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