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Wrap GNUish asm() code in #ifdef __GNUC__

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This commit is contained in:
Mark Murray 2002-09-21 19:12:59 +00:00
parent 181cb2165a
commit 0a7d7bdc02
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=103757
1 changed files with 24 additions and 0 deletions
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24
sys/alpha/include/atomic.h
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@ -50,6 +50,7 @@ static __inline void atomic_set_32(volatile u_int32_t *p, u_int32_t v)
{
u_int32_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldl_l %0, %2\n\t" /* load old value */
"bis %0, %3, %0\n\t" /* calculate new value */
@ -62,12 +63,14 @@ static __inline void atomic_set_32(volatile u_int32_t *p, u_int32_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_clear_32(volatile u_int32_t *p, u_int32_t v)
{
u_int32_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldl_l %0, %2\n\t" /* load old value */
"bic %0, %3, %0\n\t" /* calculate new value */
@ -80,12 +83,14 @@ static __inline void atomic_clear_32(volatile u_int32_t *p, u_int32_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_add_32(volatile u_int32_t *p, u_int32_t v)
{
u_int32_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldl_l %0, %2\n\t" /* load old value */
"addl %0, %3, %0\n\t" /* calculate new value */
@ -98,12 +103,14 @@ static __inline void atomic_add_32(volatile u_int32_t *p, u_int32_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_subtract_32(volatile u_int32_t *p, u_int32_t v)
{
u_int32_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldl_l %0, %2\n\t" /* load old value */
"subl %0, %3, %0\n\t" /* calculate new value */
@ -116,12 +123,14 @@ static __inline void atomic_subtract_32(volatile u_int32_t *p, u_int32_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline u_int32_t atomic_readandclear_32(volatile u_int32_t *addr)
{
u_int32_t result,temp;
#ifdef __GNUC__
__asm __volatile (
"wmb\n" /* ensure pending writes have drained */
"1:\tldl_l %0,%3\n\t" /* load current value, asserting lock */
@ -134,6 +143,7 @@ static __inline u_int32_t atomic_readandclear_32(volatile u_int32_t *addr)
: "=&r"(result), "=&r"(temp), "=m" (*addr)
: "m"(*addr)
: "memory");
#endif
return result;
}
@ -142,6 +152,7 @@ static __inline void atomic_set_64(volatile u_int64_t *p, u_int64_t v)
{
u_int64_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldq_l %0, %2\n\t" /* load old value */
"bis %0, %3, %0\n\t" /* calculate new value */
@ -154,12 +165,14 @@ static __inline void atomic_set_64(volatile u_int64_t *p, u_int64_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_clear_64(volatile u_int64_t *p, u_int64_t v)
{
u_int64_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldq_l %0, %2\n\t" /* load old value */
"bic %0, %3, %0\n\t" /* calculate new value */
@ -172,12 +185,14 @@ static __inline void atomic_clear_64(volatile u_int64_t *p, u_int64_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_add_64(volatile u_int64_t *p, u_int64_t v)
{
u_int64_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldq_l %0, %2\n\t" /* load old value */
"addq %0, %3, %0\n\t" /* calculate new value */
@ -190,12 +205,14 @@ static __inline void atomic_add_64(volatile u_int64_t *p, u_int64_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline void atomic_subtract_64(volatile u_int64_t *p, u_int64_t v)
{
u_int64_t temp;
#ifdef __GNUC__
__asm __volatile (
"1:\tldq_l %0, %2\n\t" /* load old value */
"subq %0, %3, %0\n\t" /* calculate new value */
@ -208,12 +225,14 @@ static __inline void atomic_subtract_64(volatile u_int64_t *p, u_int64_t v)
: "=&r" (temp), "=m" (*p)
: "m" (*p), "r" (v)
: "memory");
#endif
}
static __inline u_int64_t atomic_readandclear_64(volatile u_int64_t *addr)
{
u_int64_t result,temp;
#ifdef __GNUC__
__asm __volatile (
"wmb\n" /* ensure pending writes have drained */
"1:\tldq_l %0,%3\n\t" /* load current value, asserting lock */
@ -226,6 +245,7 @@ static __inline u_int64_t atomic_readandclear_64(volatile u_int64_t *addr)
: "=&r"(result), "=&r"(temp), "=m" (*addr)
: "m"(*addr)
: "memory");
#endif
return result;
}
@ -354,6 +374,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval)
{
u_int32_t ret;
#ifdef __GNUC__
__asm __volatile (
"1:\tldl_l %0, %4\n\t" /* load old value */
"cmpeq %0, %2, %0\n\t" /* compare */
@ -369,6 +390,7 @@ atomic_cmpset_32(volatile u_int32_t* p, u_int32_t cmpval, u_int32_t newval)
: "=&r" (ret), "=m" (*p)
: "r" ((long)(int)cmpval), "r" (newval), "m" (*p)
: "memory");
#endif
return ret;
}
@ -383,6 +405,7 @@ atomic_cmpset_64(volatile u_int64_t* p, u_int64_t cmpval, u_int64_t newval)
{
u_int64_t ret;
#ifdef __GNUC__
__asm __volatile (
"1:\tldq_l %0, %4\n\t" /* load old value */
"cmpeq %0, %2, %0\n\t" /* compare */
@ -398,6 +421,7 @@ atomic_cmpset_64(volatile u_int64_t* p, u_int64_t cmpval, u_int64_t newval)
: "=&r" (ret), "=m" (*p)
: "r" (cmpval), "r" (newval), "m" (*p)
: "memory");
#endif
return ret;
}