1*effcd0deSCorvin Köhne /*-
2*effcd0deSCorvin Köhne * SPDX-License-Identifier: BSD-2-Clause
3*effcd0deSCorvin Köhne *
4*effcd0deSCorvin Köhne * Copyright (c) 2025 Beckhoff Automation GmbH & Co. KG
5*effcd0deSCorvin Köhne * Author: Corvin Köhne <c.koehne@beckhoff.com>
6*effcd0deSCorvin Köhne */
7*effcd0deSCorvin Köhne
8*effcd0deSCorvin Köhne #include <dev/pci/pcireg.h>
9*effcd0deSCorvin Köhne
10*effcd0deSCorvin Köhne #include <errno.h>
11*effcd0deSCorvin Köhne
12*effcd0deSCorvin Köhne #include "pci_passthru.h"
13*effcd0deSCorvin Köhne
14*effcd0deSCorvin Köhne #define PCI_VENDOR_NVIDIA 0x10DE
15*effcd0deSCorvin Köhne
16*effcd0deSCorvin Köhne static int
nvidia_gpu_probe(struct pci_devinst * const pi)17*effcd0deSCorvin Köhne nvidia_gpu_probe(struct pci_devinst *const pi)
18*effcd0deSCorvin Köhne {
19*effcd0deSCorvin Köhne struct passthru_softc *sc;
20*effcd0deSCorvin Köhne uint16_t vendor;
21*effcd0deSCorvin Köhne uint8_t class;
22*effcd0deSCorvin Köhne
23*effcd0deSCorvin Köhne sc = pi->pi_arg;
24*effcd0deSCorvin Köhne
25*effcd0deSCorvin Köhne vendor = pci_host_read_config(passthru_get_sel(sc), PCIR_VENDOR, 0x02);
26*effcd0deSCorvin Köhne if (vendor != PCI_VENDOR_NVIDIA)
27*effcd0deSCorvin Köhne return (ENXIO);
28*effcd0deSCorvin Köhne
29*effcd0deSCorvin Köhne class = pci_host_read_config(passthru_get_sel(sc), PCIR_CLASS, 0x01);
30*effcd0deSCorvin Köhne if (class != PCIC_DISPLAY)
31*effcd0deSCorvin Köhne return (ENXIO);
32*effcd0deSCorvin Köhne
33*effcd0deSCorvin Köhne return (0);
34*effcd0deSCorvin Köhne }
35*effcd0deSCorvin Köhne
36*effcd0deSCorvin Köhne static int
nvidia_gpu_init(struct pci_devinst * const pi,nvlist_t * const nvl __unused)37*effcd0deSCorvin Köhne nvidia_gpu_init(struct pci_devinst *const pi, nvlist_t *const nvl __unused)
38*effcd0deSCorvin Köhne {
39*effcd0deSCorvin Köhne pci_set_cfgdata8(pi, PCIR_INTPIN, 1);
40*effcd0deSCorvin Köhne
41*effcd0deSCorvin Köhne return (0);
42*effcd0deSCorvin Köhne }
43*effcd0deSCorvin Köhne
44*effcd0deSCorvin Köhne static struct passthru_dev nvidia_gpu = {
45*effcd0deSCorvin Köhne .probe = nvidia_gpu_probe,
46*effcd0deSCorvin Köhne .init = nvidia_gpu_init,
47*effcd0deSCorvin Köhne };
48*effcd0deSCorvin Köhne PASSTHRU_DEV_SET(nvidia_gpu);
49