From: Sam Ravnborg <s...@ravnborg.org> Date: Wed, 27 Sep 2017 21:56:37 +0200
> Hi Vijay. > > On Wed, Sep 27, 2017 at 01:25:26PM -0600, Vijay Kumar wrote: >> For T4 and above, patch fls and __fls functions >> at the boot time to use lzcnt instruction. >> >> Signed-off-by: Vijay Kumar <vijay.ac.ku...@oracle.com> >> Reviewed-by: Babu Moger <babu.mo...@oracle.com> >> --- >> arch/sparc/Makefile | 1 + >> arch/sparc/kernel/head_64.S | 2 ++ >> arch/sparc/lib/Makefile | 3 +++ >> arch/sparc/lib/NG4fls.S | 30 ++++++++++++++++++++++++++++++ >> arch/sparc/lib/NG4patch.S | 9 +++++++++ >> 5 files changed, 45 insertions(+), 0 deletions(-) >> >> diff --git a/arch/sparc/Makefile b/arch/sparc/Makefile >> index 8496a07..0763cd8 100644 >> --- a/arch/sparc/Makefile >> +++ b/arch/sparc/Makefile >> @@ -48,6 +48,7 @@ KBUILD_CFLAGS += -ffixed-g4 -ffixed-g5 -fcall-used-g7 >> -Wno-sign-compare >> KBUILD_CFLAGS += -Wa,--undeclared-regs >> KBUILD_CFLAGS += $(call cc-option,-mtune=ultrasparc3) >> KBUILD_AFLAGS += -m64 -mcpu=ultrasparc -Wa,--undeclared-regs >> +KBUILD_AFLAGS += -Wa,-Asparc4 > This change is not justified anywhere?? It also will likely break with older tools.
