spinlock arm64

Rather than wait until we observe the lock being free (which might never happen), we can also return from spin_unlock_wait if we observe that the lock is now held by somebody else, which implies that it was unlocked but we just missed seeing it in that st

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  • blob: 43a66881fd57c1b753639aee87958a6b347d4675 [] [] [] /* ...
    archarm64includeasmspinlock.h - kernelmsm - Git at ...
    https://android.googlesource.c
  • Contribute to arm64-linux development by creating an account on GitHub.
    arm64-linuxspinlocks.txt at master · Broadcomarm64-linux · GitHub
    https://github.com
  • 2014年9月6日 - Aaron Durbin has uploaded a new change for review. https://chromium-review.go...
    arm64: add spinlock implementation [chromiumosthird_partycoreboot ...
    https://groups.google.com
  • ARM64 has defined the spinlock for init_mm's context, so need initialize the spinlock ...
    arm64: initialize spinlock for init_mm's context · ...
    https://github.com
  • The patch of Jan Glauber enables queued spinlocks on arm64. I rebased it on latest kernel ...
    arm64: queued spinlocks and rw-locks [LWN.net]
    https://lwn.net
  • 2016年9月1日 - It seems to be quite confusing to see atomic load not being paired with atomi...
    arm64: spinlock: clarify implementation details of arch_spin_lock ...
    https://patchwork.kernel.org
  • Rather than wait until we observe the lock being free (which might never happen), we can a...
    arm64: spinlock: Ensure forward-progress in spin_unlock_wait ...
    https://github.com
  • 2016年9月5日 - smp_mb__before_spinlock() is intended to upgrade a spin_lock() operation to a...
    arm64: spinlocks: implement smp_mb__before_spinlock() as smp_mb ...
    https://patchwork.kernel.org
  • ACCESS_ONCE does not work reliably on non-scalar types. For example gcc 4.6 and 4.7 might ...
    arm64spinlock: Replace ACCESS_ONCE READ_ONCE (af2e7aae) · ...
    https://gitlab.com
  • In the Linux kernel, arch_spin_lock() is implemented as follows: static inline void arch_s...
    assembly - How is a spin lock woken up in LinuxARM64? - Sta ...
    https://stackoverflow.com
  • 2015年8月28日 - When locking, the line. " ldaxrh %w2, %4-n". after the wfe perform...
    assembly - How is a spin lock woken up in LinuxARM64? - Stack ...
    https://stackoverflow.com
  • 2014年10月10日 - hi experts,. ARMv7 spin-lock use 'WFE' instruction to wait for lock...
    How to understand ARMv8 'SEVL' instruction in spin-lock? - Processor ...
    https://community.arm.com
  • Boqun Feng reported a rather nasty ordering issue with spin_unlock_wait on architectures i...
    Linux-Kernel Archive: [PATCH] arm64: spinlock: serialise ...
    http://lkml.iu.edu
  • #ifndef __ASM_SPINLOCK_H #define __ASM_SPINLOCK_H #include <asm/lse.h> #include <...
    linuxarcharm64includeasmspinlock.h - Elixir - Free Electrons
    http://elixir.free-electrons.c
  • 2、数据结构 根据第二章的分析,我们可以基本可以推断出spin lock的实现。首先定义一个spinlock_t的数据类型,其本质上是一个整数值(对该数值的操作需要保证原子性),该...
    Linux内核同步机制之(四):spin lock
    http://www.wowotech.net
  • 2015年4月22日 - 由于spin lock是architecture dependent代码,因此,我们在第四章讨论了ARM32和ARM64上的实现细节。 注:本文需要进程...
    Linux内核同步机制之(四):spin lock - 蜗窝科技
    http://www.wowotech.net
  • I am trying to use early printk for arm64 architecture but there is no such functionality....
    Newest 'arm64' Questions - Stack Overflow
    https://stackoverflow.com
  • Prior spinlock code solely used load-acquire and store-release semantics to ensure orderin...
    [RFC] arm64: Enforce observed order for spinlock and data - ...
    https://groups.google.com
  • 2016年6月8日 - Commit d86b8da04dfa ("arm64: spinlock: serialise spin_unlock_wait agains...
    [v2,23] arm64: spinlock: fix spin_unlock_wait for LSE atomics ...
    https://patchwork.kernel.org
  • Rather than wait until we observe the lock being free, we can also return from spin_unlock...
    [v2,33] arm64: spinlock: use lock->owner to optimise ... - Patchwork
    https://patchwork.kernel.org