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-rw-r--r--src/arch/SConscript1
-rw-r--r--src/arch/alpha/mmaped_ipr.hh61
-rw-r--r--src/arch/mips/mmaped_ipr.hh61
-rw-r--r--src/arch/sparc/asi.hh2
-rw-r--r--src/arch/sparc/miscregfile.hh1
-rw-r--r--src/arch/sparc/mmaped_ipr.hh63
-rw-r--r--src/arch/sparc/tlb.cc24
-rw-r--r--src/arch/sparc/tlb.hh3
8 files changed, 211 insertions, 5 deletions
diff --git a/src/arch/SConscript b/src/arch/SConscript
index bbe3c4e3a..74be5f8d1 100644
--- a/src/arch/SConscript
+++ b/src/arch/SConscript
@@ -53,6 +53,7 @@ isa_switch_hdrs = Split('''
isa_traits.hh
kernel_stats.hh
locked_mem.hh
+ mmaped_ipr.hh
process.hh
regfile.hh
remote_gdb.hh
diff --git a/src/arch/alpha/mmaped_ipr.hh b/src/arch/alpha/mmaped_ipr.hh
new file mode 100644
index 000000000..2b4ba8745
--- /dev/null
+++ b/src/arch/alpha/mmaped_ipr.hh
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006 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.
+ *
+ * Authors: Ali Saidi
+ */
+
+#ifndef __ARCH_ALPHA_MMAPED_IPR_HH__
+#define __ARCH_ALPHA_MMAPED_IPR_HH__
+
+/**
+ * @file
+ *
+ * ISA-specific helper functions for memory mapped IPR accesses.
+ */
+
+#include "mem/packet.hh"
+
+
+namespace AlphaISA
+{
+inline Tick
+handleIprRead(ThreadContext *xc, Packet *pkt)
+{
+ panic("No handleIprRead implementation in Alpha\n");
+}
+
+
+inline Tick
+handleIprWrite(ThreadContext *xc, Packet *pkt)
+{
+ panic("No handleIprWrite implementation in Alpha\n");
+}
+
+
+} // namespace AlphaISA
+
+#endif
diff --git a/src/arch/mips/mmaped_ipr.hh b/src/arch/mips/mmaped_ipr.hh
new file mode 100644
index 000000000..041c76fdc
--- /dev/null
+++ b/src/arch/mips/mmaped_ipr.hh
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2006 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.
+ *
+ * Authors: Ali Saidi
+ */
+
+#ifndef __ARCH_MIPS_MMAPED_IPR_HH__
+#define __ARCH_MIPS_MMAPED_IPR_HH__
+
+/**
+ * @file
+ *
+ * ISA-specific helper functions for memory mapped IPR accesses.
+ */
+
+#include "mem/packet.hh"
+
+
+namespace MipsISA
+{
+inline Tick
+handleIprRead(ThreadContext *xc, Packet *pkt)
+{
+ panic("No implementation for handleIprRead in MIPS\n");
+}
+
+
+inline Tick
+handleIprWrite(ThreadContext *xc, Packet *pkt)
+{
+ panic("No implementation for handleIprWrite in MIPS\n");
+}
+
+
+} // namespace MipsISA
+
+#endif
diff --git a/src/arch/sparc/asi.hh b/src/arch/sparc/asi.hh
index bd1696c78..a0d667cf3 100644
--- a/src/arch/sparc/asi.hh
+++ b/src/arch/sparc/asi.hh
@@ -35,6 +35,7 @@
namespace SparcISA
{
enum ASI {
+ ASI_IMPLICIT = 0x00,
/* Priveleged ASIs */
//0x00-0x03 implementation dependent
ASI_NUCLEUS = 0x4,
@@ -242,7 +243,6 @@ namespace SparcISA
ASI_BLK_SL = 0xF9,
ASI_BLOCK_SECONDARY_LITTLE = ASI_BLK_SL,
//0xFA-0xFF implementation dependent
- ASI_IMPLICIT = 0xFF,
MAX_ASI = 0xFF
};
diff --git a/src/arch/sparc/miscregfile.hh b/src/arch/sparc/miscregfile.hh
index a4ce6ca5c..9cfe3a8cf 100644
--- a/src/arch/sparc/miscregfile.hh
+++ b/src/arch/sparc/miscregfile.hh
@@ -32,7 +32,6 @@
#ifndef __ARCH_SPARC_MISCREGFILE_HH__
#define __ARCH_SPARC_MISCREGFILE_HH__
-#include "arch/sparc/asi.hh"
#include "arch/sparc/faults.hh"
#include "arch/sparc/isa_traits.hh"
#include "arch/sparc/types.hh"
diff --git a/src/arch/sparc/mmaped_ipr.hh b/src/arch/sparc/mmaped_ipr.hh
new file mode 100644
index 000000000..d87d127b0
--- /dev/null
+++ b/src/arch/sparc/mmaped_ipr.hh
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2006 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.
+ *
+ * Authors: Ali Saidi
+ */
+
+#ifndef __ARCH_SPARC_MMAPED_IPR_HH__
+#define __ARCH_SPARC_MMAPED_IPR_HH__
+
+/**
+ * @file
+ *
+ * ISA-specific helper functions for memory mapped IPR accesses.
+ */
+
+#include "cpu/thread_context.hh"
+#include "mem/packet.hh"
+#include "arch/sparc/tlb.hh"
+
+
+namespace SparcISA
+{
+inline Tick
+handleIprRead(ThreadContext *xc, Packet *pkt)
+{
+ return xc->getDTBPtr()->doMmuRegRead(xc, pkt);
+}
+
+
+inline Tick
+handleIprWrite(ThreadContext *xc, Packet *pkt)
+{
+ return xc->getDTBPtr()->doMmuRegWrite(xc, pkt);
+}
+
+
+} // namespace SparcISA
+
+#endif
diff --git a/src/arch/sparc/tlb.cc b/src/arch/sparc/tlb.cc
index 9b7943ed9..5fde4d36d 100644
--- a/src/arch/sparc/tlb.cc
+++ b/src/arch/sparc/tlb.cc
@@ -508,13 +508,31 @@ DTB::translate(RequestPtr &req, ThreadContext *tc, bool write)
req->setPaddr(e->pte.paddr() & ~e->pte.size() |
req->getVaddr() & e->pte.size());
return NoFault;
- /*** End of normal Path ***/
+ /** Normal flow ends here. */
-handleMmuRegAccess:
handleScratchRegAccess:
- panic("How are we ever going to deal with this?\n");
+ if (vaddr > 0x38 || (vaddr >= 0x20 && vaddr < 0x30 && !hpriv)) {
+ writeSfr(tc, vaddr, write, Primary, true, IllegalAsi, asi);
+ return new DataAccessException;
+ }
+handleMmuRegAccess:
+ req->setMmapedIpr(true);
+ req->setPaddr(req->getVaddr());
+ return NoFault;
};
+Tick
+DTB::doMmuRegRead(ThreadContext *tc, Packet *pkt)
+{
+ panic("need to implement DTB::doMmuRegRead()\n");
+}
+
+Tick
+DTB::doMmuRegWrite(ThreadContext *tc, Packet *pkt)
+{
+ panic("need to implement DTB::doMmuRegWrite()\n");
+}
+
void
TLB::serialize(std::ostream &os)
{
diff --git a/src/arch/sparc/tlb.hh b/src/arch/sparc/tlb.hh
index 824d6494c..2df4fe4c8 100644
--- a/src/arch/sparc/tlb.hh
+++ b/src/arch/sparc/tlb.hh
@@ -38,6 +38,7 @@
#include "sim/sim_object.hh"
class ThreadContext;
+class Packet;
namespace SparcISA
{
@@ -142,6 +143,8 @@ class DTB : public TLB
}
Fault translate(RequestPtr &req, ThreadContext *tc, bool write);
+ Tick doMmuRegRead(ThreadContext *tc, Packet *pkt);
+ Tick doMmuRegWrite(ThreadContext *tc, Packet *pkt);
private:
void writeSfr(ThreadContext *tc, Addr a, bool write, ContextType ct,