packet.hh (12347:c4bb52d1aba4) packet.hh (12349:47f454120200)
1/*
2 * Copyright (c) 2012-2017 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

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37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Ron Dreslinski
42 * Steve Reinhardt
43 * Ali Saidi
44 * Andreas Hansson
1/*
2 * Copyright (c) 2012-2017 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

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37 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
38 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
39 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
40 *
41 * Authors: Ron Dreslinski
42 * Steve Reinhardt
43 * Ali Saidi
44 * Andreas Hansson
45 * Nikos Nikoleris
45 */
46
47/**
48 * @file
49 * Declaration of the Packet class.
50 */
51
52#ifndef __MEM_PACKET_HH__

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254 public:
255 typedef uint32_t FlagsType;
256 typedef ::Flags<FlagsType> Flags;
257
258 private:
259
260 enum : FlagsType {
261 // Flags to transfer across when copying a packet
46 */
47
48/**
49 * @file
50 * Declaration of the Packet class.
51 */
52
53#ifndef __MEM_PACKET_HH__

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255 public:
256 typedef uint32_t FlagsType;
257 typedef ::Flags<FlagsType> Flags;
258
259 private:
260
261 enum : FlagsType {
262 // Flags to transfer across when copying a packet
262 COPY_FLAGS = 0x0000001F,
263 COPY_FLAGS = 0x0000003F,
263
264 // Does this packet have sharers (which means it should not be
265 // considered writable) or not. See setHasSharers below.
266 HAS_SHARERS = 0x00000001,
267
268 // Special control flags
269 /// Special timing-mode atomic snoop for multi-level coherence.
270 EXPRESS_SNOOP = 0x00000002,

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277 // Snoop co-ordination flag to indicate that a cache is
278 // responding to a snoop. See setCacheResponding below.
279 CACHE_RESPONDING = 0x00000008,
280
281 // The writeback/writeclean should be propagated further
282 // downstream by the receiver
283 WRITE_THROUGH = 0x00000010,
284
264
265 // Does this packet have sharers (which means it should not be
266 // considered writable) or not. See setHasSharers below.
267 HAS_SHARERS = 0x00000001,
268
269 // Special control flags
270 /// Special timing-mode atomic snoop for multi-level coherence.
271 EXPRESS_SNOOP = 0x00000002,

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278 // Snoop co-ordination flag to indicate that a cache is
279 // responding to a snoop. See setCacheResponding below.
280 CACHE_RESPONDING = 0x00000008,
281
282 // The writeback/writeclean should be propagated further
283 // downstream by the receiver
284 WRITE_THROUGH = 0x00000010,
285
286 // Response co-ordination flag for cache maintenance
287 // operations
288 SATISFIED = 0x00000020,
289
285 /// Are the 'addr' and 'size' fields valid?
286 VALID_ADDR = 0x00000100,
287 VALID_SIZE = 0x00000200,
288
289 /// Is the data pointer set to a value that shouldn't be freed
290 /// when the packet is destroyed?
291 STATIC_DATA = 0x00001000,
292 /// The data pointer points to a value that should be freed when

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638 {
639 assert(cmd.isWrite() &&
640 (cmd.isEviction() || cmd == MemCmd::WriteClean));
641 flags.set(WRITE_THROUGH);
642 }
643 void clearWriteThrough() { flags.clear(WRITE_THROUGH); }
644 bool writeThrough() const { return flags.isSet(WRITE_THROUGH); }
645
290 /// Are the 'addr' and 'size' fields valid?
291 VALID_ADDR = 0x00000100,
292 VALID_SIZE = 0x00000200,
293
294 /// Is the data pointer set to a value that shouldn't be freed
295 /// when the packet is destroyed?
296 STATIC_DATA = 0x00001000,
297 /// The data pointer points to a value that should be freed when

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643 {
644 assert(cmd.isWrite() &&
645 (cmd.isEviction() || cmd == MemCmd::WriteClean));
646 flags.set(WRITE_THROUGH);
647 }
648 void clearWriteThrough() { flags.clear(WRITE_THROUGH); }
649 bool writeThrough() const { return flags.isSet(WRITE_THROUGH); }
650
651 /**
652 * Set when a request hits in a cache and the cache is not going
653 * to respond. This is used by the crossbar to coordinate
654 * responses for cache maintenance operations.
655 */
656 void setSatisfied()
657 {
658 assert(cmd.isClean());
659 assert(!flags.isSet(SATISFIED));
660 flags.set(SATISFIED);
661 }
662 bool satisfied() const { return flags.isSet(SATISFIED); }
663
646 void setSuppressFuncError() { flags.set(SUPPRESS_FUNC_ERROR); }
647 bool suppressFuncError() const { return flags.isSet(SUPPRESS_FUNC_ERROR); }
648 void setBlockCached() { flags.set(BLOCK_CACHED); }
649 bool isBlockCached() const { return flags.isSet(BLOCK_CACHED); }
650 void clearBlockCached() { flags.clear(BLOCK_CACHED); }
651
652 // Network error conditions... encapsulate them as methods since
653 // their encoding keeps changing (from result field to command

--- 565 unchanged lines hidden --- 		664 void setSuppressFuncError() { flags.set(SUPPRESS_FUNC_ERROR); }
665 bool suppressFuncError() const { return flags.isSet(SUPPRESS_FUNC_ERROR); }
666 void setBlockCached() { flags.set(BLOCK_CACHED); }
667 bool isBlockCached() const { return flags.isSet(BLOCK_CACHED); }
668 void clearBlockCached() { flags.clear(BLOCK_CACHED); }
669
670 // Network error conditions... encapsulate them as methods since
671 // their encoding keeps changing (from result field to command

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