1 /* SPDX-License-Identifier: GPL-2.0 */ <<
2 .globl utrap_trap 1 .globl utrap_trap
3 .type utrap_trap,#function 2 .type utrap_trap,#function
4 utrap_trap: /* %g3=handler,%g4=lev 3 utrap_trap: /* %g3=handler,%g4=level */
5 TRAP_LOAD_THREAD_REG(%g6, %g1) 4 TRAP_LOAD_THREAD_REG(%g6, %g1)
6 ldx [%g6 + TI_UTRAPS], %g1 5 ldx [%g6 + TI_UTRAPS], %g1
7 brnz,pt %g1, invoke_utrap 6 brnz,pt %g1, invoke_utrap
8 nop 7 nop
9 8
10 ba,pt %xcc, etrap 9 ba,pt %xcc, etrap
11 rd %pc, %g7 10 rd %pc, %g7
12 mov %l4, %o1 11 mov %l4, %o1
13 call bad_trap 12 call bad_trap
14 add %sp, PTREGS_OFF, %o0 13 add %sp, PTREGS_OFF, %o0
15 ba,a,pt %xcc, rtrap 14 ba,a,pt %xcc, rtrap
16 15
17 invoke_utrap: 16 invoke_utrap:
18 sllx %g3, 3, %g3 17 sllx %g3, 3, %g3
19 ldx [%g1 + %g3], %g1 18 ldx [%g1 + %g3], %g1
20 save %sp, -128, %sp 19 save %sp, -128, %sp
21 rdpr %tstate, %l6 20 rdpr %tstate, %l6
22 rdpr %cwp, %l7 21 rdpr %cwp, %l7
23 andn %l6, TSTATE_CWP, %l6 22 andn %l6, TSTATE_CWP, %l6
24 wrpr %l6, %l7, %tstate 23 wrpr %l6, %l7, %tstate
25 rdpr %tpc, %l6 24 rdpr %tpc, %l6
26 rdpr %tnpc, %l7 25 rdpr %tnpc, %l7
27 wrpr %g1, 0, %tnpc 26 wrpr %g1, 0, %tnpc
28 done 27 done
29 .size utrap_trap,.-utrap_tra 28 .size utrap_trap,.-utrap_trap
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