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mem-ruby: Enable set size increase

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Add NUMBER_BITS_PER_SET environment variable to control
the size of the bitmask in Set.hh (default=64).
Necessary for configs which require >64 instances of a given
machine type. This can be set in the build_opts file, e.g.
by adding the following line:
NUMBER_BITS_PER_SET = <number>

Change-Id: I314a3cadca8ce975fcf4a60d9022494751688e88
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/18968
Reviewed-by: Tiago Mück <tiago.muck@arm.com>
Reviewed-by: Jason Lowe-Power <jason@lowepower.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Maintainer: Jason Lowe-Power <jason@lowepower.com>
Tested-by: kokoro <noreply+kokoro@google.com>
This commit is contained in:
John Alsop
2017-04-20 11:26:39 -04:00
parent 0c0cf48e30
commit f5cf6d5f5e
4 changed files with 9 additions and 5 deletions
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7
SConstruct
View File

@@ -1013,14 +1013,17 @@ sticky_vars.AddVariables(
EnumVariable('PROTOCOL', 'Coherence protocol for Ruby', 'None',
all_protocols),
EnumVariable('BACKTRACE_IMPL', 'Post-mortem dump implementation',
backtrace_impls[-1], backtrace_impls)
backtrace_impls[-1], backtrace_impls),
('NUMBER_BITS_PER_SET', 'Max elements in set (default 64)',
64),
)
# These variables get exported to #defines in config/*.hh (see src/SConscript).
export_vars += ['USE_FENV', 'SS_COMPATIBLE_FP', 'TARGET_ISA', 'TARGET_GPU_ISA',
'CP_ANNOTATE', 'USE_POSIX_CLOCK', 'USE_KVM', 'USE_TUNTAP',
'PROTOCOL', 'HAVE_PROTOBUF', 'HAVE_VALGRIND',
'HAVE_PERF_ATTR_EXCLUDE_HOST', 'USE_PNG']
'HAVE_PERF_ATTR_EXCLUDE_HOST', 'USE_PNG',
'NUMBER_BITS_PER_SET']
###################################################
#