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1 | /* |
2 | * Copyright (C) 2010 Francisco Jerez. | |
3 | * All Rights Reserved. | |
4 | * | |
5 | * Permission is hereby granted, free of charge, to any person obtaining | |
6 | * a copy of this software and associated documentation files (the | |
7 | * "Software"), to deal in the Software without restriction, including | |
8 | * without limitation the rights to use, copy, modify, merge, publish, | |
9 | * distribute, sublicense, and/or sell copies of the Software, and to | |
10 | * permit persons to whom the Software is furnished to do so, subject to | |
11 | * the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice (including the | |
14 | * next paragraph) shall be included in all copies or substantial | |
15 | * portions of the Software. | |
16 | * | |
17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
18 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
19 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
20 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE | |
21 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | |
22 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | |
23 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
24 | * | |
25 | */ | |
26 | ||
cf336014 | 27 | #include "nv04.h" |
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28 | #include "fbmem.h" |
29 | ||
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30 | static void |
31 | nv20_devinit_meminit(struct nouveau_devinit *devinit) | |
32 | { | |
cf336014 | 33 | struct nv04_devinit_priv *priv = (void *)devinit; |
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34 | struct nouveau_device *device = nv_device(priv); |
35 | uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900); | |
36 | uint32_t amount, off; | |
37 | struct io_mapping *fb; | |
38 | ||
39 | /* Map the framebuffer aperture */ | |
420b9469 | 40 | fb = fbmem_init(nv_device(priv)); |
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41 | if (!fb) { |
42 | nv_error(priv, "failed to map fb\n"); | |
43 | return; | |
44 | } | |
45 | ||
46 | nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); | |
47 | ||
48 | /* Allow full addressing */ | |
49 | nv_mask(priv, NV04_PFB_CFG0, 0, mask); | |
50 | ||
51 | amount = nv_rd32(priv, 0x10020c); | |
52 | for (off = amount; off > 0x2000000; off -= 0x2000000) | |
53 | fbmem_poke(fb, off - 4, off); | |
54 | ||
55 | amount = nv_rd32(priv, 0x10020c); | |
56 | if (amount != fbmem_peek(fb, amount - 4)) | |
57 | /* IC missing - disable the upper half memory space. */ | |
58 | nv_mask(priv, NV04_PFB_CFG0, mask, 0); | |
59 | ||
60 | fbmem_fini(fb); | |
61 | } | |
62 | ||
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63 | struct nouveau_oclass * |
64 | nv20_devinit_oclass = &(struct nouveau_devinit_impl) { | |
65 | .base.handle = NV_SUBDEV(DEVINIT, 0x20), | |
66 | .base.ofuncs = &(struct nouveau_ofuncs) { | |
67 | .ctor = nv04_devinit_ctor, | |
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68 | .dtor = nv04_devinit_dtor, |
69 | .init = nv04_devinit_init, | |
70 | .fini = nv04_devinit_fini, | |
71 | }, | |
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72 | .meminit = nv20_devinit_meminit, |
73 | .pll_set = nv04_devinit_pll_set, | |
74 | }.base; |