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author | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:20:03 +0200 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2007-10-11 11:20:03 +0200 |
commit | 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 (patch) | |
tree | d947a467aa2da3140279617bc4b9b101640d7bf4 /include/asm-i386/futex.h | |
parent | 27bd0c955648646abf2a353a8371d28c37bcd982 (diff) | |
download | kernel_samsung_smdk4412-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.zip kernel_samsung_smdk4412-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.gz kernel_samsung_smdk4412-96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42.tar.bz2 |
i386/x86_64: move headers to include/asm-x86
Move the headers to include/asm-x86 and fixup the
header install make rules
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-i386/futex.h')
-rw-r--r-- | include/asm-i386/futex.h | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/include/asm-i386/futex.h b/include/asm-i386/futex.h deleted file mode 100644 index 438ef0e..0000000 --- a/include/asm-i386/futex.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef _ASM_FUTEX_H -#define _ASM_FUTEX_H - -#ifdef __KERNEL__ - -#include <linux/futex.h> -#include <asm/errno.h> -#include <asm/system.h> -#include <asm/processor.h> -#include <asm/uaccess.h> - -#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ - __asm__ __volatile ( \ -"1: " insn "\n" \ -"2: .section .fixup,\"ax\"\n\ -3: mov %3, %1\n\ - jmp 2b\n\ - .previous\n\ - .section __ex_table,\"a\"\n\ - .align 8\n\ - .long 1b,3b\n\ - .previous" \ - : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ - : "i" (-EFAULT), "0" (oparg), "1" (0)) - -#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ - __asm__ __volatile ( \ -"1: movl %2, %0\n\ - movl %0, %3\n" \ - insn "\n" \ -"2: " LOCK_PREFIX "cmpxchgl %3, %2\n\ - jnz 1b\n\ -3: .section .fixup,\"ax\"\n\ -4: mov %5, %1\n\ - jmp 3b\n\ - .previous\n\ - .section __ex_table,\"a\"\n\ - .align 8\n\ - .long 1b,4b,2b,4b\n\ - .previous" \ - : "=&a" (oldval), "=&r" (ret), "+m" (*uaddr), \ - "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) - -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, tem; - if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28)) - oparg = 1 << oparg; - - if (! access_ok (VERIFY_WRITE, uaddr, sizeof(int))) - return -EFAULT; - - pagefault_disable(); - - if (op == FUTEX_OP_SET) - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); - else { -#ifndef CONFIG_X86_BSWAP - if (boot_cpu_data.x86 == 3) - ret = -ENOSYS; - else -#endif - switch (op) { - case FUTEX_OP_ADD: - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, - oldval, uaddr, oparg); - break; - case FUTEX_OP_OR: - __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, - oparg); - break; - case FUTEX_OP_ANDN: - __futex_atomic_op2("andl %4, %3", ret, oldval, uaddr, - ~oparg); - break; - case FUTEX_OP_XOR: - __futex_atomic_op2("xorl %4, %3", ret, oldval, uaddr, - oparg); - break; - default: - ret = -ENOSYS; - } - } - - 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; - - __asm__ __volatile__( - "1: " LOCK_PREFIX "cmpxchgl %3, %1 \n" - - "2: .section .fixup, \"ax\" \n" - "3: mov %2, %0 \n" - " jmp 2b \n" - " .previous \n" - - " .section __ex_table, \"a\" \n" - " .align 8 \n" - " .long 1b,3b \n" - " .previous \n" - - : "=a" (oldval), "+m" (*uaddr) - : "i" (-EFAULT), "r" (newval), "0" (oldval) - : "memory" - ); - - return oldval; -} - -#endif -#endif |