/*
- * Copyright (c) 2012-2018 ARM Limited
+ * Copyright (c) 2012-2019 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
#include <cassert>
#include <list>
+#include "base/addr_range.hh"
#include "base/cast.hh"
#include "base/compiler.hh"
#include "base/flags.hh"
#include "base/logging.hh"
#include "base/printable.hh"
#include "base/types.hh"
+#include "config/the_isa.hh"
#include "mem/request.hh"
#include "sim/core.hh"
WriteClean, // writes dirty data below without evicting
CleanEvict,
SoftPFReq,
+ SoftPFExReq,
HardPFReq,
SoftPFResp,
HardPFResp,
// Flags to transfer across when copying a packet
COPY_FLAGS = 0x0000003F,
+ // Flags that are used to create reponse packets
+ RESPONDER_FLAGS = 0x00000009,
+
// Does this packet have sharers (which means it should not be
// considered writable) or not. See setHasSharers below.
HAS_SHARERS = 0x00000001,
bool isPrint() const { return cmd.isPrint(); }
bool isFlush() const { return cmd.isFlush(); }
+ bool isWholeLineWrite(unsigned blk_size)
+ {
+ return (cmd == MemCmd::WriteReq || cmd == MemCmd::WriteLineReq) &&
+ getOffset(blk_size) == 0 && getSize() == blk_size;
+ }
+
//@{
/// Snoop flags
/**
bool responderHadWritable() const
{ return flags.isSet(RESPONDER_HAD_WRITABLE); }
+ /**
+ * Copy the reponse flags from an input packet to this packet. The
+ * reponse flags determine whether a responder has been found and
+ * the state at which the block will be at the destination.
+ *
+ * @pkt The packet that we will copy flags from
+ */
+ void copyResponderFlags(const PacketPtr pkt);
+
/**
* A writeback/writeclean cmd gets propagated further downstream
* by the receiver when the flag is set.
unsigned getSize() const { assert(flags.isSet(VALID_SIZE)); return size; }
+ /**
+ * Get address range to which this packet belongs.
+ *
+ * @return Address range of this packet.
+ */
+ AddrRange getAddrRange() const;
+
Addr getOffset(unsigned int blk_size) const
{
return getAddr() & Addr(blk_size - 1);
{
if (req->isLLSC())
return MemCmd::LoadLockedReq;
+ else if (req->isPrefetchEx())
+ return MemCmd::SoftPFExReq;
else if (req->isPrefetch())
return MemCmd::SoftPFReq;
else
flags.set(VALID_SIZE);
}
+ /**
+ * Check if packet corresponds to a given block-aligned address and
+ * address space.
+ *
+ * @param addr The address to compare against.
+ * @param is_secure Whether addr belongs to the secure address space.
+ * @param blk_size Block size in bytes.
+ * @return Whether packet matches description.
+ */
+ bool matchBlockAddr(const Addr addr, const bool is_secure,
+ const int blk_size) const;
+
+ /**
+ * Check if this packet refers to the same block-aligned address and
+ * address space as another packet.
+ *
+ * @param pkt The packet to compare against.
+ * @param blk_size Block size in bytes.
+ * @return Whether packet matches description.
+ */
+ bool matchBlockAddr(const PacketPtr pkt, const int blk_size) const;
+
+ /**
+ * Check if packet corresponds to a given address and address space.
+ *
+ * @param addr The address to compare against.
+ * @param is_secure Whether addr belongs to the secure address space.
+ * @return Whether packet matches description.
+ */
+ bool matchAddr(const Addr addr, const bool is_secure) const;
+
+ /**
+ * Check if this packet refers to the same address and address space as
+ * another packet.
+ *
+ * @param pkt The packet to compare against.
+ * @return Whether packet matches description.
+ */
+ bool matchAddr(const PacketPtr pkt) const;
public:
/**
template <typename T>
T get(ByteOrder endian) const;
+#if THE_ISA != NULL_ISA
/**
* Get the data in the packet byte swapped from guest to host
* endian.
*/
template <typename T>
- T get() const;
+ T get() const
+ M5_DEPRECATED_MSG("The memory system should be ISA independent.");
+#endif
/** Set the value in the data pointer to v as big endian. */
template <typename T>
template <typename T>
void set(T v, ByteOrder endian);
+#if THE_ISA != NULL_ISA
/** Set the value in the data pointer to v as guest endian. */
template <typename T>
- void set(T v);
-
+ void set(T v)
+ M5_DEPRECATED_MSG("The memory system should be ISA independent.");
+#endif
/**
* Get the data in the packet byte swapped from the specified
/** @} */
- private: // Private data accessor methods
/** Get the data in the packet without byte swapping. */
template <typename T>
T getRaw() const;