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 #include "ram.h"
26 
27 #include <subdev/bios.h>
28 #include <subdev/bios/M0203.h>
29 
30 int
31 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
32 {
33 	struct nvkm_subdev *subdev = &bios->subdev;
34 	struct nvkm_device *device = subdev->device;
35 	const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
36 	struct nvbios_M0203E M0203E;
37 	u8 ver, hdr;
38 
39 	if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
40 		switch (M0203E.type) {
41 		case M0203E_TYPE_DDR2 : return NVKM_RAM_TYPE_DDR2;
42 		case M0203E_TYPE_DDR3 : return NVKM_RAM_TYPE_DDR3;
43 		case M0203E_TYPE_GDDR3: return NVKM_RAM_TYPE_GDDR3;
44 		case M0203E_TYPE_GDDR5: return NVKM_RAM_TYPE_GDDR5;
45 		default:
46 			nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
47 			return NVKM_RAM_TYPE_UNKNOWN;
48 		}
49 	}
50 
51 	nvkm_warn(subdev, "M0203E not matched!\n");
52 	return NVKM_RAM_TYPE_UNKNOWN;
53 }
54 
55 int
56 _nvkm_fb_fini(struct nvkm_object *object, bool suspend)
57 {
58 	struct nvkm_fb *fb = (void *)object;
59 	return nvkm_subdev_fini_old(&fb->subdev, suspend);
60 }
61 
62 int
63 _nvkm_fb_init(struct nvkm_object *object)
64 {
65 	struct nvkm_fb *fb = (void *)object;
66 	int ret, i;
67 
68 	ret = nvkm_subdev_init_old(&fb->subdev);
69 	if (ret)
70 		return ret;
71 
72 	if (fb->ram)
73 		nvkm_ram_init(fb->ram);
74 
75 	for (i = 0; i < fb->tile.regions; i++)
76 		fb->tile.prog(fb, i, &fb->tile.region[i]);
77 
78 	return 0;
79 }
80 
81 void
82 _nvkm_fb_dtor(struct nvkm_object *object)
83 {
84 	struct nvkm_fb *fb = (void *)object;
85 	int i;
86 
87 	for (i = 0; i < fb->tile.regions; i++)
88 		fb->tile.fini(fb, i, &fb->tile.region[i]);
89 
90 	nvkm_ram_del(&fb->ram);
91 	nvkm_subdev_destroy(&fb->subdev);
92 }
93 
94 int
95 nvkm_fb_create_(struct nvkm_object *parent, struct nvkm_object *engine,
96 		struct nvkm_oclass *oclass, int length, void **pobject)
97 {
98 	struct nvkm_fb_impl *impl = (void *)oclass;
99 	struct nvkm_fb *fb;
100 	int ret;
101 
102 	ret = nvkm_subdev_create_(parent, engine, oclass, 0, "PFB", "fb",
103 				  length, pobject);
104 	fb = *pobject;
105 	if (ret)
106 		return ret;
107 
108 	fb->memtype_valid = impl->memtype;
109 
110 	if (!impl->ram_new)
111 		return 0;
112 
113 	ret = impl->ram_new(fb, &fb->ram);
114 	if (ret) {
115 		nvkm_error(&fb->subdev, "vram init failed, %d\n", ret);
116 		return ret;
117 	}
118 
119 	return 0;
120 }
121