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_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
  25 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_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 
  48   void shenandoah_write_barrier_pre(MacroAssembler* masm,
  49                                     Register obj,
  50                                     Register pre_val,
  51                                     Register thread,
  52                                     Register tmp,
  53                                     bool tosca_live,
  54                                     bool expand_call);
  55   void shenandoah_write_barrier_post(MacroAssembler* masm,
  56                                      Register store_addr,
  57                                      Register new_val,
  58                                      Register thread,
  59                                      Register tmp,
  60                                      Register tmp2);
  61 
  62   void read_barrier(MacroAssembler* masm, Register dst);
  63   void read_barrier_impl(MacroAssembler* masm, Register dst);
  64 
  65   void read_barrier_not_null(MacroAssembler* masm, Register dst);
  66   void read_barrier_not_null_impl(MacroAssembler* masm, Register dst);
  67 
  68   void write_barrier(MacroAssembler* masm, Register dst);
  69   void write_barrier_impl(MacroAssembler* masm, Register dst);
  70 
  71   void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
  72   void storeval_barrier_impl(MacroAssembler* masm, Register dst, Register tmp);
  73 
  74   address generate_shenandoah_wb(StubCodeGenerator* cgen, bool c_abi, bool do_cset_test);
  75 
  76 public:
  77   static address shenandoah_wb();
  78   static address shenandoah_wb_C();
  79 
  80 
  81 #ifdef COMPILER1
  82   void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
  83   void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
  84 #endif
  85 
  86   virtual void cmpxchg_oop(MacroAssembler* masm, DecoratorSet decorators,
  87                            Register res, Address addr, Register oldval, Register newval,
  88                            bool exchange, bool encode, Register tmp1, Register tmp2);
  89   virtual void xchg_oop(MacroAssembler* masm, DecoratorSet decorators,
  90                         Register obj, Address addr, Register tmp);
  91 
  92   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  93                                   Register src, Register dst, Register count);
  94   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  95                                   Register src, Register dst, Register count);
  96   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  97                        Register dst, Address src, Register tmp1, Register tmp_thread);
  98   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  99                         Address dst, Register val, Register tmp1, Register tmp2);
 100 
 101   virtual void obj_equals(MacroAssembler* masm, DecoratorSet decorators, Register src1, Register src2);
 102   virtual void obj_equals_addr(MacroAssembler* masm, DecoratorSet decorators, Register src1, Address src2);
 103 
 104   virtual void resolve_for_read(MacroAssembler* masm, DecoratorSet decorators, Register obj);
 105   virtual void resolve_for_write(MacroAssembler* masm, DecoratorSet decorators, Register obj);
 106 
 107   virtual void barrier_stubs_init();
 108 
 109 };
 110 
 111 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP