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-rw-r--r--meta/conf/machine/include/microblaze/feature-microblaze-math.inc33
1 files changed, 33 insertions, 0 deletions
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)}"
+