Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
30 lines
611 B
ArmAsm
30 lines
611 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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.globl utrap_trap
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.type utrap_trap,#function
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utrap_trap: /* %g3=handler,%g4=level */
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TRAP_LOAD_THREAD_REG(%g6, %g1)
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ldx [%g6 + TI_UTRAPS], %g1
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brnz,pt %g1, invoke_utrap
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nop
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ba,pt %xcc, etrap
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rd %pc, %g7
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mov %l4, %o1
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call bad_trap
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add %sp, PTREGS_OFF, %o0
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ba,a,pt %xcc, rtrap
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invoke_utrap:
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sllx %g3, 3, %g3
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ldx [%g1 + %g3], %g1
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save %sp, -128, %sp
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rdpr %tstate, %l6
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rdpr %cwp, %l7
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andn %l6, TSTATE_CWP, %l6
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wrpr %l6, %l7, %tstate
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rdpr %tpc, %l6
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rdpr %tnpc, %l7
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wrpr %g1, 0, %tnpc
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done
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.size utrap_trap,.-utrap_trap
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