mips/net/bpf_jit_comp.c

61  *    Emit instructions for an ALU or ALU64 immediate or register operation.
97  *    Emit instructions for an JMP or JMP32 immediate or register operation.
100  *    Emit any instructions needed to finish the jump. This includes a nop
135 					emit(ctx, sw, reg, depth, MIPS_R_SP);  in push_regs()
137 					emit(ctx, sd, reg, depth, MIPS_R_SP);  in push_regs()
158 					emit(ctx, lw, reg, depth, MIPS_R_SP);  in pop_regs()
160 					emit(ctx, ld, reg, depth, MIPS_R_SP);  in pop_regs()
195 		emit(ctx, addiu, dst, MIPS_R_ZERO, imm);  in emit_mov_i()
197 		emit(ctx, lui, dst, (s16)((u32)imm >> 16));  in emit_mov_i()
198 		emit(ctx, ori, dst, dst, (u16)(imm & 0xffff));  in emit_mov_i()
206 	emit(ctx, ori, dst, src, 0);  in emit_mov_r()
303 		emit(ctx, subu, dst, MIPS_R_ZERO, dst);  in emit_alu_i()
307 		emit(ctx, andi, dst, dst, (u16)imm);  in emit_alu_i()
311 		emit(ctx, ori, dst, dst, (u16)imm);  in emit_alu_i()
315 		emit(ctx, xori, dst, dst, (u16)imm);  in emit_alu_i()
319 		emit(ctx, sll, dst, dst, imm);  in emit_alu_i()
323 		emit(ctx, srl, dst, dst, imm);  in emit_alu_i()
327 		emit(ctx, sra, dst, dst, imm);  in emit_alu_i()
331 		emit(ctx, addiu, dst, dst, imm);  in emit_alu_i()
335 		emit(ctx, addiu, dst, dst, -imm);  in emit_alu_i()
347 		emit(ctx, and, dst, dst, src);  in emit_alu_r()
351 		emit(ctx, or, dst, dst, src);  in emit_alu_r()
355 		emit(ctx, xor, dst, dst, src);  in emit_alu_r()
359 		emit(ctx, sllv, dst, dst, src);  in emit_alu_r()
363 		emit(ctx, srlv, dst, dst, src);  in emit_alu_r()
367 		emit(ctx, srav, dst, dst, src);  in emit_alu_r()
371 		emit(ctx, addu, dst, dst, src);  in emit_alu_r()
375 		emit(ctx, subu, dst, dst, src);  in emit_alu_r()
380 			emit(ctx, mul, dst, dst, src);  in emit_alu_r()
382 			emit(ctx, multu, dst, src);  in emit_alu_r()
383 			emit(ctx, mflo, dst);  in emit_alu_r()
389 			emit(ctx, divu_r6, dst, dst, src);  in emit_alu_r()
391 			emit(ctx, divu, dst, src);  in emit_alu_r()
392 			emit(ctx, mflo, dst);  in emit_alu_r()
398 			emit(ctx, modu, dst, dst, src);  in emit_alu_r()
400 			emit(ctx, divu, dst, src);  in emit_alu_r()
401 			emit(ctx, mfhi, dst);  in emit_alu_r()
412 	emit(ctx, ll, MIPS_R_T9, off, dst);  in emit_atomic_r()
416 		emit(ctx, addu, MIPS_R_T8, MIPS_R_T9, src);  in emit_atomic_r()
420 		emit(ctx, and, MIPS_R_T8, MIPS_R_T9, src);  in emit_atomic_r()
424 		emit(ctx, or, MIPS_R_T8, MIPS_R_T9, src);  in emit_atomic_r()
428 		emit(ctx, xor, MIPS_R_T8, MIPS_R_T9, src);  in emit_atomic_r()
431 		emit(ctx, move, MIPS_R_T8, src);  in emit_atomic_r()
434 	emit(ctx, sc, MIPS_R_T8, off, dst);  in emit_atomic_r()
435 	emit(ctx, LLSC_beqz, MIPS_R_T8, -16 - LLSC_offset);  in emit_atomic_r()
436 	emit(ctx, nop); /* Delay slot */  in emit_atomic_r()
439 		emit(ctx, move, src, MIPS_R_T9);  in emit_atomic_r()
448 	emit(ctx, ll, MIPS_R_T9, off, dst);  in emit_cmpxchg_r()
449 	emit(ctx, bne, MIPS_R_T9, res, 12);  in emit_cmpxchg_r()
450 	emit(ctx, move, MIPS_R_T8, src);     /* Delay slot */  in emit_cmpxchg_r()
451 	emit(ctx, sc, MIPS_R_T8, off, dst);  in emit_cmpxchg_r()
452 	emit(ctx, LLSC_beqz, MIPS_R_T8, -20 - LLSC_offset);  in emit_cmpxchg_r()
453 	emit(ctx, move, res, MIPS_R_T9);     /* Delay slot */  in emit_cmpxchg_r()
467 			emit(ctx, wsbh, dst, dst);  in emit_bswap_r()
468 			emit(ctx, rotr, dst, dst, 16);  in emit_bswap_r()
470 			emit(ctx, sll, tmp, dst, 16);    /* tmp  = dst << 16 */  in emit_bswap_r()
471 			emit(ctx, srl, dst, dst, 16);    /* dst = dst >> 16  */  in emit_bswap_r()
472 			emit(ctx, or, dst, dst, tmp);    /* dst = dst | tmp  */  in emit_bswap_r()
474 			emit(ctx, lui, msk, 0xff);       /* msk = 0x00ff0000 */  in emit_bswap_r()
475 			emit(ctx, ori, msk, msk, 0xff);  /* msk = msk | 0xff */  in emit_bswap_r()
477 			emit(ctx, and, tmp, dst, msk);   /* tmp = dst & msk  */  in emit_bswap_r()
478 			emit(ctx, sll, tmp, tmp, 8);     /* tmp = tmp << 8   */  in emit_bswap_r()
479 			emit(ctx, srl, dst, dst, 8);     /* dst = dst >> 8   */  in emit_bswap_r()
480 			emit(ctx, and, dst, dst, msk);   /* dst = dst & msk  */  in emit_bswap_r()
481 			emit(ctx, or, dst, dst, tmp);    /* reg = dst | tmp  */  in emit_bswap_r()
487 			emit(ctx, wsbh, dst, dst);  in emit_bswap_r()
488 			emit(ctx, andi, dst, dst, 0xffff);  in emit_bswap_r()
490 			emit(ctx, andi, tmp, dst, 0xff00); /* t = d & 0xff00 */  in emit_bswap_r()
491 			emit(ctx, srl, tmp, tmp, 8);       /* t = t >> 8     */  in emit_bswap_r()
492 			emit(ctx, andi, dst, dst, 0x00ff); /* d = d & 0x00ff */  in emit_bswap_r()
493 			emit(ctx, sll, dst, dst, 8);       /* d = d << 8     */  in emit_bswap_r()
494 			emit(ctx, or,  dst, dst, tmp);     /* d = d | t      */  in emit_bswap_r()
679 	/* Emit conditional branch delay slot */  in finish_jmp()
681 		emit(ctx, nop);  in finish_jmp()
683 	 * Emit an absolute long jump with delay slot,  in finish_jmp()
691 		emit(ctx, j, target);  in finish_jmp()
692 		emit(ctx, nop);  in finish_jmp()
706 		emit(ctx, andi, MIPS_R_T9, dst, (u16)imm);  in emit_jmp_i()
707 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_i()
711 		emit(ctx, andi, MIPS_R_T9, dst, (u16)imm);  in emit_jmp_i()
712 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_i()
716 		emit(ctx, sltiu, MIPS_R_T9, dst, imm + 1);  in emit_jmp_i()
717 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_i()
721 		emit(ctx, sltiu, MIPS_R_T9, dst, imm);  in emit_jmp_i()
722 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_i()
726 		emit(ctx, sltiu, MIPS_R_T9, dst, imm);  in emit_jmp_i()
727 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_i()
731 		emit(ctx, sltiu, MIPS_R_T9, dst, imm + 1);  in emit_jmp_i()
732 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_i()
736 		emit(ctx, slti, MIPS_R_T9, dst, imm + 1);  in emit_jmp_i()
737 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_i()
741 		emit(ctx, slti, MIPS_R_T9, dst, imm);  in emit_jmp_i()
742 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_i()
746 		emit(ctx, slti, MIPS_R_T9, dst, imm);  in emit_jmp_i()
747 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_i()
751 		emit(ctx, slti, MIPS_R_T9, dst, imm + 1);  in emit_jmp_i()
752 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_i()
766 		emit(ctx, beq, dst, src, off);  in emit_jmp_r()
770 		emit(ctx, bne, dst, src, off);  in emit_jmp_r()
774 		emit(ctx, and, MIPS_R_T9, dst, src);  in emit_jmp_r()
775 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_r()
779 		emit(ctx, and, MIPS_R_T9, dst, src);  in emit_jmp_r()
780 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_r()
784 		emit(ctx, sltu, MIPS_R_T9, src, dst);  in emit_jmp_r()
785 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_r()
789 		emit(ctx, sltu, MIPS_R_T9, dst, src);  in emit_jmp_r()
790 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_r()
794 		emit(ctx, sltu, MIPS_R_T9, dst, src);  in emit_jmp_r()
795 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_r()
799 		emit(ctx, sltu, MIPS_R_T9, src, dst);  in emit_jmp_r()
800 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_r()
804 		emit(ctx, slt, MIPS_R_T9, src, dst);  in emit_jmp_r()
805 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_r()
809 		emit(ctx, slt, MIPS_R_T9, dst, src);  in emit_jmp_r()
810 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_r()
814 		emit(ctx, slt, MIPS_R_T9, dst, src);  in emit_jmp_r()
815 		emit(ctx, bnez, MIPS_R_T9, off);  in emit_jmp_r()
819 		emit(ctx, slt, MIPS_R_T9, src, dst);  in emit_jmp_r()
820 		emit(ctx, beqz, MIPS_R_T9, off);  in emit_jmp_r()
832 	emit(ctx, j, target);  in emit_ja()
833 	emit(ctx, nop);  in emit_ja()
844 	emit(ctx, j, target);  in emit_exit()
845 	emit(ctx, nop);  in emit_exit()