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1 | /* |
2 | * Copyright 2009 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 <linux/firmware.h> | |
5a0e3ad6 | 26 | #include <linux/slab.h> |
054b93e4 BS |
27 | |
28 | #include "drmP.h" | |
29 | #include "nouveau_drv.h" | |
30 | ||
31 | struct nouveau_ctxprog { | |
32 | uint32_t signature; | |
33 | uint8_t version; | |
34 | uint16_t length; | |
35 | uint32_t data[]; | |
36 | } __attribute__ ((packed)); | |
37 | ||
38 | struct nouveau_ctxvals { | |
39 | uint32_t signature; | |
40 | uint8_t version; | |
41 | uint32_t length; | |
42 | struct { | |
43 | uint32_t offset; | |
44 | uint32_t value; | |
45 | } data[]; | |
46 | } __attribute__ ((packed)); | |
47 | ||
48 | int | |
49 | nouveau_grctx_prog_load(struct drm_device *dev) | |
50 | { | |
51 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
52 | struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph; | |
53 | const int chipset = dev_priv->chipset; | |
54 | const struct firmware *fw; | |
55 | const struct nouveau_ctxprog *cp; | |
56 | const struct nouveau_ctxvals *cv; | |
57 | char name[32]; | |
58 | int ret, i; | |
59 | ||
65ec01a9 BS |
60 | if (pgraph->accel_blocked) |
61 | return -ENODEV; | |
62 | ||
054b93e4 BS |
63 | if (!pgraph->ctxprog) { |
64 | sprintf(name, "nouveau/nv%02x.ctxprog", chipset); | |
65 | ret = request_firmware(&fw, name, &dev->pdev->dev); | |
66 | if (ret) { | |
67 | NV_ERROR(dev, "No ctxprog for NV%02x\n", chipset); | |
68 | return ret; | |
69 | } | |
70 | ||
71 | pgraph->ctxprog = kmalloc(fw->size, GFP_KERNEL); | |
72 | if (!pgraph->ctxprog) { | |
73 | NV_ERROR(dev, "OOM copying ctxprog\n"); | |
74 | release_firmware(fw); | |
75 | return -ENOMEM; | |
76 | } | |
77 | memcpy(pgraph->ctxprog, fw->data, fw->size); | |
78 | ||
79 | cp = pgraph->ctxprog; | |
80 | if (le32_to_cpu(cp->signature) != 0x5043564e || | |
81 | cp->version != 0 || | |
82 | le16_to_cpu(cp->length) != ((fw->size - 7) / 4)) { | |
83 | NV_ERROR(dev, "ctxprog invalid\n"); | |
84 | release_firmware(fw); | |
85 | nouveau_grctx_fini(dev); | |
86 | return -EINVAL; | |
87 | } | |
88 | release_firmware(fw); | |
89 | } | |
90 | ||
91 | if (!pgraph->ctxvals) { | |
92 | sprintf(name, "nouveau/nv%02x.ctxvals", chipset); | |
93 | ret = request_firmware(&fw, name, &dev->pdev->dev); | |
94 | if (ret) { | |
95 | NV_ERROR(dev, "No ctxvals for NV%02x\n", chipset); | |
96 | nouveau_grctx_fini(dev); | |
97 | return ret; | |
98 | } | |
99 | ||
100 | pgraph->ctxvals = kmalloc(fw->size, GFP_KERNEL); | |
7dad9ef6 JL |
101 | if (!pgraph->ctxvals) { |
102 | NV_ERROR(dev, "OOM copying ctxvals\n"); | |
054b93e4 BS |
103 | release_firmware(fw); |
104 | nouveau_grctx_fini(dev); | |
105 | return -ENOMEM; | |
106 | } | |
107 | memcpy(pgraph->ctxvals, fw->data, fw->size); | |
108 | ||
109 | cv = (void *)pgraph->ctxvals; | |
110 | if (le32_to_cpu(cv->signature) != 0x5643564e || | |
111 | cv->version != 0 || | |
112 | le32_to_cpu(cv->length) != ((fw->size - 9) / 8)) { | |
113 | NV_ERROR(dev, "ctxvals invalid\n"); | |
114 | release_firmware(fw); | |
115 | nouveau_grctx_fini(dev); | |
116 | return -EINVAL; | |
117 | } | |
118 | release_firmware(fw); | |
119 | } | |
120 | ||
121 | cp = pgraph->ctxprog; | |
122 | ||
123 | nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_INDEX, 0); | |
124 | for (i = 0; i < le16_to_cpu(cp->length); i++) | |
125 | nv_wr32(dev, NV40_PGRAPH_CTXCTL_UCODE_DATA, | |
126 | le32_to_cpu(cp->data[i])); | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
131 | void | |
132 | nouveau_grctx_fini(struct drm_device *dev) | |
133 | { | |
134 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
135 | struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph; | |
136 | ||
137 | if (pgraph->ctxprog) { | |
138 | kfree(pgraph->ctxprog); | |
139 | pgraph->ctxprog = NULL; | |
140 | } | |
141 | ||
142 | if (pgraph->ctxvals) { | |
143 | kfree(pgraph->ctxprog); | |
144 | pgraph->ctxvals = NULL; | |
145 | } | |
146 | } | |
147 | ||
148 | void | |
149 | nouveau_grctx_vals_load(struct drm_device *dev, struct nouveau_gpuobj *ctx) | |
150 | { | |
151 | struct drm_nouveau_private *dev_priv = dev->dev_private; | |
152 | struct nouveau_pgraph_engine *pgraph = &dev_priv->engine.graph; | |
153 | struct nouveau_ctxvals *cv = pgraph->ctxvals; | |
154 | int i; | |
155 | ||
156 | if (!cv) | |
157 | return; | |
158 | ||
159 | for (i = 0; i < le32_to_cpu(cv->length); i++) | |
160 | nv_wo32(dev, ctx, le32_to_cpu(cv->data[i].offset), | |
161 | le32_to_cpu(cv->data[i].value)); | |
162 | } |