From 537239b278f7b8171d2eb09ef7f99c332266c48f Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Sun, 26 Aug 2007 20:24:18 -0700
Subject: Address Translation: Make SE mode use an actual TLB/MMU for
 translation like FS.

--HG--
extra : convert_revision : a04a30df0b6246e877a1cea35420dbac94b506b1
---
 src/arch/sparc/faults.cc | 64 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)

(limited to 'src/arch/sparc/faults.cc')

diff --git a/src/arch/sparc/faults.cc b/src/arch/sparc/faults.cc
index 88c086090..07d332b58 100644
--- a/src/arch/sparc/faults.cc
+++ b/src/arch/sparc/faults.cc
@@ -620,6 +620,70 @@ void PowerOnReset::invoke(ThreadContext * tc)
 
 #else // !FULL_SYSTEM
 
+void FastInstructionAccessMMUMiss::invoke(ThreadContext *tc)
+{
+    Process *p = tc->getProcessPtr();
+    Addr paddr;
+    bool success = p->pTable->translate(vaddr, paddr);
+    if(!success) {
+        panic("Tried to execute unmapped address %#x.\n", vaddr);
+    } else {
+
+        uint64_t entry = 0;
+        entry |= 0ULL << 1; // Not writable
+        entry |= 0ULL << 2; // Available in nonpriveleged mode
+        entry |= 0ULL << 3; // No side effects
+        entry |= 1ULL << 4; // Virtually cachable
+        entry |= 1ULL << 5; // Physically cachable
+        entry |= 0ULL << 6; // Not locked
+        entry |= mbits(paddr, 39, 13); // Physical address
+        entry |= 0ULL << 48; // size = 8k
+        entry |= 0uLL << 59; // Endianness not inverted
+        entry |= 0ULL << 60; // Not no fault only
+        entry |= 0ULL << 61; // size = 8k
+        entry |= 1ULL << 63; // valid
+        PageTableEntry PTE(entry);
+
+        Addr alignedVaddr = p->pTable->pageAlign(vaddr);
+        tc->getITBPtr()->insert(alignedVaddr, 0 /*partition id*/,
+                p->M5_pid /*context id*/, false, PTE);
+    }
+}
+
+void FastDataAccessMMUMiss::invoke(ThreadContext *tc)
+{
+    Process *p = tc->getProcessPtr();
+    Addr paddr;
+    bool success = p->pTable->translate(vaddr, paddr);
+    if(!success) {
+        p->checkAndAllocNextPage(vaddr);
+        success = p->pTable->translate(vaddr, paddr);
+    }
+    if(!success) {
+        panic("Tried to access unmapped address %#x.\n", vaddr);
+    } else {
+
+        uint64_t entry = 0;
+        entry |= 1ULL << 1; // Writable
+        entry |= 0ULL << 2; // Available in nonpriveleged mode
+        entry |= 0ULL << 3; // No side effects
+        entry |= 1ULL << 4; // Virtually cachable
+        entry |= 1ULL << 5; // Physically cachable
+        entry |= 0ULL << 6; // Not locked
+        entry |= mbits(paddr, 39, 13); // Physical address
+        entry |= 0ULL << 48; // size = 8k
+        entry |= 0uLL << 59; // Endianness not inverted
+        entry |= 0ULL << 60; // Not no fault only
+        entry |= 0ULL << 61; // size = 8k
+        entry |= 1ULL << 63; // valid
+        PageTableEntry PTE(entry);
+
+        Addr alignedVaddr = p->pTable->pageAlign(vaddr);
+        tc->getDTBPtr()->insert(alignedVaddr, 0 /*partition id*/,
+                p->M5_pid /*context id*/, false, PTE);
+    }
+}
+
 void SpillNNormal::invoke(ThreadContext *tc)
 {
     doNormalFault(tc, trapType(), false);
-- 
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