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 u32
27 nv40_pci_rd32(struct nvkm_pci *pci, u16 addr)
28 {
29 struct nvkm_device *device = pci->subdev.device;
30 return nvkm_rd32(device, 0x088000 + addr);
31 }
32
33 void
34 nv40_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
35 {
36 struct nvkm_device *device = pci->subdev.device;
37 nvkm_wr08(device, 0x088000 + addr, data);
38 }
39
40 void
41 nv40_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
42 {
43 struct nvkm_device *device = pci->subdev.device;
44 nvkm_wr32(device, 0x088000 + addr, data);
45 }
46
47 void
48 nv40_pci_msi_rearm(struct nvkm_pci *pci)
49 {
50 nvkm_pci_wr08(pci, 0x0068, 0xff);
51 }
52
53 static const struct nvkm_pci_func
54 nv40_pci_func = {
55 .rd32 = nv40_pci_rd32,
56 .wr08 = nv40_pci_wr08,
57 .wr32 = nv40_pci_wr32,
58 .msi_rearm = nv40_pci_msi_rearm,
59 };
60
61 int
62 nv40_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
63 {
64 return nvkm_pci_new_(&nv40_pci_func, device, index, ppci);
65 }