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-rw-r--r--include/asm-ppc64/futex.h83
1 files changed, 0 insertions, 83 deletions
diff --git a/include/asm-ppc64/futex.h b/include/asm-ppc64/futex.h
deleted file mode 100644
index 266b460de44..00000000000
--- a/include/asm-ppc64/futex.h
+++ /dev/null
@@ -1,83 +0,0 @@
-#ifndef _ASM_FUTEX_H
-#define _ASM_FUTEX_H
-
-#ifdef __KERNEL__
-
-#include <linux/futex.h>
-#include <asm/errno.h>
-#include <asm/synch.h>
-#include <asm/uaccess.h>
-
-#define __futex_atomic_op(insn, ret, oldval, uaddr, oparg) \
- __asm__ __volatile (SYNC_ON_SMP \
-"1: lwarx %0,0,%2\n" \
- insn \
-"2: stwcx. %1,0,%2\n\
- bne- 1b\n\
- li %1,0\n\
-3: .section .fixup,\"ax\"\n\
-4: li %1,%3\n\
- b 3b\n\
- .previous\n\
- .section __ex_table,\"a\"\n\
- .align 3\n\
- .llong 1b,4b,2b,4b\n\
- .previous" \
- : "=&r" (oldval), "=&r" (ret) \
- : "b" (uaddr), "i" (-EFAULT), "1" (oparg) \
- : "cr0", "memory")
-
-static inline int
-futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
-{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
- int oldval = 0, ret;
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- inc_preempt_count();
-
- switch (op) {
- case FUTEX_OP_SET:
- __futex_atomic_op("", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_ADD:
- __futex_atomic_op("add %1,%0,%1\n", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_OR:
- __futex_atomic_op("or %1,%0,%1\n", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_ANDN:
- __futex_atomic_op("andc %1,%0,%1\n", ret, oldval, uaddr, oparg);
- break;
- case FUTEX_OP_XOR:
- __futex_atomic_op("xor %1,%0,%1\n", ret, oldval, uaddr, oparg);
- break;
- default:
- ret = -ENOSYS;
- }
-
- dec_preempt_count();
-
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ: ret = (oldval == cmparg); break;
- case FUTEX_OP_CMP_NE: ret = (oldval != cmparg); break;
- case FUTEX_OP_CMP_LT: ret = (oldval < cmparg); break;
- case FUTEX_OP_CMP_GE: ret = (oldval >= cmparg); break;
- case FUTEX_OP_CMP_LE: ret = (oldval <= cmparg); break;
- case FUTEX_OP_CMP_GT: ret = (oldval > cmparg); break;
- default: ret = -ENOSYS;
- }
- }
- return ret;
-}
-
-#endif
-#endif