diff options
Diffstat (limited to 'configs/ruby/Ruby.py')
| -rw-r--r-- | configs/ruby/Ruby.py | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/configs/ruby/Ruby.py b/configs/ruby/Ruby.py index 07a6632dd..71add4b61 100644 --- a/configs/ruby/Ruby.py +++ b/configs/ruby/Ruby.py @@ -27,6 +27,7 @@ # # Authors: Brad Beckmann +import math import m5 from m5.objects import * from m5.defines import buildEnv @@ -42,7 +43,8 @@ def define_options(parser): # ruby mapping options parser.add_option("--numa-high-bit", type="int", default=none, - help="high order address bit to use for numa mapping") + help="high order address bit to use for numa mapping. " \ + "0 = highest bit, not specified = lowest bit") # ruby sparse memory options parser.add_option("--use-map", action="store_true", default=False) @@ -88,14 +90,32 @@ def create_system(options, system, piobus = None, dma_devices = []): network = SimpleNetwork(topology = net_topology) # + # Loop through the directory controlers. # Determine the total memory size of the ruby system and verify it is equal # to physmem. However, if Ruby memory is using sparse memory in SE # mode, then the system should not back-up the memory state with # the Memory Vector and thus the memory size bytes should stay at 0. + # Also set the numa bits to the appropriate values. # total_mem_size = MemorySize('0B') + + dir_bits = int(math.log(options.num_dirs, 2)) + + if options.numa_high_bit: + numa_bit = options.numa_high_bit + else: + # if not specified, use the lowest bits above the block offest + if options.numa_high_bit == 0: + if dir_bits > 0: + # add 5 because bits 0-5 are the block offset + numa_bit = dir_bits + 5 + else: + numa_bit = 6 + for dir_cntrl in dir_cntrls: total_mem_size.value += dir_cntrl.directory.size.value + dir_cntrl.directory.numa_high_bit = numa_bit + physmem_size = long(system.physmem.range.second) - \ long(system.physmem.range.first) + 1 assert(total_mem_size.value == physmem_size) |