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
27 #include <subdev/devinit.h>
28 #include <subdev/vga.h>
29
30 #include "fbmem.h"
31
32 struct nv20_devinit_priv {
33 struct nouveau_devinit base;
34 u8 owner;
35 };
36
37 static void
nv20_devinit_meminit(struct nouveau_devinit * devinit)38 nv20_devinit_meminit(struct nouveau_devinit *devinit)
39 {
40 struct nv20_devinit_priv *priv = (void *)devinit;
41 struct nouveau_device *device = nv_device(priv);
42 uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
43 uint32_t amount, off;
44 struct io_mapping *fb;
45
46 /* Map the framebuffer aperture */
47 fb = fbmem_init(nv_device(priv)->pdev);
48 if (!fb) {
49 nv_error(priv, "failed to map fb\n");
50 return;
51 }
52
53 nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
54
55 /* Allow full addressing */
56 nv_mask(priv, NV04_PFB_CFG0, 0, mask);
57
58 amount = nv_rd32(priv, 0x10020c);
59 for (off = amount; off > 0x2000000; off -= 0x2000000)
60 fbmem_poke(fb, off - 4, off);
61
62 amount = nv_rd32(priv, 0x10020c);
63 if (amount != fbmem_peek(fb, amount - 4))
64 /* IC missing - disable the upper half memory space. */
65 nv_mask(priv, NV04_PFB_CFG0, mask, 0);
66
67 fbmem_fini(fb);
68 }
69
70 static int
nv20_devinit_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)71 nv20_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
72 struct nouveau_oclass *oclass, void *data, u32 size,
73 struct nouveau_object **pobject)
74 {
75 struct nv20_devinit_priv *priv;
76 int ret;
77
78 ret = nouveau_devinit_create(parent, engine, oclass, &priv);
79 *pobject = nv_object(priv);
80 if (ret)
81 return ret;
82
83 priv->base.meminit = nv20_devinit_meminit;
84 return 0;
85 }
86
87 struct nouveau_oclass
88 nv20_devinit_oclass = {
89 .handle = NV_SUBDEV(DEVINIT, 0x20),
90 .ofuncs = &(struct nouveau_ofuncs) {
91 .ctor = nv20_devinit_ctor,
92 .dtor = nv04_devinit_dtor,
93 .init = nv04_devinit_init,
94 .fini = nv04_devinit_fini,
95 },
96 };
97