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#include "priv.h"
25
26static int
27nv20_ram_create(struct nvkm_object *parent, struct nvkm_object *engine,
28		struct nvkm_oclass *oclass, void *data, u32 size,
29		struct nvkm_object **pobject)
30{
31	struct nvkm_fb *pfb = nvkm_fb(parent);
32	struct nvkm_ram *ram;
33	u32 pbus1218 = nv_rd32(pfb, 0x001218);
34	int ret;
35
36	ret = nvkm_ram_create(parent, engine, oclass, &ram);
37	*pobject = nv_object(ram);
38	if (ret)
39		return ret;
40
41	switch (pbus1218 & 0x00000300) {
42	case 0x00000000: ram->type = NV_MEM_TYPE_SDRAM; break;
43	case 0x00000100: ram->type = NV_MEM_TYPE_DDR1; break;
44	case 0x00000200: ram->type = NV_MEM_TYPE_GDDR3; break;
45	case 0x00000300: ram->type = NV_MEM_TYPE_GDDR2; break;
46	}
47	ram->size  = (nv_rd32(pfb, 0x10020c) & 0xff000000);
48	ram->parts = (nv_rd32(pfb, 0x100200) & 0x00000003) + 1;
49	ram->tags  = nv_rd32(pfb, 0x100320);
50	return 0;
51}
52
53struct nvkm_oclass
54nv20_ram_oclass = {
55	.handle = 0,
56	.ofuncs = &(struct nvkm_ofuncs) {
57		.ctor = nv20_ram_create,
58		.dtor = _nvkm_ram_dtor,
59		.init = _nvkm_ram_init,
60		.fini = _nvkm_ram_fini,
61	}
62};
63