| 1 | /* SPDX-License-Identifier: GPL-2.0 */ | 
|---|---|
| 2 | #ifndef _ASM_X86_RQSPINLOCK_H | 
| 3 | #define _ASM_X86_RQSPINLOCK_H | 
| 4 | |
| 5 | #include <asm/paravirt.h> | 
| 6 | |
| 7 | #ifdef CONFIG_PARAVIRT | 
| 8 | DECLARE_STATIC_KEY_FALSE(virt_spin_lock_key); | 
| 9 | |
| 10 | #define resilient_virt_spin_lock_enabled resilient_virt_spin_lock_enabled | 
| 11 | static __always_inline bool resilient_virt_spin_lock_enabled(void) | 
| 12 | { | 
| 13 | return static_branch_likely(&virt_spin_lock_key); | 
| 14 | } | 
| 15 | |
| 16 | #ifdef CONFIG_QUEUED_SPINLOCKS | 
| 17 | typedef struct qspinlock rqspinlock_t; | 
| 18 | #else | 
| 19 | typedef struct rqspinlock rqspinlock_t; | 
| 20 | #endif | 
| 21 | extern int resilient_tas_spin_lock(rqspinlock_t *lock); | 
| 22 | |
| 23 | #define resilient_virt_spin_lock resilient_virt_spin_lock | 
| 24 | static inline int resilient_virt_spin_lock(rqspinlock_t *lock) | 
| 25 | { | 
| 26 | return resilient_tas_spin_lock(lock); | 
| 27 | } | 
| 28 | |
| 29 | #endif /* CONFIG_PARAVIRT */ | 
| 30 | |
| 31 | #include <asm-generic/rqspinlock.h> | 
| 32 | |
| 33 | #endif /* _ASM_X86_RQSPINLOCK_H */ | 
| 34 | 
