1 /*
2 * Copyright 2013 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 "nv50.h"
26
27 static int
nvaa_ram_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 datasize,struct nouveau_object ** pobject)28 nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
29 struct nouveau_oclass *oclass, void *data, u32 datasize,
30 struct nouveau_object **pobject)
31 {
32 const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
33 const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
34 struct nouveau_fb *pfb = nouveau_fb(parent);
35 struct nouveau_ram *ram;
36 int ret;
37
38 ret = nouveau_ram_create(parent, engine, oclass, &ram);
39 *pobject = nv_object(ram);
40 if (ret)
41 return ret;
42
43 ram->size = nv_rd32(pfb, 0x10020c);
44 ram->size = (ram->size & 0xffffff00) | ((ram->size & 0x000000ff) << 32);
45
46 ret = nouveau_mm_init(&pfb->vram, rsvd_head, (ram->size >> 12) -
47 (rsvd_head + rsvd_tail), 1);
48 if (ret)
49 return ret;
50
51 ram->type = NV_MEM_TYPE_STOLEN;
52 ram->stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
53 ram->get = nv50_ram_get;
54 ram->put = nv50_ram_put;
55 return 0;
56 }
57
58 struct nouveau_oclass
59 nvaa_ram_oclass = {
60 .ofuncs = &(struct nouveau_ofuncs) {
61 .ctor = nvaa_ram_ctor,
62 .dtor = _nouveau_ram_dtor,
63 .init = _nouveau_ram_init,
64 .fini = _nouveau_ram_fini,
65 },
66 };
67