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2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
80 lines
1.5 KiB
C
80 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2016 Imagination Technologies
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* Author: Marcin Nowakowski <marcin.nowakowski@mips.com>
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*/
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#ifndef __PROBES_COMMON_H
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#define __PROBES_COMMON_H
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#include <asm/inst.h>
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int __insn_is_compact_branch(union mips_instruction insn);
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static inline int __insn_has_delay_slot(const union mips_instruction insn)
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{
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switch (insn.i_format.opcode) {
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/*
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* jr and jalr are in r_format format.
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*/
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case spec_op:
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switch (insn.r_format.func) {
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case jalr_op:
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case jr_op:
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return 1;
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}
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break;
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/*
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* This group contains:
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* bltz_op, bgez_op, bltzl_op, bgezl_op,
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* bltzal_op, bgezal_op, bltzall_op, bgezall_op.
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*/
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case bcond_op:
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switch (insn.i_format.rt) {
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case bltz_op:
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case bltzl_op:
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case bgez_op:
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case bgezl_op:
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case bltzal_op:
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case bltzall_op:
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case bgezal_op:
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case bgezall_op:
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case bposge32_op:
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return 1;
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}
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break;
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/*
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* These are unconditional and in j_format.
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*/
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case jal_op:
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case j_op:
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case beq_op:
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case beql_op:
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case bne_op:
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case bnel_op:
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case blez_op: /* not really i_format */
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case blezl_op:
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case bgtz_op:
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case bgtzl_op:
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return 1;
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/*
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* And now the FPA/cp1 branch instructions.
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*/
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case cop1_op:
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#ifdef CONFIG_CPU_CAVIUM_OCTEON
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case lwc2_op: /* This is bbit0 on Octeon */
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case ldc2_op: /* This is bbit032 on Octeon */
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case swc2_op: /* This is bbit1 on Octeon */
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case sdc2_op: /* This is bbit132 on Octeon */
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#endif
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return 1;
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}
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return 0;
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}
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#endif /* __PROBES_COMMON_H */
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