projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 6eda3a75 DM |
1 | /* The registers for cross calls will be: |
| 2 | * | |
| 3 | * DATA 0: [low 32-bits] Address of function to call, jmp to this | |
| 4 | * [high 32-bits] MMU Context Argument 0, place in %g5 | |
| 5 | * DATA 1: Address Argument 1, place in %g1 | |
| 6 | * DATA 2: Address Argument 2, place in %g7 | |
| 7 | * | |
| 8 | * With this method we can do most of the cross-call tlb/cache | |
| 9 | * flushing very quickly. | |
| 10 | */ | |
| 11 | .align 32 | |
| 12 | .globl do_ivec | |
| 13 | .type do_ivec,#function | |
| 14 | do_ivec: | |
| 15 | mov 0x40, %g3 | |
| 16 | ldxa [%g3 + %g0] ASI_INTR_R, %g3 | |
| 17 | sethi %hi(KERNBASE), %g4 | |
| 18 | cmp %g3, %g4 | |
| 19 | bgeu,pn %xcc, do_ivec_xcall | |
| 20 | srlx %g3, 32, %g5 | |
| 21 | stxa %g0, [%g0] ASI_INTR_RECEIVE | |
| 22 | membar #Sync | |
| 23 | ||
| 24 | sethi %hi(ivector_table_pa), %g2 | |
| 25 | ldx [%g2 + %lo(ivector_table_pa)], %g2 | |
| 26 | sllx %g3, 4, %g3 | |
| 27 | add %g2, %g3, %g3 | |
| 28 | ||
| 29 | TRAP_LOAD_IRQ_WORK_PA(%g6, %g1) | |
| 30 | ||
| 31 | ldx [%g6], %g5 | |
| 32 | stxa %g5, [%g3] ASI_PHYS_USE_EC | |
| 33 | stx %g3, [%g6] | |
| 34 | wr %g0, 1 << PIL_DEVICE_IRQ, %set_softint | |
| 35 | retry | |
| 36 | do_ivec_xcall: | |
| 37 | mov 0x50, %g1 | |
| 38 | ldxa [%g1 + %g0] ASI_INTR_R, %g1 | |
| 39 | srl %g3, 0, %g3 | |
| 40 | ||
| 41 | mov 0x60, %g7 | |
| 42 | ldxa [%g7 + %g0] ASI_INTR_R, %g7 | |
| 43 | stxa %g0, [%g0] ASI_INTR_RECEIVE | |
| 44 | membar #Sync | |
| 45 | ba,pt %xcc, 1f | |
| 46 | nop | |
| 47 | ||
| 48 | .align 32 | |
| 49 | 1: jmpl %g3, %g0 | |
| 50 | nop | |
| 51 | .size do_ivec,.-do_ivec |