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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/notify.h> | |
31 | #include <core/ioctl.h> | |
32 | ||
33 | #include <nvif/client.h> | |
34 | #include <nvif/driver.h> | |
35 | #include <nvif/notify.h> | |
36 | #include <nvif/event.h> | |
37 | #include <nvif/ioctl.h> | |
38 | ||
39 | #include "nouveau_drm.h" | |
27111a23 | 40 | #include "nouveau_usif.h" |
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41 | |
42 | static void | |
3cfb2fac | 43 | nvkm_client_unmap(void *priv, void __iomem *ptr, u32 size) |
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44 | { |
45 | iounmap(ptr); | |
46 | } | |
47 | ||
3cfb2fac | 48 | static void __iomem * |
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49 | nvkm_client_map(void *priv, u64 handle, u32 size) |
50 | { | |
51 | return ioremap(handle, size); | |
52 | } | |
53 | ||
54 | static int | |
55 | nvkm_client_ioctl(void *priv, bool super, void *data, u32 size, void **hack) | |
56 | { | |
57 | return nvkm_ioctl(priv, super, data, size, hack); | |
58 | } | |
59 | ||
60 | static int | |
61 | nvkm_client_resume(void *priv) | |
62 | { | |
be83cd4e | 63 | return nvkm_client_init(priv); |
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64 | } |
65 | ||
66 | static int | |
67 | nvkm_client_suspend(void *priv) | |
68 | { | |
be83cd4e | 69 | return nvkm_client_fini(priv, true); |
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70 | } |
71 | ||
72 | static void | |
5025407b | 73 | nvkm_client_driver_fini(void *priv) |
0ad72863 | 74 | { |
76ecea5b BS |
75 | struct nvkm_client *client = priv; |
76 | nvkm_client_del(&client); | |
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77 | } |
78 | ||
79 | static int | |
80 | nvkm_client_ntfy(const void *header, u32 length, const void *data, u32 size) | |
81 | { | |
82 | const union { | |
83 | struct nvif_notify_req_v0 v0; | |
84 | } *args = header; | |
85 | u8 route; | |
86 | ||
87 | if (length == sizeof(args->v0) && args->v0.version == 0) { | |
88 | route = args->v0.route; | |
89 | } else { | |
90 | WARN_ON(1); | |
91 | return NVKM_NOTIFY_DROP; | |
92 | } | |
93 | ||
94 | switch (route) { | |
95 | case NVDRM_NOTIFY_NVIF: | |
96 | return nvif_notify(header, length, data, size); | |
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97 | case NVDRM_NOTIFY_USIF: |
98 | return usif_notify(header, length, data, size); | |
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99 | default: |
100 | WARN_ON(1); | |
101 | break; | |
102 | } | |
103 | ||
104 | return NVKM_NOTIFY_DROP; | |
105 | } | |
106 | ||
107 | static int | |
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108 | nvkm_client_driver_init(const char *name, u64 device, const char *cfg, |
109 | const char *dbg, void **ppriv) | |
0ad72863 | 110 | { |
be83cd4e | 111 | struct nvkm_client *client; |
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112 | int ret; |
113 | ||
76ecea5b | 114 | ret = nvkm_client_new(name, device, cfg, dbg, &client); |
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115 | *ppriv = client; |
116 | if (ret) | |
117 | return ret; | |
118 | ||
119 | client->ntfy = nvkm_client_ntfy; | |
120 | return 0; | |
121 | } | |
122 | ||
123 | const struct nvif_driver | |
124 | nvif_driver_nvkm = { | |
125 | .name = "nvkm", | |
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126 | .init = nvkm_client_driver_init, |
127 | .fini = nvkm_client_driver_fini, | |
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128 | .suspend = nvkm_client_suspend, |
129 | .resume = nvkm_client_resume, | |
130 | .ioctl = nvkm_client_ioctl, | |
131 | .map = nvkm_client_map, | |
132 | .unmap = nvkm_client_unmap, | |
133 | .keep = false, | |
134 | }; |