| David S. Miller | e2fdd7f | 2008-04-29 02:38:50 -0700 | [diff] [blame] | 1 | #ifdef CONFIG_KGDB |
| 2 | .globl arch_kgdb_breakpoint |
| 3 | .type arch_kgdb_breakpoint,#function |
| 4 | arch_kgdb_breakpoint: |
| 5 | ta 0x72 |
| 6 | retl |
| 7 | nop |
| 8 | .size arch_kgdb_breakpoint,.-arch_kgdb_breakpoint |
| 9 | #endif |
| 10 | |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 11 | .type __do_privact,#function |
| 12 | __do_privact: |
| 13 | mov TLB_SFSR, %g3 |
| 14 | stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit |
| 15 | membar #Sync |
| 16 | sethi %hi(109f), %g7 |
| 17 | ba,pt %xcc, etrap |
| 18 | 109: or %g7, %lo(109b), %g7 |
| 19 | call do_privact |
| 20 | add %sp, PTREGS_OFF, %o0 |
| David S. Miller | e9c7433 | 2016-04-27 17:27:37 -0400 | [diff] [blame] | 21 | ba,a,pt %xcc, rtrap |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 22 | .size __do_privact,.-__do_privact |
| 23 | |
| 24 | .type do_mna,#function |
| 25 | do_mna: |
| 26 | rdpr %tl, %g3 |
| 27 | cmp %g3, 1 |
| 28 | |
| 29 | /* Setup %g4/%g5 now as they are used in the |
| 30 | * winfixup code. |
| 31 | */ |
| 32 | mov TLB_SFSR, %g3 |
| 33 | mov DMMU_SFAR, %g4 |
| 34 | ldxa [%g4] ASI_DMMU, %g4 |
| 35 | ldxa [%g3] ASI_DMMU, %g5 |
| 36 | stxa %g0, [%g3] ASI_DMMU ! Clear FaultValid bit |
| 37 | membar #Sync |
| 38 | bgu,pn %icc, winfix_mna |
| 39 | rdpr %tpc, %g3 |
| 40 | |
| 41 | 1: sethi %hi(109f), %g7 |
| 42 | ba,pt %xcc, etrap |
| 43 | 109: or %g7, %lo(109b), %g7 |
| 44 | mov %l4, %o1 |
| 45 | mov %l5, %o2 |
| 46 | call mem_address_unaligned |
| 47 | add %sp, PTREGS_OFF, %o0 |
| David S. Miller | e9c7433 | 2016-04-27 17:27:37 -0400 | [diff] [blame] | 48 | ba,a,pt %xcc, rtrap |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 49 | .size do_mna,.-do_mna |
| 50 | |
| 51 | .type do_lddfmna,#function |
| 52 | do_lddfmna: |
| 53 | sethi %hi(109f), %g7 |
| 54 | mov TLB_SFSR, %g4 |
| 55 | ldxa [%g4] ASI_DMMU, %g5 |
| 56 | stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit |
| 57 | membar #Sync |
| 58 | mov DMMU_SFAR, %g4 |
| 59 | ldxa [%g4] ASI_DMMU, %g4 |
| 60 | ba,pt %xcc, etrap |
| 61 | 109: or %g7, %lo(109b), %g7 |
| 62 | mov %l4, %o1 |
| 63 | mov %l5, %o2 |
| 64 | call handle_lddfmna |
| 65 | add %sp, PTREGS_OFF, %o0 |
| David S. Miller | e9c7433 | 2016-04-27 17:27:37 -0400 | [diff] [blame] | 66 | ba,a,pt %xcc, rtrap |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 67 | .size do_lddfmna,.-do_lddfmna |
| 68 | |
| 69 | .type do_stdfmna,#function |
| 70 | do_stdfmna: |
| 71 | sethi %hi(109f), %g7 |
| 72 | mov TLB_SFSR, %g4 |
| 73 | ldxa [%g4] ASI_DMMU, %g5 |
| 74 | stxa %g0, [%g4] ASI_DMMU ! Clear FaultValid bit |
| 75 | membar #Sync |
| 76 | mov DMMU_SFAR, %g4 |
| 77 | ldxa [%g4] ASI_DMMU, %g4 |
| 78 | ba,pt %xcc, etrap |
| 79 | 109: or %g7, %lo(109b), %g7 |
| 80 | mov %l4, %o1 |
| 81 | mov %l5, %o2 |
| 82 | call handle_stdfmna |
| 83 | add %sp, PTREGS_OFF, %o0 |
| David S. Miller | e9c7433 | 2016-04-27 17:27:37 -0400 | [diff] [blame] | 84 | ba,a,pt %xcc, rtrap |
| David S. Miller | 6eda3a7 | 2008-04-28 00:47:20 -0700 | [diff] [blame] | 85 | .size do_stdfmna,.-do_stdfmna |
| 86 | |
| 87 | .type breakpoint_trap,#function |
| 88 | breakpoint_trap: |
| 89 | call sparc_breakpoint |
| 90 | add %sp, PTREGS_OFF, %o0 |
| 91 | ba,pt %xcc, rtrap |
| 92 | nop |
| 93 | .size breakpoint_trap,.-breakpoint_trap |