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Diffstat (limited to 'lib/libspl/asm-generic/atomic.c')
-rw-r--r--lib/libspl/asm-generic/atomic.c135
1 files changed, 77 insertions, 58 deletions
diff --git a/lib/libspl/asm-generic/atomic.c b/lib/libspl/asm-generic/atomic.c
index a3223eadc..f5eb4f34b 100644
--- a/lib/libspl/asm-generic/atomic.c
+++ b/lib/libspl/asm-generic/atomic.c
@@ -40,7 +40,7 @@ pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER;
* Theses are the void returning variants
*/
-#define ATOMIC_INC(name, type) \
+#define ATOMIC_INC(name, type) \
void atomic_inc_##name(volatile type *target) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -59,7 +59,7 @@ ATOMIC_INC(ulong, ulong_t)
ATOMIC_INC(64, uint64_t)
-#define ATOMIC_DEC(name, type) \
+#define ATOMIC_DEC(name, type) \
void atomic_dec_##name(volatile type *target) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -78,7 +78,7 @@ ATOMIC_DEC(ulong, ulong_t)
ATOMIC_DEC(64, uint64_t)
-#define ATOMIC_ADD(name, type1, type2) \
+#define ATOMIC_ADD(name, type1, type2) \
void atomic_add_##name(volatile type1 *target, type2 bits) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -95,7 +95,8 @@ ATOMIC_ADD(int, uint_t, int)
ATOMIC_ADD(long, ulong_t, long)
ATOMIC_ADD(64, uint64_t, int64_t)
-void atomic_add_ptr(volatile void *target, ssize_t bits)
+void
+atomic_add_ptr(volatile void *target, ssize_t bits)
{
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
*(caddr_t *)target += bits;
@@ -103,7 +104,7 @@ void atomic_add_ptr(volatile void *target, ssize_t bits)
}
-#define ATOMIC_SUB(name, type1, type2) \
+#define ATOMIC_SUB(name, type1, type2) \
void atomic_sub_##name(volatile type1 *target, type2 bits) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -120,7 +121,8 @@ ATOMIC_SUB(int, uint_t, int)
ATOMIC_SUB(long, ulong_t, long)
ATOMIC_SUB(64, uint64_t, int64_t)
-void atomic_sub_ptr(volatile void *target, ssize_t bits)
+void
+atomic_sub_ptr(volatile void *target, ssize_t bits)
{
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
*(caddr_t *)target -= bits;
@@ -128,7 +130,7 @@ void atomic_sub_ptr(volatile void *target, ssize_t bits)
}
-#define ATOMIC_OR(name, type) \
+#define ATOMIC_OR(name, type) \
void atomic_or_##name(volatile type *target, type bits) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -146,7 +148,7 @@ ATOMIC_OR(ulong, ulong_t)
ATOMIC_OR(64, uint64_t)
-#define ATOMIC_AND(name, type) \
+#define ATOMIC_AND(name, type) \
void atomic_and_##name(volatile type *target, type bits) \
{ \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
@@ -168,14 +170,14 @@ ATOMIC_AND(64, uint64_t)
* New value returning variants
*/
-#define ATOMIC_INC_NV(name, type) \
+#define ATOMIC_INC_NV(name, type) \
type atomic_inc_##name##_nv(volatile type *target) \
{ \
type rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (++(*target)); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_INC_NV(long, unsigned long)
@@ -189,14 +191,14 @@ ATOMIC_INC_NV(ulong, ulong_t)
ATOMIC_INC_NV(64, uint64_t)
-#define ATOMIC_DEC_NV(name, type) \
+#define ATOMIC_DEC_NV(name, type) \
type atomic_dec_##name##_nv(volatile type *target) \
{ \
type rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (--(*target)); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_DEC_NV(long, unsigned long)
@@ -210,14 +212,14 @@ ATOMIC_DEC_NV(ulong, ulong_t)
ATOMIC_DEC_NV(64, uint64_t)
-#define ATOMIC_ADD_NV(name, type1, type2) \
+#define ATOMIC_ADD_NV(name, type1, type2) \
type1 atomic_add_##name##_nv(volatile type1 *target, type2 bits)\
{ \
type1 rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (*target += bits); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_ADD_NV(8, uint8_t, int8_t)
@@ -229,7 +231,8 @@ ATOMIC_ADD_NV(int, uint_t, int)
ATOMIC_ADD_NV(long, ulong_t, long)
ATOMIC_ADD_NV(64, uint64_t, int64_t)
-void *atomic_add_ptr_nv(volatile void *target, ssize_t bits)
+void *
+atomic_add_ptr_nv(volatile void *target, ssize_t bits)
{
void *ptr;
@@ -237,18 +240,18 @@ void *atomic_add_ptr_nv(volatile void *target, ssize_t bits)
ptr = (*(caddr_t *)target += bits);
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return ptr;
+ return (ptr);
}
-#define ATOMIC_SUB_NV(name, type1, type2) \
+#define ATOMIC_SUB_NV(name, type1, type2) \
type1 atomic_sub_##name##_nv(volatile type1 *target, type2 bits)\
{ \
type1 rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (*target -= bits); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_SUB_NV(8, uint8_t, int8_t)
@@ -260,7 +263,8 @@ ATOMIC_SUB_NV(int, uint_t, int)
ATOMIC_SUB_NV(long, ulong_t, long)
ATOMIC_SUB_NV(64, uint64_t, int64_t)
-void *atomic_sub_ptr_nv(volatile void *target, ssize_t bits)
+void *
+atomic_sub_ptr_nv(volatile void *target, ssize_t bits)
{
void *ptr;
@@ -268,18 +272,18 @@ void *atomic_sub_ptr_nv(volatile void *target, ssize_t bits)
ptr = (*(caddr_t *)target -= bits);
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return ptr;
+ return (ptr);
}
-#define ATOMIC_OR_NV(name, type) \
+#define ATOMIC_OR_NV(name, type) \
type atomic_or_##name##_nv(volatile type *target, type bits) \
{ \
type rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (*target |= bits); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_OR_NV(long, unsigned long)
@@ -293,14 +297,14 @@ ATOMIC_OR_NV(ulong, ulong_t)
ATOMIC_OR_NV(64, uint64_t)
-#define ATOMIC_AND_NV(name, type) \
+#define ATOMIC_AND_NV(name, type) \
type atomic_and_##name##_nv(volatile type *target, type bits) \
{ \
type rc; \
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0); \
rc = (*target &= bits); \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return rc; \
+ return (rc); \
}
ATOMIC_AND_NV(long, unsigned long)
@@ -318,7 +322,7 @@ ATOMIC_AND_NV(64, uint64_t)
* If *arg1 == arg2, set *arg1 = arg3; return old value
*/
-#define ATOMIC_CAS(name, type) \
+#define ATOMIC_CAS(name, type) \
type atomic_cas_##name(volatile type *target, type arg1, type arg2) \
{ \
type old; \
@@ -327,7 +331,7 @@ ATOMIC_AND_NV(64, uint64_t)
if (old == arg1) \
*target = arg2; \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return old; \
+ return (old); \
}
ATOMIC_CAS(8, uint8_t)
@@ -339,17 +343,18 @@ ATOMIC_CAS(uint, uint_t)
ATOMIC_CAS(ulong, ulong_t)
ATOMIC_CAS(64, uint64_t)
-void *atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
+void *
+atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
{
void *old;
VERIFY3S(pthread_mutex_lock(&atomic_lock), ==, 0);
old = *(void **)target;
- if (old == arg1)
- *(void **)target = arg2;
+ if (old == arg1)
+ *(void **)target = arg2;
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return old;
+ return (old);
}
@@ -357,7 +362,7 @@ void *atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
* Swap target and return old value
*/
-#define ATOMIC_SWAP(name, type) \
+#define ATOMIC_SWAP(name, type) \
type atomic_swap_##name(volatile type *target, type bits) \
{ \
type old; \
@@ -365,7 +370,7 @@ void *atomic_cas_ptr(volatile void *target, void *arg1, void *arg2)
old = *target; \
*target = bits; \
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0); \
- return old; \
+ return (old); \
}
ATOMIC_SWAP(8, uint8_t)
@@ -377,7 +382,8 @@ ATOMIC_SWAP(uint, uint_t)
ATOMIC_SWAP(ulong, ulong_t)
ATOMIC_SWAP(64, uint64_t)
-void *atomic_swap_ptr(volatile void *target, void *bits)
+void *
+atomic_swap_ptr(volatile void *target, void *bits)
{
void *old;
@@ -386,11 +392,12 @@ void *atomic_swap_ptr(volatile void *target, void *bits)
*(void **)target = bits;
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return old;
+ return (old);
}
-int atomic_set_long_excl(volatile ulong_t *target, uint_t value)
+int
+atomic_set_long_excl(volatile ulong_t *target, uint_t value)
{
ulong_t bit;
@@ -398,15 +405,16 @@ int atomic_set_long_excl(volatile ulong_t *target, uint_t value)
bit = (1UL << value);
if ((*target & bit) != 0) {
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return -1;
+ return (-1);
}
*target |= bit;
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return 0;
+ return (0);
}
-int atomic_clear_long_excl(volatile ulong_t *target, uint_t value)
+int
+atomic_clear_long_excl(volatile ulong_t *target, uint_t value)
{
ulong_t bit;
@@ -414,67 +422,78 @@ int atomic_clear_long_excl(volatile ulong_t *target, uint_t value)
bit = (1UL << value);
if ((*target & bit) != 0) {
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return -1;
+ return (-1);
}
*target &= ~bit;
VERIFY3S(pthread_mutex_unlock(&atomic_lock), ==, 0);
- return 0;
+ return (0);
}
-void membar_enter(void)
+void
+membar_enter(void)
{
/* XXX - Implement me */
}
-void membar_exit(void)
+void
+membar_exit(void)
{
/* XXX - Implement me */
}
-void membar_producer(void)
+void
+membar_producer(void)
{
/* XXX - Implement me */
}
-void membar_consumer(void)
+void
+membar_consumer(void)
{
/* XXX - Implement me */
}
/* Legacy kernel interfaces; they will go away (eventually). */
-uint8_t cas8(uint8_t *target, uint8_t arg1, uint8_t arg2)
+uint8_t
+cas8(uint8_t *target, uint8_t arg1, uint8_t arg2)
{
- return atomic_cas_8(target, arg1, arg2);
+ return (atomic_cas_8(target, arg1, arg2));
}
-uint32_t cas32(uint32_t *target, uint32_t arg1, uint32_t arg2)
+uint32_t
+cas32(uint32_t *target, uint32_t arg1, uint32_t arg2)
{
- return atomic_cas_32(target, arg1, arg2);
+ return (atomic_cas_32(target, arg1, arg2));
}
-uint64_t cas64(uint64_t *target, uint64_t arg1, uint64_t arg2)
+uint64_t
+cas64(uint64_t *target, uint64_t arg1, uint64_t arg2)
{
- return atomic_cas_64(target, arg1, arg2);
+ return (atomic_cas_64(target, arg1, arg2));
}
-ulong_t caslong(ulong_t *target, ulong_t arg1, ulong_t arg2)
+ulong_t
+caslong(ulong_t *target, ulong_t arg1, ulong_t arg2)
{
- return atomic_cas_ulong(target, arg1, arg2);
+ return (atomic_cas_ulong(target, arg1, arg2));
}
-void *casptr(void *target, void *arg1, void *arg2)
+void *
+casptr(void *target, void *arg1, void *arg2)
{
- return atomic_cas_ptr(target, arg1, arg2);
+ return (atomic_cas_ptr(target, arg1, arg2));
}
-void atomic_and_long(ulong_t *target, ulong_t bits)
+void
+atomic_and_long(ulong_t *target, ulong_t bits)
{
- return atomic_and_ulong(target, bits);
+ return (atomic_and_ulong(target, bits));
}
-void atomic_or_long(ulong_t *target, ulong_t bits)
+void
+atomic_or_long(ulong_t *target, ulong_t bits)
{
- return atomic_or_ulong(target, bits);
+ return (atomic_or_ulong(target, bits));
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 20:27:32 +0000