// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2014 Google, Inc
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*/
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#include <common.h>
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#include <command.h>
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#include <iotrace.h>
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static void do_print_stats(void)
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{
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ulong start, size, needed_size, offset, count;
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printf("iotrace is %sabled\n", iotrace_get_enabled() ? "en" : "dis");
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iotrace_get_buffer(&start, &size, &needed_size, &offset, &count);
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printf("Start: %08lx\n", start);
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printf("Actual Size: %08lx\n", size);
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printf("Needed Size: %08lx\n", needed_size);
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iotrace_get_region(&start, &size);
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printf("Region: %08lx\n", start);
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printf("Size: %08lx\n", size);
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printf("Offset: %08lx\n", offset);
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printf("Output: %08lx\n", start + offset);
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printf("Count: %08lx\n", count);
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printf("CRC32: %08lx\n", (ulong)iotrace_get_checksum());
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}
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static void do_print_trace(void)
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{
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ulong start, size, needed_size, offset, count;
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struct iotrace_record *cur_record;
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iotrace_get_buffer(&start, &size, &needed_size, &offset, &count);
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if (!start || !size || !count)
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return;
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printf("Timestamp Value Address\n");
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cur_record = (struct iotrace_record *)start;
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for (int i = 0; i < count; i++) {
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if (cur_record->flags & IOT_WRITE)
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printf("%08llu: 0x%08lx --> 0x%08llx\n",
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cur_record->timestamp,
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cur_record->value,
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(unsigned long long)cur_record->addr);
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else
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printf("%08llu: 0x%08lx <-- 0x%08llx\n",
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cur_record->timestamp,
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cur_record->value,
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(unsigned long long)cur_record->addr);
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cur_record++;
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}
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}
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static int do_set_buffer(int argc, char * const argv[])
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{
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ulong addr = 0, size = 0;
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if (argc == 2) {
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addr = simple_strtoul(*argv++, NULL, 16);
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size = simple_strtoul(*argv++, NULL, 16);
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} else if (argc != 0) {
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return CMD_RET_USAGE;
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}
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iotrace_set_buffer(addr, size);
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return 0;
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}
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static int do_set_region(int argc, char * const argv[])
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{
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ulong addr = 0, size = 0;
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if (argc == 2) {
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addr = simple_strtoul(*argv++, NULL, 16);
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size = simple_strtoul(*argv++, NULL, 16);
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} else if (argc != 0) {
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return CMD_RET_USAGE;
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}
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iotrace_set_region(addr, size);
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return 0;
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}
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int do_iotrace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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const char *cmd = argc < 2 ? NULL : argv[1];
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if (!cmd)
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return cmd_usage(cmdtp);
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switch (*cmd) {
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case 'b':
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return do_set_buffer(argc - 2, argv + 2);
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case 'l':
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return do_set_region(argc - 2, argv + 2);
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case 'p':
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iotrace_set_enabled(0);
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break;
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case 'r':
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iotrace_set_enabled(1);
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break;
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case 's':
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do_print_stats();
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break;
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case 'd':
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do_print_trace();
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break;
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default:
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return CMD_RET_USAGE;
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}
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return 0;
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}
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U_BOOT_CMD(
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iotrace, 4, 1, do_iotrace,
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"iotrace utility commands",
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"stats - display iotrace stats\n"
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"iotrace buffer <address> <size> - set iotrace buffer\n"
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"iotrace limit <address> <size> - set iotrace region limit\n"
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"iotrace pause - pause tracing\n"
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"iotrace resume - resume tracing\n"
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"iotrace dump - dump iotrace buffer"
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);
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