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authorNathan Binkert <binkertn@umich.edu>2005-06-29 01:20:41 -0400
committerNathan Binkert <binkertn@umich.edu>2005-06-29 01:20:41 -0400
commit8a0bc840221cf7af4845f4ee44de11bc7271ff10 (patch)
tree96800ff9b98a6bc32bdb5a443974bb8c2994ebc4 /cpu
parent036a8ceb8da8aff10b819b4aab32584d41282a64 (diff)
downloadgem5-8a0bc840221cf7af4845f4ee44de11bc7271ff10.tar.xz
Allow CPUs to specify their own CPU ids.
Make the AlphaConsole calculate the number of CPUs instead of passing that in as a parameter. cpu/base.cc: pass the desired cpu_id into registerExecContext, offsetting it by the thread number. a cpu_id of -1 means that it should be generated for you. cpu/base.hh: Take the cpu_id as a parameter cpu/o3/alpha_cpu_builder.cc: cpu/simple/cpu.cc: Accept the cpu_id as a parameter while we're here, let's remove the multiplier since it is not used. dev/alpha_console.cc: don't take the number of CPUs as a parameter. Calculate it from the system based on the number of CPUs that have been registered. move init() code to startup() to ensure that all CPUs are registerd. dev/alpha_console.hh: python/m5/objects/AlphaConsole.py: don't take the number of CPUs as a parameter. move init() code to startup() to ensure that all CPUs are registerd. python/m5/objects/BaseCPU.py: take the cpu_id as a parameter. Default it to -1 which means that it will be generated. sim/system.cc: allow the registerExecContext functioin to take a desired cpu_id as a parameter. Check to ensure that the id isn't already used. Accept -1 as a request to have an id assigned. sim/system.hh: keep track of the number of registered exec contexts. provide a function for accessing the number of exec contexts that checks to ensure that they are all registered correctly. --HG-- extra : convert_revision : 8e12f96ff8a49fa16cdbbdb4c05c651376c35788
Diffstat (limited to 'cpu')
-rw-r--r--cpu/base.cc12
-rw-r--r--cpu/base.hh1
-rw-r--r--cpu/o3/alpha_cpu_builder.cc8
-rw-r--r--cpu/simple/cpu.cc10
4 files changed, 13 insertions, 18 deletions
diff --git a/cpu/base.cc b/cpu/base.cc
index 9e66d934f..50c777b0d 100644
--- a/cpu/base.cc
+++ b/cpu/base.cc
@@ -189,15 +189,15 @@ BaseCPU::registerExecContexts()
{
for (int i = 0; i < execContexts.size(); ++i) {
ExecContext *xc = execContexts[i];
- int cpu_id;
-
#ifdef FULL_SYSTEM
- cpu_id = system->registerExecContext(xc);
+ int id = params->cpu_id;
+ if (id != -1)
+ id += i;
+
+ xc->cpu_id = system->registerExecContext(xc, id);
#else
- cpu_id = xc->process->registerExecContext(xc);
+ xc->cpu_id = xc->process->registerExecContext(xc);
#endif
-
- xc->cpu_id = cpu_id;
}
}
diff --git a/cpu/base.hh b/cpu/base.hh
index cafe70b75..e28f15884 100644
--- a/cpu/base.hh
+++ b/cpu/base.hh
@@ -111,6 +111,7 @@ class BaseCPU : public SimObject
Tick functionTraceStart;
#ifdef FULL_SYSTEM
System *system;
+ int cpu_id;
#endif
};
diff --git a/cpu/o3/alpha_cpu_builder.cc b/cpu/o3/alpha_cpu_builder.cc
index 57061c052..57c567471 100644
--- a/cpu/o3/alpha_cpu_builder.cc
+++ b/cpu/o3/alpha_cpu_builder.cc
@@ -71,9 +71,9 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(DerivAlphaFullCPU)
#ifdef FULL_SYSTEM
SimObjectParam<System *> system;
+Param<int> cpu_id;
SimObjectParam<AlphaITB *> itb;
SimObjectParam<AlphaDTB *> dtb;
-Param<int> mult;
#else
SimObjectVectorParam<Process *> workload;
#endif // FULL_SYSTEM
@@ -164,9 +164,9 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(DerivAlphaFullCPU)
#ifdef FULL_SYSTEM
INIT_PARAM(system, "System object"),
+ INIT_PARAM(cpu_id, "processor ID"),
INIT_PARAM(itb, "Instruction translation buffer"),
INIT_PARAM(dtb, "Data translation buffer"),
- INIT_PARAM(mult, "System clock multiplier"),
#else
INIT_PARAM(workload, "Processes to run"),
#endif // FULL_SYSTEM
@@ -274,9 +274,6 @@ CREATE_SIM_OBJECT(DerivAlphaFullCPU)
DerivAlphaFullCPU *cpu;
#ifdef FULL_SYSTEM
- if (mult != 1)
- panic("Processor clock multiplier must be 1?\n");
-
// Full-system only supports a single thread for the moment.
int actual_num_threads = 1;
#else
@@ -300,6 +297,7 @@ CREATE_SIM_OBJECT(DerivAlphaFullCPU)
#ifdef FULL_SYSTEM
params.system = system;
+ params.cpu_id = cpu_id;
params.itb = itb;
params.dtb = dtb;
#else
diff --git a/cpu/simple/cpu.cc b/cpu/simple/cpu.cc
index de28913e4..1164e35a4 100644
--- a/cpu/simple/cpu.cc
+++ b/cpu/simple/cpu.cc
@@ -823,7 +823,7 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleCPU)
SimObjectParam<AlphaDTB *> dtb;
SimObjectParam<FunctionalMemory *> mem;
SimObjectParam<System *> system;
- Param<int> mult;
+ Param<int> cpu_id;
#else
SimObjectParam<Process *> workload;
#endif // FULL_SYSTEM
@@ -855,7 +855,7 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
INIT_PARAM(dtb, "Data TLB"),
INIT_PARAM(mem, "memory"),
INIT_PARAM(system, "system object"),
- INIT_PARAM(mult, "system clock multiplier"),
+ INIT_PARAM(cpu_id, "processor ID"),
#else
INIT_PARAM(workload, "processes to run"),
#endif // FULL_SYSTEM
@@ -873,11 +873,6 @@ END_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
CREATE_SIM_OBJECT(SimpleCPU)
{
-#ifdef FULL_SYSTEM
- if (mult != 1)
- panic("processor clock multiplier must be 1\n");
-#endif
-
SimpleCPU::Params *params = new SimpleCPU::Params();
params->name = getInstanceName();
params->numberOfThreads = 1;
@@ -898,6 +893,7 @@ CREATE_SIM_OBJECT(SimpleCPU)
params->dtb = dtb;
params->mem = mem;
params->system = system;
+ params->cpu_id = cpu_id;
#else
params->process = workload;
#endif