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 <core/memory.h>
28 #include <core/option.h>
29 #include <subdev/bios.h>
30 #include <subdev/bios/M0203.h>
31 #include <engine/gr.h>
32 #include <engine/mpeg.h>
33 
34 void
35 nvkm_fb_tile_fini(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
36 {
37 	fb->func->tile.fini(fb, region, tile);
38 }
39 
40 void
41 nvkm_fb_tile_init(struct nvkm_fb *fb, int region, u32 addr, u32 size,
42 		  u32 pitch, u32 flags, struct nvkm_fb_tile *tile)
43 {
44 	fb->func->tile.init(fb, region, addr, size, pitch, flags, tile);
45 }
46 
47 void
48 nvkm_fb_tile_prog(struct nvkm_fb *fb, int region, struct nvkm_fb_tile *tile)
49 {
50 	struct nvkm_device *device = fb->subdev.device;
51 	if (fb->func->tile.prog) {
52 		fb->func->tile.prog(fb, region, tile);
53 		if (device->gr)
54 			nvkm_engine_tile(&device->gr->engine, region);
55 		if (device->mpeg)
56 			nvkm_engine_tile(device->mpeg, region);
57 	}
58 }
59 
60 int
61 nvkm_fb_bios_memtype(struct nvkm_bios *bios)
62 {
63 	struct nvkm_subdev *subdev = &bios->subdev;
64 	struct nvkm_device *device = subdev->device;
65 	const u8 ramcfg = (nvkm_rd32(device, 0x101000) & 0x0000003c) >> 2;
66 	struct nvbios_M0203E M0203E;
67 	u8 ver, hdr;
68 
69 	if (nvbios_M0203Em(bios, ramcfg, &ver, &hdr, &M0203E)) {
70 		switch (M0203E.type) {
71 		case M0203E_TYPE_DDR2  : return NVKM_RAM_TYPE_DDR2;
72 		case M0203E_TYPE_DDR3  : return NVKM_RAM_TYPE_DDR3;
73 		case M0203E_TYPE_GDDR3 : return NVKM_RAM_TYPE_GDDR3;
74 		case M0203E_TYPE_GDDR5 : return NVKM_RAM_TYPE_GDDR5;
75 		case M0203E_TYPE_GDDR5X: return NVKM_RAM_TYPE_GDDR5X;
76 		case M0203E_TYPE_GDDR6 : return NVKM_RAM_TYPE_GDDR6;
77 		case M0203E_TYPE_HBM2  : return NVKM_RAM_TYPE_HBM2;
78 		default:
79 			nvkm_warn(subdev, "M0203E type %02x\n", M0203E.type);
80 			return NVKM_RAM_TYPE_UNKNOWN;
81 		}
82 	}
83 
84 	nvkm_warn(subdev, "M0203E not matched!\n");
85 	return NVKM_RAM_TYPE_UNKNOWN;
86 }
87 
88 static void
89 nvkm_fb_intr(struct nvkm_subdev *subdev)
90 {
91 	struct nvkm_fb *fb = nvkm_fb(subdev);
92 	if (fb->func->intr)
93 		fb->func->intr(fb);
94 }
95 
96 static int
97 nvkm_fb_oneinit(struct nvkm_subdev *subdev)
98 {
99 	struct nvkm_fb *fb = nvkm_fb(subdev);
100 	u32 tags = 0;
101 
102 	if (fb->func->ram_new) {
103 		int ret = fb->func->ram_new(fb, &fb->ram);
104 		if (ret) {
105 			nvkm_error(subdev, "vram setup failed, %d\n", ret);
106 			return ret;
107 		}
108 	}
109 
110 	if (fb->func->oneinit) {
111 		int ret = fb->func->oneinit(fb);
112 		if (ret)
113 			return ret;
114 	}
115 
116 	/* Initialise compression tag allocator.
117 	 *
118 	 * LTC oneinit() will override this on Fermi and newer.
119 	 */
120 	if (fb->func->tags) {
121 		tags = fb->func->tags(fb);
122 		nvkm_debug(subdev, "%d comptags\n", tags);
123 	}
124 
125 	return nvkm_mm_init(&fb->tags, 0, 0, tags, 1);
126 }
127 
128 static int
129 nvkm_fb_init(struct nvkm_subdev *subdev)
130 {
131 	struct nvkm_fb *fb = nvkm_fb(subdev);
132 	int ret, i;
133 
134 	if (fb->ram) {
135 		ret = nvkm_ram_init(fb->ram);
136 		if (ret)
137 			return ret;
138 	}
139 
140 	for (i = 0; i < fb->tile.regions; i++)
141 		fb->func->tile.prog(fb, i, &fb->tile.region[i]);
142 
143 	if (fb->func->init)
144 		fb->func->init(fb);
145 
146 	if (fb->func->init_remapper)
147 		fb->func->init_remapper(fb);
148 
149 	if (fb->func->init_page) {
150 		ret = fb->func->init_page(fb);
151 		if (WARN_ON(ret))
152 			return ret;
153 	}
154 
155 	if (fb->func->init_unkn)
156 		fb->func->init_unkn(fb);
157 	return 0;
158 }
159 
160 static void *
161 nvkm_fb_dtor(struct nvkm_subdev *subdev)
162 {
163 	struct nvkm_fb *fb = nvkm_fb(subdev);
164 	int i;
165 
166 	nvkm_memory_unref(&fb->mmu_wr);
167 	nvkm_memory_unref(&fb->mmu_rd);
168 
169 	for (i = 0; i < fb->tile.regions; i++)
170 		fb->func->tile.fini(fb, i, &fb->tile.region[i]);
171 
172 	nvkm_mm_fini(&fb->tags);
173 	nvkm_ram_del(&fb->ram);
174 
175 	if (fb->func->dtor)
176 		return fb->func->dtor(fb);
177 	return fb;
178 }
179 
180 static const struct nvkm_subdev_func
181 nvkm_fb = {
182 	.dtor = nvkm_fb_dtor,
183 	.oneinit = nvkm_fb_oneinit,
184 	.init = nvkm_fb_init,
185 	.intr = nvkm_fb_intr,
186 };
187 
188 void
189 nvkm_fb_ctor(const struct nvkm_fb_func *func, struct nvkm_device *device,
190 	     int index, struct nvkm_fb *fb)
191 {
192 	nvkm_subdev_ctor(&nvkm_fb, device, index, &fb->subdev);
193 	fb->func = func;
194 	fb->tile.regions = fb->func->tile.regions;
195 	fb->page = nvkm_longopt(device->cfgopt, "NvFbBigPage",
196 				fb->func->default_bigpage);
197 }
198 
199 int
200 nvkm_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
201 	     int index, struct nvkm_fb **pfb)
202 {
203 	if (!(*pfb = kzalloc(sizeof(**pfb), GFP_KERNEL)))
204 		return -ENOMEM;
205 	nvkm_fb_ctor(func, device, index, *pfb);
206 	return 0;
207 }
208