1 /* $NetBSD: nouveau_nvkm_subdev_pci_g92.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $ */
2
3 /*
4 * Copyright 2015 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs <bskeggs@redhat.com>
25 */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_pci_g92.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
28
29 #include "priv.h"
30
31 int
g92_pcie_version_supported(struct nvkm_pci * pci)32 g92_pcie_version_supported(struct nvkm_pci *pci)
33 {
34 if ((nvkm_pci_rd32(pci, 0x460) & 0x200) == 0x200)
35 return 2;
36 return 1;
37 }
38
39 static const struct nvkm_pci_func
40 g92_pci_func = {
41 .init = g84_pci_init,
42 .rd32 = nv40_pci_rd32,
43 .wr08 = nv40_pci_wr08,
44 .wr32 = nv40_pci_wr32,
45 .msi_rearm = nv46_pci_msi_rearm,
46
47 .pcie.init = g84_pcie_init,
48 .pcie.set_link = g84_pcie_set_link,
49
50 .pcie.max_speed = g84_pcie_max_speed,
51 .pcie.cur_speed = g84_pcie_cur_speed,
52
53 .pcie.set_version = g84_pcie_set_version,
54 .pcie.version = g84_pcie_version,
55 .pcie.version_supported = g92_pcie_version_supported,
56 };
57
58 int
g92_pci_new(struct nvkm_device * device,int index,struct nvkm_pci ** ppci)59 g92_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
60 {
61 return nvkm_pci_new_(&g92_pci_func, device, index, ppci);
62 }
63