1 /* $NetBSD: nouveau_nvkm_subdev_pci_nv40.c,v 1.3 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_nv40.c,v 1.3 2021/12/18 23:45:41 riastradh Exp $");
28
29 #include "priv.h"
30
31 u32
nv40_pci_rd32(struct nvkm_pci * pci,u16 addr)32 nv40_pci_rd32(struct nvkm_pci *pci, u16 addr)
33 {
34 struct nvkm_device *device = pci->subdev.device;
35 return nvkm_rd32(device, 0x088000 + addr);
36 }
37
38 void
nv40_pci_wr08(struct nvkm_pci * pci,u16 addr,u8 data)39 nv40_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
40 {
41 struct nvkm_device *device = pci->subdev.device;
42 nvkm_wr08(device, 0x088000 + addr, data);
43 }
44
45 void
nv40_pci_wr32(struct nvkm_pci * pci,u16 addr,u32 data)46 nv40_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
47 {
48 struct nvkm_device *device = pci->subdev.device;
49 nvkm_wr32(device, 0x088000 + addr, data);
50 }
51
52 void
nv40_pci_msi_rearm(struct nvkm_pci * pci)53 nv40_pci_msi_rearm(struct nvkm_pci *pci)
54 {
55 nvkm_pci_wr08(pci, 0x0068, 0xff);
56 }
57
58 static const struct nvkm_pci_func
59 nv40_pci_func = {
60 .rd32 = nv40_pci_rd32,
61 .wr08 = nv40_pci_wr08,
62 .wr32 = nv40_pci_wr32,
63 .msi_rearm = nv40_pci_msi_rearm,
64 };
65
66 int
nv40_pci_new(struct nvkm_device * device,int index,struct nvkm_pci ** ppci)67 nv40_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
68 {
69 return nvkm_pci_new_(&nv40_pci_func, device, index, ppci);
70 }
71