From 7cd1fd4324bc1f465a9f96a447d240ab697febd2 Mon Sep 17 00:00:00 2001 From: Andreas Sandberg Date: Fri, 15 Feb 2013 17:40:08 -0500 Subject: cpu: Add CPU metadata om the Python classes The configuration scripts currently hard-code the requirements of each CPU. This is clearly not optimal as it makes writing new configuration scripts painful and adding new CPU models requires existing scripts to be updated. This patch adds the following class methods to the base CPU and all relevant CPUs: * memory_mode -- Return a string describing the current memory mode (invalid/atomic/timing). * require_caches -- Does the CPU model require caches? * support_take_over -- Does the CPU support CPU handover? --- src/cpu/BaseCPU.py | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'src/cpu/BaseCPU.py') diff --git a/src/cpu/BaseCPU.py b/src/cpu/BaseCPU.py index 759bc0881..4fc2ebf1b 100644 --- a/src/cpu/BaseCPU.py +++ b/src/cpu/BaseCPU.py @@ -100,6 +100,25 @@ class BaseCPU(MemObject): void flushTLBs(); ''') + @classmethod + def memory_mode(cls): + """Which memory mode does this CPU require?""" + return 'invalid' + + @classmethod + def require_caches(cls): + """Does the CPU model require caches? + + Some CPU models might make assumptions that require them to + have caches. + """ + return False + + @classmethod + def support_take_over(cls): + """Does the CPU model support CPU takeOverFrom?""" + return False + def takeOverFrom(self, old_cpu): self._ccObject.takeOverFrom(old_cpu._ccObject) -- cgit v1.2.3