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eea5cf0f BS |
1 | /* |
2 | * Copyright 2017 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 | #include <nvif/mmu.h> | |
23 | ||
24 | #include <nvif/class.h> | |
25 | #include <nvif/if0008.h> | |
26 | ||
27 | void | |
28 | nvif_mmu_fini(struct nvif_mmu *mmu) | |
29 | { | |
30 | kfree(mmu->kind); | |
31 | kfree(mmu->type); | |
32 | kfree(mmu->heap); | |
33 | nvif_object_fini(&mmu->object); | |
34 | } | |
35 | ||
36 | int | |
37 | nvif_mmu_init(struct nvif_object *parent, s32 oclass, struct nvif_mmu *mmu) | |
38 | { | |
f5650478 BS |
39 | static const struct nvif_mclass mems[] = { |
40 | { NVIF_CLASS_MEM_GF100, -1 }, | |
41 | { NVIF_CLASS_MEM_NV50 , -1 }, | |
42 | { NVIF_CLASS_MEM_NV04 , -1 }, | |
43 | {} | |
44 | }; | |
eea5cf0f BS |
45 | struct nvif_mmu_v0 args; |
46 | int ret, i; | |
47 | ||
48 | args.version = 0; | |
49 | mmu->heap = NULL; | |
50 | mmu->type = NULL; | |
51 | mmu->kind = NULL; | |
52 | ||
53 | ret = nvif_object_init(parent, 0, oclass, &args, sizeof(args), | |
54 | &mmu->object); | |
55 | if (ret) | |
56 | goto done; | |
57 | ||
58 | mmu->dmabits = args.dmabits; | |
59 | mmu->heap_nr = args.heap_nr; | |
60 | mmu->type_nr = args.type_nr; | |
61 | mmu->kind_nr = args.kind_nr; | |
62 | ||
f5650478 BS |
63 | ret = nvif_mclass(&mmu->object, mems); |
64 | if (ret < 0) | |
65 | goto done; | |
66 | mmu->mem = mems[ret].oclass; | |
67 | ||
6da2ec56 KC |
68 | mmu->heap = kmalloc_array(mmu->heap_nr, sizeof(*mmu->heap), |
69 | GFP_KERNEL); | |
70 | mmu->type = kmalloc_array(mmu->type_nr, sizeof(*mmu->type), | |
71 | GFP_KERNEL); | |
eea5cf0f BS |
72 | if (ret = -ENOMEM, !mmu->heap || !mmu->type) |
73 | goto done; | |
74 | ||
6da2ec56 KC |
75 | mmu->kind = kmalloc_array(mmu->kind_nr, sizeof(*mmu->kind), |
76 | GFP_KERNEL); | |
eea5cf0f BS |
77 | if (!mmu->kind && mmu->kind_nr) |
78 | goto done; | |
79 | ||
80 | for (i = 0; i < mmu->heap_nr; i++) { | |
81 | struct nvif_mmu_heap_v0 args = { .index = i }; | |
82 | ||
83 | ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_HEAP, | |
84 | &args, sizeof(args)); | |
85 | if (ret) | |
86 | goto done; | |
87 | ||
88 | mmu->heap[i].size = args.size; | |
89 | } | |
90 | ||
91 | for (i = 0; i < mmu->type_nr; i++) { | |
92 | struct nvif_mmu_type_v0 args = { .index = i }; | |
93 | ||
94 | ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_TYPE, | |
95 | &args, sizeof(args)); | |
96 | if (ret) | |
97 | goto done; | |
98 | ||
99 | mmu->type[i].type = 0; | |
100 | if (args.vram) mmu->type[i].type |= NVIF_MEM_VRAM; | |
101 | if (args.host) mmu->type[i].type |= NVIF_MEM_HOST; | |
102 | if (args.comp) mmu->type[i].type |= NVIF_MEM_COMP; | |
103 | if (args.disp) mmu->type[i].type |= NVIF_MEM_DISP; | |
104 | if (args.kind ) mmu->type[i].type |= NVIF_MEM_KIND; | |
105 | if (args.mappable) mmu->type[i].type |= NVIF_MEM_MAPPABLE; | |
106 | if (args.coherent) mmu->type[i].type |= NVIF_MEM_COHERENT; | |
107 | if (args.uncached) mmu->type[i].type |= NVIF_MEM_UNCACHED; | |
108 | mmu->type[i].heap = args.heap; | |
109 | } | |
110 | ||
111 | if (mmu->kind_nr) { | |
112 | struct nvif_mmu_kind_v0 *kind; | |
113 | u32 argc = sizeof(*kind) + sizeof(*kind->data) * mmu->kind_nr; | |
114 | ||
115 | if (ret = -ENOMEM, !(kind = kmalloc(argc, GFP_KERNEL))) | |
116 | goto done; | |
117 | kind->version = 0; | |
118 | kind->count = mmu->kind_nr; | |
119 | ||
120 | ret = nvif_object_mthd(&mmu->object, NVIF_MMU_V0_KIND, | |
121 | kind, argc); | |
122 | if (ret == 0) | |
123 | memcpy(mmu->kind, kind->data, kind->count); | |
124 | kfree(kind); | |
125 | } | |
126 | ||
127 | done: | |
128 | if (ret) | |
129 | nvif_mmu_fini(mmu); | |
130 | return ret; | |
131 | } |