From 271b9a5435ac26c836774b25ad1fa68e2351d25a Mon Sep 17 00:00:00 2001
From: Ali Saidi <saidi@eecs.umich.edu>
Date: Thu, 23 Nov 2006 01:42:57 -0500
Subject: first cut at a sparc tlb

src/arch/sparc/SConscript:
    Add code to serialize/unserialze tlb entries
src/arch/sparc/asi.cc:
src/arch/sparc/asi.hh:
    update asi names for how they're listed in the supplement
    add asis
    add more asi functions
src/arch/sparc/isa_traits.hh:
    move the interrupt stuff and some basic address space stuff into isa traits
src/arch/sparc/miscregfile.cc:
src/arch/sparc/miscregfile.hh:
    add mmu registers to tlb
    get rid of implicit asi stuff... the tlb will handle it
src/arch/sparc/regfile.hh:
    make isnt/dataAsid return ints not asis
src/arch/sparc/tlb.cc:
src/arch/sparc/tlb.hh:
    first cut at sparc tlb
src/arch/sparc/vtophys.hh:
    pagatable nedes to be included here
src/mem/request.hh:
    add asi and if the request is a memory mapped register to the requset object
src/sim/host.hh:
    fix incorrect definition of LL

--HG--
extra : convert_revision : 6c85cd1681c62c8cd8eab04f70b1f15a034b0aa3
---
 src/arch/sparc/tlb_map.hh | 135 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 src/arch/sparc/tlb_map.hh

(limited to 'src/arch/sparc/tlb_map.hh')

diff --git a/src/arch/sparc/tlb_map.hh b/src/arch/sparc/tlb_map.hh
new file mode 100644
index 000000000..226ef23a1
--- /dev/null
+++ b/src/arch/sparc/tlb_map.hh
@@ -0,0 +1,135 @@
+/*
+ * 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_TLB_MAP_HH__
+#define __ARCH_SPARC_TLB_MAP_HH__
+
+#include "arch/sparc/pagetable.hh"
+#include <map>
+
+namespace SparcISA
+{
+
+class TlbMap
+{
+  private:
+    typedef std::map<TlbRange, TlbEntry*> RangeMap;
+    RangeMap tree;
+
+  public:
+    typedef RangeMap::iterator iterator;
+
+    iterator find(const TlbRange &r)
+    {
+        iterator i;
+
+        i = tree.upper_bound(r);
+
+        if (i == tree.begin())
+            // Nothing could match, so return end()
+            return tree.end();
+
+        i--;
+
+        if (r.real != i->first.real)
+            return tree.end();
+        if (!r.real && r.contextId != i->first.contextId)
+            return tree.end();
+        if (r.partitionId != i->first.partitionId)
+            return tree.end();
+        if (i->first.va <= r.va+r.size &&
+            i->first.va+i->first.size >= r.va)
+            return i;
+
+        return tree.end();
+    }
+
+    bool intersect(const TlbRange &r)
+    {
+        iterator i;
+        i = find(r);
+        if (i != tree.end())
+            return true;
+        return false;
+    }
+
+
+    iterator insert(TlbRange &r, TlbEntry *d)
+    {
+        if (intersect(r))
+            return tree.end();
+
+        return tree.insert(std::make_pair<TlbRange,TlbEntry*>(r, d)).first;
+    }
+
+    size_t erase(TlbRange k)
+    {
+        return tree.erase(k);
+    }
+
+    void erase(iterator p)
+    {
+        tree.erase(p);
+    }
+
+    void erase(iterator p, iterator q)
+    {
+        tree.erase(p,q);
+    }
+
+    void clear()
+    {
+        tree.erase(tree.begin(), tree.end());
+    }
+
+    iterator begin()
+    {
+        return tree.begin();
+    }
+
+    iterator end()
+    {
+        return tree.end();
+    }
+
+    size_t size()
+    {
+        return tree.size();
+    }
+
+    bool empty()
+    {
+        return tree.empty();
+    }
+};
+
+};
+
+#endif // __ARCH_SPARC_TLB_MAP_HH__
-- 
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