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 int
nvc0_devinit_pll_set(struct nouveau_devinit * devinit,u32 type,u32 freq)28 nvc0_devinit_pll_set(struct nouveau_devinit *devinit, u32 type, u32 freq)
29 {
30 struct nv50_devinit_priv *priv = (void *)devinit;
31 struct nouveau_bios *bios = nouveau_bios(priv);
32 struct nvbios_pll info;
33 int N, fN, M, P;
34 int ret;
35
36 ret = nvbios_pll_parse(bios, type, &info);
37 if (ret)
38 return ret;
39
40 ret = nva3_pll_calc(nv_subdev(devinit), &info, freq, &N, &fN, &M, &P);
41 if (ret < 0)
42 return ret;
43
44 switch (info.type) {
45 case PLL_VPLL0:
46 case PLL_VPLL1:
47 case PLL_VPLL2:
48 case PLL_VPLL3:
49 nv_mask(priv, info.reg + 0x0c, 0x00000000, 0x00000100);
50 nv_wr32(priv, info.reg + 0x04, (P << 16) | (N << 8) | M);
51 nv_wr32(priv, info.reg + 0x10, fN << 16);
52 break;
53 default:
54 nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
55 ret = -EINVAL;
56 break;
57 }
58
59 return ret;
60 }
61
62 static u64
nvc0_devinit_disable(struct nouveau_devinit * devinit)63 nvc0_devinit_disable(struct nouveau_devinit *devinit)
64 {
65 struct nv50_devinit_priv *priv = (void *)devinit;
66 u32 r022500 = nv_rd32(priv, 0x022500);
67 u64 disable = 0ULL;
68
69 if (r022500 & 0x00000001)
70 disable |= (1ULL << NVDEV_ENGINE_DISP);
71
72 if (r022500 & 0x00000002) {
73 disable |= (1ULL << NVDEV_ENGINE_VP);
74 disable |= (1ULL << NVDEV_ENGINE_PPP);
75 }
76
77 if (r022500 & 0x00000004)
78 disable |= (1ULL << NVDEV_ENGINE_BSP);
79 if (r022500 & 0x00000008)
80 disable |= (1ULL << NVDEV_ENGINE_VENC);
81 if (r022500 & 0x00000100)
82 disable |= (1ULL << NVDEV_ENGINE_COPY0);
83 if (r022500 & 0x00000200)
84 disable |= (1ULL << NVDEV_ENGINE_COPY1);
85
86 return disable;
87 }
88
89 static int
nvc0_devinit_ctor(struct nouveau_object * parent,struct nouveau_object * engine,struct nouveau_oclass * oclass,void * data,u32 size,struct nouveau_object ** pobject)90 nvc0_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
91 struct nouveau_oclass *oclass, void *data, u32 size,
92 struct nouveau_object **pobject)
93 {
94 struct nv50_devinit_priv *priv;
95 int ret;
96
97 ret = nouveau_devinit_create(parent, engine, oclass, &priv);
98 *pobject = nv_object(priv);
99 if (ret)
100 return ret;
101
102 if (nv_rd32(priv, 0x022500) & 0x00000001)
103 priv->base.post = true;
104 return 0;
105 }
106
107 struct nouveau_oclass *
108 nvc0_devinit_oclass = &(struct nouveau_devinit_impl) {
109 .base.handle = NV_SUBDEV(DEVINIT, 0xc0),
110 .base.ofuncs = &(struct nouveau_ofuncs) {
111 .ctor = nvc0_devinit_ctor,
112 .dtor = _nouveau_devinit_dtor,
113 .init = nv50_devinit_init,
114 .fini = _nouveau_devinit_fini,
115 },
116 .pll_set = nvc0_devinit_pll_set,
117 .disable = nvc0_devinit_disable,
118 }.base;
119