[0/3] arm64: lib: improve copy performance

Message

Yang Yingliang March 23, 2021, 7:34 a.m. UTC

This patchset reduce instructions in copy_template.S
to improve the performance of copy memory, when size
is ge 64 bytes.

Yang Yingliang (3):
  arm64: lib: introduce ldp2/stp2 macro
  arm64: lib: improve copy performance when size is ge 128 bytes
  arm64: lib: improve copy performance when size is less than 128 and ge
    64 bytes

 arch/arm64/include/asm/asm-uaccess.h | 16 +++++++++
 arch/arm64/lib/copy_from_user.S      |  8 +++++
 arch/arm64/lib/copy_in_user.S        |  8 +++++
 arch/arm64/lib/copy_template.S       | 54 +++++++++++++++-------------
 arch/arm64/lib/copy_to_user.S        |  8 +++++
 arch/arm64/lib/memcpy.S              |  8 +++++
 6 files changed, 78 insertions(+), 24 deletions(-)