I did some trial and error and nailed down the chip and line number of a few pins using a relay and patience.
I then stared at the numbers in the bios for the pins and realized there is a pattern.
Here are my results, most of them checked by hand using the gpioset utility.
| bios_number | physical_pin | chip_number | line_number |
|---|---|---|---|
| 60 | 10 | 0 | 60 |
| 61 | 8 | 0 | 61 |
| 79 | 23 | 1 | 3 |
| 80 | 24 | 1 | 4 |
| 81 | 26 | 1 | 5 |
| 82 | 21 | 1 | 6 |
| 83 | 19 | 1 | 7 |
| 88 | 11 | 1 | 12 |
| 110 | 3 | 1 | 34 |
| 111 | 5 | 1 | 35 |
| 112 | 27 | 1 | 36 |
| 113 | 28 | 1 | 37 |
| 114 | 22 | 1 | 38 |
| 115 | 32 | 1 | 39 |
| 134 | 36 | 1 | 58 |
| 136 | 13 | 1 | 60 |
| 137 | 15 | 1 | 61 |
| 139 | 29 | 1 | 63 |
| 140 | 31 | 1 | 64 |
| 141 | 33 | 1 | 65 |
| 143 | 37 | 1 | 67 |
| 145 | 16 | 1 | 69 |
| 146 | 18 | 1 | 70 |
| 161 | 7 | 2 | 5 |
| 162 | 12 | 2 | 6 |
| 163 | 35 | 2 | 7 |
| 164 | 38 | 2 | 8 |
| 165 | 40 | 2 | 9 |