1 | /* $NetBSD: nouveau_subdev_devinit_nv20.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright (C) 2010 Francisco Jerez. |
5 | * All Rights Reserved. |
6 | * |
7 | * Permission is hereby granted, free of charge, to any person obtaining |
8 | * a copy of this software and associated documentation files (the |
9 | * "Software"), to deal in the Software without restriction, including |
10 | * without limitation the rights to use, copy, modify, merge, publish, |
11 | * distribute, sublicense, and/or sell copies of the Software, and to |
12 | * permit persons to whom the Software is furnished to do so, subject to |
13 | * the following conditions: |
14 | * |
15 | * The above copyright notice and this permission notice (including the |
16 | * next paragraph) shall be included in all copies or substantial |
17 | * portions of the Software. |
18 | * |
19 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
20 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
21 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. |
22 | * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE |
23 | * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
24 | * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
25 | * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
26 | * |
27 | */ |
28 | |
29 | #include <sys/cdefs.h> |
30 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_devinit_nv20.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $" ); |
31 | |
32 | #include "nv04.h" |
33 | #include "fbmem.h" |
34 | |
35 | static void |
36 | nv20_devinit_meminit(struct nouveau_devinit *devinit) |
37 | { |
38 | struct nv04_devinit_priv *priv = (void *)devinit; |
39 | struct nouveau_device *device = nv_device(priv); |
40 | uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900); |
41 | uint32_t amount, off; |
42 | struct io_mapping *fb; |
43 | |
44 | /* Map the framebuffer aperture */ |
45 | fb = fbmem_init(nv_device(priv)); |
46 | if (!fb) { |
47 | nv_error(priv, "failed to map fb\n" ); |
48 | return; |
49 | } |
50 | |
51 | nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1); |
52 | |
53 | /* Allow full addressing */ |
54 | nv_mask(priv, NV04_PFB_CFG0, 0, mask); |
55 | |
56 | amount = nv_rd32(priv, 0x10020c); |
57 | for (off = amount; off > 0x2000000; off -= 0x2000000) |
58 | fbmem_poke(fb, off - 4, off); |
59 | |
60 | amount = nv_rd32(priv, 0x10020c); |
61 | if (amount != fbmem_peek(fb, amount - 4)) |
62 | /* IC missing - disable the upper half memory space. */ |
63 | nv_mask(priv, NV04_PFB_CFG0, mask, 0); |
64 | |
65 | fbmem_fini(fb); |
66 | } |
67 | |
68 | struct nouveau_oclass * |
69 | nv20_devinit_oclass = &(struct nouveau_devinit_impl) { |
70 | .base.handle = NV_SUBDEV(DEVINIT, 0x20), |
71 | .base.ofuncs = &(struct nouveau_ofuncs) { |
72 | .ctor = nv04_devinit_ctor, |
73 | .dtor = nv04_devinit_dtor, |
74 | .init = nv04_devinit_init, |
75 | .fini = nv04_devinit_fini, |
76 | }, |
77 | .meminit = nv20_devinit_meminit, |
78 | .pll_set = nv04_devinit_pll_set, |
79 | }.base; |
80 | |