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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 11:45:29 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-28 11:45:29 -0700
commita15286c63d113d4296c58867994cd266a28f5d6d (patch)
treeaaebbc86918c0c1943c26115d5bb1dd6c2fc2d9b /arch/parisc
parentb89c07dea16137696d0f2d479ef665ef7c1022ab (diff)
parent0e8a89d49d45197770f2e57fb15f1bc9ded96eb0 (diff)
Merge tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar: - Core locking & atomics: - Convert all architectures to ARCH_ATOMIC: move every architecture to ARCH_ATOMIC, then get rid of ARCH_ATOMIC and all the transitory facilities and #ifdefs. Much reduction in complexity from that series: 63 files changed, 756 insertions(+), 4094 deletions(-) - Self-test enhancements - Futexes: - Add the new FUTEX_LOCK_PI2 ABI, which is a variant that doesn't set FLAGS_CLOCKRT (.e. uses CLOCK_MONOTONIC). [ The temptation to repurpose FUTEX_LOCK_PI's implicit setting of FLAGS_CLOCKRT & invert the flag's meaning to avoid having to introduce a new variant was resisted successfully. ] - Enhance futex self-tests - Lockdep: - Fix dependency path printouts - Optimize trace saving - Broaden & fix wait-context checks - Misc cleanups and fixes. * tag 'locking-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (52 commits) locking/lockdep: Correct the description error for check_redundant() futex: Provide FUTEX_LOCK_PI2 to support clock selection futex: Prepare futex_lock_pi() for runtime clock selection lockdep/selftest: Remove wait-type RCU_CALLBACK tests lockdep/selftests: Fix selftests vs PROVE_RAW_LOCK_NESTING lockdep: Fix wait-type for empty stack locking/selftests: Add a selftest for check_irq_usage() lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() locking/lockdep: Remove the unnecessary trace saving locking/lockdep: Fix the dep path printing for backwards BFS selftests: futex: Add futex compare requeue test selftests: futex: Add futex wait test seqlock: Remove trailing semicolon in macros locking/lockdep: Reduce LOCKDEP dependency list locking/lockdep,doc: Improve readability of the block matrix locking/atomics: atomic-instrumented: simplify ifdeffery locking/atomic: delete !ARCH_ATOMIC remnants locking/atomic: xtensa: move to ARCH_ATOMIC locking/atomic: sparc: move to ARCH_ATOMIC locking/atomic: sh: move to ARCH_ATOMIC ...
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/include/asm/atomic.h34
-rw-r--r--arch/parisc/include/asm/cmpxchg.h14
2 files changed, 24 insertions, 24 deletions
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 21b375c67e53..dd5a299ada69 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -56,7 +56,7 @@ extern arch_spinlock_t __atomic_hash[ATOMIC_HASH_SIZE] __lock_aligned;
* are atomic, so a reader never sees inconsistent values.
*/
-static __inline__ void atomic_set(atomic_t *v, int i)
+static __inline__ void arch_atomic_set(atomic_t *v, int i)
{
unsigned long flags;
_atomic_spin_lock_irqsave(v, flags);
@@ -66,19 +66,19 @@ static __inline__ void atomic_set(atomic_t *v, int i)
_atomic_spin_unlock_irqrestore(v, flags);
}
-#define atomic_set_release(v, i) atomic_set((v), (i))
+#define arch_atomic_set_release(v, i) arch_atomic_set((v), (i))
-static __inline__ int atomic_read(const atomic_t *v)
+static __inline__ int arch_atomic_read(const atomic_t *v)
{
return READ_ONCE((v)->counter);
}
/* exported interface */
-#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+#define arch_atomic_cmpxchg(v, o, n) (arch_cmpxchg(&((v)->counter), (o), (n)))
+#define arch_atomic_xchg(v, new) (arch_xchg(&((v)->counter), new))
#define ATOMIC_OP(op, c_op) \
-static __inline__ void atomic_##op(int i, atomic_t *v) \
+static __inline__ void arch_atomic_##op(int i, atomic_t *v) \
{ \
unsigned long flags; \
\
@@ -88,7 +88,7 @@ static __inline__ void atomic_##op(int i, atomic_t *v) \
}
#define ATOMIC_OP_RETURN(op, c_op) \
-static __inline__ int atomic_##op##_return(int i, atomic_t *v) \
+static __inline__ int arch_atomic_##op##_return(int i, atomic_t *v) \
{ \
unsigned long flags; \
int ret; \
@@ -101,7 +101,7 @@ static __inline__ int atomic_##op##_return(int i, atomic_t *v) \
}
#define ATOMIC_FETCH_OP(op, c_op) \
-static __inline__ int atomic_fetch_##op(int i, atomic_t *v) \
+static __inline__ int arch_atomic_fetch_##op(int i, atomic_t *v) \
{ \
unsigned long flags; \
int ret; \
@@ -141,7 +141,7 @@ ATOMIC_OPS(xor, ^=)
#define ATOMIC64_INIT(i) { (i) }
#define ATOMIC64_OP(op, c_op) \
-static __inline__ void atomic64_##op(s64 i, atomic64_t *v) \
+static __inline__ void arch_atomic64_##op(s64 i, atomic64_t *v) \
{ \
unsigned long flags; \
\
@@ -151,7 +151,7 @@ static __inline__ void atomic64_##op(s64 i, atomic64_t *v) \
}
#define ATOMIC64_OP_RETURN(op, c_op) \
-static __inline__ s64 atomic64_##op##_return(s64 i, atomic64_t *v) \
+static __inline__ s64 arch_atomic64_##op##_return(s64 i, atomic64_t *v) \
{ \
unsigned long flags; \
s64 ret; \
@@ -164,7 +164,7 @@ static __inline__ s64 atomic64_##op##_return(s64 i, atomic64_t *v) \
}
#define ATOMIC64_FETCH_OP(op, c_op) \
-static __inline__ s64 atomic64_fetch_##op(s64 i, atomic64_t *v) \
+static __inline__ s64 arch_atomic64_fetch_##op(s64 i, atomic64_t *v) \
{ \
unsigned long flags; \
s64 ret; \
@@ -200,7 +200,7 @@ ATOMIC64_OPS(xor, ^=)
#undef ATOMIC64_OP
static __inline__ void
-atomic64_set(atomic64_t *v, s64 i)
+arch_atomic64_set(atomic64_t *v, s64 i)
{
unsigned long flags;
_atomic_spin_lock_irqsave(v, flags);
@@ -210,18 +210,18 @@ atomic64_set(atomic64_t *v, s64 i)
_atomic_spin_unlock_irqrestore(v, flags);
}
-#define atomic64_set_release(v, i) atomic64_set((v), (i))
+#define arch_atomic64_set_release(v, i) arch_atomic64_set((v), (i))
static __inline__ s64
-atomic64_read(const atomic64_t *v)
+arch_atomic64_read(const atomic64_t *v)
{
return READ_ONCE((v)->counter);
}
/* exported interface */
-#define atomic64_cmpxchg(v, o, n) \
- ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n)))
-#define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
+#define arch_atomic64_cmpxchg(v, o, n) \
+ ((__typeof__((v)->counter))arch_cmpxchg(&((v)->counter), (o), (n)))
+#define arch_atomic64_xchg(v, new) (arch_xchg(&((v)->counter), new))
#endif /* !CONFIG_64BIT */
diff --git a/arch/parisc/include/asm/cmpxchg.h b/arch/parisc/include/asm/cmpxchg.h
index 84ee232278a6..5f274be10567 100644
--- a/arch/parisc/include/asm/cmpxchg.h
+++ b/arch/parisc/include/asm/cmpxchg.h
@@ -44,7 +44,7 @@ __xchg(unsigned long x, volatile void *ptr, int size)
** if (((unsigned long)p & 0xf) == 0)
** return __ldcw(p);
*/
-#define xchg(ptr, x) \
+#define arch_xchg(ptr, x) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) _x_ = (x); \
@@ -78,7 +78,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new_, int size)
return old;
}
-#define cmpxchg(ptr, o, n) \
+#define arch_cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
@@ -98,7 +98,7 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
#endif
case 4: return __cmpxchg_u32(ptr, old, new_);
default:
- return __cmpxchg_local_generic(ptr, old, new_, size);
+ return __generic_cmpxchg_local(ptr, old, new_, size);
}
}
@@ -106,19 +106,19 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
* cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
* them available.
*/
-#define cmpxchg_local(ptr, o, n) \
+#define arch_cmpxchg_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg_local((ptr), (unsigned long)(o), \
(unsigned long)(n), sizeof(*(ptr))))
#ifdef CONFIG_64BIT
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
cmpxchg_local((ptr), (o), (n)); \
})
#else
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+#define arch_cmpxchg64_local(ptr, o, n) __generic_cmpxchg64_local((ptr), (o), (n))
#endif
-#define cmpxchg64(ptr, o, n) __cmpxchg_u64(ptr, o, n)
+#define arch_cmpxchg64(ptr, o, n) __cmpxchg_u64(ptr, o, n)
#endif /* _ASM_PARISC_CMPXCHG_H_ */