projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7cafc0b8 DM |
1 | #include <asm/thread_info.h> |
| 2 | #include <asm/trap_block.h> | |
| 3 | #include <asm/spitfire.h> | |
| 4 | #include <asm/ptrace.h> | |
| 5 | #include <asm/head.h> | |
| 6 | ||
| 7 | .text | |
| 8 | .align 8 | |
| 9 | .globl user_rtt_fill_fixup_common | |
| 10 | user_rtt_fill_fixup_common: | |
| 11 | rdpr %cwp, %g1 | |
| 12 | add %g1, 1, %g1 | |
| 13 | wrpr %g1, 0x0, %cwp | |
| 14 | ||
| 15 | rdpr %wstate, %g2 | |
| 16 | sll %g2, 3, %g2 | |
| 17 | wrpr %g2, 0x0, %wstate | |
| 18 | ||
| 19 | /* We know %canrestore and %otherwin are both zero. */ | |
| 20 | ||
| 21 | sethi %hi(sparc64_kern_pri_context), %g2 | |
| 22 | ldx [%g2 + %lo(sparc64_kern_pri_context)], %g2 | |
| 23 | mov PRIMARY_CONTEXT, %g1 | |
| 24 | ||
| 25 | 661: stxa %g2, [%g1] ASI_DMMU | |
| 26 | .section .sun4v_1insn_patch, "ax" | |
| 27 | .word 661b | |
| 28 | stxa %g2, [%g1] ASI_MMU | |
| 29 | .previous | |
| 30 | ||
| 31 | sethi %hi(KERNBASE), %g1 | |
| 32 | flush %g1 | |
| 33 | ||
| 34 | mov %g4, %l4 | |
| 35 | mov %g5, %l5 | |
| 36 | brnz,pn %g3, 1f | |
| 37 | mov %g3, %l3 | |
| 38 | ||
| 39 | or %g4, FAULT_CODE_WINFIXUP, %g4 | |
| 40 | stb %g4, [%g6 + TI_FAULT_CODE] | |
| 41 | stx %g5, [%g6 + TI_FAULT_ADDR] | |
| 42 | 1: | |
| 43 | mov %g6, %l1 | |
| 44 | wrpr %g0, 0x0, %tl | |
| 45 | ||
| 46 | 661: nop | |
| 47 | .section .sun4v_1insn_patch, "ax" | |
| 48 | .word 661b | |
| 49 | SET_GL(0) | |
| 50 | .previous | |
| 51 | ||
| 52 | wrpr %g0, RTRAP_PSTATE, %pstate | |
| 53 | ||
| 54 | mov %l1, %g6 | |
| 55 | ldx [%g6 + TI_TASK], %g4 | |
| 56 | LOAD_PER_CPU_BASE(%g5, %g6, %g1, %g2, %g3) | |
| 57 | ||
| 58 | brnz,pn %l3, 1f | |
| 59 | nop | |
| 60 | ||
| 61 | call do_sparc64_fault | |
| 62 | add %sp, PTREGS_OFF, %o0 | |
| 63 | ba,pt %xcc, rtrap | |
| 64 | nop | |
| 65 | ||
| 66 | 1: cmp %g3, 2 | |
| 67 | bne,pn %xcc, 2f | |
| 68 | nop | |
| 69 | ||
| 70 | sethi %hi(tlb_type), %g1 | |
| 71 | lduw [%g1 + %lo(tlb_type)], %g1 | |
| 72 | cmp %g1, 3 | |
| 73 | bne,pt %icc, 1f | |
| 74 | add %sp, PTREGS_OFF, %o0 | |
| 75 | mov %l4, %o2 | |
| 76 | call sun4v_do_mna | |
| 77 | mov %l5, %o1 | |
| 78 | ba,a,pt %xcc, rtrap | |
| 79 | 1: mov %l4, %o1 | |
| 80 | mov %l5, %o2 | |
| 81 | call mem_address_unaligned | |
| 82 | nop | |
| 83 | ba,a,pt %xcc, rtrap | |
| 84 | ||
| 85 | 2: sethi %hi(tlb_type), %g1 | |
| 86 | mov %l4, %o1 | |
| 87 | lduw [%g1 + %lo(tlb_type)], %g1 | |
| 88 | mov %l5, %o2 | |
| 89 | cmp %g1, 3 | |
| 90 | bne,pt %icc, 1f | |
| 91 | add %sp, PTREGS_OFF, %o0 | |
| 92 | call sun4v_data_access_exception | |
| 93 | nop | |
| 94 | ba,a,pt %xcc, rtrap | |
| 0ae2d26f | 95 | nop |
| 7cafc0b8 DM |
96 | |
| 97 | 1: call spitfire_data_access_exception | |
| 98 | nop | |
| 99 | ba,a,pt %xcc, rtrap |