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atomicity.h (__exchange_and_add): Silence preprocessor multi-line string warnings.
2000-11-28 Franz Sirl <Franz.Sirl-kernel@lauterbach.com> * config/cpu/powerpc/bits/atomicity.h (__exchange_and_add): Silence preprocessor multi-line string warnings. (__atomic_add): Likewise. (__compare_and_swap): Likewise. (__always_swap): Likewise. (__test_and_set): Likewise. * config/cpu/arm/bits/atomicity.h (__exchange_and_add): Likewise. (__atomic_add): Likewise. (__compare_and_swap): Likewise. (__always_swap): Likewise. (__test_and_set): Likewise. From-SVN: r37831
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Franz Sirl
Franz Sirl
parent
70cf82bcf5
commit
79f41ea419
@ -1,3 +1,17 @@
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2000-11-28 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
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* config/cpu/powerpc/bits/atomicity.h (__exchange_and_add): Silence
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preprocessor multi-line string warnings.
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(__atomic_add): Likewise.
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(__compare_and_swap): Likewise.
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(__always_swap): Likewise.
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(__test_and_set): Likewise.
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* config/cpu/arm/bits/atomicity.h (__exchange_and_add): Likewise.
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(__atomic_add): Likewise.
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(__compare_and_swap): Likewise.
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(__always_swap): Likewise.
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(__test_and_set): Likewise.
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2000-11-28 Benjamin Kosnik <bkoz@purist.soma.redhat.com>
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Update for 2.91 release.
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@ -27,16 +27,19 @@ __attribute__ ((__unused__))
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__exchange_and_add (volatile _Atomic_word* __mem, int __val)
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{
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_Atomic_word __tmp, __tmp2, __result;
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__asm__ __volatile__ ("\
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0: ldr %0,[%3]
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add %1,%0,%4
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swp %2,%1,[%3]
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cmp %0,%2
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swpne %1,%2,[%3]
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bne 0b
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" : "=&r"(__result), "=&r"(__tmp), "=&r"(__tmp2)
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: "r" (__mem), "r"(__val)
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: "cc", "memory");
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__asm__ __volatile__ (
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"\n"
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"0:\t"
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"ldr %0,[%3] \n\t"
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"add %1,%0,%4 \n\t"
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"swp %2,%1,[%3] \n\t"
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"cmp %0,%2 \n\t"
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"swpne %1,%2,[%3] \n\t"
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"bne 0b \n\t"
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""
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: "=&r"(__result), "=&r"(__tmp), "=&r"(__tmp2)
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: "r" (__mem), "r"(__val)
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: "cc", "memory");
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return __result;
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}
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@ -45,16 +48,19 @@ __attribute__ ((__unused__))
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__atomic_add (volatile _Atomic_word *__mem, int __val)
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{
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_Atomic_word __tmp, __tmp2, __tmp3;
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__asm__ __volatile__ ("\
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0: ldr %0,[%3]
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add %1,%0,%4
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swp %2,%1,[%3]
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cmp %0,%2
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swpne %1,%2,[%3]
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bne 0b
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" : "=&r"(__tmp), "=&r"(__tmp2), "=&r"(__tmp3)
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: "r" (__mem), "r"(__val)
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: "cc", "memory");
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__asm__ __volatile__ (
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"\n"
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"0:\t"
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"ldr %0,[%3] \n\t"
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"add %1,%0,%4 \n\t"
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"swp %2,%1,[%3] \n\t"
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"cmp %0,%2 \n\t"
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"swpne %1,%2,[%3] \n\t"
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"bne 0b \n\t"
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""
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: "=&r"(__tmp), "=&r"(__tmp2), "=&r"(__tmp3)
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: "r" (__mem), "r"(__val)
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: "cc", "memory");
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}
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static inline int
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@ -63,20 +69,23 @@ __compare_and_swap (volatile long *__p, long __oldval, long __newval)
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{
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int __result;
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long __tmp;
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__asm__ __volatile__ ("\
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0: ldr %1,[%2]
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mov %0,#0
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cmp %1,%4
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bne 1f
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swp %0,%3,[%2]
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cmp %1,%0
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swpne %1,%0,[%2]
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bne 0b
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mov %0,#1
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1:
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" : "=&r"(__result), "=&r"(__tmp)
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: "r" (__p), "r" (__newval), "r" (__oldval)
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: "cc", "memory");
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__asm__ __volatile__ (
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"\n"
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"0:\t"
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"ldr %1,[%2] \n\t"
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"mov %0,#0 \n\t"
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"cmp %1,%4 \n\t"
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"bne 1f \n\t"
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"swp %0,%3,[%2] \n\t"
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"cmp %1,%0 \n\t"
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"swpne %1,%0,[%2] \n\t"
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"bne 0b \n\t"
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"mov %0,#1 \n"
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"1:\n\t"
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""
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: "=&r"(__result), "=&r"(__tmp)
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: "r" (__p), "r" (__newval), "r" (__oldval)
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: "cc", "memory");
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return __result;
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}
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@ -85,9 +94,13 @@ __attribute__ ((__unused__))
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__always_swap (volatile long *__p, long __newval)
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{
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long __result;
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__asm__ __volatile__ ("\
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swp %0,%2,[%1]
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" : "=&r"(__result) : "r"(__p), "r"(__newval) : "memory");
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__asm__ __volatile__ (
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"\n\t"
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"swp %0,%2,[%1] \n\t"
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""
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: "=&r"(__result)
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: "r"(__p), "r"(__newval)
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: "memory");
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return __result;
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}
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@ -97,18 +110,21 @@ __test_and_set (volatile long *__p, long __newval)
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{
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int __result;
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long __tmp;
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__asm__ __volatile__ ("\
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0: ldr %0,[%2]
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cmp %0,#0
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bne 1f
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swp %1,%3,[%2]
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cmp %0,%1
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swpne %0,%1,[%2]
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bne 0b
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1:
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" : "=&r"(__result), "=r" (__tmp)
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: "r"(__p), "r"(__newval)
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: "cc", "memory");
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__asm__ __volatile__ (
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"\n"
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"0:\t"
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"ldr %0,[%2] \n\t"
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"cmp %0,#0 \n\t"
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"bne 1f \n\t"
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"swp %1,%3,[%2] \n\t"
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"cmp %0,%1 \n\t"
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"swpne %0,%1,[%2] \n\t"
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"bne 0b \n"
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"1:\n\t"
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""
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: "=&r"(__result), "=r" (__tmp)
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: "r"(__p), "r"(__newval)
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: "cc", "memory");
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return __result;
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}
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@ -27,12 +27,17 @@ __attribute__ ((__unused__))
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__exchange_and_add (volatile _Atomic_word* __mem, int __val)
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{
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_Atomic_word __tmp, __res;
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__asm__ __volatile__ ("\
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0: lwarx %0,0,%2
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add%I3 %1,%0,%3
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stwcx. %1,0,%2
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bne- 0b
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" : "=&b"(__res), "=&r"(__tmp) : "r" (__mem), "Ir"(__val) : "cr0", "memory");
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__asm__ __volatile__ (
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"/* Inline exchange & add */\n"
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"0:\t"
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"lwarx %0,0,%2 \n\t"
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"add%I3 %1,%0,%3 \n\t"
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"stwcx. %1,0,%2 \n\t"
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"bne- 0b \n\t"
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"/* End exchange & add */"
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: "=&b"(__res), "=&r"(__tmp)
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: "r" (__mem), "Ir"(__val)
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: "cr0", "memory");
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return __res;
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}
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@ -41,12 +46,17 @@ __attribute__ ((__unused__))
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__atomic_add (volatile _Atomic_word *__mem, int __val)
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{
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_Atomic_word __tmp;
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__asm__ __volatile__ ("\
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0: lwarx %0,0,%1
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add%I2 %0,%0,%2
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stwcx. %0,0,%1
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bne- 0b
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" : "=&b"(__tmp) : "r" (__mem), "Ir"(__val) : "cr0", "memory");
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__asm__ __volatile__ (
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"/* Inline atomic add */\n"
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"0:\t"
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"lwarx %0,0,%1 \n\t"
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"add%I2 %0,%0,%2 \n\t"
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"stwcx. %0,0,%1 \n\t"
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"bne- 0b \n\t"
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"/* End atomic add */"
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: "=&b"(__tmp)
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: "r" (__mem), "Ir"(__val)
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: "cr0", "memory");
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}
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static inline int
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@ -54,15 +64,20 @@ __attribute__ ((__unused__))
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__compare_and_swap (volatile long *__p, long int __oldval, long int __newval)
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{
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int __res;
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__asm__ __volatile__ ("\
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0: lwarx %0,0,%1
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sub%I2c. %0,%0,%2
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cntlzw %0,%0
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bne- 1f
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stwcx. %3,0,%1
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bne- 0b
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1:
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" : "=&b"(__res) : "r"(__p), "Ir"(__oldval), "r"(__newval) : "cr0", "memory");
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__asm__ __volatile__ (
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"/* Inline compare & swap */\n"
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"0:\t"
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"lwarx %0,0,%1 \n\t"
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"sub%I2c. %0,%0,%2 \n\t"
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"cntlzw %0,%0 \n\t"
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"bne- 1f \n\t"
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"stwcx. %3,0,%1 \n\t"
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"bne- 0b \n"
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"1:\n\t"
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"/* End compare & swap */"
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: "=&b"(__res)
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: "r"(__p), "Ir"(__oldval), "r"(__newval)
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: "cr0", "memory");
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return __res >> 5;
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}
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@ -71,11 +86,16 @@ __attribute__ ((__unused__))
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__always_swap (volatile long *__p, long int __newval)
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{
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long __res;
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__asm__ __volatile__ ("\
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0: lwarx %0,0,%1
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stwcx. %2,0,%1
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bne- 0b
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" : "=&r"(__res) : "r"(__p), "r"(__newval) : "cr0", "memory");
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__asm__ __volatile__ (
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"/* Inline always swap */\n"
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"0:\t"
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"lwarx %0,0,%1 \n\t"
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"stwcx. %2,0,%1 \n\t"
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"bne- 0b \n\t"
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"/* End always swap */"
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: "=&r"(__res)
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: "r"(__p), "r"(__newval)
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: "cr0", "memory");
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return __res;
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}
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@ -84,14 +104,19 @@ __attribute__ ((__unused__))
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__test_and_set (volatile long *__p, long int __newval)
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{
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int __res;
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__asm__ __volatile__ ("\
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0: lwarx %0,0,%1
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cmpwi %0,0
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bne- 1f
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stwcx. %2,0,%1
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bne- 0b
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1:
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" : "=&r"(__res) : "r"(__p), "r"(__newval) : "cr0", "memory");
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__asm__ __volatile__ (
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"/* Inline test & set */\n"
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"0:\t"
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"lwarx %0,0,%1 \n\t"
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"cmpwi %0,0 \n\t"
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"bne- 1f \n\t"
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"stwcx. %2,0,%1 \n\t"
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"bne- 0b \n"
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"1:\n\t"
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"/* End test & set */"
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: "=&r"(__res)
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: "r"(__p), "r"(__newval)
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: "cr0", "memory");
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return __res;
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}
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