Add the rt linux 4.1.3-rt3 as base
[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / fb / base.c
1 /*
2  * Copyright 2012 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
26 #include <subdev/bios.h>
27 #include <subdev/bios/M0203.h>
28
29 int
30 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
31 {
32         const u8 ramcfg = (nv_rd32(bios, 0x101000) & 0x0000003c) >> 2;
33         struct nvbios_M0203E M0203E;
34         u8 ver, hdr;
35
36         if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
37                 switch (M0203E.type) {
38                 case M0203E_TYPE_DDR2 : return NV_MEM_TYPE_DDR2;
39                 case M0203E_TYPE_DDR3 : return NV_MEM_TYPE_DDR3;
40                 case M0203E_TYPE_GDDR3: return NV_MEM_TYPE_GDDR3;
41                 case M0203E_TYPE_GDDR5: return NV_MEM_TYPE_GDDR5;
42                 default:
43                         nv_warn(bios, "M0203E type %02x\n", M0203E.type);
44                         return NV_MEM_TYPE_UNKNOWN;
45                 }
46         }
47
48         nv_warn(bios, "M0203E not matched!\n");
49         return NV_MEM_TYPE_UNKNOWN;
50 }
51
52 int
53 _nvkm_fb_fini(struct nvkm_object *object, bool suspend)
54 {
55         struct nvkm_fb *pfb = (void *)object;
56         int ret;
57
58         if (pfb->ram) {
59                 ret = nv_ofuncs(pfb->ram)->fini(nv_object(pfb->ram), suspend);
60                 if (ret && suspend)
61                         return ret;
62         }
63
64         return nvkm_subdev_fini(&pfb->base, suspend);
65 }
66
67 int
68 _nvkm_fb_init(struct nvkm_object *object)
69 {
70         struct nvkm_fb *pfb = (void *)object;
71         int ret, i;
72
73         ret = nvkm_subdev_init(&pfb->base);
74         if (ret)
75                 return ret;
76
77         if (pfb->ram) {
78                 ret = nv_ofuncs(pfb->ram)->init(nv_object(pfb->ram));
79                 if (ret)
80                         return ret;
81         }
82
83         for (i = 0; i < pfb->tile.regions; i++)
84                 pfb->tile.prog(pfb, i, &pfb->tile.region[i]);
85
86         return 0;
87 }
88
89 void
90 _nvkm_fb_dtor(struct nvkm_object *object)
91 {
92         struct nvkm_fb *pfb = (void *)object;
93         int i;
94
95         for (i = 0; i < pfb->tile.regions; i++)
96                 pfb->tile.fini(pfb, i, &pfb->tile.region[i]);
97         nvkm_mm_fini(&pfb->tags);
98
99         if (pfb->ram) {
100                 nvkm_mm_fini(&pfb->vram);
101                 nvkm_object_ref(NULL, (struct nvkm_object **)&pfb->ram);
102         }
103
104         nvkm_subdev_destroy(&pfb->base);
105 }
106
107 int
108 nvkm_fb_create_(struct nvkm_object *parent, struct nvkm_object *engine,
109                 struct nvkm_oclass *oclass, int length, void **pobject)
110 {
111         struct nvkm_fb_impl *impl = (void *)oclass;
112         static const char *name[] = {
113                 [NV_MEM_TYPE_UNKNOWN] = "unknown",
114                 [NV_MEM_TYPE_STOLEN ] = "stolen system memory",
115                 [NV_MEM_TYPE_SGRAM  ] = "SGRAM",
116                 [NV_MEM_TYPE_SDRAM  ] = "SDRAM",
117                 [NV_MEM_TYPE_DDR1   ] = "DDR1",
118                 [NV_MEM_TYPE_DDR2   ] = "DDR2",
119                 [NV_MEM_TYPE_DDR3   ] = "DDR3",
120                 [NV_MEM_TYPE_GDDR2  ] = "GDDR2",
121                 [NV_MEM_TYPE_GDDR3  ] = "GDDR3",
122                 [NV_MEM_TYPE_GDDR4  ] = "GDDR4",
123                 [NV_MEM_TYPE_GDDR5  ] = "GDDR5",
124         };
125         struct nvkm_object *ram;
126         struct nvkm_fb *pfb;
127         int ret;
128
129         ret = nvkm_subdev_create_(parent, engine, oclass, 0, "PFB", "fb",
130                                   length, pobject);
131         pfb = *pobject;
132         if (ret)
133                 return ret;
134
135         pfb->memtype_valid = impl->memtype;
136
137         if (!impl->ram)
138                 return 0;
139
140         ret = nvkm_object_ctor(nv_object(pfb), NULL, impl->ram, NULL, 0, &ram);
141         if (ret) {
142                 nv_fatal(pfb, "error detecting memory configuration!!\n");
143                 return ret;
144         }
145
146         pfb->ram = (void *)ram;
147
148         if (!nvkm_mm_initialised(&pfb->vram)) {
149                 ret = nvkm_mm_init(&pfb->vram, 0, pfb->ram->size >> 12, 1);
150                 if (ret)
151                         return ret;
152         }
153
154         if (!nvkm_mm_initialised(&pfb->tags)) {
155                 ret = nvkm_mm_init(&pfb->tags, 0, pfb->ram->tags ?
156                                    ++pfb->ram->tags : 0, 1);
157                 if (ret)
158                         return ret;
159         }
160
161         nv_info(pfb, "RAM type: %s\n", name[pfb->ram->type]);
162         nv_info(pfb, "RAM size: %d MiB\n", (int)(pfb->ram->size >> 20));
163         nv_info(pfb, "   ZCOMP: %d tags\n", pfb->ram->tags);
164         return 0;
165 }