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authorNikos Nikoleris <nikos.nikoleris@arm.com>2018-02-12 15:53:47 +0000
committerNikos Nikoleris <nikos.nikoleris@arm.com>2018-03-20 21:41:45 +0000
commit68af229490fc811aebddf68b3e2e09e63a5fa475 (patch)
tree2a9a9cf0c94c2f490e78b30c2498460e535f3a39 /configs/ruby/MI_example.py
parentfe187de9bd1aa479ab6cd198522bfd118d0d50ec (diff)
downloadgem5-68af229490fc811aebddf68b3e2e09e63a5fa475.tar.xz
arch-arm, configs: Treat the bootloader rom as cacheable memory
Prior to this changeset the bootloader rom (instantiated as a SimpleMemory) in ruby Arm systems was treated as an IO device and it was fronted by a DMA controller. This changeset moves the bootloader rom and adds it to the system as another memory with a dedicated directory controller. Change-Id: I094fed031cdef7f77a939d94f948d967b349b7e0 Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Reviewed-on: https://gem5-review.googlesource.com/8741 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.com>
Diffstat (limited to 'configs/ruby/MI_example.py')
-rw-r--r--configs/ruby/MI_example.py12
1 files changed, 8 insertions, 4 deletions
diff --git a/configs/ruby/MI_example.py b/configs/ruby/MI_example.py
index eb881e55c..c92bb2036 100644
--- a/configs/ruby/MI_example.py
+++ b/configs/ruby/MI_example.py
@@ -42,7 +42,8 @@ class L1Cache(RubyCache): pass
def define_options(parser):
return
-def create_system(options, full_system, system, dma_ports, ruby_system):
+def create_system(options, full_system, system, dma_ports, bootmem,
+ ruby_system):
if buildEnv['PROTOCOL'] != 'MI_example':
panic("This script requires the MI_example protocol to be built.")
@@ -125,8 +126,11 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
clk_domain=ruby_system.clk_domain,
clk_divider=3)
- dir_cntrl_nodes = create_directories(options, system.mem_ranges,
- ruby_system)
+ mem_dir_cntrl_nodes, rom_dir_cntrl_node = create_directories(
+ options, system.mem_ranges, bootmem, ruby_system, system)
+ dir_cntrl_nodes = mem_dir_cntrl_nodes[:]
+ if rom_dir_cntrl_node is not None:
+ dir_cntrl_nodes.append(rom_dir_cntrl_node)
for dir_cntrl in dir_cntrl_nodes:
# Connect the directory controllers and the network
dir_cntrl.requestToDir = MessageBuffer(ordered = True)
@@ -188,4 +192,4 @@ def create_system(options, full_system, system, dma_ports, ruby_system):
ruby_system.network.number_of_virtual_networks = 5
topology = create_topology(all_cntrls, options)
- return (cpu_sequencers, dir_cntrl_nodes, topology)
+ return (cpu_sequencers, mem_dir_cntrl_nodes, topology)