blob: 7a2d9a9bea59e0036f297516e0ef676f6f64e781 [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0 */
.globl utrap_trap
.type utrap_trap,#function
utrap_trap: /* %g3=handler,%g4=level */
TRAP_LOAD_THREAD_REG(%g6, %g1)
ldx [%g6 + TI_UTRAPS], %g1
brnz,pt %g1, invoke_utrap
nop
ba,pt %xcc, etrap
rd %pc, %g7
mov %l4, %o1
call bad_trap
add %sp, PTREGS_OFF, %o0
ba,a,pt %xcc, rtrap
invoke_utrap:
sllx %g3, 3, %g3
ldx [%g1 + %g3], %g1
save %sp, -128, %sp
rdpr %tstate, %l6
rdpr %cwp, %l7
andn %l6, TSTATE_CWP, %l6
wrpr %l6, %l7, %tstate
rdpr %tpc, %l6
rdpr %tnpc, %l7
wrpr %g1, 0, %tnpc
done
.size utrap_trap,.-utrap_trap