1 /*
2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
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 class LIR_Assembler;
31 class ShenandoahPreBarrierStub;
32 class ShenandoahLoadReferenceBarrierStub;
33 class StubAssembler;
34 class StubCodeGenerator;
35 #endif
36
37 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
38 private:
39
40 static address _shenandoah_lrb;
41
42 void satb_write_barrier_pre(MacroAssembler* masm,
43 Register obj,
44 Register pre_val,
45 Register thread,
46 Register tmp,
47 bool tosca_live,
48 bool expand_call);
49 void shenandoah_write_barrier_pre(MacroAssembler* masm,
50 Register obj,
51 Register pre_val,
52 Register thread,
53 Register tmp,
54 bool tosca_live,
55 bool expand_call);
56
57 void resolve_forward_pointer(MacroAssembler* masm, Register dst);
58 void resolve_forward_pointer_not_null(MacroAssembler* masm, Register dst);
59 void load_reference_barrier(MacroAssembler* masm, Register dst, Register tmp);
60 void load_reference_barrier_not_null(MacroAssembler* masm, Register dst, Register tmp);
61
62 address generate_shenandoah_lrb(StubCodeGenerator* cgen);
63
64 public:
65 static address shenandoah_lrb();
66
67 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
68
69 #ifdef COMPILER1
70 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
71 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
72 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
73 #endif
74
75 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
76 Register addr, Register count, RegSet saved_regs);
77 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
78 Register start, Register count, Register tmp, RegSet saved_regs);
79 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
80 Register dst, Address src, Register tmp1, Register tmp_thread);
81 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
82 Address dst, Register val, Register tmp1, Register tmp2);
83 virtual void tlab_allocate(MacroAssembler* masm, Register obj,
84 Register var_size_in_bytes,
85 int con_size_in_bytes,
86 Register t1,
87 Register t2,
88 Label& slow_case);
89
90 void cmpxchg_oop(MacroAssembler* masm, Register addr, Register expected, Register new_val,
91 bool acquire, bool release, bool weak, bool is_cae, Register result);
92
93 virtual void barrier_stubs_init();
94 };
95
96 #endif // CPU_AARCH64_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_AARCH64_HPP