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97 lines
2.2 KiB
97 lines
2.2 KiB
11 years ago
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#define LLSC_CLOBBERS "r0", "t", "memory"
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#define LLSC_START(mem) "synco\n" \
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"0: movli.l @" mem ", r0\n"
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#define LLSC_END(mem) \
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"1: movco.l r0, @" mem "\n" \
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" bf 0b\n" \
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" synco\n"
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static inline int __sh_cas_llsc(volatile int *p, int t, int s)
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{
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int old;
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__asm__ __volatile__(
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LLSC_START("%1")
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" mov r0, %0\n"
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" cmp/eq %0, %2\n"
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" bf 1f\n"
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" mov %3, r0\n"
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LLSC_END("%1")
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: "=&r"(old) : "r"(p), "r"(t), "r"(s) : LLSC_CLOBBERS);
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return old;
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}
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static inline int __sh_swap_llsc(volatile int *x, int v)
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{
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int old;
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__asm__ __volatile__(
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LLSC_START("%1")
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" mov r0, %0\n"
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" mov %2, r0\n"
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LLSC_END("%1")
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: "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
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return old;
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}
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static inline int __sh_fetch_add_llsc(volatile int *x, int v)
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{
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int old;
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__asm__ __volatile__(
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LLSC_START("%1")
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" mov r0, %0\n"
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" add %2, r0\n"
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LLSC_END("%1")
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: "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
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return old;
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}
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static inline void __sh_store_llsc(volatile int *p, int x)
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{
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__asm__ __volatile__(
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" synco\n"
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" mov.l %1, @%0\n"
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" synco\n"
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: : "r"(p), "r"(x) : "memory");
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}
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static inline void __sh_and_llsc(volatile int *x, int v)
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{
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__asm__ __volatile__(
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LLSC_START("%0")
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" and %1, r0\n"
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LLSC_END("%0")
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: : "r"(x), "r"(v) : LLSC_CLOBBERS);
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}
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static inline void __sh_or_llsc(volatile int *x, int v)
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{
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__asm__ __volatile__(
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LLSC_START("%0")
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" or %1, r0\n"
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LLSC_END("%0")
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: : "r"(x), "r"(v) : LLSC_CLOBBERS);
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}
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#ifdef __SH4A__
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#define a_cas(p,t,s) __sh_cas_llsc(p,t,s)
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#define a_swap(x,v) __sh_swap_llsc(x,v)
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#define a_fetch_add(x,v) __sh_fetch_add_llsc(x, v)
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#define a_store(x,v) __sh_store_llsc(x, v)
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#define a_and(x,v) __sh_and_llsc(x, v)
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#define a_or(x,v) __sh_or_llsc(x, v)
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#else
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13 years ago
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int __sh_cas(volatile int *, int, int);
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int __sh_swap(volatile int *, int);
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int __sh_fetch_add(volatile int *, int);
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void __sh_store(volatile int *, int);
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void __sh_and(volatile int *, int);
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void __sh_or(volatile int *, int);
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#define a_cas(p,t,s) __sh_cas(p,t,s)
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#define a_swap(x,v) __sh_swap(x,v)
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#define a_fetch_add(x,v) __sh_fetch_add(x, v)
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#define a_store(x,v) __sh_store(x, v)
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#define a_and(x,v) __sh_and(x, v)
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#define a_or(x,v) __sh_or(x, v)
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11 years ago
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#endif
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