diff options
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/include/asm/atomic.h | 8 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/spinlock.h | 5 | ||||
| -rw-r--r-- | arch/blackfin/kernel/bfin_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf561/atomic.S | 43 | ||||
| -rw-r--r-- | arch/blackfin/mach-bf609/boards/ezkit.c | 2 |
5 files changed, 43 insertions, 16 deletions
diff --git a/arch/blackfin/include/asm/atomic.h b/arch/blackfin/include/asm/atomic.h index 1c1c42330c99..63c7deceeeb6 100644 --- a/arch/blackfin/include/asm/atomic.h +++ b/arch/blackfin/include/asm/atomic.h @@ -17,6 +17,7 @@ asmlinkage int __raw_uncached_fetch_asm(const volatile int *ptr); asmlinkage int __raw_atomic_add_asm(volatile int *ptr, int value); +asmlinkage int __raw_atomic_xadd_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_and_asm(volatile int *ptr, int value); asmlinkage int __raw_atomic_or_asm(volatile int *ptr, int value); @@ -28,10 +29,17 @@ asmlinkage int __raw_atomic_test_asm(const volatile int *ptr, int value); #define atomic_add_return(i, v) __raw_atomic_add_asm(&(v)->counter, i) #define atomic_sub_return(i, v) __raw_atomic_add_asm(&(v)->counter, -(i)) +#define atomic_fetch_add(i, v) __raw_atomic_xadd_asm(&(v)->counter, i) +#define atomic_fetch_sub(i, v) __raw_atomic_xadd_asm(&(v)->counter, -(i)) + #define atomic_or(i, v) (void)__raw_atomic_or_asm(&(v)->counter, i) #define atomic_and(i, v) (void)__raw_atomic_and_asm(&(v)->counter, i) #define atomic_xor(i, v) (void)__raw_atomic_xor_asm(&(v)->counter, i) +#define atomic_fetch_or(i, v) __raw_atomic_or_asm(&(v)->counter, i) +#define atomic_fetch_and(i, v) __raw_atomic_and_asm(&(v)->counter, i) +#define atomic_fetch_xor(i, v) __raw_atomic_xor_asm(&(v)->counter, i) + #endif #include <asm-generic/atomic.h> diff --git a/arch/blackfin/include/asm/spinlock.h b/arch/blackfin/include/asm/spinlock.h index 490c7caa02d9..c58f4a83ed6f 100644 --- a/arch/blackfin/include/asm/spinlock.h +++ b/arch/blackfin/include/asm/spinlock.h @@ -12,6 +12,8 @@ #else #include <linux/atomic.h> +#include <asm/processor.h> +#include <asm/barrier.h> asmlinkage int __raw_spin_is_locked_asm(volatile int *ptr); asmlinkage void __raw_spin_lock_asm(volatile int *ptr); @@ -48,8 +50,7 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock) static inline void arch_spin_unlock_wait(arch_spinlock_t *lock) { - while (arch_spin_is_locked(lock)) - cpu_relax(); + smp_cond_load_acquire(&lock->lock, !VAL); } static inline int arch_read_can_lock(arch_rwlock_t *rw) diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c index a401c27b69b4..68096e8f787f 100644 --- a/arch/blackfin/kernel/bfin_ksyms.c +++ b/arch/blackfin/kernel/bfin_ksyms.c @@ -84,6 +84,7 @@ EXPORT_SYMBOL(insl_16); #ifdef CONFIG_SMP EXPORT_SYMBOL(__raw_atomic_add_asm); +EXPORT_SYMBOL(__raw_atomic_xadd_asm); EXPORT_SYMBOL(__raw_atomic_and_asm); EXPORT_SYMBOL(__raw_atomic_or_asm); EXPORT_SYMBOL(__raw_atomic_xor_asm); diff --git a/arch/blackfin/mach-bf561/atomic.S b/arch/blackfin/mach-bf561/atomic.S index 26fccb5568b9..1e2989c5d6b2 100644 --- a/arch/blackfin/mach-bf561/atomic.S +++ b/arch/blackfin/mach-bf561/atomic.S @@ -607,6 +607,28 @@ ENDPROC(___raw_atomic_add_asm) /* * r0 = ptr + * r1 = value + * + * ADD a signed value to a 32bit word and return the old value atomically. + * Clobbers: r3:0, p1:0 + */ +ENTRY(___raw_atomic_xadd_asm) + p1 = r0; + r3 = r1; + [--sp] = rets; + call _get_core_lock; + r3 = [p1]; + r2 = r3 + r2; + [p1] = r2; + r1 = p1; + call _put_core_lock; + r0 = r3; + rets = [sp++]; + rts; +ENDPROC(___raw_atomic_add_asm) + +/* + * r0 = ptr * r1 = mask * * AND the mask bits from a 32bit word and return the old 32bit value @@ -618,10 +640,9 @@ ENTRY(___raw_atomic_and_asm) r3 = r1; [--sp] = rets; call _get_core_lock; - r2 = [p1]; - r3 = r2 & r3; - [p1] = r3; - r3 = r2; + r3 = [p1]; + r2 = r2 & r3; + [p1] = r2; r1 = p1; call _put_core_lock; r0 = r3; @@ -642,10 +663,9 @@ ENTRY(___raw_atomic_or_asm) r3 = r1; [--sp] = rets; call _get_core_lock; - r2 = [p1]; - r3 = r2 | r3; - [p1] = r3; - r3 = r2; + r3 = [p1]; + r2 = r2 | r3; + [p1] = r2; r1 = p1; call _put_core_lock; r0 = r3; @@ -666,10 +686,9 @@ ENTRY(___raw_atomic_xor_asm) r3 = r1; [--sp] = rets; call _get_core_lock; - r2 = [p1]; - r3 = r2 ^ r3; - [p1] = r3; - r3 = r2; + r3 = [p1]; + r2 = r2 ^ r3; + [p1] = r2; r1 = p1; call _put_core_lock; r0 = r3; diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c index aad5d7416886..9231e5a72b93 100644 --- a/arch/blackfin/mach-bf609/boards/ezkit.c +++ b/arch/blackfin/mach-bf609/boards/ezkit.c @@ -1002,14 +1002,12 @@ static struct adv7842_output_format adv7842_opf[] = { { .op_ch_sel = ADV7842_OP_CH_SEL_BRG, .op_format_sel = ADV7842_OP_FORMAT_SEL_SDR_ITU656_8, - .op_656_range = 1, .blank_data = 1, .insert_av_codes = 1, }, { .op_ch_sel = ADV7842_OP_CH_SEL_RGB, .op_format_sel = ADV7842_OP_FORMAT_SEL_SDR_ITU656_16, - .op_656_range = 1, .blank_data = 1, }, }; |