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-rw-r--r--arch/microblaze/atomic.h143
1 files changed, 0 insertions, 143 deletions
diff --git a/arch/microblaze/atomic.h b/arch/microblaze/atomic.h
deleted file mode 100644
index 93404b94..00000000
--- a/arch/microblaze/atomic.h
+++ /dev/null
@@ -1,143 +0,0 @@
-#ifndef _INTERNAL_ATOMIC_H
-#define _INTERNAL_ATOMIC_H
-
-#include <stdint.h>
-
-static inline int a_ctz_l(unsigned long x)
-{
- static const char debruijn32[32] = {
- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
- };
- return debruijn32[(x&-x)*0x076be629 >> 27];
-}
-
-static inline int a_ctz_64(uint64_t x)
-{
- uint32_t y = x;
- if (!y) {
- y = x>>32;
- return 32 + a_ctz_l(y);
- }
- return a_ctz_l(y);
-}
-
-static inline int a_cas(volatile int *p, int t, int s)
-{
- register int old, tmp;
- __asm__ __volatile__ (
- " addi %0, r0, 0\n"
- "1: lwx %0, %2, r0\n"
- " rsubk %1, %0, %3\n"
- " bnei %1, 1f\n"
- " swx %4, %2, r0\n"
- " addic %1, r0, 0\n"
- " bnei %1, 1b\n"
- "1: "
- : "=&r"(old), "=&r"(tmp)
- : "r"(p), "r"(t), "r"(s)
- : "cc", "memory" );
- return old;
-}
-
-static inline void *a_cas_p(volatile void *p, void *t, void *s)
-{
- return (void *)a_cas(p, (int)t, (int)s);
-}
-
-static inline int a_swap(volatile int *x, int v)
-{
- register int old, tmp;
- __asm__ __volatile__ (
- " addi %0, r0, 0\n"
- "1: lwx %0, %2, r0\n"
- " swx %3, %2, r0\n"
- " addic %1, r0, 0\n"
- " bnei %1, 1b\n"
- "1: "
- : "=&r"(old), "=&r"(tmp)
- : "r"(x), "r"(v)
- : "cc", "memory" );
- return old;
-}
-
-static inline int a_fetch_add(volatile int *x, int v)
-{
- register int new, tmp;
- __asm__ __volatile__ (
- " addi %0, r0, 0\n"
- "1: lwx %0, %2, r0\n"
- " addk %0, %0, %3\n"
- " swx %0, %2, r0\n"
- " addic %1, r0, 0\n"
- " bnei %1, 1b\n"
- "1: "
- : "=&r"(new), "=&r"(tmp)
- : "r"(x), "r"(v)
- : "cc", "memory" );
- return new-v;
-}
-
-static inline void a_inc(volatile int *x)
-{
- a_fetch_add(x, 1);
-}
-
-static inline void a_dec(volatile int *x)
-{
- a_fetch_add(x, -1);
-}
-
-static inline void a_store(volatile int *p, int x)
-{
- __asm__ __volatile__ (
- "swi %1, %0"
- : "=m"(*p) : "r"(x) : "memory" );
-}
-
-#define a_spin a_barrier
-
-static inline void a_barrier()
-{
- a_cas(&(int){0}, 0, 0);
-}
-
-static inline void a_crash()
-{
- *(volatile char *)0=0;
-}
-
-static inline void a_and(volatile int *p, int v)
-{
- int old;
- do old = *p;
- while (a_cas(p, old, old&v) != old);
-}
-
-static inline void a_or(volatile int *p, int v)
-{
- int old;
- do old = *p;
- while (a_cas(p, old, old|v) != old);
-}
-
-static inline void a_or_l(volatile void *p, long v)
-{
- a_or(p, v);
-}
-
-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
-{
- union { uint64_t v; uint32_t r[2]; } u = { v };
- a_and((int *)p, u.r[0]);
- a_and((int *)p+1, u.r[1]);
-}
-
-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
-{
- union { uint64_t v; uint32_t r[2]; } u = { v };
- a_or((int *)p, u.r[0]);
- a_or((int *)p+1, u.r[1]);
-}
-
-#endif