97 lines
3.4 KiB
C
97 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2019, serveros, linyue
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _ASM_SW64_INSN_H
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#define _ASM_SW64_INSN_H
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#include <linux/types.h>
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/* Register numbers */
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enum {
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R26 = 26,
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R27,
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R28,
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R31 = 31,
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};
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#define BR_MAX_DISP 0xfffff
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/* SW64 instructions are always 32 bits. */
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#define SW64_INSN_SIZE 4
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#define ___SW64_RA(a) (((a) & 0x1f) << 21)
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#define ___SW64_RB(b) (((b) & 0x1f) << 16)
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#define ___SW64_SIMP_RC(c) (((c) & 0x1f))
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#define ___SW64_ST_DISP(disp) (((disp) & 0xffff))
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#define ___SW64_SYSCALL_FUNC(func) ((func) & 0xff)
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#define ___SW64_BR_DISP(disp) (((disp) & 0x1fffff))
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#define SW64_INSN_BIS 0x40000740
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#define SW64_INSN_CALL 0x04000000
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#define SW64_INSN_SYS_CALL 0x02000000
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#define SW64_INSN_BR 0x10000000
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#define SW64_BIS(a, b, c) (SW64_INSN_BIS | ___SW64_RA(a) | ___SW64_RB(b) | ___SW64_SIMP_RC(c))
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#define SW64_CALL(a, b, disp) (SW64_INSN_CALL | ___SW64_RA(a) | ___SW64_RB(b) | ___SW64_ST_DISP(disp))
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#define SW64_SYS_CALL(func) (SW64_INSN_SYS_CALL | ___SW64_SYSCALL_FUNC(func))
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#define SW64_BR(a, disp) (SW64_INSN_BR | ___SW64_RA(a) | ___SW64_BR_DISP(disp))
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extern int sw64_insn_read(void *addr, u32 *insnp);
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extern int sw64_insn_write(void *addr, u32 insn);
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extern int sw64_insn_double_write(void *addr, u64 insn);
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extern unsigned int sw64_insn_nop(void);
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extern unsigned int sw64_insn_call(unsigned int ra, unsigned int rb);
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extern unsigned int sw64_insn_sys_call(unsigned int num);
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extern unsigned int sw64_insn_br(unsigned int ra, unsigned long pc, unsigned long new_pc);
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#define SW64_OPCODE_RA(opcode) ((opcode >> 21) & 0x1f)
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#define SW64_INSN(name, opcode, mask) \
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static inline bool sw64_insn_is_##name(u32 insn) \
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{ \
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return (insn & mask) == opcode; \
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}
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SW64_INSN(sys_call_b, 0x00000000, 0xfc000000);
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SW64_INSN(sys_call, 0x00000001, 0xfc000000);
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SW64_INSN(call, 0x04000000, 0xfc000000);
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SW64_INSN(ret, 0x08000000, 0xfc000000);
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SW64_INSN(jmp, 0x0c000000, 0xfc000000);
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SW64_INSN(br, 0x10000000, 0xfc000000);
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SW64_INSN(bsr, 0x14000000, 0xfc000000);
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SW64_INSN(memb, 0x18000000, 0xfc00ffff);
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SW64_INSN(imemb, 0x18000001, 0xfc00ffff);
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SW64_INSN(rtc, 0x18000020, 0xfc00ffff);
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SW64_INSN(halt, 0x18000080, 0xfc00ffff);
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SW64_INSN(rd_f, 0x18001000, 0xfc00ffff);
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SW64_INSN(beq, 0xc0000000, 0xfc000000);
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SW64_INSN(bne, 0xc4000000, 0xfc000000);
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SW64_INSN(blt, 0xc8000000, 0xfc000000);
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SW64_INSN(ble, 0xcc000000, 0xfc000000);
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SW64_INSN(bgt, 0xd0000000, 0xfc000000);
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SW64_INSN(bge, 0xd4000000, 0xfc000000);
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SW64_INSN(blbc, 0xd8000000, 0xfc000000);
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SW64_INSN(blbs, 0xdc000000, 0xfc000000);
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SW64_INSN(fbeq, 0xe0000000, 0xfc000000);
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SW64_INSN(fbne, 0xe4000000, 0xfc000000);
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SW64_INSN(fblt, 0xe8000000, 0xfc000000);
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SW64_INSN(fble, 0xec000000, 0xfc000000);
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SW64_INSN(fbgt, 0xf0000000, 0xfc000000);
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SW64_INSN(fbge, 0xf4000000, 0xfc000000);
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SW64_INSN(lldw, 0x20000000, 0xfc00f000);
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SW64_INSN(lldl, 0x20001000, 0xfc00f000);
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#endif /* _ASM_SW64_INSN_H */
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