| 82,10 → 82,16 |
|---|
| privileged_opcode_tl0: |
| PREEMPTIBLE_HANDLER privileged_opcode |
| |
| /* TT = 0x20, TL = 0, fb_disabled handler */ |
| .org trap_table + TT_FP_DISABLED*ENTRY_SIZE |
| .global fb_disabled_tl0 |
| fp_disabled_tl0: |
| PREEMPTIBLE_HANDLER fp_disabled |
| |
| /* TT = 0x24, TL = 0, clean_window handler */ |
| .org trap_table + TT_CLEAN_WINDOW*ENTRY_SIZE |
| .global clean_window_handler_tl0 |
| clean_window_handler_tl0: |
| .global clean_window_tl0 |
| clean_window_tl0: |
| CLEAN_WINDOW_HANDLER |
| |
| /* TT = 0x28, TL = 0, division_by_zero */ |
| 489,8 → 495,8 |
|---|
| |
| /* TT = 0x24, TL > 0, clean_window handler */ |
| .org trap_table + (TT_CLEAN_WINDOW+512)*ENTRY_SIZE |
| .global clean_window_handler_tl1 |
| clean_window_handler_tl1: |
| .global clean_window_tl1 |
| clean_window_tl1: |
| CLEAN_WINDOW_HANDLER |
| |
| /* TT = 0x28, TL > 0, division_by_zero */ |
| 688,7 → 694,7 |
|---|
| stx %g3, [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC] |
| |
| wrpr %g0, 0, %tl |
| wrpr %g0, PSTATE_PRIV_BIT, %pstate |
| wrpr %g0, PSTATE_PRIV_BIT | PSTATE_PEF_BIT, %pstate |
| SAVE_GLOBALS |
| |
| /* |
| 705,6 → 711,7 |
|---|
| .endif |
| |
| RESTORE_GLOBALS |
| rdpr %pstate, %l1 ! we must preserve the PEF bit |
| wrpr %g0, PSTATE_AG_BIT | PSTATE_PRIV_BIT, %pstate |
| wrpr %g0, 1, %tl |
| |
| 716,6 → 723,15 |
|---|
| ldx [%sp + PREEMPTIBLE_HANDLER_STACK_FRAME_SIZE + STACK_BIAS + SAVED_TNPC], %g3 |
| |
| /* |
| * Copy PSTATE.PEF to the in-register copy of TSTATE. |
| */ |
| and %l1, PSTATE_PEF_BIT, %l1 |
| sllx %l1, TSTATE_PSTATE_SHIFT, %l1 |
| sethi %hi(TSTATE_PEF_BIT), %g4 |
| andn %g1, %g4, %g1 |
| or %g1, %l1, %g1 |
| |
| /* |
| * Restore TSTATE, TPC and TNPC from saved copies. |
| */ |
| wrpr %g1, 0, %tstate |
| 722,6 → 738,7 |
|---|
| wrpr %g2, 0, %tpc |
| wrpr %g3, 0, %tnpc |
| |
| |
| /* |
| * If OTHERWIN is zero, then all the userspace windows have been |
| * spilled to kernel memory (i.e. register window buffer). Moreover, |