1 /*
2 * Copyright (c) 2018, Red Hat, Inc. and/or its affiliates.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24 #ifndef CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP
25 #define CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP
26
27 #include "asm/macroAssembler.hpp"
28 #include "gc/shared/barrierSetAssembler.hpp"
29 #ifdef COMPILER1
30 #include "c1/c1_LIRAssembler.hpp"
31 #include "gc/shenandoah/c1/shenandoahBarrierSetC1.hpp"
32 #endif
33
34 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
35 private:
36
37 static address _shenandoah_wb;
38 static address _shenandoah_wb_C;
39
40 void satb_write_barrier_pre(MacroAssembler* masm,
41 Register obj,
42 Register pre_val,
43 Register thread,
44 Register tmp,
45 bool tosca_live,
46 bool expand_call);
47 void shenandoah_write_barrier_pre(MacroAssembler* masm,
48 Register obj,
49 Register pre_val,
50 Register thread,
51 Register tmp,
52 bool tosca_live,
53 bool expand_call);
54 void shenandoah_write_barrier_post(MacroAssembler* masm,
55 Register store_addr,
56 Register new_val,
57 Register thread,
58 Register tmp,
59 Register tmp2);
60
61 void read_barrier(MacroAssembler* masm, Register dst);
62 void read_barrier_impl(MacroAssembler* masm, Register dst);
63 void read_barrier_not_null(MacroAssembler* masm, Register dst);
64 void read_barrier_not_null_impl(MacroAssembler* masm, Register dst);
65 void write_barrier(MacroAssembler* masm, Register dst);
66 void write_barrier_impl(MacroAssembler* masm, Register dst);
67 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
68 void asm_acmp_barrier(MacroAssembler* masm, Register op1, Register op2);
69
70 address generate_shenandoah_wb(StubCodeGenerator* cgen, bool c_abi, bool do_cset_test);
71
72 public:
73 static address shenandoah_wb();
74 static address shenandoah_wb_C();
75
76 #ifdef COMPILER1
77 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
78 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
79 #endif
80
81 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
82 Register addr, Register count, RegSet saved_regs);
83 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
84 Register start, Register end, Register tmp, RegSet saved_regs);
85 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
86 Register dst, Address src, Register tmp1, Register tmp_thread);
87 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
88 Address dst, Register val, Register tmp1, Register tmp2);
89 virtual void obj_equals(MacroAssembler* masm, DecoratorSet decorators, Register src1, Register src2);
90 virtual void resolve_for_read(MacroAssembler* masm, DecoratorSet decorators, Register obj);
91 virtual void resolve_for_write(MacroAssembler* masm, DecoratorSet decorators, Register obj);
92
93 virtual void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val,
94 bool acquire, bool release, bool weak, bool encode,
95 Register tmp1, Register tmp2, Register tmp3,
96 Register result);
97
98 virtual void barrier_stubs_init();
99 };
100
101 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP