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79 lines
1.5 KiB
79 lines
1.5 KiB
/* 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 <[email protected]> |
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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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