hi all,
i am quite confused about the mechanism of parameters configuration bw .py
and .cc files...
i.e. in src/mem/physical.cc
PhysicalMemory::PhysicalMemory(const Params *p)
: MemObject(p), pmemAddr(NULL), lat(p->latency)
{
if (params()->range.size() % TheISA::PageBytes != 0)
panic("Memory Size not divisible by page size\n");
int map_flags = MAP_ANON | MAP_PRIVATE;
pmemAddr = (uint8_t *)mmap(NULL, params()->range.size(),
PROT_READ | PROT_WRITE, map_flags, -1, 0);
if (pmemAddr == (void *)MAP_FAILED) {
perror("mmap");
fatal("Could not mmap!\n");
}
...
}
i see it is a process to accept some parameters from src/mem/physicalMemory.py,
yet i don't know how to...
class PhysicalMemory(MemObject): type = 'PhysicalMemory'
port = VectorPort("the access port")
range = Param.AddrRange(AddrRange('128MB'), "Device Address")
file = Param.String('', "memory mapped file")
latency = Param.Latency('1t', "latency of an access")
zero = Param.Bool(False, "zero initialize memory")
i haven't find the declaration of PhysicalMemoryParams and what 's the
result of this function as follows?
PhysicalMemory *
PhysicalMemoryParams::create()
{
return new PhysicalMemory(this);
}
can anyone plz show me the path of the maze? thanks a lot...
--
Regards
Dengning
School Of Computer Science and Technology
Beijng Institute of Technology, China, 100081
[EMAIL PROTECTED]
[EMAIL PROTECTED]
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