summaryrefslogtreecommitdiff
path: root/mem
diff options
context:
space:
mode:
Diffstat (limited to 'mem')
-rw-r--r--mem/port.cc65
-rw-r--r--mem/port.hh24
2 files changed, 76 insertions, 13 deletions
diff --git a/mem/port.cc b/mem/port.cc
new file mode 100644
index 000000000..8ce1831db
--- /dev/null
+++ b/mem/port.cc
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2002-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/**
+ * @file Port object definitions.
+ */
+
+#include "base/chunk_generator.hh"
+#include "mem/port.hh"
+
+void
+Port::blobHelper(Addr addr, uint8_t *p, int size, Command cmd)
+{
+ Request rqst;
+ Packet pkt;
+ pkt.req = &rqst;
+ pkt.cmd = cmd;
+
+ for (ChunkGenerator gen(addr, size, sendBlockSizeQuery()); !gen.done(); gen.next())
+ {
+ pkt.addr = rqst.paddr = gen.addr();
+ pkt.size = rqst.size = gen.size();
+ pkt.data = p;
+ sendFunctional(pkt);
+ p += gen.size();
+ }
+}
+
+void
+Port::writeBlobFunctional(Addr addr, uint8_t *p, int size)
+{
+ blobHelper(addr, p, size, Write);
+}
+
+void
+Port::readBlobFunctional(Addr addr, uint8_t *p, int size)
+{
+ blobHelper(addr, p, size, Read);
+}
+
diff --git a/mem/port.hh b/mem/port.hh
index 2d8be1905..d7a0faba2 100644
--- a/mem/port.hh
+++ b/mem/port.hh
@@ -173,29 +173,22 @@ class Port
bool &owner)
{ peer->recvAddressRangesQuery(range_list, owner); }
- // For the read/write blob functional
- // This should be sufficient for everything except ProxyMemory
- // which needs to slip a translation step in as well. (Unless it
- // does the translation underneath sendFunctional(), in which case
- // maybe this doesn't need to be virtual at all.) Do we need
- // similar wrappers for sendAtomic()? If not, should we drop the
- // "Functional" from the names?
+ // Do we need similar wrappers for sendAtomic()? If not, should
+ // we drop the "Functional" from the names?
/** This function is a wrapper around sendFunctional()
that breaks a larger, arbitrarily aligned access into
appropriate chunks. The default implementation can use
getBlockSize() to determine the block size and go from there.
*/
- virtual void readBlobFunctional(Addr addr, uint8_t *p, int size)
- { panic("Unimplemented"); }
+ void readBlobFunctional(Addr addr, uint8_t *p, int size);
/** This function is a wrapper around sendFunctional()
that breaks a larger, arbitrarily aligned access into
appropriate chunks. The default implementation can use
getBlockSize() to determine the block size and go from there.
*/
- virtual void writeBlobFunctional(Addr addr, uint8_t *p, int size)
- { panic("Unimplemented"); }
+ void writeBlobFunctional(Addr addr, uint8_t *p, int size);
/** Fill size bytes starting at addr with byte value val. This
should not need to be virtual, since it can be implemented in
@@ -205,8 +198,13 @@ class Port
prot_memset on the old functional memory that's never used),
but Nate claims it is.
*/
- void memsetBlobFunctional(Addr addr, uint8_t val, int size)
- { panic("Unimplemented"); }
+ void memsetBlobFunctional(Addr addr, uint8_t val, int size);
+
+ private:
+
+ /** Internal helper function for read/writeBlob().
+ */
+ void blobHelper(Addr addr, uint8_t *p, int size, Command cmd);
};
#endif //__MEM_PORT_HH__