <helper/types.h>
  13 #include <target/target.h>
  14
  15 enum esirisc_trace_delay {
  16         ESIRISC_TRACE_DELAY_NONE,
  17         ESIRISC_TRACE_DELAY_START,
  18         ESIRISC_TRACE_DELAY_STOP,
  19         ESIRISC_TRACE_DELAY_BOTH,
  20 };
  21
  22 enum esirisc_trace_format {
  23         ESIRISC_TRACE_FORMAT_FULL,
  24         ESIRISC_TRACE_FORMAT_BRANCH,
  25         ESIRISC_TRACE_FORMAT_ICACHE,
  26 };
  27
  28 enum esirisc_trace_id {
  29         ESIRISC_TRACE_ID_EXECUTE,
  30         ESIRISC_TRACE_ID_STALL,
  31         ESIRISC_TRACE_ID_BRANCH,
  32         ESIRISC_TRACE_ID_EXTENDED,
  33 };
  34
  35 enum esirisc_trace_ext_id {
  36         ESIRISC_TRACE_EXT_ID_EXCEPTION = 1,
  37         ESIRISC_TRACE_EXT_ID_ERET,
  38         ESIRISC_TRACE_EXT_ID_STOP,
  39         ESIRISC_TRACE_EXT_ID_WAIT,
  40         ESIRISC_TRACE_EXT_ID_MULTICYCLE,
  41         ESIRISC_TRACE_EXT_ID_COUNT,
  42         ESIRISC_TRACE_EXT_ID_PC,
  43         ESIRISC_TRACE_EXT_ID_INDIRECT,
  44         ESIRISC_TRACE_EXT_ID_END,
  45         ESIRISC_TRACE_EXT_ID_END_PC,
  46 };
  47
  48 enum esirisc_trace_trigger {
  49         ESIRISC_TRACE_TRIGGER_NONE,
  50         ESIRISC_TRACE_TRIGGER_PC,
  51         ESIRISC_TRACE_TRIGGER_LOAD,
  52         ESIRISC_TRACE_TRIGGER_STORE,
  53         ESIRISC_TRACE_TRIGGER_EXCEPTION,
  54         ESIRISC_TRACE_TRIGGER_ERET,
  55         ESIRISC_TRACE_TRIGGER_WAIT,
  56         ESIRISC_TRACE_TRIGGER_STOP,
  57         ESIRISC_TRACE_TRIGGER_HIGH,
  58         ESIRISC_TRACE_TRIGGER_LOW,
  59 };
  60
  61 struct esirisc_trace {
  62         target_addr_t buffer_start;
  63         target_addr_t buffer_end;
  64         bool buffer_wrap;
  65         bool flow_control;
  66
  67         enum esirisc_trace_format format;
  68         int pc_bits;
  69
  70         enum esirisc_trace_trigger start_trigger;
  71         uint32_t start_data;
  72         uint32_t start_mask;
  73
  74         enum esirisc_trace_trigger stop_trigger;
  75         uint32_t stop_data;
  76         uint32_t stop_mask;
  77
  78         enum esirisc_trace_delay delay;
  79         uint32_t delay_cycles;
  80 };
  81
  82 extern const struct command_registration esirisc_trace_command_handlers[];
  83
  84 static inline uint32_t esirisc_trace_buffer_size(struct esirisc_trace *trace_info)
  85 {
  86         return trace_info->buffer_end - trace_info->buffer_start;
  87 }
  88
  89 static inline bool esirisc_trace_is_fifo(struct esirisc_trace *trace_info)
  90 {
  91         return trace_info->buffer_start == trace_info->buffer_end;
  92 }
  93
  94 #endif /* OPENOCD_TARGET_ESIRISC_TRACE_H */