diff options
Diffstat (limited to 'include/sbi/riscv_atomic.h')
| -rw-r--r-- | include/sbi/riscv_atomic.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/sbi/riscv_atomic.h b/include/sbi/riscv_atomic.h index 775cd6f..0fea6bd 100644 --- a/include/sbi/riscv_atomic.h +++ b/include/sbi/riscv_atomic.h @@ -34,5 +34,33 @@ long arch_atomic_xchg(atomic_t *atom, long newval); unsigned int atomic_raw_xchg_uint(volatile unsigned int *ptr, unsigned int newval); +/** + * Set a bit in an atomic variable and return the new value. + * @nr : Bit to set. + * @atom: atomic variable to modify + */ +int atomic_set_bit(int nr, atomic_t *atom); + +/** + * Clear a bit in an atomic variable and return the new value. + * @nr : Bit to set. + * @atom: atomic variable to modify + */ + +int atomic_clear_bit(int nr, atomic_t *atom); + +/** + * Set a bit in any address and return the new value . + * @nr : Bit to set. + * @addr: Address to modify + */ +int atomic_raw_set_bit(int nr, volatile unsigned long *addr); + +/** + * Clear a bit in any address and return the new value . + * @nr : Bit to set. + * @addr: Address to modify + */ +int atomic_raw_clear_bit(int nr, volatile unsigned long *addr); #endif |