1 /*
2 * Copyright (c) 2018, 2020, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2020, 2021, Huawei Technologies Co., Ltd. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_RISCV_GC_SHARED_BARRIERSETASSEMBLER_RISCV_HPP
27 #define CPU_RISCV_GC_SHARED_BARRIERSETASSEMBLER_RISCV_HPP
28
29 #include "asm/macroAssembler.hpp"
30 #include "gc/shared/barrierSet.hpp"
31 #include "gc/shared/barrierSetNMethod.hpp"
32 #include "memory/allocation.hpp"
33 #include "oops/access.hpp"
34
35 class BarrierSetAssembler: public CHeapObj<mtGC> {
36 private:
37 void incr_allocated_bytes(MacroAssembler* masm,
38 Register var_size_in_bytes, int con_size_in_bytes,
39 Register t1 = noreg);
40
41 public:
42 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
43 Register src, Register dst, Register count, RegSet saved_regs) {}
44 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
45 Register start, Register end, Register tmp, RegSet saved_regs) {}
46 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
47 Register dst, Address src, Register tmp1, Register tmp_thread);
48 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
49 Address dst, Register val, Register tmp1, Register tmp2);
50
51 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
52 Register obj, Register tmp, Label& slowpath);
53
54 virtual void tlab_allocate(MacroAssembler* masm,
55 Register obj, // result: pointer to object after successful allocation
56 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
57 int con_size_in_bytes, // object size in bytes if known at compile time
58 Register tmp1, // temp register
59 Register tmp2, // temp register
60 Label& slow_case, // continuation point if fast allocation fails
61 bool is_far = false
62 );
63
64 void eden_allocate(MacroAssembler* masm,
65 Register obj, // result: pointer to object after successful allocation
66 Register var_size_in_bytes, // object size in bytes if unknown at compile time; invalid otherwise
67 int con_size_in_bytes, // object size in bytes if known at compile time
68 Register tmp1, // temp register
69 Label& slow_case, // continuation point if fast allocation fails
70 bool is_far = false
71 );
72 virtual void barrier_stubs_init() {}
73
74 virtual void nmethod_entry_barrier(MacroAssembler* masm);
75 virtual void c2i_entry_barrier(MacroAssembler* masm);
76 virtual ~BarrierSetAssembler() {}
77 };
78
79 #endif // CPU_RISCV_GC_SHARED_BARRIERSETASSEMBLER_RISCV_HPP