4 files changed, 161 insertions, 0 deletions

diff --git a/meta/conf/machine/include/microblaze/arch-microblaze.inc b/meta/conf/machine/include/microblaze/arch-microblaze.inc
new file mode 100644
index 0000000000..eab7171cb2
--- /dev/null
+++ b/meta/conf/machine/include/microblaze/arch-microblaze.inc
@@ -0,0 +1,53 @@
+# MicroBlaze architecture tune feature configuration
+
+# Architecture feature and override
+TUNEVALID[microblaze] = "MicroBlaze"
+MACHINEOVERRIDES =. "${@bb.utils.contains("TUNE_FEATURES", "microblaze", "microblaze:", "", d)}"
+
+# Endian
+TUNEVALID[bigendian] = "Use Microblaze Big Endian"
+TUNECONFLICTS[bigendian] += "v10.0"
+
+MBPKGARCH_ENDIAN = "${@bb.utils.contains("TUNE_FEATURES", "bigendian", "eb", "el", d)}"
+
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "bigendian", "-mbig-endian", "-mlittle-endian", d)}"
+
+# General features
+TUNEVALID[barrel-shift] = "Enable Hardware Barrel Shifter"
+TUNEVALID[pattern-compare] = "Enable Pattern Compare Instructions"
+TUNEVALID[reorder] = "Enable Reorder Instructions"
+TUNECONFLICTS[reorder] += "v8.00 v8.10 v8.20"
+
+# Core configuration tune optimizations
+TUNEVALID[frequency-optimized] = "Enabling tuning for frequency optimized core (AREA_OPTIMIZED_2)"
+TUNECONFLICTS[frequency-optimized] += "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3 v9.4 v9.5 v9.6"
+
+# Feature compiler args
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "barrel-shift", "-mxl-barrel-shift", "-mno-xl-barrel-shift", d)}"
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "pattern-compare", "-mxl-pattern-compare", "-mno-xl-pattern-compare", d)}"
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "frequency-optimized", "-mxl-frequency", "", d)}"
+
+# Disable reorder for v8.30 if pattern-compare is not enabled
+TUNE_CCARGS += "${@bb.utils.contains("TUNE_FEATURES", "reorder", \
+        bb.utils.contains("TUNE_FEATURES", "v8.30", \
+            bb.utils.contains("TUNE_FEATURES", "pattern-compare", \
+                "-mxl-reorder", "-mno-xl-reorder", d), \
+            "-mxl-reorder", d), "-mno-xl-reorder", d)}"
+
+# Feature package architecture formatting
+MBPKGARCH_TUNE = ""
+MBPKGARCH_TUNE .= "${@bb.utils.contains("TUNE_FEATURES", "barrel-shift", "-bs", "", d)}"
+MBPKGARCH_TUNE .= "${@bb.utils.contains("TUNE_FEATURES", "pattern-compare", "-cmp", "", d)}"
+MBPKGARCH_TUNE .= "${@bb.utils.contains("TUNE_FEATURES", "reorder", "-re", "", d)}"
+MBPKGARCH_TUNE .= "${@bb.utils.contains("TUNE_FEATURES", "frequency-optimized", "-fo", "", d)}"
+
+# Additional features
+require conf/machine/include/microblaze/feature-microblaze-versions.inc
+require conf/machine/include/microblaze/feature-microblaze-math.inc
+
+# Architecture name, either 'microblazeeb' or 'microblazeel' depending on endianess
+TUNE_ARCH = "microblaze${@bb.utils.contains("TUNE_FEATURES", "bigendian", "eb", "el", d)}"
+
+# Package Architecture formatting
+TUNE_PKGARCH = "microblaze${MBPKGARCH_ENDIAN}${MBPKGARCH_VERSION}${MBPKGARCH_TUNE}${MBPKGARCH_MATH}"
+
diff --git a/meta/conf/machine/include/microblaze/feature-microblaze-math.inc b/meta/conf/machine/include/microblaze/feature-microblaze-math.inc
new file mode 100644
index 0000000000..a31516659c
--- /dev/null
+++ b/meta/conf/machine/include/microblaze/feature-microblaze-math.inc
@@ -0,0 +1,33 @@
+# This include describes the math features (integer and floating point) that
+# are available for the MicroBlaze ISA
+
+TUNEVALID[multiply-low] = "Hardware multipler with 32 bit result"
+TUNEVALID[multiply-high] = "Hardware multipler with 64 bit result"
+TUNEVALID[divide-hard] = "Hardware divider"
+TUNEVALID[fpu-soft] = "Software FPU"
+TUNEVALID[fpu-hard] = "Hardware FPU in basic mode"
+TUNEVALID[fpu-hard-extended] = "Hardware FPU in extended mode (conversion and square root instructions)"
+
+TUNECONFLICTS[fpu-soft] = "fpu-hard fpu-hard-extended"
+TUNECONFLICTS[fpu-hard] = "fpu-soft"
+TUNECONFLICTS[fpu-hard-extended] = "fpu-soft"
+
+# Compiler args
+TUNE_CCARGS += "${@bb.utils.contains_any('TUNE_FEATURES', ['multiply-low', 'multiply-high'], '-mno-xl-soft-mul', '-mxl-soft-mul', d)}"
+TUNE_CCARGS += "${@bb.utils.contains('TUNE_FEATURES', 'multiply-high', '-mxl-multiply-high', '', d)}"
+
+TUNE_CCARGS += "${@bb.utils.contains('TUNE_FEATURES', 'divide-hard', '-mno-xl-soft-div', '-mxl-soft-div', d)}"
+
+TUNE_CCARGS += "${@bb.utils.contains('TUNE_FEATURES', 'fpu-soft', '', '', d)}"
+TUNE_CCARGS += "${@bb.utils.contains_any('TUNE_FEATURES', ['fpu-hard', 'fpu-hard-extended'], '-mhard-float', '', d)}"
+TUNE_CCARGS += "${@bb.utils.contains('TUNE_FEATURES', 'fpu-hard-extended', '-mxl-float-convert -mxl-float-sqrt', '', d)}"
+
+# Set target fpu (bitbake known target) to soft or hard (basic or extended)
+TARGET_FPU = "${@bb.utils.contains_any('TUNE_FEATURES', 'fpu-hard fpu-hard-extended', 'fpu-hard', 'fpu-soft', d)}"
+
+# Package Architecture formatting
+MBPKGARCH_MATH = ""
+MBPKGARCH_MATH .= "${@bb.utils.contains('TUNE_FEATURES', 'multiply-high', '-mh', bb.utils.contains('TUNE_FEATURES', 'multiply-low', '-ml', '', d), d)}"
+MBPKGARCH_MATH .= "${@bb.utils.contains('TUNE_FEATURES', 'divide-hard', '-div', '', d)}"
+MBPKGARCH_MATH .= "${@bb.utils.contains('TUNE_FEATURES', 'fpu-hard-extended', '-fe', bb.utils.contains('TUNE_FEATURES', 'fpu-hard', '-fb', '', d), d)}"
+
diff --git a/meta/conf/machine/include/microblaze/feature-microblaze-versions.inc b/meta/conf/machine/include/microblaze/feature-microblaze-versions.inc
new file mode 100644
index 0000000000..955674fff9
--- /dev/null
+++ b/meta/conf/machine/include/microblaze/feature-microblaze-versions.inc
@@ -0,0 +1,67 @@
+# MicroBlaze versions are defined as features, the features are setup to
+# conflict with other versions as well as unavailable features for particular
+# versions.
+#
+# Versions before v9.0 of MicroBlaze use a versioning scheme of "vX.YY.Z"
+# (where Z = [abc]). For v8.* versions of MicroBlaze the revision (Z) changes
+# did not affect ABI and are ignored by this tune configuration. Though this
+# format is expected by GCC including the revision, but this is defaulted to
+# ".a".
+#
+# Since v9.0 of MicroBlaze the revision (Z) part of versions was entirely
+# dropped and the version scheme was changed to "vX.Y".
+
+def microblaze_current_version(d, gcc = False):
+    import re
+    # find the current version, and convert it to major/minor integers
+    version = None
+    for t in (d.getVar("TUNE_FEATURES") or "").split():
+        m = re.search("^v(\d+)\.(\d+)", t)
+        if m:
+            version = int(m.group(1)), int(m.group(2))
+            break
+
+    # format the version string in generic or GCC specific formats
+    if version:
+        if version[0] <= 8:
+            return ("v%d.%02d" % version[0:2]) + (".a" if gcc else "")
+        else:
+            return "v%d.%d" % version[0:2]
+    return ""
+
+# MicroBlaze versions
+TUNEVALID[v8.00] = "MicroBlaze version 8.00"
+TUNEVALID[v8.10] = "MicroBlaze version 8.10"
+TUNEVALID[v8.20] = "MicroBlaze version 8.20"
+TUNEVALID[v8.30] = "MicroBlaze version 8.30"
+TUNEVALID[v8.40] = "MicroBlaze version 8.40"
+TUNEVALID[v8.50] = "MicroBlaze version 8.50"
+TUNEVALID[v9.0]  = "MicroBlaze version 9.0"
+TUNEVALID[v9.1]  = "MicroBlaze version 9.1"
+TUNEVALID[v9.2]  = "MicroBlaze version 9.2"
+TUNEVALID[v9.3]  = "MicroBlaze version 9.3"
+TUNEVALID[v9.4]  = "MicroBlaze version 9.4"
+TUNEVALID[v9.5]  = "MicroBlaze version 9.5"
+TUNEVALID[v9.6]  = "MicroBlaze version 9.6"
+TUNEVALID[v10.0] = "MicroBlaze version 10.0"
+
+# Version conflict matrix
+TUNECONFLICTS[v8.00] = ""
+TUNECONFLICTS[v8.10] = "v8.00"
+TUNECONFLICTS[v8.20] = "v8.00 v8.10"
+TUNECONFLICTS[v8.30] = "v8.00 v8.10 v8.20"
+TUNECONFLICTS[v8.40] = "v8.00 v8.10 v8.20 v8.30"
+TUNECONFLICTS[v8.50] = "v8.00 v8.10 v8.20 v8.30 v8.40"
+TUNECONFLICTS[v9.0]  = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50"
+TUNECONFLICTS[v9.1]  = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0"
+TUNECONFLICTS[v9.2]  = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1"
+TUNECONFLICTS[v9.3]  = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2"
+TUNECONFLICTS[v9.4]  = "v8.00 v8.10 v8.20 v8.30 v8.40 v8.50 v9.0 v9.1 v9.2 v9.3"
+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"
+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"
+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"
+
+# Version flags
+TUNE_CCARGS += "-mcpu=${@microblaze_current_version(d, True)}"
+MBPKGARCH_VERSION = "-${@microblaze_current_version(d)}"
+
diff --git a/meta/conf/machine/include/tune-microblaze.inc b/meta/conf/machine/include/tune-microblaze.inc
new file mode 100644
index 0000000000..41f0afe668
--- /dev/null
+++ b/meta/conf/machine/include/tune-microblaze.inc
@@ -0,0 +1,8 @@
+DEFAULTTUNE ?= "microblaze"
+
+require conf/machine/include/microblaze/arch-microblaze.inc
+
+AVAILTUNES += "microblaze"
+TUNE_FEATURES_tune-microblaze = "microblaze"
+PACKAGE_EXTRA_ARCHS_tune-microblaze = "${TUNE_PKGARCH}"
+