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
nv40_pci_rd32(struct nvkm_pci * pci,u16 addr)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
nv40_pci_wr08(struct nvkm_pci * pci,u16 addr,u8 data)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
nv40_pci_wr32(struct nvkm_pci * pci,u16 addr,u32 data)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
nv40_pci_msi_rearm(struct nvkm_pci * pci)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
nv40_pci_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_pci ** ppci)62 nv40_pci_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
63 	     struct nvkm_pci **ppci)
64 {
65 	return nvkm_pci_new_(&nv40_pci_func, device, type, inst, ppci);
66 }
67