| /* |
| * Copyright © 2010 Intel Corporation |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
| * DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: |
| * Zhenyu Wang <zhenyuw@linux.intel.com> |
| * |
| */ |
| |
| #include <unistd.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <err.h> |
| #include <string.h> |
| #include "intel_gpu_tools.h" |
| |
| static void bit_decode(uint32_t reg) |
| { |
| int i; |
| |
| for (i=31; i >= 0; i--) |
| printf(" %2d", i); |
| printf("\n"); |
| |
| for (i=31; i >= 0; i--) |
| printf(" %2d", (reg & (1 << i)) && 1); |
| printf("\n"); |
| } |
| |
| static void dump_range(uint32_t start, uint32_t end) |
| { |
| int i; |
| |
| for (i = start; i < end; i += 4) |
| printf("0x%X : 0x%X\n", i, |
| *(volatile uint32_t *)((volatile char*)mmio + i)); |
| } |
| |
| static void usage(char *cmdname) |
| { |
| printf("Usage: %s [-f|-d] [addr1] [addr2] .. [addrN]\n", cmdname); |
| printf("\t -f : read back full range of registers.\n"); |
| printf("\t WARNING! This option may result in a machine hang!\n"); |
| printf("\t -d : decode register bits.\n"); |
| printf("\t -c : number of dwords to dump (can't be used with -f/-d).\n"); |
| printf("\t addr : in 0xXXXX format\n"); |
| } |
| |
| int main(int argc, char** argv) |
| { |
| int ret = 0; |
| uint32_t reg; |
| int i, ch; |
| char *cmdname = strdup(argv[0]); |
| int full_dump = 0; |
| int decode_bits = 0; |
| int dwords = 1; |
| |
| while ((ch = getopt(argc, argv, "dfhc:")) != -1) { |
| switch(ch) { |
| case 'd': |
| decode_bits = 1; |
| break; |
| case 'f': |
| full_dump = 1; |
| break; |
| case 'h': |
| usage(cmdname); |
| ret = 1; |
| goto out; |
| case 'c': |
| dwords = strtol(optarg, NULL, 0); |
| break; |
| } |
| } |
| argc -= optind; |
| argv += optind; |
| |
| if (argc < 1) { |
| usage(cmdname); |
| ret = 1; |
| goto out; |
| } |
| |
| if ((dwords > 1) && (argc != 1 || full_dump || decode_bits)) { |
| usage(cmdname); |
| ret = 1; |
| goto out; |
| } |
| |
| intel_register_access_init(intel_get_pci_device(), 0); |
| |
| if (full_dump) { |
| dump_range(0x00000, 0x00fff); /* VGA registers */ |
| dump_range(0x02000, 0x02fff); /* instruction, memory, interrupt control registers */ |
| dump_range(0x03000, 0x031ff); /* FENCE and PPGTT control registers */ |
| dump_range(0x03200, 0x03fff); /* frame buffer compression registers */ |
| dump_range(0x05000, 0x05fff); /* I/O control registers */ |
| dump_range(0x06000, 0x06fff); /* clock control registers */ |
| dump_range(0x07000, 0x07fff); /* 3D internal debug registers */ |
| dump_range(0x07400, 0x088ff); /* GPE debug registers */ |
| dump_range(0x0a000, 0x0afff); /* display palette registers */ |
| dump_range(0x10000, 0x13fff); /* MMIO MCHBAR */ |
| dump_range(0x30000, 0x3ffff); /* overlay registers */ |
| dump_range(0x60000, 0x6ffff); /* display engine pipeline registers */ |
| dump_range(0x70000, 0x72fff); /* display and cursor registers */ |
| dump_range(0x73000, 0x73fff); /* performance counters */ |
| } else { |
| for (i=0; i < argc; i++) { |
| sscanf(argv[i], "0x%x", ®); |
| dump_range(reg, reg + (dwords * 4)); |
| |
| if (decode_bits) |
| bit_decode(*(volatile uint32_t *)((volatile char*)mmio + reg)); |
| } |
| } |
| |
| intel_register_access_fini(); |
| |
| out: |
| free(cmdname); |
| return ret; |
| } |
| |