1/*
2 * Copyright (c) 2015 Advanced Micro Devices, Inc.
3 * All rights reserved.
4 *
5 * For use for simulation and test purposes only
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the copyright holder nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * Author: John Kalamatianos
34 */
35
36#ifndef __VECTOR_REGISTER_FILE_HH__
37#define __VECTOR_REGISTER_FILE_HH__
38
39#include <list>
40
41#include "base/statistics.hh"
| 1/*
2 * Copyright (c) 2015 Advanced Micro Devices, Inc.
3 * All rights reserved.
4 *
5 * For use for simulation and test purposes only
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the copyright holder nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 *
33 * Author: John Kalamatianos
34 */
35
36#ifndef __VECTOR_REGISTER_FILE_HH__
37#define __VECTOR_REGISTER_FILE_HH__
38
39#include <list>
40
41#include "base/statistics.hh"
|
42#include "base/types.hh"
43#include "debug/GPUVRF.hh"
44#include "gpu-compute/vector_register_state.hh"
45#include "sim/sim_object.hh"
46
47class ComputeUnit;
48class Shader;
49class SimplePoolManager;
50class Wavefront;
51
52struct VectorRegisterFileParams;
53
54enum class VrfAccessType : uint8_t
55{
56 READ = 0x01,
57 WRITE = 0x02,
58 RD_WR = READ | WRITE
59};
60
61// Vector Register File
62class VectorRegisterFile : public SimObject
63{
64 public:
65 VectorRegisterFile(const VectorRegisterFileParams *p);
66
67 void setParent(ComputeUnit *_computeUnit);
68
69 // Read a register
70 template<typename T>
71 T
72 read(int regIdx, int threadId=0)
73 {
74 T p0 = vgprState->read<T>(regIdx, threadId);
75 DPRINTF(GPUVRF, "reading vreg[%d][%d] = %u\n", regIdx, threadId, (uint64_t)p0);
76
77 return p0;
78 }
79
80 // Write a register
81 template<typename T>
82 void
83 write(int regIdx, T value, int threadId=0)
84 {
85 DPRINTF(GPUVRF, "writing vreg[%d][%d] = %u\n", regIdx, threadId, (uint64_t)value);
86 vgprState->write<T>(regIdx, value, threadId);
87 }
88
89 uint8_t regBusy(int idx, uint32_t operandSize) const;
90 uint8_t regNxtBusy(int idx, uint32_t operandSize) const;
91
92 int numRegs() const { return numRegsPerSimd; }
93
94 void markReg(int regIdx, uint32_t operandSize, uint8_t value);
95 void preMarkReg(int regIdx, uint32_t operandSize, uint8_t value);
96
97 virtual void exec(GPUDynInstPtr ii, Wavefront *w);
98
99 virtual int exec(uint64_t dynamic_id, Wavefront *w,
100 std::vector<uint32_t> ®Vec, uint32_t operandSize,
101 uint64_t timestamp);
102
103 bool operandsReady(Wavefront *w, GPUDynInstPtr ii) const;
104 virtual void updateEvents() { }
105 virtual void updateResources(Wavefront *w, GPUDynInstPtr ii);
106
107 virtual bool
108 isReadConflict(int memWfId, int exeWfId) const
109 {
110 return false;
111 }
112
113 virtual bool
114 isWriteConflict(int memWfId, int exeWfId) const
115 {
116 return false;
117 }
118
119 virtual bool vrfOperandAccessReady(uint64_t dynamic_id, Wavefront *w,
120 GPUDynInstPtr ii,
121 VrfAccessType accessType);
122
123 virtual bool vrfOperandAccessReady(Wavefront *w, GPUDynInstPtr ii,
124 VrfAccessType accessType);
125
126 SimplePoolManager *manager;
127
128 protected:
129 ComputeUnit* computeUnit;
130 int simdId;
131
132 // flag indicating if a register is busy
133 std::vector<uint8_t> busy;
134 // flag indicating if a register will be busy (by instructions
135 // in the SIMD pipeline)
136 std::vector<uint8_t> nxtBusy;
137
138 // numer of registers (bank size) per simd unit (bank)
139 int numRegsPerSimd;
140
141 // vector register state
142 VecRegisterState *vgprState;
143};
144
145#endif // __VECTOR_REGISTER_FILE_HH__
| 43#include "base/types.hh"
44#include "debug/GPUVRF.hh"
45#include "gpu-compute/vector_register_state.hh"
46#include "sim/sim_object.hh"
47
48class ComputeUnit;
49class Shader;
50class SimplePoolManager;
51class Wavefront;
52
53struct VectorRegisterFileParams;
54
55enum class VrfAccessType : uint8_t
56{
57 READ = 0x01,
58 WRITE = 0x02,
59 RD_WR = READ | WRITE
60};
61
62// Vector Register File
63class VectorRegisterFile : public SimObject
64{
65 public:
66 VectorRegisterFile(const VectorRegisterFileParams *p);
67
68 void setParent(ComputeUnit *_computeUnit);
69
70 // Read a register
71 template<typename T>
72 T
73 read(int regIdx, int threadId=0)
74 {
75 T p0 = vgprState->read<T>(regIdx, threadId);
76 DPRINTF(GPUVRF, "reading vreg[%d][%d] = %u\n", regIdx, threadId, (uint64_t)p0);
77
78 return p0;
79 }
80
81 // Write a register
82 template<typename T>
83 void
84 write(int regIdx, T value, int threadId=0)
85 {
86 DPRINTF(GPUVRF, "writing vreg[%d][%d] = %u\n", regIdx, threadId, (uint64_t)value);
87 vgprState->write<T>(regIdx, value, threadId);
88 }
89
90 uint8_t regBusy(int idx, uint32_t operandSize) const;
91 uint8_t regNxtBusy(int idx, uint32_t operandSize) const;
92
93 int numRegs() const { return numRegsPerSimd; }
94
95 void markReg(int regIdx, uint32_t operandSize, uint8_t value);
96 void preMarkReg(int regIdx, uint32_t operandSize, uint8_t value);
97
98 virtual void exec(GPUDynInstPtr ii, Wavefront *w);
99
100 virtual int exec(uint64_t dynamic_id, Wavefront *w,
101 std::vector<uint32_t> ®Vec, uint32_t operandSize,
102 uint64_t timestamp);
103
104 bool operandsReady(Wavefront *w, GPUDynInstPtr ii) const;
105 virtual void updateEvents() { }
106 virtual void updateResources(Wavefront *w, GPUDynInstPtr ii);
107
108 virtual bool
109 isReadConflict(int memWfId, int exeWfId) const
110 {
111 return false;
112 }
113
114 virtual bool
115 isWriteConflict(int memWfId, int exeWfId) const
116 {
117 return false;
118 }
119
120 virtual bool vrfOperandAccessReady(uint64_t dynamic_id, Wavefront *w,
121 GPUDynInstPtr ii,
122 VrfAccessType accessType);
123
124 virtual bool vrfOperandAccessReady(Wavefront *w, GPUDynInstPtr ii,
125 VrfAccessType accessType);
126
127 SimplePoolManager *manager;
128
129 protected:
130 ComputeUnit* computeUnit;
131 int simdId;
132
133 // flag indicating if a register is busy
134 std::vector<uint8_t> busy;
135 // flag indicating if a register will be busy (by instructions
136 // in the SIMD pipeline)
137 std::vector<uint8_t> nxtBusy;
138
139 // numer of registers (bank size) per simd unit (bank)
140 int numRegsPerSimd;
141
142 // vector register state
143 VecRegisterState *vgprState;
144};
145
146#endif // __VECTOR_REGISTER_FILE_HH__
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