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Add architecture and tune includes for MicroBlaze. This covers architecture configuration as well as tune configuration and features. The Xilinx MicroBlaze architecture is a soft-core CPU architecture designed for implementation on Xilinx FPGAs. Because the CPU is a soft-core it can be configured differently depending on resource and performance constraints which affect the ABI and supported instructions. The architecture is also used in other Xilinx products where the core is implemented as part of fixed silicon (e.g. Xilinx ZynqMP). The default tune include 'tune-microblaze.inc' provides the baseline (no features enabled) tune configuration for a target machine. This is similar to other architectures such that the machine.conf includes a tune-*.inc. However due to the customizability configuration is specifically handled on a per machine basis. A machine should configure the available tune features by setting the available features directly by appending to the 'TUNE_FEATURES_tune-microblaze' variable. This tune configuration approach is preferred to avoid the definition of an otherwise large set of possible tune configurations for the available features (14 CPU versions and 11 feature configurations), which would otherwise require >1024 predefined tune configurations. (From OE-Core rev: 295a99a31ca147a271c0c76538c4fb27dbecab27) Signed-off-by: Nathan Rossi <nathan@nathanrossi.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
68 lines
2.8 KiB
PHP
68 lines
2.8 KiB
PHP
# MicroBlaze versions are defined as features, the features are setup to
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# conflict with other versions as well as unavailable features for particular
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# versions.
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#
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# Versions before v9.0 of MicroBlaze use a versioning scheme of "vX.YY.Z"
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# (where Z = [abc]). For v8.* versions of MicroBlaze the revision (Z) changes
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# did not affect ABI and are ignored by this tune configuration. Though this
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# format is expected by GCC including the revision, but this is defaulted to
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# ".a".
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#
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# Since v9.0 of MicroBlaze the revision (Z) part of versions was entirely
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# dropped and the version scheme was changed to "vX.Y".
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def microblaze_current_version(d, gcc = False):
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import re
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# find the current version, and convert it to major/minor integers
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version = None
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for t in (d.getVar("TUNE_FEATURES") or "").split():
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m = re.search("^v(\d+)\.(\d+)", t)
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if m:
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version = int(m.group(1)), int(m.group(2))
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break
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# format the version string in generic or GCC specific formats
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if version:
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if version[0] <= 8:
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return ("v%d.%02d" % version[0:2]) + (".a" if gcc else "")
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else:
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return "v%d.%d" % version[0:2]
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return ""
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# MicroBlaze versions
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TUNEVALID[v8.00] = "MicroBlaze version 8.00"
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TUNEVALID[v8.10] = "MicroBlaze version 8.10"
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TUNEVALID[v8.20] = "MicroBlaze version 8.20"
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TUNEVALID[v8.30] = "MicroBlaze version 8.30"
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TUNEVALID[v8.40] = "MicroBlaze version 8.40"
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TUNEVALID[v8.50] = "MicroBlaze version 8.50"
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TUNEVALID[v9.0] = "MicroBlaze version 9.0"
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TUNEVALID[v9.1] = "MicroBlaze version 9.1"
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TUNEVALID[v9.2] = "MicroBlaze version 9.2"
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TUNEVALID[v9.3] = "MicroBlaze version 9.3"
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TUNEVALID[v9.4] = "MicroBlaze version 9.4"
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TUNEVALID[v9.5] = "MicroBlaze version 9.5"
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TUNEVALID[v9.6] = "MicroBlaze version 9.6"
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TUNEVALID[v10.0] = "MicroBlaze version 10.0"
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# Version conflict matrix
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TUNECONFLICTS[v8.00] = ""
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TUNECONFLICTS[v8.10] = "v8.00"
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TUNECONFLICTS[v8.20] = "v8.00 v8.10"
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TUNECONFLICTS[v8.30] = "v8.00 v8.10 v8.20"
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TUNECONFLICTS[v8.40] = "v8.00 v8.10 v8.20 v8.30"
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TUNECONFLICTS[v8.50] = "v8.00 v8.10 v8.20 v8.30 v8.40"
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TUNECONFLICTS[v9.0] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50"
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TUNECONFLICTS[v9.1] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0"
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TUNECONFLICTS[v9.2] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1"
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TUNECONFLICTS[v9.3] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2"
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TUNECONFLICTS[v9.4] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3"
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TUNECONFLICTS[v9.5] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3 v9.4"
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TUNECONFLICTS[v9.6] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3 v9.4 v9.5"
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TUNECONFLICTS[v10.0] = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3 v9.4 v9.5 v9.6"
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# Version flags
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TUNE_CCARGS += "-mcpu=${@microblaze_current_version(d, True)}"
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MBPKGARCH_VERSION = "-${@microblaze_current_version(d)}"
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