linux-kernel - [PATCH 0/3] arm64: lib: improve copy performance

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Message-ID: <20210323073432.3422227-1-yangyingliang@huawei.com>
Date:   Tue, 23 Mar 2021 15:34:29 +0800
From:   Yang Yingliang <yangyingliang@...wei.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <catalin.marinas@....com>, <will@...nel.org>,
        <guohanjun@...wei.com>, <yangyingliang@...wei.com>
Subject: [PATCH 0/3] arm64: lib: improve copy performance

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(-)

-- 
2.25.1