Make the IPRs use regular miscreg indexes, and make a table or two to find the miscreg index of a specific IPR.

--HG--
extra : convert_revision : dd235261e7086d6667b1b2bdc4a81b2573e21d53

1 files changed, 140 insertions, 0 deletions

diff --git a/src/arch/alpha/ipr.cc b/src/arch/alpha/ipr.cc
new file mode 100644
index 000000000..50086a845
--- /dev/null
+++ b/src/arch/alpha/ipr.cc
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2003-2005 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.
+ *
+ * Authors: Gabe Black
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include "arch/alpha/ipr.hh"
+
+namespace AlphaISA
+{
+    md_ipr_names MiscRegIndexToIpr[NumInternalProcRegs] =
+    {
+        //Write only
+        IPR_HWINT_CLR,	// H/W interrupt clear register
+        IPR_SL_XMIT,	// serial line transmit register
+        IPR_DC_FLUSH,
+        IPR_IC_FLUSH,	// instruction cache flush control
+        IPR_ALT_MODE,	// alternate mode register
+        IPR_DTB_IA,		// DTLB invalidate all register
+        IPR_DTB_IAP,	// DTLB invalidate all process register
+        IPR_ITB_IA,		// ITLB invalidate all register
+        IPR_ITB_IAP,	// ITLB invalidate all process register
+
+        //Read only
+        IPR_INTID,		// interrupt ID register
+        IPR_SL_RCV,		// serial line receive register
+        IPR_MM_STAT,	// data MMU fault status register
+        IPR_ITB_PTE_TEMP,	// ITLB page table entry temp register
+        IPR_DTB_PTE_TEMP,	// DTLB page table entry temporary register
+
+        IPR_ISR,		// interrupt summary register
+        IPR_ITB_TAG,	// ITLB tag register
+        IPR_ITB_PTE,	// ITLB page table entry register
+        IPR_ITB_ASN,	// ITLB address space register
+        IPR_ITB_IS,		// ITLB invalidate select register
+        IPR_SIRR,		// software interrupt request register
+        IPR_ASTRR,		// asynchronous system trap request register
+        IPR_ASTER,		// asynchronous system trap enable register
+        IPR_EXC_ADDR,	// exception address register
+        IPR_EXC_SUM,	// exception summary register
+        IPR_EXC_MASK,	// exception mask register
+        IPR_PAL_BASE,	// PAL base address register
+        IPR_ICM,		// instruction current mode
+        IPR_IPLR,		// interrupt priority level register
+        IPR_IFAULT_VA_FORM,	// formatted faulting virtual addr register
+        IPR_IVPTBR,		// virtual page table base register
+        IPR_ICSR,		// instruction control and status register
+        IPR_IC_PERR_STAT,	// inst cache parity error status register
+        IPR_PMCTR,		// performance counter register
+
+        // PAL temporary registers...
+        // register meanings gleaned from osfpal.s source code
+        IPR_PALtemp0,	// local scratch
+        IPR_PALtemp1,	// local scratch
+        IPR_PALtemp2,	// entUna
+        IPR_PALtemp3,	// CPU specific impure area pointer
+        IPR_PALtemp4,	// memory management temp
+        IPR_PALtemp5,	// memory management temp
+        IPR_PALtemp6,	// memory management temp
+        IPR_PALtemp7,	// entIF
+        IPR_PALtemp8,	// intmask
+        IPR_PALtemp9,	// entSys
+        IPR_PALtemp10,	// ??
+        IPR_PALtemp11,	// entInt
+        IPR_PALtemp12,	// entArith
+        IPR_PALtemp13,	// reserved for platform specific PAL
+        IPR_PALtemp14,	// reserved for platform specific PAL
+        IPR_PALtemp15,	// reserved for platform specific PAL
+        IPR_PALtemp16,	// scratch / whami<7:0> / mces<4:0>
+        IPR_PALtemp17,	// sysval
+        IPR_PALtemp18,	// usp
+        IPR_PALtemp19,	// ksp
+        IPR_PALtemp20,	// PTBR
+        IPR_PALtemp21,	// entMM
+        IPR_PALtemp22,	// kgp
+        IPR_PALtemp23,	// PCBB
+
+        IPR_DTB_ASN,	// DTLB address space number register
+        IPR_DTB_CM,		// DTLB current mode register
+        IPR_DTB_TAG,	// DTLB tag register
+        IPR_DTB_PTE,	// DTLB page table entry register
+
+        IPR_VA,		// fault virtual address register
+        IPR_VA_FORM,	// formatted virtual address register
+        IPR_MVPTBR,		// MTU virtual page table base register
+        IPR_DTB_IS,		// DTLB invalidate single register
+        IPR_CC,		// cycle counter register
+        IPR_CC_CTL,		// cycle counter control register
+        IPR_MCSR,		// MTU control register
+
+        IPR_DC_PERR_STAT,	// Dcache parity error status register
+        IPR_DC_TEST_CTL,	// Dcache test tag control register
+        IPR_DC_TEST_TAG,	// Dcache test tag register
+        IPR_DC_TEST_TAG_TEMP, // Dcache test tag temporary register
+        IPR_DC_MODE,	// Dcache mode register
+        IPR_MAF_MODE	// miss address file mode register
+    };
+
+    int IprToMiscRegIndex[MaxInternalProcRegs];
+
+    void initializeIprTable()
+    {
+        static bool initialized = false;
+        if(initialized)
+            return;
+
+        memset(IprToMiscRegIndex, -1, MaxInternalProcRegs * sizeof(int));
+
+        for(int x = 0; x < NumInternalProcRegs; x++)
+            IprToMiscRegIndex[MiscRegIndexToIpr[x]] = x;
+    }
+}
+