summaryrefslogtreecommitdiffstats
path: root/include/asm-sh/futex.h
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2008-07-29 08:09:44 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-29 08:09:44 +0900
commitf15cbe6f1a4b4d9df59142fc8e4abb973302cf44 (patch)
tree774d7b11abaaf33561ab8268bf51ddd9ceb79025 /include/asm-sh/futex.h
parent25326277d8d1393d1c66240e6255aca780f9e3eb (diff)
downloadop-kernel-dev-f15cbe6f1a4b4d9df59142fc8e4abb973302cf44.zip
op-kernel-dev-f15cbe6f1a4b4d9df59142fc8e4abb973302cf44.tar.gz
sh: migrate to arch/sh/include/
This follows the sparc changes a439fe51a1f8eb087c22dd24d69cebae4a3addac. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/futex.h')
-rw-r--r--include/asm-sh/futex.h77
1 files changed, 0 insertions, 77 deletions
diff --git a/include/asm-sh/futex.h b/include/asm-sh/futex.h
deleted file mode 100644
index 68256ec..0000000
--- a/include/asm-sh/futex.h
+++ /dev/null
@@ -1,77 +0,0 @@
-#ifndef __ASM_SH_FUTEX_H
-#define __ASM_SH_FUTEX_H
-
-#ifdef __KERNEL__
-
-#include <linux/futex.h>
-#include <linux/uaccess.h>
-#include <asm/errno.h>
-
-/* XXX: UP variants, fix for SH-4A and SMP.. */
-#include <asm/futex-irq.h>
-
-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;
-
- pagefault_disable();
-
- switch (op) {
- case FUTEX_OP_SET:
- ret = atomic_futex_op_xchg_set(oparg, uaddr, &oldval);
- break;
- case FUTEX_OP_ADD:
- ret = atomic_futex_op_xchg_add(oparg, uaddr, &oldval);
- break;
- case FUTEX_OP_OR:
- ret = atomic_futex_op_xchg_or(oparg, uaddr, &oldval);
- break;
- case FUTEX_OP_ANDN:
- ret = atomic_futex_op_xchg_and(~oparg, uaddr, &oldval);
- break;
- case FUTEX_OP_XOR:
- ret = atomic_futex_op_xchg_xor(oparg, uaddr, &oldval);
- break;
- default:
- ret = -ENOSYS;
- break;
- }
-
- pagefault_enable();
-
- 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;
-}
-
-static inline int
-futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
-{
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
- return -EFAULT;
-
- return atomic_futex_op_cmpxchg_inatomic(uaddr, oldval, newval);
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_SH_FUTEX_H */
OpenPOWER on IntegriCloud