36 lines
828 B
C
36 lines
828 B
C
/* inteltool - dump all registers on an Intel CPU + chipset based system */
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/* SPDX-License-Identifier: GPL-2.0-only */
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#include <stdio.h>
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#include <stdlib.h>
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#include <inttypes.h>
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#include "inteltool.h"
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#define MMIO_SIZE 0x100000
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int print_gfx(struct pci_dev *gfx)
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{
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uint64_t mmio_phys;
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uint8_t *mmio;
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uint32_t i;
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if (!gfx) {
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printf ("No IGD found\n");
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return 0;
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}
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printf("\n============= IGD ==============\n\n");
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mmio_phys = gfx->base_addr[0] & ~0x7ULL;
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printf("IGD MMIO = 0x%08llx (MEM)\n\n", (unsigned long long)mmio_phys);
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mmio = map_physical(mmio_phys, MMIO_SIZE);
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if (mmio == NULL) {
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perror("Error mapping MMIO");
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exit(1);
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}
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for (i = 0; i < MMIO_SIZE; i += 4) {
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if (read32(mmio + i))
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printf("0x%06x: 0x%08x\n", i, read32(mmio + i));
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}
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unmap_physical((void *)mmio, MMIO_SIZE);
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return 0;
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}
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