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 <subdev/bios.h>
25 #include <subdev/bios/bit.h>
26 #include <subdev/bios/rammap.h>
27
28 u32
nvbios_rammapTe(struct nvkm_bios * bios,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,u8 * snr,u8 * ssz)29 nvbios_rammapTe(struct nvkm_bios *bios, u8 *ver, u8 *hdr,
30 u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
31 {
32 struct bit_entry bit_P;
33 u32 rammap = 0x0000;
34
35 if (!bit_entry(bios, 'P', &bit_P)) {
36 if (bit_P.version == 2)
37 rammap = nvbios_rd32(bios, bit_P.offset + 4);
38
39 if (rammap) {
40 *ver = nvbios_rd08(bios, rammap + 0);
41 switch (*ver) {
42 case 0x10:
43 case 0x11:
44 *hdr = nvbios_rd08(bios, rammap + 1);
45 *cnt = nvbios_rd08(bios, rammap + 5);
46 *len = nvbios_rd08(bios, rammap + 2);
47 *snr = nvbios_rd08(bios, rammap + 4);
48 *ssz = nvbios_rd08(bios, rammap + 3);
49 return rammap;
50 default:
51 break;
52 }
53 }
54 }
55
56 return 0x0000;
57 }
58
59 u32
nvbios_rammapEe(struct nvkm_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len)60 nvbios_rammapEe(struct nvkm_bios *bios, int idx,
61 u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
62 {
63 u8 snr, ssz;
64 u32 rammap = nvbios_rammapTe(bios, ver, hdr, cnt, len, &snr, &ssz);
65 if (rammap && idx < *cnt) {
66 rammap = rammap + *hdr + (idx * (*len + (snr * ssz)));
67 *hdr = *len;
68 *cnt = snr;
69 *len = ssz;
70 return rammap;
71 }
72 return 0x0000;
73 }
74
75 /* Pretend a performance mode is also a rammap entry, helps coalesce entries
76 * later on */
77 u32
nvbios_rammapEp_from_perf(struct nvkm_bios * bios,u32 data,u8 size,struct nvbios_ramcfg * p)78 nvbios_rammapEp_from_perf(struct nvkm_bios *bios, u32 data, u8 size,
79 struct nvbios_ramcfg *p)
80 {
81 memset(p, 0x00, sizeof(*p));
82
83 p->rammap_00_16_20 = (nvbios_rd08(bios, data + 0x16) & 0x20) >> 5;
84 p->rammap_00_16_40 = (nvbios_rd08(bios, data + 0x16) & 0x40) >> 6;
85 p->rammap_00_17_02 = (nvbios_rd08(bios, data + 0x17) & 0x02) >> 1;
86
87 return data;
88 }
89
90 u32
nvbios_rammapEp(struct nvkm_bios * bios,int idx,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_ramcfg * p)91 nvbios_rammapEp(struct nvkm_bios *bios, int idx,
92 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ramcfg *p)
93 {
94 u32 data = nvbios_rammapEe(bios, idx, ver, hdr, cnt, len), temp;
95 memset(p, 0x00, sizeof(*p));
96 p->rammap_ver = *ver;
97 p->rammap_hdr = *hdr;
98 switch (!!data * *ver) {
99 case 0x10:
100 p->rammap_min = nvbios_rd16(bios, data + 0x00);
101 p->rammap_max = nvbios_rd16(bios, data + 0x02);
102 p->rammap_10_04_02 = (nvbios_rd08(bios, data + 0x04) & 0x02) >> 1;
103 p->rammap_10_04_08 = (nvbios_rd08(bios, data + 0x04) & 0x08) >> 3;
104 break;
105 case 0x11:
106 p->rammap_min = nvbios_rd16(bios, data + 0x00);
107 p->rammap_max = nvbios_rd16(bios, data + 0x02);
108 p->rammap_11_08_01 = (nvbios_rd08(bios, data + 0x08) & 0x01) >> 0;
109 p->rammap_11_08_0c = (nvbios_rd08(bios, data + 0x08) & 0x0c) >> 2;
110 p->rammap_11_08_10 = (nvbios_rd08(bios, data + 0x08) & 0x10) >> 4;
111 temp = nvbios_rd32(bios, data + 0x09);
112 p->rammap_11_09_01ff = (temp & 0x000001ff) >> 0;
113 p->rammap_11_0a_03fe = (temp & 0x0003fe00) >> 9;
114 p->rammap_11_0a_0400 = (temp & 0x00040000) >> 18;
115 p->rammap_11_0a_0800 = (temp & 0x00080000) >> 19;
116 p->rammap_11_0b_01f0 = (temp & 0x01f00000) >> 20;
117 p->rammap_11_0b_0200 = (temp & 0x02000000) >> 25;
118 p->rammap_11_0b_0400 = (temp & 0x04000000) >> 26;
119 p->rammap_11_0b_0800 = (temp & 0x08000000) >> 27;
120 p->rammap_11_0d = nvbios_rd08(bios, data + 0x0d);
121 p->rammap_11_0e = nvbios_rd08(bios, data + 0x0e);
122 p->rammap_11_0f = nvbios_rd08(bios, data + 0x0f);
123 p->rammap_11_11_0c = (nvbios_rd08(bios, data + 0x11) & 0x0c) >> 2;
124 break;
125 default:
126 data = 0;
127 break;
128 }
129 return data;
130 }
131
132 u32
nvbios_rammapEm(struct nvkm_bios * bios,u16 mhz,u8 * ver,u8 * hdr,u8 * cnt,u8 * len,struct nvbios_ramcfg * info)133 nvbios_rammapEm(struct nvkm_bios *bios, u16 mhz,
134 u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ramcfg *info)
135 {
136 int idx = 0;
137 u32 data;
138 while ((data = nvbios_rammapEp(bios, idx++, ver, hdr, cnt, len, info))) {
139 if (mhz >= info->rammap_min && mhz <= info->rammap_max)
140 break;
141 }
142 return data;
143 }
144
145 u32
nvbios_rammapSe(struct nvkm_bios * bios,u32 data,u8 ever,u8 ehdr,u8 ecnt,u8 elen,int idx,u8 * ver,u8 * hdr)146 nvbios_rammapSe(struct nvkm_bios *bios, u32 data,
147 u8 ever, u8 ehdr, u8 ecnt, u8 elen, int idx, u8 *ver, u8 *hdr)
148 {
149 if (idx < ecnt) {
150 data = data + ehdr + (idx * elen);
151 *ver = ever;
152 *hdr = elen;
153 return data;
154 }
155 return 0;
156 }
157
158 u32
nvbios_rammapSp_from_perf(struct nvkm_bios * bios,u32 data,u8 size,int idx,struct nvbios_ramcfg * p)159 nvbios_rammapSp_from_perf(struct nvkm_bios *bios, u32 data, u8 size, int idx,
160 struct nvbios_ramcfg *p)
161 {
162 data += (idx * size);
163
164 if (size < 11)
165 return 0x00000000;
166
167 p->ramcfg_ver = 0;
168 p->ramcfg_timing = nvbios_rd08(bios, data + 0x01);
169 p->ramcfg_00_03_01 = (nvbios_rd08(bios, data + 0x03) & 0x01) >> 0;
170 p->ramcfg_00_03_02 = (nvbios_rd08(bios, data + 0x03) & 0x02) >> 1;
171 p->ramcfg_DLLoff = (nvbios_rd08(bios, data + 0x03) & 0x04) >> 2;
172 p->ramcfg_00_03_08 = (nvbios_rd08(bios, data + 0x03) & 0x08) >> 3;
173 p->ramcfg_RON = (nvbios_rd08(bios, data + 0x03) & 0x10) >> 3;
174 p->ramcfg_FBVDDQ = (nvbios_rd08(bios, data + 0x03) & 0x80) >> 7;
175 p->ramcfg_00_04_02 = (nvbios_rd08(bios, data + 0x04) & 0x02) >> 1;
176 p->ramcfg_00_04_04 = (nvbios_rd08(bios, data + 0x04) & 0x04) >> 2;
177 p->ramcfg_00_04_20 = (nvbios_rd08(bios, data + 0x04) & 0x20) >> 5;
178 p->ramcfg_00_05 = (nvbios_rd08(bios, data + 0x05) & 0xff) >> 0;
179 p->ramcfg_00_06 = (nvbios_rd08(bios, data + 0x06) & 0xff) >> 0;
180 p->ramcfg_00_07 = (nvbios_rd08(bios, data + 0x07) & 0xff) >> 0;
181 p->ramcfg_00_08 = (nvbios_rd08(bios, data + 0x08) & 0xff) >> 0;
182 p->ramcfg_00_09 = (nvbios_rd08(bios, data + 0x09) & 0xff) >> 0;
183 p->ramcfg_00_0a_0f = (nvbios_rd08(bios, data + 0x0a) & 0x0f) >> 0;
184 p->ramcfg_00_0a_f0 = (nvbios_rd08(bios, data + 0x0a) & 0xf0) >> 4;
185
186 return data;
187 }
188
189 u32
nvbios_rammapSp(struct nvkm_bios * bios,u32 data,u8 ever,u8 ehdr,u8 ecnt,u8 elen,int idx,u8 * ver,u8 * hdr,struct nvbios_ramcfg * p)190 nvbios_rammapSp(struct nvkm_bios *bios, u32 data,
191 u8 ever, u8 ehdr, u8 ecnt, u8 elen, int idx,
192 u8 *ver, u8 *hdr, struct nvbios_ramcfg *p)
193 {
194 data = nvbios_rammapSe(bios, data, ever, ehdr, ecnt, elen, idx, ver, hdr);
195 p->ramcfg_ver = *ver;
196 p->ramcfg_hdr = *hdr;
197 switch (!!data * *ver) {
198 case 0x10:
199 p->ramcfg_timing = nvbios_rd08(bios, data + 0x01);
200 p->ramcfg_10_02_01 = (nvbios_rd08(bios, data + 0x02) & 0x01) >> 0;
201 p->ramcfg_10_02_02 = (nvbios_rd08(bios, data + 0x02) & 0x02) >> 1;
202 p->ramcfg_10_02_04 = (nvbios_rd08(bios, data + 0x02) & 0x04) >> 2;
203 p->ramcfg_10_02_08 = (nvbios_rd08(bios, data + 0x02) & 0x08) >> 3;
204 p->ramcfg_10_02_10 = (nvbios_rd08(bios, data + 0x02) & 0x10) >> 4;
205 p->ramcfg_10_02_20 = (nvbios_rd08(bios, data + 0x02) & 0x20) >> 5;
206 p->ramcfg_DLLoff = (nvbios_rd08(bios, data + 0x02) & 0x40) >> 6;
207 p->ramcfg_10_03_0f = (nvbios_rd08(bios, data + 0x03) & 0x0f) >> 0;
208 p->ramcfg_10_04_01 = (nvbios_rd08(bios, data + 0x04) & 0x01) >> 0;
209 p->ramcfg_FBVDDQ = (nvbios_rd08(bios, data + 0x04) & 0x08) >> 3;
210 p->ramcfg_10_05 = (nvbios_rd08(bios, data + 0x05) & 0xff) >> 0;
211 p->ramcfg_10_06 = (nvbios_rd08(bios, data + 0x06) & 0xff) >> 0;
212 p->ramcfg_10_07 = (nvbios_rd08(bios, data + 0x07) & 0xff) >> 0;
213 p->ramcfg_10_08 = (nvbios_rd08(bios, data + 0x08) & 0xff) >> 0;
214 p->ramcfg_10_09_0f = (nvbios_rd08(bios, data + 0x09) & 0x0f) >> 0;
215 p->ramcfg_10_09_f0 = (nvbios_rd08(bios, data + 0x09) & 0xf0) >> 4;
216 break;
217 case 0x11:
218 p->ramcfg_timing = nvbios_rd08(bios, data + 0x00);
219 p->ramcfg_11_01_01 = (nvbios_rd08(bios, data + 0x01) & 0x01) >> 0;
220 p->ramcfg_11_01_02 = (nvbios_rd08(bios, data + 0x01) & 0x02) >> 1;
221 p->ramcfg_11_01_04 = (nvbios_rd08(bios, data + 0x01) & 0x04) >> 2;
222 p->ramcfg_11_01_08 = (nvbios_rd08(bios, data + 0x01) & 0x08) >> 3;
223 p->ramcfg_11_01_10 = (nvbios_rd08(bios, data + 0x01) & 0x10) >> 4;
224 p->ramcfg_DLLoff = (nvbios_rd08(bios, data + 0x01) & 0x20) >> 5;
225 p->ramcfg_11_01_40 = (nvbios_rd08(bios, data + 0x01) & 0x40) >> 6;
226 p->ramcfg_11_01_80 = (nvbios_rd08(bios, data + 0x01) & 0x80) >> 7;
227 p->ramcfg_11_02_03 = (nvbios_rd08(bios, data + 0x02) & 0x03) >> 0;
228 p->ramcfg_11_02_04 = (nvbios_rd08(bios, data + 0x02) & 0x04) >> 2;
229 p->ramcfg_11_02_08 = (nvbios_rd08(bios, data + 0x02) & 0x08) >> 3;
230 p->ramcfg_11_02_10 = (nvbios_rd08(bios, data + 0x02) & 0x10) >> 4;
231 p->ramcfg_11_02_40 = (nvbios_rd08(bios, data + 0x02) & 0x40) >> 6;
232 p->ramcfg_11_02_80 = (nvbios_rd08(bios, data + 0x02) & 0x80) >> 7;
233 p->ramcfg_11_03_0f = (nvbios_rd08(bios, data + 0x03) & 0x0f) >> 0;
234 p->ramcfg_11_03_30 = (nvbios_rd08(bios, data + 0x03) & 0x30) >> 4;
235 p->ramcfg_11_03_c0 = (nvbios_rd08(bios, data + 0x03) & 0xc0) >> 6;
236 p->ramcfg_11_03_f0 = (nvbios_rd08(bios, data + 0x03) & 0xf0) >> 4;
237 p->ramcfg_11_04 = (nvbios_rd08(bios, data + 0x04) & 0xff) >> 0;
238 p->ramcfg_11_06 = (nvbios_rd08(bios, data + 0x06) & 0xff) >> 0;
239 p->ramcfg_11_07_02 = (nvbios_rd08(bios, data + 0x07) & 0x02) >> 1;
240 p->ramcfg_11_07_04 = (nvbios_rd08(bios, data + 0x07) & 0x04) >> 2;
241 p->ramcfg_11_07_08 = (nvbios_rd08(bios, data + 0x07) & 0x08) >> 3;
242 p->ramcfg_11_07_10 = (nvbios_rd08(bios, data + 0x07) & 0x10) >> 4;
243 p->ramcfg_11_07_40 = (nvbios_rd08(bios, data + 0x07) & 0x40) >> 6;
244 p->ramcfg_11_07_80 = (nvbios_rd08(bios, data + 0x07) & 0x80) >> 7;
245 p->ramcfg_11_08_01 = (nvbios_rd08(bios, data + 0x08) & 0x01) >> 0;
246 p->ramcfg_11_08_02 = (nvbios_rd08(bios, data + 0x08) & 0x02) >> 1;
247 p->ramcfg_11_08_04 = (nvbios_rd08(bios, data + 0x08) & 0x04) >> 2;
248 p->ramcfg_11_08_08 = (nvbios_rd08(bios, data + 0x08) & 0x08) >> 3;
249 p->ramcfg_11_08_10 = (nvbios_rd08(bios, data + 0x08) & 0x10) >> 4;
250 p->ramcfg_11_08_20 = (nvbios_rd08(bios, data + 0x08) & 0x20) >> 5;
251 p->ramcfg_11_09 = (nvbios_rd08(bios, data + 0x09) & 0xff) >> 0;
252 break;
253 default:
254 data = 0;
255 break;
256 }
257 return data;
258 }
259