| 629,11 → 629,19 |
|---|
| * within a trap context possible. It is called from several other trap |
| * handlers. |
| * |
| * This function can be entered either with interrupt globals or alternate globals. |
| * Memory management trap handlers are obliged to switch to one of those global sets |
| * prior to calling this function. Register window management functions are not |
| * allowed to modify the alternate global registers. |
| * This function can be entered either with interrupt globals or alternate |
| * globals. Memory management trap handlers are obliged to switch to one of |
| * those global sets prior to calling this function. Register window management |
| * functions are not allowed to modify the alternate global registers. |
| * |
| * The kernel is designed to work on trap levels 0 - 4. For instance, the |
| * following can happen: |
| * TL0: kernel thread runs (CANSAVE=0, kernel stack not in DTLB) |
| * TL1: preemptible trap handler started after a tick interrupt |
| * TL2: preemptible trap handler did SAVE |
| * TL3: spill handler touched the kernel stack |
| * TL4: hardware or software failure |
| * |
| * Input registers: |
| * %g1 Address of function to call. |
| * %g2 First argument for the function. |