| 98,6 → 98,16 |
|---|
| mov %o1, %o0 |
| |
| jump_to_kernel: |
| /* |
| * We have copied code and now we need to guarantee cache coherence. |
| * 1. Make sure that the code we have moved has drained to main memory. |
| * 2. Invalidate I-cache. |
| * 3. Flush instruction pipeline. |
| */ |
| call icache_flush |
| membar #StoreStore |
| flush %i7 |
| |
| mov %o0, %l1 |
| mov %o1, %o0 |
| mov %o2, %o1 |
| 105,6 → 115,24 |
|---|
| jmp %l1 ! jump to kernel |
| nop |
| |
| #define ICACHE_SIZE 8192 |
| #define ICACHE_LINE_SIZE 32 |
| #define ICACHE_SET_BIT (1 << 13) |
| #define ASI_ICACHE_TAG 0x67 |
| |
| # Flush I-cache |
| icache_flush: |
| set ((ICACHE_SIZE - ICACHE_LINE_SIZE) | ICACHE_SET_BIT), %g1 |
| stxa %g0, [%g1] ASI_ICACHE_TAG |
| 0: membar #Sync |
| subcc %g1, ICACHE_LINE_SIZE, %g1 |
| bnz,pt %xcc, 0b |
| stxa %g0, [%g1] ASI_ICACHE_TAG |
| membar #Sync |
| retl |
| ! SF Erratum #51 |
| nop |
| |
| .global ofw |
| ofw: |
| save %sp, -STACK_WINDOW_SAVE_AREA_SIZE, %sp |