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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_RISCV_SPINLOCK_H
#define __ASM_RISCV_SPINLOCK_H
#ifdef CONFIG_QUEUED_SPINLOCKS
#define _Q_PENDING_LOOPS (1 << 9)
#endif
#ifdef CONFIG_RISCV_COMBO_SPINLOCKS
#define __no_arch_spinlock_redefine
#include <asm/ticket_spinlock.h>
#include <asm/qspinlock.h>
#include <asm/jump_label.h>
/*
* TODO: Use an alternative instead of a static key when we are able to parse
* the extensions string earlier in the boot process.
*/
DECLARE_STATIC_KEY_TRUE(qspinlock_key);
#define SPINLOCK_BASE_DECLARE(op, type, type_lock) \
static __always_inline type arch_spin_##op(type_lock lock) \
{ \
if (static_branch_unlikely(&qspinlock_key)) \
return queued_spin_##op(lock); \
return ticket_spin_##op(lock); \
}
SPINLOCK_BASE_DECLARE(lock, void, arch_spinlock_t *)
SPINLOCK_BASE_DECLARE(unlock, void, arch_spinlock_t *)
SPINLOCK_BASE_DECLARE(is_locked, int, arch_spinlock_t *)
SPINLOCK_BASE_DECLARE(is_contended, int, arch_spinlock_t *)
SPINLOCK_BASE_DECLARE(trylock, bool, arch_spinlock_t *)
SPINLOCK_BASE_DECLARE(value_unlocked, int, arch_spinlock_t)
#elif defined(CONFIG_RISCV_QUEUED_SPINLOCKS)
#include <asm/qspinlock.h>
#else
#include <asm/ticket_spinlock.h>
#endif
#include <asm/qrwlock.h>
#endif /* __ASM_RISCV_SPINLOCK_H */
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