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mem: Add snoop filter to SystemXBar by default

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This patch changes the default behaviour of the SystemXBar, adding a
snoop filter. With the recent updates to the snoop filter allocation
behaviour this change no longer causes problems for the regressions
without caches.

Change-Id: Ibe0cd437b71b2ede9002384126553679acc69cc1
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Tony Gutierrez <anthony.gutierrez@amd.com>
This commit is contained in:
Andreas Hansson
2016-08-12 14:11:45 +01:00
parent a23e914519
commit 080d4e08d6
3 changed files with 4 additions and 11 deletions
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7
tests/configs/base_config.py
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@@ -126,9 +126,6 @@ class BaseSystem(object):
cpu.createInterruptController()
cpu.connectAllPorts(sha_bus if sha_bus != None else system.membus,
system.membus)
# System has caches before the membus -> add snoop filter
if sha_bus and system.membus.snoop_filter == NULL:
system.membus.snoop_filter = SnoopFilter()
def init_kvm(self, system):
"""Do KVM-specific system initialization.
@@ -152,9 +149,7 @@ class BaseSystem(object):
self.init_kvm(system)
sha_bus = self.create_caches_shared(system)
# System has caches before the membus -> add snoop filter
if sha_bus and system.membus.snoop_filter == NULL:
system.membus.snoop_filter = SnoopFilter()
for cpu in system.cpu:
self.init_cpu(system, cpu, sha_bus)