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configs: Add Tarmac tracing option to the simple Arm configs

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gem5 supports Tarmac trace generation for Arm simulations, but there
are no examples of how to use this feature.

This patch adds a `--tarmac-gen` option to three of the simple Arm
configs. Tarmac generation is useful for out-of-the-box users, and
this patch also provides an example of how to use the Tarmac
generation feature.

Change-Id: I0d3c523b5c0bb6d94de93bc502e4451622fb635d
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/69684
Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com>
Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
Richard Cooper
2022-09-08 18:46:16 +01:00
parent 324ac185c8
commit a83f699f1d
4 changed files with 106 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

61
configs/example/arm/devices.py
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@@ -106,6 +106,8 @@ class ArmCpuCluster(CpuCluster):
l1i_type,
l1d_type,
l2_type,
tarmac_gen=False,
tarmac_dest=None,
):
super().__init__()
self._cpu_type = cpu_type
@@ -122,6 +124,12 @@ class ArmCpuCluster(CpuCluster):
self.generate_cpus(cpu_type, num_cpus)
for cpu in self.cpus:
if tarmac_gen:
cpu.tracer = TarmacTracer()
if tarmac_dest is not None:
cpu.tracer.outfile = tarmac_dest
system.addCpuCluster(self)
def addL1(self):
@@ -177,23 +185,54 @@ class ArmCpuCluster(CpuCluster):
class AtomicCluster(ArmCpuCluster):
def __init__(self, system, num_cpus, cpu_clock, cpu_voltage="1.0V"):
cpu_config = [
ObjectList.cpu_list.get("AtomicSimpleCPU"),
None,
None,
None,
]
super().__init__(system, num_cpus, cpu_clock, cpu_voltage, *cpu_config)
def __init__(
self,
system,
num_cpus,
cpu_clock,
cpu_voltage="1.0V",
tarmac_gen=False,
tarmac_dest=None,
):
super().__init__(
system,
num_cpus,
cpu_clock,
cpu_voltage,
cpu_type=ObjectList.cpu_list.get("AtomicSimpleCPU"),
l1i_type=None,
l1d_type=None,
l2_type=None,
tarmac_gen=tarmac_gen,
tarmac_dest=tarmac_dest,
)
def addL1(self):
pass
class KvmCluster(ArmCpuCluster):
def __init__(self, system, num_cpus, cpu_clock, cpu_voltage="1.0V"):
cpu_config = [ObjectList.cpu_list.get("ArmV8KvmCPU"), None, None, None]
super().__init__(system, num_cpus, cpu_clock, cpu_voltage, *cpu_config)
def __init__(
self,
system,
num_cpus,
cpu_clock,
cpu_voltage="1.0V",
tarmac_gen=False,
tarmac_dest=None,
):
super().__init__(
system,
num_cpus,
cpu_clock,
cpu_voltage,
cpu_type=ObjectList.cpu_list.get("ArmV8KvmCPU"),
l1i_type=None,
l1d_type=None,
l2_type=None,
tarmac_gen=tarmac_gen,
tarmac_dest=tarmac_dest,
)
def addL1(self):
pass