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https://github.com/tiagovignatti/intel-gpu-tools.git
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95374225e8
A few of the tools can be performed post-mortem from a different system, so it is useful to be able to compile those tools on those foreign systems. Obviously, any program to interact with the PCI device or talk to GEM will fail on a non-Intel system. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <pciaccess.h>
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#include <err.h>
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#include <unistd.h>
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#include "intel_gpu_tools.h"
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#define INGTT(offset) (*(volatile uint32_t *)(gtt + (offset) / (KB(4) / 4)))
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#define KB(x) ((x) * 1024)
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#define MB(x) ((x) * 1024 * 1024)
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int main(int argc, char **argv)
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{
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struct pci_device *pci_dev;
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int start, aper_size;
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unsigned char *gtt;
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uint32_t devid;
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pci_dev = intel_get_pci_device();
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devid = pci_dev->device_id;
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intel_get_mmio(pci_dev);
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if (!IS_9XX(devid)) {
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printf("Unsupported chipset for gtt dumper\n");
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exit(1);
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}
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if (IS_G4X(devid) || IS_IRONLAKE(devid))
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gtt = ((unsigned char *)mmio + MB(2));
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else if (IS_965(devid))
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gtt = ((unsigned char *)mmio + KB(512));
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else {
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/* 915/945 chips has GTT range in bar 3 */
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int err;
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err = pci_device_map_range(pci_dev,
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pci_dev->regions[3].base_addr,
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pci_dev->regions[3].size,
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PCI_DEV_MAP_FLAG_WRITABLE,
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(void **)>t);
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if (err != 0) {
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fprintf(stderr, "mapping GTT bar failed\n");
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exit(1);
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}
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}
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aper_size = pci_dev->regions[2].size;
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for (start = 0; start < aper_size; start += KB(4)) {
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uint32_t start_pte = INGTT(start);
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uint32_t end;
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int constant_length = 0;
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int linear_length = 0;
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/* Check if it's a linear sequence */
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for (end = start + KB(4); end < aper_size; end += KB(4)) {
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uint32_t end_pte = INGTT(end);
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if (end_pte == start_pte + (end - start))
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linear_length++;
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else
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break;
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}
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if (linear_length > 0) {
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printf("0x%08x - 0x%08x: linear from "
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"0x%08x to 0x%08x\n",
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start, end - KB(4),
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start_pte, start_pte + (end - start) - KB(4));
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start = end - KB(4);
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continue;
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}
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/* Check if it's a constant sequence */
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for (end = start + KB(4); end < aper_size; end += KB(4)) {
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uint32_t end_pte = INGTT(end);
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if (end_pte == start_pte)
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constant_length++;
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else
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break;
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}
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if (constant_length > 0) {
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printf("0x%08x - 0x%08x: constant 0x%08x\n",
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start, end - KB(4), start_pte);
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start = end - KB(4);
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continue;
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}
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printf("0x%08x: 0x%08x\n", start, start_pte);
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}
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return 0;
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}
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