diff options
| author | Gabe Black <gblack@eecs.umich.edu> | 2007-11-12 14:38:24 -0800 |
|---|---|---|
| committer | Gabe Black <gblack@eecs.umich.edu> | 2007-11-12 14:38:24 -0800 |
| commit | f17f3d20be08d25f176138691a29897df54e5cc0 (patch) | |
| tree | b10a30a948462b94c5f1b9001fb7dc314d32cf32 /src/cpu | |
| parent | 7a39457d7ff5fd80484061a4ff7006921899b229 (diff) | |
| download | gem5-f17f3d20be08d25f176138691a29897df54e5cc0.tar.xz | |
X86: Implement a page table walker.
--HG--
extra : convert_revision : 36bab5750100318faa9ba7178dc2e38590053aec
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/BaseCPU.py | 9 | ||||
| -rw-r--r-- | src/cpu/o3/O3CPU.py | 2 | ||||
| -rw-r--r-- | src/cpu/simple/AtomicSimpleCPU.py | 3 | ||||
| -rw-r--r-- | src/cpu/simple/TimingSimpleCPU.py | 2 |
4 files changed, 12 insertions, 4 deletions
diff --git a/src/cpu/BaseCPU.py b/src/cpu/BaseCPU.py index 9b2b99c58..1af30a532 100644 --- a/src/cpu/BaseCPU.py +++ b/src/cpu/BaseCPU.py @@ -100,18 +100,25 @@ class BaseCPU(SimObject): _mem_ports = [] + if build_env['TARGET_ISA'] == 'x86': + itb.walker_port = Port("ITB page table walker port") + dtb.walker_port = Port("ITB page table walker port") + _mem_ports = ["itb.walker_port", "dtb.walker_port"] + def connectMemPorts(self, bus): for p in self._mem_ports: if p != 'physmem_port': exec('self.%s = bus.port' % p) def addPrivateSplitL1Caches(self, ic, dc): - assert(len(self._mem_ports) == 2 or len(self._mem_ports) == 3) + assert(len(self._mem_ports) < 6) self.icache = ic self.dcache = dc self.icache_port = ic.cpu_side self.dcache_port = dc.cpu_side self._mem_ports = ['icache.mem_side', 'dcache.mem_side'] + if build_env['TARGET_ISA'] == 'x86': + self._mem_ports += ["itb.walker_port", "dtb.walker_port"] def addTwoLevelCacheHierarchy(self, ic, dc, l2c): self.addPrivateSplitL1Caches(ic, dc) diff --git a/src/cpu/o3/O3CPU.py b/src/cpu/o3/O3CPU.py index 27ca8ce1e..f0284b2cf 100644 --- a/src/cpu/o3/O3CPU.py +++ b/src/cpu/o3/O3CPU.py @@ -58,7 +58,7 @@ class DerivO3CPU(BaseCPU): cachePorts = Param.Unsigned(200, "Cache Ports") icache_port = Port("Instruction Port") dcache_port = Port("Data Port") - _mem_ports = ['icache_port', 'dcache_port'] + _mem_ports = BaseCPU._mem_ports + ['icache_port', 'dcache_port'] decodeToFetchDelay = Param.Unsigned(1, "Decode to fetch delay") renameToFetchDelay = Param.Unsigned(1 ,"Rename to fetch delay") diff --git a/src/cpu/simple/AtomicSimpleCPU.py b/src/cpu/simple/AtomicSimpleCPU.py index bfd1825c2..28c2aa9c9 100644 --- a/src/cpu/simple/AtomicSimpleCPU.py +++ b/src/cpu/simple/AtomicSimpleCPU.py @@ -41,4 +41,5 @@ class AtomicSimpleCPU(BaseCPU): icache_port = Port("Instruction Port") dcache_port = Port("Data Port") physmem_port = Port("Physical Memory Port") - _mem_ports = ['icache_port', 'dcache_port', 'physmem_port'] + _mem_ports = BaseCPU._mem_ports + \ + ['icache_port', 'dcache_port', 'physmem_port'] diff --git a/src/cpu/simple/TimingSimpleCPU.py b/src/cpu/simple/TimingSimpleCPU.py index 2fcde175c..7e777e813 100644 --- a/src/cpu/simple/TimingSimpleCPU.py +++ b/src/cpu/simple/TimingSimpleCPU.py @@ -38,4 +38,4 @@ class TimingSimpleCPU(BaseCPU): profile = Param.Latency('0ns', "trace the kernel stack") icache_port = Port("Instruction Port") dcache_port = Port("Data Port") - _mem_ports = ['icache_port', 'dcache_port'] + _mem_ports = BaseCPU._mem_ports + ['icache_port', 'dcache_port'] |