packet.cc (11287:0d5bbeaeb8ca) packet.cc (11600:a38c3f9c82d1)
1/*
1/*
2 * Copyright (c) 2011-2015 ARM Limited
2 * Copyright (c) 2011-2016 ARM Limited
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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60
61// The one downside to bitsets is that static initializers can get ugly.
62#define SET1(a1) (1 << (a1))
63#define SET2(a1, a2) (SET1(a1) | SET1(a2))
64#define SET3(a1, a2, a3) (SET2(a1, a2) | SET1(a3))
65#define SET4(a1, a2, a3, a4) (SET3(a1, a2, a3) | SET1(a4))
66#define SET5(a1, a2, a3, a4, a5) (SET4(a1, a2, a3, a4) | SET1(a5))
67#define SET6(a1, a2, a3, a4, a5, a6) (SET5(a1, a2, a3, a4, a5) | SET1(a6))
3 * All rights reserved
4 *
5 * The license below extends only to copyright in the software and shall
6 * not be construed as granting a license to any other intellectual
7 * property including but not limited to intellectual property relating
8 * to a hardware implementation of the functionality of the software
9 * licensed hereunder. You may use the software subject to the license
10 * terms below provided that you ensure that this notice is replicated

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60
61// The one downside to bitsets is that static initializers can get ugly.
62#define SET1(a1) (1 << (a1))
63#define SET2(a1, a2) (SET1(a1) | SET1(a2))
64#define SET3(a1, a2, a3) (SET2(a1, a2) | SET1(a3))
65#define SET4(a1, a2, a3, a4) (SET3(a1, a2, a3) | SET1(a4))
66#define SET5(a1, a2, a3, a4, a5) (SET4(a1, a2, a3, a4) | SET1(a5))
67#define SET6(a1, a2, a3, a4, a5, a6) (SET5(a1, a2, a3, a4, a5) | SET1(a6))
68#define SET7(a1, a2, a3, a4, a5, a6, a7) (SET6(a1, a2, a3, a4, a5, a6) | \
69 SET1(a7))
68
69const MemCmd::CommandInfo
70MemCmd::commandInfo[] =
71{
72 /* InvalidCmd */
73 { 0, InvalidCmd, "InvalidCmd" },
74 /* ReadReq - Read issued by a non-caching agent such as a CPU or
75 * device, with no restrictions on alignment. */

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80 { SET4(IsRead, IsResponse, HasData, IsInvalidate),
81 InvalidCmd, "ReadRespWithInvalidate" },
82 /* WriteReq */
83 { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData),
84 WriteResp, "WriteReq" },
85 /* WriteResp */
86 { SET2(IsWrite, IsResponse), InvalidCmd, "WriteResp" },
87 /* WritebackDirty */
70
71const MemCmd::CommandInfo
72MemCmd::commandInfo[] =
73{
74 /* InvalidCmd */
75 { 0, InvalidCmd, "InvalidCmd" },
76 /* ReadReq - Read issued by a non-caching agent such as a CPU or
77 * device, with no restrictions on alignment. */

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82 { SET4(IsRead, IsResponse, HasData, IsInvalidate),
83 InvalidCmd, "ReadRespWithInvalidate" },
84 /* WriteReq */
85 { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData),
86 WriteResp, "WriteReq" },
87 /* WriteResp */
88 { SET2(IsWrite, IsResponse), InvalidCmd, "WriteResp" },
89 /* WritebackDirty */
88 { SET4(IsWrite, IsRequest, IsEviction, HasData),
90 { SET5(IsWrite, IsRequest, IsEviction, HasData, FromCache),
89 InvalidCmd, "WritebackDirty" },
90 /* WritebackClean - This allows the upstream cache to writeback a
91 * line to the downstream cache without it being considered
92 * dirty. */
91 InvalidCmd, "WritebackDirty" },
92 /* WritebackClean - This allows the upstream cache to writeback a
93 * line to the downstream cache without it being considered
94 * dirty. */
93 { SET4(IsWrite, IsRequest, IsEviction, HasData),
95 { SET5(IsWrite, IsRequest, IsEviction, HasData, FromCache),
94 InvalidCmd, "WritebackClean" },
95 /* CleanEvict */
96 InvalidCmd, "WritebackClean" },
97 /* CleanEvict */
96 { SET2(IsRequest, IsEviction), InvalidCmd, "CleanEvict" },
98 { SET3(IsRequest, IsEviction, FromCache), InvalidCmd, "CleanEvict" },
97 /* SoftPFReq */
98 { SET4(IsRead, IsRequest, IsSWPrefetch, NeedsResponse),
99 SoftPFResp, "SoftPFReq" },
100 /* HardPFReq */
99 /* SoftPFReq */
100 { SET4(IsRead, IsRequest, IsSWPrefetch, NeedsResponse),
101 SoftPFResp, "SoftPFReq" },
102 /* HardPFReq */
101 { SET4(IsRead, IsRequest, IsHWPrefetch, NeedsResponse),
103 { SET5(IsRead, IsRequest, IsHWPrefetch, NeedsResponse, FromCache),
102 HardPFResp, "HardPFReq" },
103 /* SoftPFResp */
104 { SET4(IsRead, IsResponse, IsSWPrefetch, HasData),
105 InvalidCmd, "SoftPFResp" },
106 /* HardPFResp */
107 { SET4(IsRead, IsResponse, IsHWPrefetch, HasData),
108 InvalidCmd, "HardPFResp" },
109 /* WriteLineReq */
110 { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData),
111 WriteResp, "WriteLineReq" },
112 /* UpgradeReq */
104 HardPFResp, "HardPFReq" },
105 /* SoftPFResp */
106 { SET4(IsRead, IsResponse, IsSWPrefetch, HasData),
107 InvalidCmd, "SoftPFResp" },
108 /* HardPFResp */
109 { SET4(IsRead, IsResponse, IsHWPrefetch, HasData),
110 InvalidCmd, "HardPFResp" },
111 /* WriteLineReq */
112 { SET5(IsWrite, NeedsWritable, IsRequest, NeedsResponse, HasData),
113 WriteResp, "WriteLineReq" },
114 /* UpgradeReq */
113 { SET5(IsInvalidate, NeedsWritable, IsUpgrade, IsRequest, NeedsResponse),
115 { SET6(IsInvalidate, NeedsWritable, IsUpgrade, IsRequest, NeedsResponse,
116 FromCache),
114 UpgradeResp, "UpgradeReq" },
115 /* SCUpgradeReq: response could be UpgradeResp or UpgradeFailResp */
117 UpgradeResp, "UpgradeReq" },
118 /* SCUpgradeReq: response could be UpgradeResp or UpgradeFailResp */
116 { SET6(IsInvalidate, NeedsWritable, IsUpgrade, IsLlsc,
117 IsRequest, NeedsResponse),
119 { SET7(IsInvalidate, NeedsWritable, IsUpgrade, IsLlsc,
120 IsRequest, NeedsResponse, FromCache),
118 UpgradeResp, "SCUpgradeReq" },
119 /* UpgradeResp */
120 { SET2(IsUpgrade, IsResponse),
121 InvalidCmd, "UpgradeResp" },
122 /* SCUpgradeFailReq: generates UpgradeFailResp but still gets the data */
121 UpgradeResp, "SCUpgradeReq" },
122 /* UpgradeResp */
123 { SET2(IsUpgrade, IsResponse),
124 InvalidCmd, "UpgradeResp" },
125 /* SCUpgradeFailReq: generates UpgradeFailResp but still gets the data */
123 { SET6(IsRead, NeedsWritable, IsInvalidate,
124 IsLlsc, IsRequest, NeedsResponse),
126 { SET7(IsRead, NeedsWritable, IsInvalidate,
127 IsLlsc, IsRequest, NeedsResponse, FromCache),
125 UpgradeFailResp, "SCUpgradeFailReq" },
126 /* UpgradeFailResp - Behaves like a ReadExReq, but notifies an SC
127 * that it has failed, acquires line as Dirty*/
128 { SET3(IsRead, IsResponse, HasData),
129 InvalidCmd, "UpgradeFailResp" },
130 /* ReadExReq - Read issues by a cache, always cache-line aligned,
131 * and the response is guaranteed to be writeable (exclusive or
132 * even modified) */
128 UpgradeFailResp, "SCUpgradeFailReq" },
129 /* UpgradeFailResp - Behaves like a ReadExReq, but notifies an SC
130 * that it has failed, acquires line as Dirty*/
131 { SET3(IsRead, IsResponse, HasData),
132 InvalidCmd, "UpgradeFailResp" },
133 /* ReadExReq - Read issues by a cache, always cache-line aligned,
134 * and the response is guaranteed to be writeable (exclusive or
135 * even modified) */
133 { SET5(IsRead, NeedsWritable, IsInvalidate, IsRequest, NeedsResponse),
136 { SET6(IsRead, NeedsWritable, IsInvalidate, IsRequest, NeedsResponse,
137 FromCache),
134 ReadExResp, "ReadExReq" },
135 /* ReadExResp - Response matching a read exclusive, as we check
136 * the need for exclusive also on responses */
137 { SET3(IsRead, IsResponse, HasData),
138 InvalidCmd, "ReadExResp" },
139 /* ReadCleanReq - Read issued by a cache, always cache-line
140 * aligned, and the response is guaranteed to not contain dirty data
141 * (exclusive or shared).*/
138 ReadExResp, "ReadExReq" },
139 /* ReadExResp - Response matching a read exclusive, as we check
140 * the need for exclusive also on responses */
141 { SET3(IsRead, IsResponse, HasData),
142 InvalidCmd, "ReadExResp" },
143 /* ReadCleanReq - Read issued by a cache, always cache-line
144 * aligned, and the response is guaranteed to not contain dirty data
145 * (exclusive or shared).*/
142 { SET3(IsRead, IsRequest, NeedsResponse), ReadResp, "ReadCleanReq" },
146 { SET4(IsRead, IsRequest, NeedsResponse, FromCache),
147 ReadResp, "ReadCleanReq" },
143 /* ReadSharedReq - Read issued by a cache, always cache-line
144 * aligned, response is shared, possibly exclusive, owned or even
145 * modified. */
148 /* ReadSharedReq - Read issued by a cache, always cache-line
149 * aligned, response is shared, possibly exclusive, owned or even
150 * modified. */
146 { SET3(IsRead, IsRequest, NeedsResponse), ReadResp, "ReadSharedReq" },
151 { SET4(IsRead, IsRequest, NeedsResponse, FromCache),
152 ReadResp, "ReadSharedReq" },
147 /* LoadLockedReq: note that we use plain ReadResp as response, so that
148 * we can also use ReadRespWithInvalidate when needed */
149 { SET4(IsRead, IsLlsc, IsRequest, NeedsResponse),
150 ReadResp, "LoadLockedReq" },
151 /* StoreCondReq */
152 { SET6(IsWrite, NeedsWritable, IsLlsc,
153 IsRequest, NeedsResponse, HasData),
154 StoreCondResp, "StoreCondReq" },

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182 { SET3(IsRead, IsResponse, IsError), InvalidCmd, "FunctionalReadError" },
183 /* FunctionalWriteError */
184 { SET3(IsWrite, IsResponse, IsError), InvalidCmd, "FunctionalWriteError" },
185 /* PrintReq */
186 { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" },
187 /* Flush Request */
188 { SET3(IsRequest, IsFlush, NeedsWritable), InvalidCmd, "FlushReq" },
189 /* Invalidation Request */
153 /* LoadLockedReq: note that we use plain ReadResp as response, so that
154 * we can also use ReadRespWithInvalidate when needed */
155 { SET4(IsRead, IsLlsc, IsRequest, NeedsResponse),
156 ReadResp, "LoadLockedReq" },
157 /* StoreCondReq */
158 { SET6(IsWrite, NeedsWritable, IsLlsc,
159 IsRequest, NeedsResponse, HasData),
160 StoreCondResp, "StoreCondReq" },

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188 { SET3(IsRead, IsResponse, IsError), InvalidCmd, "FunctionalReadError" },
189 /* FunctionalWriteError */
190 { SET3(IsWrite, IsResponse, IsError), InvalidCmd, "FunctionalWriteError" },
191 /* PrintReq */
192 { SET2(IsRequest, IsPrint), InvalidCmd, "PrintReq" },
193 /* Flush Request */
194 { SET3(IsRequest, IsFlush, NeedsWritable), InvalidCmd, "FlushReq" },
195 /* Invalidation Request */
190 { SET4(IsInvalidate, IsRequest, NeedsWritable, NeedsResponse),
196 { SET5(IsInvalidate, IsRequest, NeedsWritable, NeedsResponse, FromCache),
191 InvalidateResp, "InvalidateReq" },
192 /* Invalidation Response */
193 { SET2(IsInvalidate, IsResponse),
194 InvalidCmd, "InvalidateResp" }
195};
196
197bool
198Packet::checkFunctional(Printable *obj, Addr addr, bool is_secure, int size,

--- 213 unchanged lines hidden --- 		197 InvalidateResp, "InvalidateReq" },
198 /* Invalidation Response */
199 { SET2(IsInvalidate, IsResponse),
200 InvalidCmd, "InvalidateResp" }
201};
202
203bool
204Packet::checkFunctional(Printable *obj, Addr addr, bool is_secure, int size,

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