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authorAli Saidi <saidi@eecs.umich.edu>2004-09-03 14:12:59 -0400
committerAli Saidi <saidi@eecs.umich.edu>2004-09-03 14:12:59 -0400
commitaf620e118709e1a5272661c94641c3adf19fa524 (patch)
tree3b8919d166664a2a3c7d6c09c919bb554d4f02c2 /kern
parent8efb592e0b8a51056d75565cb970a99ef895ada5 (diff)
downloadgem5-af620e118709e1a5272661c94641c3adf19fa524.tar.xz
added system option to bin interrupt code seperately.
arch/alpha/ev5.cc: set the mode explictly rather than having a bool user/notuser cpu/simple_cpu/simple_cpu.hh: there is no class Kernel kern/kernel_stats.cc: use cpu_mode_num kern/kernel_stats.hh: add interrupt mode and use cpu_mode_num rather than constant kern/linux/linux_system.cc: kern/linux/linux_system.hh: kern/system_events.cc: kern/system_events.hh: add events to change the mode to/from interrupt sim/system.cc: sim/system.hh: add a pal symbol table --HG-- extra : convert_revision : 9d30e826b72122062a5ea12d094f94760e75c66a
Diffstat (limited to 'kern')
-rw-r--r--kern/kernel_stats.cc28
-rw-r--r--kern/kernel_stats.hh7
-rw-r--r--kern/linux/linux_system.cc18
-rw-r--r--kern/linux/linux_system.hh14
-rw-r--r--kern/system_events.cc14
-rw-r--r--kern/system_events.hh20
6 files changed, 84 insertions, 17 deletions
diff --git a/kern/kernel_stats.cc b/kern/kernel_stats.cc
index c8c04e6d1..c08ee08f7 100644
--- a/kern/kernel_stats.cc
+++ b/kern/kernel_stats.cc
@@ -45,12 +45,13 @@ using namespace Stats;
namespace Kernel {
-const char *modestr[] = { "kernel", "user", "idle" };
+const char *modestr[] = { "kernel", "user", "idle", "interrupt" };
Statistics::Statistics(ExecContext *context)
: xc(context), idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
iplLast(0), iplLastTick(0)
{
+ bin_int = xc->system->params->bin_int;
}
void
@@ -153,20 +154,20 @@ Statistics::regStats(const string &_name)
}
_mode
- .init(3)
+ .init(cpu_mode_num)
.name(name() + ".mode_switch")
.desc("number of protection mode switches")
;
- for (int i = 0; i < 3; ++i)
+ for (int i = 0; i < cpu_mode_num; ++i)
_mode.subname(i, modestr[i]);
_modeGood
- .init(3)
+ .init(cpu_mode_num)
.name(name() + ".mode_good")
;
- for (int i = 0; i < 3; ++i)
+ for (int i = 0; i < cpu_mode_num; ++i)
_modeGood.subname(i, modestr[i]);
_modeFraction
@@ -175,18 +176,18 @@ Statistics::regStats(const string &_name)
.flags(total)
;
- for (int i = 0; i < 3; ++i)
+ for (int i = 0; i < cpu_mode_num; ++i)
_modeFraction.subname(i, modestr[i]);
_modeFraction = _modeGood / _mode;
_modeTicks
- .init(3)
+ .init(cpu_mode_num)
.name(name() + ".mode_ticks")
.desc("number of ticks spent at the given mode")
.flags(pdf)
;
- for (int i = 0; i < 3; ++i)
+ for (int i = 0; i < cpu_mode_num; ++i)
_modeTicks.subname(i, modestr[i]);
_swap_context
@@ -198,7 +199,7 @@ Statistics::regStats(const string &_name)
void
Statistics::setIdleProcess(Addr idlepcbb)
{
- assert(themode == kernel);
+ assert(themode == kernel || themode == interrupt);
idleProcess = idlepcbb;
themode = idle;
changeMode(themode);
@@ -241,14 +242,17 @@ Statistics::swpipl(int ipl)
}
void
-Statistics::mode(bool usermode)
+Statistics::mode(cpu_mode newmode)
{
Addr pcbb = xc->regs.ipr[AlphaISA::IPR_PALtemp23];
- cpu_mode newmode = usermode ? user : kernel;
- if (newmode == kernel && pcbb == idleProcess)
+ if ((newmode == kernel || newmode == interrupt) &&
+ pcbb == idleProcess)
newmode = idle;
+ if (bin_int == false && newmode == interrupt)
+ newmode = kernel;
+
changeMode(newmode);
}
diff --git a/kern/kernel_stats.hh b/kern/kernel_stats.hh
index 8339c578c..af93eb95c 100644
--- a/kern/kernel_stats.hh
+++ b/kern/kernel_stats.hh
@@ -45,7 +45,7 @@ enum Fault;
namespace Kernel {
-enum cpu_mode { kernel, user, idle, cpu_mode_num };
+enum cpu_mode { kernel, user, idle, interrupt, cpu_mode_num };
extern const char *modestr[];
class Binning
@@ -98,7 +98,7 @@ class Binning
std::vector<std::string> binned_fns;
private:
- Stats::MainBin *modeBin[3];
+ Stats::MainBin *modeBin[cpu_mode_num];
public:
const bool bin;
@@ -133,6 +133,7 @@ class Statistics : public Serializable
Addr idleProcess;
cpu_mode themode;
Tick lastModeTick;
+ bool bin_int;
void changeMode(cpu_mode newmode);
@@ -177,7 +178,7 @@ class Statistics : public Serializable
void hwrei() { _hwrei++; }
void fault(Fault fault) { _faults[fault]++; }
void swpipl(int ipl);
- void mode(bool usermode);
+ void mode(cpu_mode newmode);
void context(Addr oldpcbb, Addr newpcbb);
void callpal(int code);
diff --git a/kern/linux/linux_system.cc b/kern/linux/linux_system.cc
index 10641de87..91ad45157 100644
--- a/kern/linux/linux_system.cc
+++ b/kern/linux/linux_system.cc
@@ -143,6 +143,16 @@ LinuxSystem::LinuxSystem(Params *p)
printThreadEvent = new PrintThreadInfo(&pcEventQueue, "threadinfo");
if (kernelSymtab->findAddress("alpha_switch_to", addr) && DTRACE(Thread))
printThreadEvent->schedule(addr + sizeof(MachInst) * 6);
+
+ intStartEvent = new InterruptStartEvent(&pcEventQueue, "intStartEvent");
+ if (kernelSymtab->findAddress("do_entInt", addr))
+ intStartEvent->schedule(addr + sizeof(MachInst) * 2);
+
+ intEndEvent = new InterruptEndEvent(&pcEventQueue, "intStartEvent");
+ if (palSymtab->findAddress("Call_Pal_Rti", addr))
+ intEndEvent->schedule(addr + sizeof(MachInst));
+ else
+ panic("could not find symbol\n");
}
LinuxSystem::~LinuxSystem()
@@ -155,6 +165,8 @@ LinuxSystem::~LinuxSystem()
delete skipCacheProbeEvent;
delete debugPrintkEvent;
delete idleStartEvent;
+ delete printThreadEvent;
+ delete intStartEvent;
}
@@ -193,6 +205,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem)
Param<bool> bin;
VectorParam<string> binned_fns;
+ Param<bool> bin_int;
END_DECLARE_SIM_OBJECT_PARAMS(LinuxSystem)
@@ -210,7 +223,8 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(LinuxSystem)
INIT_PARAM_DFLT(system_type, "Type of system we are emulating", 34),
INIT_PARAM_DFLT(system_rev, "Revision of system we are emulating", 1<<10),
INIT_PARAM_DFLT(bin, "is this system to be binned", false),
- INIT_PARAM(binned_fns, "functions to be broken down and binned")
+ INIT_PARAM(binned_fns, "functions to be broken down and binned"),
+ INIT_PARAM_DFLT(bin_int, "is interrupt code binned seperately?", false)
END_INIT_SIM_OBJECT_PARAMS(LinuxSystem)
@@ -230,7 +244,7 @@ CREATE_SIM_OBJECT(LinuxSystem)
p->system_rev = system_rev;
p->bin = bin;
p->binned_fns = binned_fns;
-
+ p->bin_int = bin_int;
return new LinuxSystem(p);
}
diff --git a/kern/linux/linux_system.hh b/kern/linux/linux_system.hh
index 707204607..f5fd2b06b 100644
--- a/kern/linux/linux_system.hh
+++ b/kern/linux/linux_system.hh
@@ -83,8 +83,22 @@ class LinuxSystem : public System
*/
LinuxSkipDelayLoopEvent *skipDelayLoopEvent;
+ /**
+ * Event to print information about thread switches if the trace flag
+ * Thread is set
+ */
PrintThreadInfo *printThreadEvent;
+ /**
+ * Event to bin Interrupts seperately from kernel code
+ */
+ InterruptStartEvent *intStartEvent;
+
+ /**
+ * Event to bin Interrupts seperately from kernel code
+ */
+ InterruptEndEvent *intEndEvent;
+
/** Grab the PCBB of the idle process when it starts */
IdleStartEvent *idleStartEvent;
diff --git a/kern/system_events.cc b/kern/system_events.cc
index 91daf53ca..b6526d193 100644
--- a/kern/system_events.cc
+++ b/kern/system_events.cc
@@ -71,3 +71,17 @@ IdleStartEvent::process(ExecContext *xc)
{
xc->kernelStats->setIdleProcess(xc->regs.ipr[AlphaISA::IPR_PALtemp23]);
}
+
+void
+InterruptStartEvent::process(ExecContext *xc)
+{
+ xc->kernelStats->mode(Kernel::interrupt);
+}
+
+void
+InterruptEndEvent::process(ExecContext *xc)
+{
+ // We go back to kernel, if we are user, inside the rti
+ // pal code we will get switched to user because of the ICM write
+ xc->kernelStats->mode(Kernel::kernel);
+}
diff --git a/kern/system_events.hh b/kern/system_events.hh
index 95027572f..8a8549d03 100644
--- a/kern/system_events.hh
+++ b/kern/system_events.hh
@@ -64,4 +64,24 @@ class IdleStartEvent : public PCEvent
{}
virtual void process(ExecContext *xc);
};
+
+class InterruptStartEvent : public PCEvent
+{
+ public:
+ InterruptStartEvent(PCEventQueue *q, const std::string &desc)
+ : PCEvent(q, desc)
+ {}
+ virtual void process(ExecContext *xc);
+};
+
+class InterruptEndEvent : public PCEvent
+{
+ public:
+ InterruptEndEvent(PCEventQueue *q, const std::string &desc)
+ : PCEvent(q, desc)
+ {}
+ virtual void process(ExecContext *xc);
+};
+
+
#endif // __SYSTEM_EVENTS_HH__