[Feature] add GA346 baseline version
Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/arch/sparc/lib/NG4fls.S b/src/kernel/linux/v4.19/arch/sparc/lib/NG4fls.S
new file mode 100644
index 0000000..2d0991e
--- /dev/null
+++ b/src/kernel/linux/v4.19/arch/sparc/lib/NG4fls.S
@@ -0,0 +1,30 @@
+/* NG4fls.S: SPARC optimized fls and __fls for T4 and above.
+ *
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ */
+
+#include <linux/linkage.h>
+
+#define LZCNT_O0_G2 \
+ .word 0x85b002e8
+
+ .text
+ .register %g2, #scratch
+ .register %g3, #scratch
+
+ENTRY(NG4fls)
+ LZCNT_O0_G2 !lzcnt %o0, %g2
+ mov 64, %g3
+ retl
+ sub %g3, %g2, %o0
+ENDPROC(NG4fls)
+
+ENTRY(__NG4fls)
+ brz,pn %o0, 1f
+ LZCNT_O0_G2 !lzcnt %o0, %g2
+ mov 63, %g3
+ sub %g3, %g2, %o0
+1:
+ retl
+ nop
+ENDPROC(__NG4fls)