1/* $NetBSD: nouveau_subdev_fb_ramnv20.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $ */
2
3/*
4 * Copyright 2013 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_fb_ramnv20.c,v 1.1.1.1 2014/08/06 12:36:30 riastradh Exp $");
29
30#include "priv.h"
31
32static int
33nv20_ram_create(struct nouveau_object *parent, struct nouveau_object *engine,
34 struct nouveau_oclass *oclass, void *data, u32 size,
35 struct nouveau_object **pobject)
36{
37 struct nouveau_fb *pfb = nouveau_fb(parent);
38 struct nouveau_ram *ram;
39 u32 pbus1218 = nv_rd32(pfb, 0x001218);
40 int ret;
41
42 ret = nouveau_ram_create(parent, engine, oclass, &ram);
43 *pobject = nv_object(ram);
44 if (ret)
45 return ret;
46
47 switch (pbus1218 & 0x00000300) {
48 case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break;
49 case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break;
50 case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break;
51 case 0x00000300: ram->type = NV_MEM_TYPE_GDDR2; break;
52 }
53 ram->size = (nv_rd32(pfb, 0x10020c) & 0xff000000);
54 ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
55 ram->tags = nv_rd32(pfb, 0x100320);
56 return 0;
57}
58
59struct nouveau_oclass
60nv20_ram_oclass = {
61 .handle = 0,
62 .ofuncs = &(struct nouveau_ofuncs) {
63 .ctor = nv20_ram_create,
64 .dtor = _nouveau_ram_dtor,
65 .init = _nouveau_ram_init,
66 .fini = _nouveau_ram_fini,
67 }
68};
69