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