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| author | Lena Olson <leolson@google.com> | 2017-02-05 17:20:34 -0600 |
|---|---|---|
| committer | Jason Lowe-Power <jason@lowepower.com> | 2017-03-09 11:20:05 -0600 |
| commit | b2669a7875526be1036cfb5c451d210213758c22 (patch) | |
| tree | fe7ab6602c1334f5a7270a13ec059f2255baa5db /src/mem/ruby/structures/DirectoryMemory.py | |
| parent | 620bf51ae7bcbcd373d7d7a5179d063af41dd0b1 (diff) | |
| download | gem5-b2669a7875526be1036cfb5c451d210213758c22.tar.xz | |
ruby: fix MOESI_hammer directory to work with > 3GB memory
The MOESI_hammer directory assumes a contiguous address space, but X86
has an IO gap from 3-4GB. This patch allows the directory to work with
more than 3GB of memory on X86.
Assumptions: the physical address space (range of possible physical
addresses) is 0-XGB when X <= 3GB, and 0-(X+1)GB when X > 3GB. If there
is no IO gap this patch should still work.
Change-Id: I5453a09e953643cada2c096a91d339a3676f55ee
Reviewed-on: https://gem5-review.googlesource.com/2169
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Diffstat (limited to 'src/mem/ruby/structures/DirectoryMemory.py')
| -rw-r--r-- | src/mem/ruby/structures/DirectoryMemory.py | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mem/ruby/structures/DirectoryMemory.py b/src/mem/ruby/structures/DirectoryMemory.py index bb9765bdb..2518380b2 100644 --- a/src/mem/ruby/structures/DirectoryMemory.py +++ b/src/mem/ruby/structures/DirectoryMemory.py @@ -40,3 +40,4 @@ class RubyDirectoryMemory(SimObject): # the default value of the numa high bit is specified in the command line # option and must be passed into the directory memory sim object numa_high_bit = Param.Int("numa high bit") + system = Param.System(Parent.any, "system object") |