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