Commit | Line | Data |
---|---|---|
ebb945a9 BS |
1 | /* |
2 | * Copyright 2012 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 | |
23 | */ | |
24 | ||
25 | #include <core/object.h> | |
4acfd707 | 26 | #include <core/client.h> |
42594600 | 27 | #include <core/device.h> |
4acfd707 BS |
28 | #include <nvif/unpack.h> |
29 | #include <nvif/class.h> | |
ebb945a9 BS |
30 | |
31 | #include <subdev/fb.h> | |
4acfd707 | 32 | #include <subdev/instmem.h> |
bc98540b BS |
33 | |
34 | #include "priv.h" | |
ebb945a9 | 35 | |
f86770aa | 36 | static int |
b2c81703 BS |
37 | nvkm_dmaobj_bind(struct nouveau_dmaobj *dmaobj, struct nouveau_object *parent, |
38 | struct nouveau_gpuobj **pgpuobj) | |
39 | { | |
40 | const struct nvkm_dmaeng_impl *impl = (void *) | |
41 | nv_oclass(nv_object(dmaobj)->engine); | |
42 | int ret = 0; | |
43 | ||
44 | if (nv_object(dmaobj) == parent) { /* ctor bind */ | |
45 | if (nv_mclass(parent->parent) == NV_DEVICE) { | |
46 | /* delayed, or no, binding */ | |
47 | return 0; | |
48 | } | |
49 | ret = impl->bind(dmaobj, parent, pgpuobj); | |
50 | if (ret == 0) | |
51 | nouveau_object_ref(NULL, &parent); | |
52 | return ret; | |
53 | } | |
54 | ||
55 | return impl->bind(dmaobj, parent, pgpuobj); | |
56 | } | |
57 | ||
58 | int | |
59 | nvkm_dmaobj_create_(struct nouveau_object *parent, | |
f86770aa | 60 | struct nouveau_object *engine, |
b2c81703 BS |
61 | struct nouveau_oclass *oclass, void **pdata, u32 *psize, |
62 | int length, void **pobject) | |
ebb945a9 | 63 | { |
4acfd707 BS |
64 | union { |
65 | struct nv_dma_v0 v0; | |
66 | } *args = *pdata; | |
67 | struct nouveau_instmem *instmem = nouveau_instmem(parent); | |
68 | struct nouveau_client *client = nouveau_client(parent); | |
69 | struct nouveau_device *device = nv_device(parent); | |
70 | struct nouveau_fb *pfb = nouveau_fb(parent); | |
f86770aa | 71 | struct nouveau_dmaobj *dmaobj; |
4acfd707 BS |
72 | void *data = *pdata; |
73 | u32 size = *psize; | |
ebb945a9 BS |
74 | int ret; |
75 | ||
b2c81703 BS |
76 | ret = nouveau_object_create_(parent, engine, oclass, 0, length, pobject); |
77 | dmaobj = *pobject; | |
ebb945a9 BS |
78 | if (ret) |
79 | return ret; | |
80 | ||
4acfd707 BS |
81 | nv_ioctl(parent, "create dma size %d\n", *psize); |
82 | if (nvif_unpack(args->v0, 0, 0, true)) { | |
83 | nv_ioctl(parent, "create dma vers %d target %d access %d " | |
84 | "start %016llx limit %016llx\n", | |
85 | args->v0.version, args->v0.target, args->v0.access, | |
86 | args->v0.start, args->v0.limit); | |
87 | dmaobj->target = args->v0.target; | |
88 | dmaobj->access = args->v0.access; | |
89 | dmaobj->start = args->v0.start; | |
90 | dmaobj->limit = args->v0.limit; | |
91 | } else | |
92 | return ret; | |
93 | ||
94 | *pdata = data; | |
95 | *psize = size; | |
96 | ||
97 | if (dmaobj->start > dmaobj->limit) | |
98 | return -EINVAL; | |
99 | ||
100 | switch (dmaobj->target) { | |
101 | case NV_DMA_V0_TARGET_VM: | |
f86770aa | 102 | dmaobj->target = NV_MEM_TARGET_VM; |
ebb945a9 | 103 | break; |
4acfd707 BS |
104 | case NV_DMA_V0_TARGET_VRAM: |
105 | if (!client->super) { | |
106 | if (dmaobj->limit >= pfb->ram->size - instmem->reserved) | |
107 | return -EACCES; | |
108 | if (device->card_type >= NV_50) | |
109 | return -EACCES; | |
110 | } | |
f86770aa | 111 | dmaobj->target = NV_MEM_TARGET_VRAM; |
ebb945a9 | 112 | break; |
4acfd707 BS |
113 | case NV_DMA_V0_TARGET_PCI: |
114 | if (!client->super) | |
115 | return -EACCES; | |
f86770aa | 116 | dmaobj->target = NV_MEM_TARGET_PCI; |
ebb945a9 | 117 | break; |
4acfd707 BS |
118 | case NV_DMA_V0_TARGET_PCI_US: |
119 | case NV_DMA_V0_TARGET_AGP: | |
120 | if (!client->super) | |
121 | return -EACCES; | |
f86770aa | 122 | dmaobj->target = NV_MEM_TARGET_PCI_NOSNOOP; |
ebb945a9 BS |
123 | break; |
124 | default: | |
125 | return -EINVAL; | |
126 | } | |
127 | ||
4acfd707 BS |
128 | switch (dmaobj->access) { |
129 | case NV_DMA_V0_ACCESS_VM: | |
f86770aa | 130 | dmaobj->access = NV_MEM_ACCESS_VM; |
ebb945a9 | 131 | break; |
4acfd707 | 132 | case NV_DMA_V0_ACCESS_RD: |
f86770aa | 133 | dmaobj->access = NV_MEM_ACCESS_RO; |
ebb945a9 | 134 | break; |
4acfd707 | 135 | case NV_DMA_V0_ACCESS_WR: |
f86770aa | 136 | dmaobj->access = NV_MEM_ACCESS_WO; |
ebb945a9 | 137 | break; |
4acfd707 | 138 | case NV_DMA_V0_ACCESS_RDWR: |
f86770aa | 139 | dmaobj->access = NV_MEM_ACCESS_RW; |
ebb945a9 BS |
140 | break; |
141 | default: | |
142 | return -EINVAL; | |
143 | } | |
144 | ||
f86770aa | 145 | return ret; |
ebb945a9 | 146 | } |
f86770aa | 147 | |
bc98540b BS |
148 | int |
149 | _nvkm_dmaeng_ctor(struct nouveau_object *parent, struct nouveau_object *engine, | |
150 | struct nouveau_oclass *oclass, void *data, u32 size, | |
151 | struct nouveau_object **pobject) | |
152 | { | |
153 | const struct nvkm_dmaeng_impl *impl = (void *)oclass; | |
154 | struct nouveau_dmaeng *dmaeng; | |
155 | int ret; | |
156 | ||
157 | ret = nouveau_engine_create(parent, engine, oclass, true, "DMAOBJ", | |
158 | "dmaobj", &dmaeng); | |
159 | *pobject = nv_object(dmaeng); | |
160 | if (ret) | |
161 | return ret; | |
162 | ||
b2c81703 BS |
163 | nv_engine(dmaeng)->sclass = impl->sclass; |
164 | dmaeng->bind = nvkm_dmaobj_bind; | |
bc98540b BS |
165 | return 0; |
166 | } |