1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
/*
* Copyright (c) 2009 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __MEM_RUBY_LIBRUBY_HH__
#define __MEM_RUBY_LIBRUBY_HH__
#include <ostream>
#include "base/types.hh"
#include "mem/packet.hh"
typedef void* RubyPortHandle;
enum RubyRequestType {
RubyRequestType_NULL,
RubyRequestType_IFETCH,
RubyRequestType_LD,
RubyRequestType_ST,
RubyRequestType_Load_Linked,
RubyRequestType_Store_Conditional,
RubyRequestType_RMW_Read,
RubyRequestType_RMW_Write,
RubyRequestType_Locked_RMW_Read,
RubyRequestType_Locked_RMW_Write,
RubyRequestType_NUM
};
enum RubyAccessMode {
RubyAccessMode_User,
RubyAccessMode_Supervisor,
RubyAccessMode_Device
};
struct RubyRequest
{
uint64_t paddr;
uint8_t* data;
int len;
uint64_t pc;
RubyRequestType type;
RubyAccessMode access_mode;
PacketPtr pkt;
unsigned proc_id;
RubyRequest() {}
RubyRequest(uint64_t _paddr,
uint8_t* _data,
int _len,
uint64_t _pc,
RubyRequestType _type,
RubyAccessMode _access_mode,
PacketPtr _pkt,
unsigned _proc_id = 100)
: paddr(_paddr),
data(_data),
len(_len),
pc(_pc),
type(_type),
access_mode(_access_mode),
pkt(_pkt),
proc_id(_proc_id)
{}
};
std::ostream& operator<<(std::ostream& out, const RubyRequest& obj);
std::ostream& operator<<(std::ostream& out, const RubyRequestType& obj);
/**
* Initialize the system. cfg_file is a Ruby-lang configuration script
*/
void libruby_init(const char* cfg_file);
/**
* Tear down a configured system. Must be invoked after a call to
* libruby_init.
*/
void libruby_destroy();
/**
* Print the last error encountered by ruby. Currently unimplemented.
*/
const char* libruby_last_error();
/**
* Retrieve a handle to a RubyPort object, identified by name in the
* configuration. You also pass in the callback function you want
* this port to use when a request completes. Only one handle to a
* port is allowed at a time.
*/
RubyPortHandle libruby_get_port(const char* name,
void (*hit_callback)(int64_t access_id));
/**
* Retrieve a handle to a RubyPort object, identified by name in the
* configuration.
*/
RubyPortHandle libruby_get_port_by_name(const char* name);
/**
* issue_request returns a unique access_id to identify the ruby
* transaction. This access_id is later returned to the caller via
* hit_callback (passed to libruby_get_port)
*/
int64_t libruby_issue_request(RubyPortHandle p, struct RubyRequest request);
/**
* writes data directly into Ruby's data array. Note that this
* ignores caches, and should be considered incoherent after
* simulation starts.
*/
void libruby_write_ram(uint64_t paddr, uint8_t *data, int len);
/**
* reads data directory from Ruby's data array. Note that this
* ignores caches, and should be considered incoherent after
* simulation starts
*/
void libruby_read_ram(uint64_t paddr, uint8_t *data, int len);
/**
* tick the system n cycles. Eventually, will return the number of
* cycles until the next event, but for now it always returns 0
*/
int libruby_tick(int n);
/**
* self explainitory
*/
void libruby_print_config(std::ostream &out);
/**
* self explainitory
*/
void libruby_print_stats(std::ostream &out);
/**
* does not return until done
*/
void libruby_playback_trace(char *trace_filename);
/*
* enables the tracer and opens the trace file
*/
void libruby_start_tracing(char *record_filename);
/*
* closes the trace file
*/
void libruby_stop_tracing();
/**
* get time
*/
uint64_t libruby_get_time();
#endif // __MEM_RUBY_LIBRUBY_HH__
|
