"1: ll %0, %1 # atomic_add \n"
" addu %0, %2 \n"
" sc %0, %1 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
v->counter += i;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
}
"1: ll %0, %1 # atomic_sub \n"
" subu %0, %2 \n"
" sc %0, %1 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
v->counter -= i;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
}
"1: ll %1, %2 # atomic_add_return \n"
" addu %0, %1, %3 \n"
" sc %0, %2 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" addu %0, %1, %3 \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result += i;
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
"1: ll %1, %2 # atomic_sub_return \n"
" subu %0, %1, %3 \n"
" sc %0, %2 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" subu %0, %1, %3 \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result -= i;
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
" bltz %0, 1f \n"
" sc %0, %2 \n"
" .set noreorder \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" subu %0, %1, %3 \n"
" .set reorder \n"
"1: \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result -= i;
if (result >= 0)
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
return result;
}
-#define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
+#define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n)))
+#define atomic_xchg(v, new) (xchg(&((v)->counter), (new)))
/**
* atomic_add_unless - add unless the number is a given value
*/
#define atomic_add_unless(v, a, u) \
({ \
- int c, old; \
+ __typeof__((v)->counter) c, old; \
c = atomic_read(v); \
while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
c = old; \
"1: lld %0, %1 # atomic64_add \n"
" addu %0, %2 \n"
" scd %0, %1 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
v->counter += i;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
}
"1: lld %0, %1 # atomic64_sub \n"
" subu %0, %2 \n"
" scd %0, %1 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter));
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
v->counter -= i;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
}
"1: lld %1, %2 # atomic64_add_return \n"
" addu %0, %1, %3 \n"
" scd %0, %2 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" addu %0, %1, %3 \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result += i;
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
"1: lld %1, %2 # atomic64_sub_return \n"
" subu %0, %1, %3 \n"
" scd %0, %2 \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" subu %0, %1, %3 \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result -= i;
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
" bltz %0, 1f \n"
" scd %0, %2 \n"
" .set noreorder \n"
- " beqz %0, 1b \n"
+ " beqz %0, 2f \n"
" dsubu %0, %1, %3 \n"
" .set reorder \n"
"1: \n"
+ " .subsection 2 \n"
+ "2: b 1b \n"
+ " .previous \n"
" .set mips0 \n"
: "=&r" (result), "=&r" (temp), "=m" (v->counter)
: "Ir" (i), "m" (v->counter)
} else {
unsigned long flags;
- local_irq_save(flags);
+ raw_local_irq_save(flags);
result = v->counter;
result -= i;
if (result >= 0)
v->counter = result;
- local_irq_restore(flags);
+ raw_local_irq_restore(flags);
}
smp_mb();
return result;
}
+#define atomic64_cmpxchg(v, o, n) \
+ (((__typeof__((v)->counter)))cmpxchg(&((v)->counter), (o), (n)))
+#define atomic64_xchg(v, new) (xchg(&((v)->counter), (new)))
+
+/**
+ * atomic64_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
+ *
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns non-zero if @v was not @u, and zero otherwise.
+ */
+#define atomic64_add_unless(v, a, u) \
+({ \
+ __typeof__((v)->counter) c, old; \
+ c = atomic_read(v); \
+ while (c != (u) && (old = atomic64_cmpxchg((v), c, c + (a))) != c) \
+ c = old; \
+ c != (u); \
+})
+#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
+
#define atomic64_dec_return(v) atomic64_sub_return(1,(v))
#define atomic64_inc_return(v) atomic64_add_return(1,(v))