1 | /* |
2 | * Copyright 2014 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 | |
25 | /******************************************************************************* |
26 | * NVIF client driver - NVKM directly linked |
27 | ******************************************************************************/ |
28 | |
29 | #include <core/client.h> |
30 | #include <core/ioctl.h> |
31 | |
32 | #include <nvif/client.h> |
33 | #include <nvif/driver.h> |
34 | #include <nvif/event.h> |
35 | #include <nvif/ioctl.h> |
36 | |
37 | #include "nouveau_drv.h" |
38 | #include "nouveau_usif.h" |
39 | |
40 | static void |
41 | nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) |
42 | { |
43 | iounmap(addr: ptr); |
44 | } |
45 | |
46 | static void __iomem * |
47 | nvkm_client_map(void *priv, u64 handle, u32 size) |
48 | { |
49 | return ioremap(offset: handle, size); |
50 | } |
51 | |
52 | static int |
53 | nvkm_client_ioctl(void *priv, void *data, u32 size, void **hack) |
54 | { |
55 | return nvkm_ioctl(priv, data, size, hack); |
56 | } |
57 | |
58 | static int |
59 | nvkm_client_resume(void *priv) |
60 | { |
61 | struct nvkm_client *client = priv; |
62 | return nvkm_object_init(&client->object); |
63 | } |
64 | |
65 | static int |
66 | nvkm_client_suspend(void *priv) |
67 | { |
68 | struct nvkm_client *client = priv; |
69 | return nvkm_object_fini(&client->object, true); |
70 | } |
71 | |
72 | static int |
73 | nvkm_client_event(u64 token, void *repv, u32 repc) |
74 | { |
75 | struct nvif_object *object = (void *)(unsigned long)token; |
76 | struct nvif_event *event = container_of(object, typeof(*event), object); |
77 | |
78 | if (event->func(event, repv, repc) == NVIF_EVENT_KEEP) |
79 | return NVKM_EVENT_KEEP; |
80 | |
81 | return NVKM_EVENT_DROP; |
82 | } |
83 | |
84 | static int |
85 | nvkm_client_driver_init(const char *name, u64 device, const char *cfg, |
86 | const char *dbg, void **ppriv) |
87 | { |
88 | return nvkm_client_new(name, device, cfg, dbg, nvkm_client_event, |
89 | (struct nvkm_client **)ppriv); |
90 | } |
91 | |
92 | const struct nvif_driver |
93 | nvif_driver_nvkm = { |
94 | .name = "nvkm" , |
95 | .init = nvkm_client_driver_init, |
96 | .suspend = nvkm_client_suspend, |
97 | .resume = nvkm_client_resume, |
98 | .ioctl = nvkm_client_ioctl, |
99 | .map = nvkm_client_map, |
100 | .unmap = nvkm_client_unmap, |
101 | .keep = false, |
102 | }; |
103 | |