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Subject[PATCH v2 0/2] sparc64: Optimize fls, fls64 and __fls
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SPARC provides lzcnt instruction (with VIS3) which can be used to
optimize fls, fls64 and __fls functions. For the systems that supports
lzcnt instruction, we now do boot time patching to use sparc
optimized fls, fls64 and __fls functions.

v1->v2:
- Fixed delay slot issue pointed by Rob Gardner in patch 2/2.

Vijay Kumar (2):
sparc64: Define SPARC default fls and __fls
sparc64: Use lzcnt instruction for fls and __fls

arch/sparc/Makefile | 1 +
arch/sparc/include/asm/bitops_64.h | 7 +-
arch/sparc/kernel/head_64.S | 2 +
arch/sparc/lib/Makefile | 4 +
arch/sparc/lib/NG4fls.S | 31 +++++++++
arch/sparc/lib/NG4patch.S | 9 +++
arch/sparc/lib/fls.S | 126 ++++++++++++++++++++++++++++++++++++
7 files changed, 177 insertions(+), 3 deletions(-)
create mode 100644 arch/sparc/lib/NG4fls.S
create mode 100644 arch/sparc/lib/fls.S

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