As of today we enable unaligned access unconditionally on ARCv2. Lets move it under Kconfig option and use it actively in SW if it is enabled.
While I'm at it fix and optimise ARCv2 memcpy implementaion. Changes v1->v2: * Rebase onto last ARC changes. * Don't add dummy symbol to ARC Kconfig * Print info about unaligned access status in kernel log Eugeniy Paltsev (5): ARCv2: lib: memcpy: fix doing prefetchw outside of buffer ARCv2: introduce unaligned access under a Kconfig option ARCv2: use unaligned access in SW ARCv2: LIB: MEMCPY: fixed and optimised routine ARC: boot log: print unaligned memory access details arch/arc/Kconfig | 9 +++++++ arch/arc/Makefile | 6 +++++ arch/arc/include/asm/irqflags-arcv2.h | 4 +++ arch/arc/kernel/head.S | 14 +++++++---- arch/arc/kernel/intc-arcv2.c | 2 +- arch/arc/kernel/setup.c | 13 +++++++--- arch/arc/lib/Makefile | 8 +++++- arch/arc/lib/memcpy-archs-unaligned.S | 46 +++++++++++++++++++++++++++++++++++ arch/arc/lib/memcpy-archs.S | 14 ----------- 9 files changed, 92 insertions(+), 24 deletions(-) create mode 100644 arch/arc/lib/memcpy-archs-unaligned.S -- 2.14.5 _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc
