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Lines 1192-1197
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| 1192 |
switch (bus) { |
1192 |
switch (bus) { |
| 1193 |
case 100: |
1193 |
case 100: |
| 1194 |
case 133: |
1194 |
case 133: |
|
|
1195 |
case 166: |
| 1196 |
case 267: |
| 1195 |
case 333: |
1197 |
case 333: |
| 1196 |
return (1); |
1198 |
return (1); |
| 1197 |
default: |
1199 |
default: |
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Lines 1217-1228
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| 1217 |
/* Figure out the bus clock. */ |
1219 |
/* Figure out the bus clock. */ |
| 1218 |
freq = atomic_load_acq_64(&tsc_freq) / 1000000; |
1220 |
freq = atomic_load_acq_64(&tsc_freq) / 1000000; |
| 1219 |
id = msr >> 32; |
1221 |
id = msr >> 32; |
| 1220 |
bus = freq / (id >> 8); |
1222 |
bus = (freq + (id >> 9)) / (id >> 8); |
|
|
1223 |
if( id & 0x4000 ) |
| 1224 |
bus = 2 * freq / ( (id >> 7 & 0x7e) + 1 ); |
| 1221 |
device_printf(dev, "Guessed bus clock (high) of %d MHz\n", bus); |
1225 |
device_printf(dev, "Guessed bus clock (high) of %d MHz\n", bus); |
| 1222 |
if (!bus_speed_ok(bus)) { |
1226 |
if (!bus_speed_ok(bus)) { |
| 1223 |
/* We may be running on the low frequency. */ |
1227 |
/* We may be running on the low frequency. */ |
| 1224 |
id = msr >> 48; |
1228 |
id = msr >> 48; |
| 1225 |
bus = freq / (id >> 8); |
1229 |
bus = freq / (id >> 8); |
|
|
1230 |
if( id & 0x4000 ) |
| 1231 |
bus = 2 * freq / ( (id >> 7 & 0x7e) + 1 ); |
| 1226 |
device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus); |
1232 |
device_printf(dev, "Guessed bus clock (low) of %d MHz\n", bus); |
| 1227 |
if (!bus_speed_ok(bus)) |
1233 |
if (!bus_speed_ok(bus)) |
| 1228 |
return (EOPNOTSUPP); |
1234 |
return (EOPNOTSUPP); |
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Lines 1230-1235
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| 1230 |
/* Calculate high frequency. */ |
1236 |
/* Calculate high frequency. */ |
| 1231 |
id = msr >> 32; |
1237 |
id = msr >> 32; |
| 1232 |
freq = ((id >> 8) & 0xff) * bus; |
1238 |
freq = ((id >> 8) & 0xff) * bus; |
|
|
1239 |
if( id & 0x4000 ) |
| 1240 |
freq =( (id >> 7 & 0x7e) + 1 ) * bus / 2; |
| 1233 |
} |
1241 |
} |
| 1234 |
|
1242 |
|
| 1235 |
/* Fill out a new freq table containing just the high and low freqs. */ |
1243 |
/* Fill out a new freq table containing just the high and low freqs. */ |
|
Lines 1246-1257
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|
| 1246 |
fp[0].volts = volts; |
1254 |
fp[0].volts = volts; |
| 1247 |
fp[0].id16 = id; |
1255 |
fp[0].id16 = id; |
| 1248 |
fp[0].power = CPUFREQ_VAL_UNKNOWN; |
1256 |
fp[0].power = CPUFREQ_VAL_UNKNOWN; |
| 1249 |
device_printf(dev, "Guessed high setting of %d MHz @ %d Mv\n", freq, |
1257 |
device_printf(dev, "Guessed high setting of %d MHz @ %d mV\n", freq, |
| 1250 |
volts); |
1258 |
volts); |
| 1251 |
|
1259 |
|
| 1252 |
/* Second, the low frequency. */ |
1260 |
/* Second, the low frequency. */ |
| 1253 |
id = msr >> 48; |
1261 |
id = msr >> 48; |
| 1254 |
freq = ((id >> 8) & 0xff) * bus; |
1262 |
freq = ((id >> 8) & 0xff) * bus; |
|
|
1263 |
if( id & 0x4000 ) |
| 1264 |
freq =( (id >> 7 & 0x7e) + 1 ) * bus / 2; |
| 1255 |
volts = id & 0xff; |
1265 |
volts = id & 0xff; |
| 1256 |
if (volts != 0) { |
1266 |
if (volts != 0) { |
| 1257 |
volts <<= 4; |
1267 |
volts <<= 4; |
|
Lines 1261-1267
Link Here
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| 1261 |
fp[1].volts = volts; |
1271 |
fp[1].volts = volts; |
| 1262 |
fp[1].id16 = id; |
1272 |
fp[1].id16 = id; |
| 1263 |
fp[1].power = CPUFREQ_VAL_UNKNOWN; |
1273 |
fp[1].power = CPUFREQ_VAL_UNKNOWN; |
| 1264 |
device_printf(dev, "Guessed low setting of %d MHz @ %d Mv\n", freq, |
1274 |
device_printf(dev, "Guessed low setting of %d MHz @ %d mV\n", freq, |
| 1265 |
volts); |
1275 |
volts); |
| 1266 |
|
1276 |
|
| 1267 |
/* Table is already terminated due to M_ZERO. */ |
1277 |
/* Table is already terminated due to M_ZERO. */ |