mem: Add packet matching functions

Add both block and non-block-aligned packet matching functions,
so that both address and secure bits are checked when checking
whether a packet matches a request.

Change-Id: Id0069befb925d112e06f250741cb47d9dfa249cc
Signed-off-by: Daniel R. Carvalho <odanrc@yahoo.com.br>
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/17533
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Nikos Nikoleris <nikos.nikoleris@arm.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/src/mem/packet.hh b/src/mem/packet.hh
index 4e3ea15e1..f942e8ddd 100644
--- a/src/mem/packet.hh
+++ b/src/mem/packet.hh
@@ -980,6 +980,45 @@ class Packet : public Printable
         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:
     /**