diff options
| author | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-20 10:14:08 -0700 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-05-20 10:14:08 -0700 |
| commit | 19bc59bbeddf07360ef8bceb420f95712977a32f (patch) | |
| tree | d4ae94a2d92a43d9b9c887d63eb23229d37a4def /arch/openrisc/include/asm/spinlock.h | |
| parent | 83a7a614ce584c469bf8abfc2cd539701bd7d4e9 (diff) | |
| parent | 9282d0996936c5fbf877c0d096a3feb456c878ad (diff) | |
| download | linux-19bc59bbeddf07360ef8bceb420f95712977a32f.tar.bz2 | |
Merge tag 'generic-ticket-spinlocks-v6' into for-next
asm-generic: New generic ticket-based spinlock
This contains a new ticket-based spinlock that uses only generic
atomics and doesn't require as much from the memory system as qspinlock
does in order to be fair. It also includes a bit of documentation about
the qspinlock and qrwlock fairness requirements.
This will soon be used by a handful of architectures that don't meet the
qspinlock requirements.
* tag 'generic-ticket-spinlocks-v6':
csky: Move to generic ticket-spinlock
RISC-V: Move to queued RW locks
RISC-V: Move to generic spinlocks
openrisc: Move to ticket-spinlock
asm-generic: qrwlock: Document the spinlock fairness requirements
asm-generic: qspinlock: Indicate the use of mixed-size atomics
asm-generic: ticket-lock: New generic ticket-based spinlock
Diffstat (limited to 'arch/openrisc/include/asm/spinlock.h')
| -rw-r--r-- | arch/openrisc/include/asm/spinlock.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/openrisc/include/asm/spinlock.h b/arch/openrisc/include/asm/spinlock.h deleted file mode 100644 index 264944a71535..000000000000 --- a/arch/openrisc/include/asm/spinlock.h +++ /dev/null @@ -1,27 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-or-later */ -/* - * OpenRISC Linux - * - * Linux architectural port borrowing liberally from similar works of - * others. All original copyrights apply as per the original source - * declaration. - * - * OpenRISC implementation: - * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> - * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> - * et al. - */ - -#ifndef __ASM_OPENRISC_SPINLOCK_H -#define __ASM_OPENRISC_SPINLOCK_H - -#include <asm/qspinlock.h> - -#include <asm/qrwlock.h> - -#define arch_spin_relax(lock) cpu_relax() -#define arch_read_relax(lock) cpu_relax() -#define arch_write_relax(lock) cpu_relax() - - -#endif |