-----Original Message-----
From: [email protected] [mailto:[email protected]] On
Behalf Of Ali Saidi
Sent: Monday, November 08, 2010 11:59 AM
To: [email protected]
Subject: [m5-dev] changeset in m5: ARM: Add checkpointing support
changeset 08d6a773d1b6 in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=08d6a773d1b6
description:
ARM: Add checkpointing support
diffstat:
src/arch/arm/isa.hh | 12 +++++-
src/arch/arm/linux/system.cc | 5 +-
src/arch/arm/linux/system.hh | 4 +-
src/arch/arm/pagetable.hh | 87 +++++++++++++++++++++++------------
--------
src/arch/arm/table_walker.cc | 16 ++++++-
src/arch/arm/table_walker.hh | 2 +-
src/arch/arm/tlb.cc | 14 ++++++-
src/arch/arm/tlb.hh | 2 -
src/dev/arm/gic.cc | 44 +++++++++++++++++++++-
src/dev/arm/pl011.cc | 42 ++++++++++++++++++++-
src/dev/arm/rv_ctrl.cc | 2 -
src/dev/arm/timer_sp804.cc | 59 ++++++++++++++++++++++++++++-
src/dev/arm/timer_sp804.hh | 4 ++
src/mem/physical.cc | 30 +++++++++++++++
src/mem/physical.hh | 5 ++
src/sim/SConscript | 1 +
src/sim/system.cc | 2 +-
src/sim/system.hh | 2 +-
18 files changed, 268 insertions(+), 65 deletions(-)
diffs (truncated from 587 to 300 lines):
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/isa.hh
--- a/src/arch/arm/isa.hh Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/isa.hh Mon Nov 08 13:58:25 2010 -0600
@@ -178,10 +178,18 @@
}
void serialize(EventManager *em, std::ostream &os)
- {}
+ {
+ DPRINTF(Checkpoint, "Serializing Arm Misc Registers\n");
+ SERIALIZE_ARRAY(miscRegs, NumMiscRegs);
+ }
void unserialize(EventManager *em, Checkpoint *cp,
const std::string §ion)
- {}
+ {
+ DPRINTF(Checkpoint, "Unserializing Arm Misc Registers\n");
+ UNSERIALIZE_ARRAY(miscRegs, NumMiscRegs);
+ CPSR tmp_cpsr = miscRegs[MISCREG_CPSR];
+ updateRegMap(tmp_cpsr);
+ }
ISA()
{
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/linux/system.cc
--- a/src/arch/arm/linux/system.cc Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/linux/system.cc Mon Nov 08 13:58:25 2010 -0600
@@ -99,9 +99,9 @@
}
void
-LinuxArmSystem::startup()
+LinuxArmSystem::initState()
{
- ArmSystem::startup();
+ ArmSystem::initState();
ThreadContext *tc = threadContexts[0];
// Set the initial PC to be at start of the kernel code
@@ -117,7 +117,6 @@
{
}
-
LinuxArmSystem *
LinuxArmSystemParams::create()
{
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/linux/system.hh
--- a/src/arch/arm/linux/system.hh Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/linux/system.hh Mon Nov 08 13:58:25 2010 -0600
@@ -67,8 +67,8 @@
LinuxArmSystem(Params *p);
~LinuxArmSystem();
- /** Initialize the CPU for booting */
- void startup();
+ void initState();
+
private:
#ifndef NDEBUG
/** Event to halt the simulator if the kernel calls panic() */
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/pagetable.hh
--- a/src/arch/arm/pagetable.hh Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/pagetable.hh Mon Nov 08 13:58:25 2010 -0600
@@ -48,6 +48,8 @@
#include "arch/arm/vtophys.hh"
#include "config/full_system.hh"
+#include "sim/serialize.hh"
+
namespace ArmISA {
struct VAddr
@@ -71,39 +73,6 @@
};
-struct TlbRange
-{
- Addr va;
- Addr size;
- int contextId;
- bool global;
-
- inline bool
- operator<(const TlbRange &r2) const
- {
- if (!(global || r2.global)) {
- if (contextId < r2.contextId)
- return true;
- else if (contextId > r2.contextId)
- return false;
- }
-
- if (va < r2.va)
- return true;
- return false;
- }
-
- inline bool
- operator==(const TlbRange &r2) const
- {
- return va == r2.va &&
- size == r2.size &&
- contextId == r2.contextId &&
- global == r2.global;
- }
-};
-
-
// ITB/DTB table entry
struct TlbEntry
{
@@ -143,10 +112,8 @@
// Access permissions
bool xn; // Execute Never
- uint8_t ap:3; // Access permissions bits
- uint8_t domain:4; // Access Domain
-
- TlbRange range; // For fast TLB searching
+ uint8_t ap; // Access permissions bits
+ uint8_t domain; // Access Domain
//Construct an entry that maps to physical address addr for SE
mode
TlbEntry(Addr _asn, Addr _vaddr, Addr _paddr)
@@ -196,9 +163,49 @@
return (pfn << N) | (va & size);
}
- void serialize(std::ostream &os) { panic("Need to Implement\n"); }
- void unserialize(Checkpoint *cp, const std::string §ion)
- { panic("Need to Implement\n");}
+ void
+ serialize(std::ostream &os)
+ {
+ SERIALIZE_SCALAR(pfn);
+ SERIALIZE_SCALAR(size);
+ SERIALIZE_SCALAR(vpn);
+ SERIALIZE_SCALAR(asid);
+ SERIALIZE_SCALAR(N);
+ SERIALIZE_SCALAR(global);
+ SERIALIZE_SCALAR(valid);
+ SERIALIZE_SCALAR(nonCacheable);
+ SERIALIZE_SCALAR(sNp);
+ SERIALIZE_ENUM(mtype);
+ SERIALIZE_SCALAR(innerAttrs);
+ SERIALIZE_SCALAR(outerAttrs);
+ SERIALIZE_SCALAR(shareable);
+ SERIALIZE_SCALAR(attributes);
+ SERIALIZE_SCALAR(xn);
+ SERIALIZE_SCALAR(ap);
+ SERIALIZE_SCALAR(domain);
+ }
+ void
+ unserialize(Checkpoint *cp, const std::string §ion)
+ {
+ UNSERIALIZE_SCALAR(pfn);
+ UNSERIALIZE_SCALAR(size);
+ UNSERIALIZE_SCALAR(vpn);
+ UNSERIALIZE_SCALAR(asid);
+ UNSERIALIZE_SCALAR(N);
+ UNSERIALIZE_SCALAR(global);
+ UNSERIALIZE_SCALAR(valid);
+ UNSERIALIZE_SCALAR(nonCacheable);
+ UNSERIALIZE_SCALAR(sNp);
+ UNSERIALIZE_ENUM(mtype);
+ UNSERIALIZE_SCALAR(innerAttrs);
+ UNSERIALIZE_SCALAR(outerAttrs);
+ UNSERIALIZE_SCALAR(shareable);
+ UNSERIALIZE_SCALAR(attributes);
+ UNSERIALIZE_SCALAR(xn);
+ UNSERIALIZE_SCALAR(ap);
+ UNSERIALIZE_SCALAR(domain);
+ }
+
};
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/table_walker.cc
--- a/src/arch/arm/table_walker.cc Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/table_walker.cc Mon Nov 08 13:58:25 2010 -0600
@@ -59,10 +59,20 @@
}
-unsigned int
-drain(Event *de)
+unsigned int TableWalker::drain(Event *de)
{
- panic("Not implemented\n");
+ if (stateQueueL1.size() != 0 || stateQueueL2.size() != 0)
+ {
+ changeState(Draining);
+ DPRINTF(Checkpoint, "TableWalker busy, wait to drain\n");
+ return 1;
+ }
+ else
+ {
+ changeState(Drained);
+ DPRINTF(Checkpoint, "TableWalker free, no need to drain\n");
+ return 0;
+ }
}
Port*
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/table_walker.hh
--- a/src/arch/arm/table_walker.hh Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/table_walker.hh Mon Nov 08 13:58:25 2010 -0600
@@ -350,7 +350,7 @@
return dynamic_cast<const Params *>(_params);
}
- virtual unsigned int drain(Event *de) { panic("write me\n"); }
+ virtual unsigned int drain(Event *de);
virtual Port *getPort(const std::string &if_name, int idx = -1);
Fault walk(RequestPtr req, ThreadContext *tc, uint8_t cid,
TLB::Mode mode,
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/tlb.cc
--- a/src/arch/arm/tlb.cc Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/tlb.cc Mon Nov 08 13:58:25 2010 -0600
@@ -245,14 +245,24 @@
void
TLB::serialize(ostream &os)
{
- panic("Implement Serialize\n");
+ DPRINTF(Checkpoint, "Serializing Arm TLB\n");
+
+ SERIALIZE_SCALAR(_attr);
+ for(int i = 0; i < size; i++){
+ nameOut(os, csprintf("%s.TlbEntry%d", name(), i));
+ table[i].serialize(os);
+ }
}
void
TLB::unserialize(Checkpoint *cp, const string §ion)
{
+ DPRINTF(Checkpoint, "Unserializing Arm TLB\n");
- panic("Need to properly unserialize TLB\n");
+ UNSERIALIZE_SCALAR(_attr);
+ for(int i = 0; i < size; i++){
+ table[i].unserialize(cp, csprintf("%s.TlbEntry%d", section,
i));
+ }
}
void
diff -r a2c660de7787 -r 08d6a773d1b6 src/arch/arm/tlb.hh
--- a/src/arch/arm/tlb.hh Mon Nov 08 13:58:24 2010 -0600
+++ b/src/arch/arm/tlb.hh Mon Nov 08 13:58:25 2010 -0600
@@ -83,8 +83,6 @@
MustBeOne = 0x80
};
protected:
- typedef std::multimap<Addr, int> PageTable;
- PageTable lookupTable; // Quick lookup into page table
TlbEntry *table; // the Page Table
int size; // TLB Size
diff -r a2c660de7787 -r 08d6a773d1b6 src/dev/arm/gic.cc
--- a/src/dev/arm/gic.cc Mon Nov 08 13:58:24 2010 -0600
+++ b/src/dev/arm/gic.cc Mon Nov 08 13:58:25 2010 -0600
@@ -495,13 +495,53 @@
void
Gic::serialize(std::ostream &os)
{
- panic("Need to implement serialization\n");
+ DPRINTF(Checkpoint, "Serializing Arm GIC\n");
+
+ SERIALIZE_SCALAR(distAddr);
+ SERIALIZE_SCALAR(cpuAddr);
+ SERIALIZE_SCALAR(distPioDelay);
+ SERIALIZE_SCALAR(cpuPioDelay);
+ SERIALIZE_SCALAR(enabled);
+ SERIALIZE_SCALAR(itLines);
+ SERIALIZE_SCALAR(itLinesLog2);
+ SERIALIZE_ARRAY(intEnabled, 32);
+ SERIALIZE_ARRAY(pendingInt, 32);
+ SERIALIZE_ARRAY(activeInt, 32);
+ SERIALIZE_ARRAY(iccrpr, 8);
+ SERIALIZE_ARRAY(intPriority, 1020);
+ SERIALIZE_ARRAY(cpuTarget, 1020);
+ SERIALIZE_ARRAY(intConfig, 64);
+ SERIALIZE_ARRAY(cpuEnabled, 8);
+ SERIALIZE_ARRAY(cpuPriority, 8);
+ SERIALIZE_ARRAY(cpuBpr, 8);
+ SERIALIZE_ARRAY(cpuHighestInt, 8);
+ SERIALIZE_SCALAR(irqEnable);
}
void
Gic::unserialize(Checkpoint *cp, const std::string §ion)
{
- panic("Need to implement serialization\n");
+ DPRINTF(Checkpoint, "Unserializing Arm GIC\n");
+
+ UNSERIALIZE_SCALAR(distAddr);
+ UNSERIALIZE_SCALAR(cpuAddr);
+ UNSERIALIZE_SCALAR(distPioDelay);
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