delete pcifake, tsunamifake. Combine BadAddr/IsaFake into one

[gem5.git] / src / dev / isa_fake.hh

diff --git a/src/dev/isa_fake.hh b/src/dev/isa_fake.hh
index 6665f1a788d7e97ab4784091b3754b4c13e2eb4f..c4072e42c3464a8f7b8088ba7e5bb1b0bceece61 100644 (file)
--- a/src/dev/isa_fake.hh
+++ b/src/dev/isa_fake.hh
@@ -25,8 +25,7 @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
- * Authors: Miguel Serrano
- *          Ali Saidi
+ * Authors: Ali Saidi
  */
 
 /** @file
@@ -42,10 +41,11 @@
 #include "mem/packet.hh"
 
 /**
- * IsaFake is a device that returns -1 on all reads and
- * accepts all writes. It is meant to be placed at an address range
+ * IsaFake is a device that returns, BadAddr, 1 or 0 on all reads and
+ *  rites. It is meant to be placed at an address range
  * so that an mcheck doesn't occur when an os probes a piece of hw
- * that doesn't exist (e.g. UARTs1-3).
+ * that doesn't exist (e.g. UARTs1-3), or catch requests in the memory system
+ * that have no responders..
  */
 class IsaFake : public BasicPioDevice
 {
@@ -53,9 +53,12 @@ class IsaFake : public BasicPioDevice
     struct Params : public BasicPioDevice::Params
     {
         Addr pio_size;
+        bool retBadAddr;
+        uint8_t retData;
     };
   protected:
     const Params *params() const { return (const Params*)_params; }
+    uint64_t retData;
 
   public:
     /**
@@ -77,23 +80,8 @@ class IsaFake : public BasicPioDevice
      * @param data the data to not write.
      */
     virtual Tick write(PacketPtr pkt);
-};
 
-/**
- * BadAddr is a device that fills the packet's result field with "BadAddress".
- * @todo: Consider consolidating with IsaFake and similar classes.
- */
-class BadAddr : public BasicPioDevice
-{
-  public:
-    struct Params : public BasicPioDevice::Params
-    {
-    };
-
-    BadAddr(Params *p);
-    virtual void init();
-    virtual Tick read(PacketPtr pkt);
-    virtual Tick write(PacketPtr pkt);
+    void init();
 };
 
-#endif // __TSUNAMI_FAKE_HH__
+#endif // __ISA_FAKE_HH__