| 27,7 → 27,8 |
|---|
| # |
| |
| /** |
| * This file contains kernel trap table. |
| * @file |
| * @brief This file contains kernel trap table. |
| */ |
| |
| .register %g2, #scratch |
| 84,7 → 85,7 |
|---|
| .org trap_table + TT_MEM_ADDRESS_NOT_ALIGNED*ENTRY_SIZE |
| .global mem_address_not_aligned |
| mem_address_not_aligned: |
| PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
| MEM_ADDRESS_NOT_ALIGNED_HANDLER |
| |
| /* TT = 0x41, TL = 0, interrupt_level_1 handler */ |
| .org trap_table + TT_INTERRUPT_LEVEL_1*ENTRY_SIZE |
| 460,7 → 461,7 |
|---|
| .org trap_table + (TT_MEM_ADDRESS_NOT_ALIGNED+512)*ENTRY_SIZE |
| .global mem_address_not_aligned_high |
| mem_address_not_aligned_high: |
| PREEMPTIBLE_HANDLER do_mem_address_not_aligned |
| MEM_ADDRESS_NOT_ALIGNED_HANDLER |
| |
| /* TT = 0x64, TL > 0, fast_instruction_access_MMU_miss */ |
| .org trap_table + (TT_FAST_INSTRUCTION_ACCESS_MMU_MISS+512)*ENTRY_SIZE |
| 524,6 → 525,17 |
|---|
| * %g7 Pre-set as address of the userspace window buffer. |
| */ |
| .macro PREEMPTIBLE_HANDLER_TEMPLATE is_syscall |
| /* |
| * ASSERT(%tl == 1) |
| */ |
| rdpr %tl, %g3 |
| cmp %g3, 1 |
| be 1f |
| nop |
| 0: ba 0b ! this for debugging, if we ever get here |
| nop ! it will be easy to find |
| |
| 1: |
| .if NOT(\is_syscall) |
| rdpr %tstate, %g3 |
| andcc %g3, TSTATE_PRIV_BIT, %g0 ! if this trap came from the privileged mode... |
| 535,6 → 547,8 |
|---|
| */ |
| wrpr %g0, WSTATE_OTHER(0) | WSTATE_NORMAL(2), %wstate |
| |
| wrpr %g0, NWINDOW - 1, %cleanwin ! prevent unnecessary clean_window exceptions |
| |
| /* |
| * Switch to kernel stack. The old stack is |
| * automatically saved in the old window's %sp |
| 554,12 → 568,10 |
|---|
| |
| /* |
| * Mark the CANRESTORE windows as OTHER windows. |
| * Set CLEANWIN to NWINDOW-1 so that clean_window traps do not occur. |
| */ |
| rdpr %canrestore, %l0 |
| wrpr %l0, %otherwin |
| wrpr %g0, %canrestore |
| wrpr %g0, NWINDOW - 1, %cleanwin |
| |
| /* |
| * Switch to primary context 0. |
| 726,7 → 738,8 |
|---|
| wr %g0, ASI_DMMU, %asi |
| ldxa [VA_SECONDARY_CONTEXT_REG] %asi, %g1 |
| stxa %g1, [VA_PRIMARY_CONTEXT_REG] %asi |
| flush %o7 |
| rd %pc, %g1 |
| flush %g1 |
| |
| rdpr %cwp, %g1 |
| rdpr %otherwin, %g2 |