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>

1 files changed, 0 insertions, 590 deletions

diff --git a/include/asm-i386/uaccess.h b/include/asm-i386/uaccess.h
deleted file mode 100644
index d2a4f7be9c2..00000000000
--- a/include/asm-i386/uaccess.h
+++ /dev/null
@@ -1,590 +0,0 @@
-#ifndef __i386_UACCESS_H
-#define __i386_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <linux/errno.h>
-#include <linux/thread_info.h>
-#include <linux/prefetch.h>
-#include <linux/string.h>
-#include <asm/page.h>
-
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-/*
- * The fs value determines whether argument validity checking should be
- * performed or not.  If get_fs() == USER_DS, checking is performed, with
- * get_fs() == KERNEL_DS, checking is bypassed.
- *
- * For historical reasons, these macros are grossly misnamed.
- */
-
-#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
-
-
-#define KERNEL_DS	MAKE_MM_SEG(0xFFFFFFFFUL)
-#define USER_DS		MAKE_MM_SEG(PAGE_OFFSET)
-
-#define get_ds()	(KERNEL_DS)
-#define get_fs()	(current_thread_info()->addr_limit)
-#define set_fs(x)	(current_thread_info()->addr_limit = (x))
-
-#define segment_eq(a,b)	((a).seg == (b).seg)
-
-/*
- * movsl can be slow when source and dest are not both 8-byte aligned
- */
-#ifdef CONFIG_X86_INTEL_USERCOPY
-extern struct movsl_mask {
-	int mask;
-} ____cacheline_aligned_in_smp movsl_mask;
-#endif
-
-#define __addr_ok(addr) ((unsigned long __force)(addr) < (current_thread_info()->addr_limit.seg))
-
-/*
- * Test whether a block of memory is a valid user space address.
- * Returns 0 if the range is valid, nonzero otherwise.
- *
- * This is equivalent to the following test:
- * (u33)addr + (u33)size >= (u33)current->addr_limit.seg
- *
- * This needs 33-bit arithmetic. We have a carry...
- */
-#define __range_ok(addr,size) ({ \
-	unsigned long flag,roksum; \
-	__chk_user_ptr(addr); \
-	asm("addl %3,%1 ; sbbl %0,%0; cmpl %1,%4; sbbl $0,%0" \
-		:"=&r" (flag), "=r" (roksum) \
-		:"1" (addr),"g" ((int)(size)),"rm" (current_thread_info()->addr_limit.seg)); \
-	flag; })
-
-/**
- * access_ok: - Checks if a user space pointer is valid
- * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
- *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
- *        to write to a block, it is always safe to read from it.
- * @addr: User space pointer to start of block to check
- * @size: Size of block to check
- *
- * Context: User context only.  This function may sleep.
- *
- * Checks if a pointer to a block of memory in user space is valid.
- *
- * Returns true (nonzero) if the memory block may be valid, false (zero)
- * if it is definitely invalid.
- *
- * Note that, depending on architecture, this function probably just
- * checks that the pointer is in the user space range - after calling
- * this function, memory access functions may still return -EFAULT.
- */
-#define access_ok(type,addr,size) (likely(__range_ok(addr,size) == 0))
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue.  No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path.  This means when everything is well,
- * we don't even have to jump over them.  Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
-	unsigned long insn, fixup;
-};
-
-extern int fixup_exception(struct pt_regs *regs);
-
-/*
- * These are the main single-value transfer routines.  They automatically
- * use the right size if we just have the right pointer type.
- *
- * This gets kind of ugly. We want to return _two_ values in "get_user()"
- * and yet we don't want to do any pointers, because that is too much
- * of a performance impact. Thus we have a few rather ugly macros here,
- * and hide all the ugliness from the user.
- *
- * The "__xxx" versions of the user access functions are versions that
- * do not verify the address space, that must have been done previously
- * with a separate "access_ok()" call (this is used when we do multiple
- * accesses to the same area of user memory).
- */
-
-extern void __get_user_1(void);
-extern void __get_user_2(void);
-extern void __get_user_4(void);
-
-#define __get_user_x(size,ret,x,ptr) \
-	__asm__ __volatile__("call __get_user_" #size \
-		:"=a" (ret),"=d" (x) \
-		:"0" (ptr))
-
-
-/* Careful: we have to cast the result to the type of the pointer for sign reasons */
-/**
- * get_user: - Get a simple variable from user space.
- * @x:   Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only.  This function may sleep.
- *
- * This macro copies a single simple variable from user space to kernel
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define get_user(x,ptr)							\
-({	int __ret_gu;							\
-	unsigned long __val_gu;						\
-	__chk_user_ptr(ptr);						\
-	switch(sizeof (*(ptr))) {					\
-	case 1:  __get_user_x(1,__ret_gu,__val_gu,ptr); break;		\
-	case 2:  __get_user_x(2,__ret_gu,__val_gu,ptr); break;		\
-	case 4:  __get_user_x(4,__ret_gu,__val_gu,ptr); break;		\
-	default: __get_user_x(X,__ret_gu,__val_gu,ptr); break;		\
-	}								\
-	(x) = (__typeof__(*(ptr)))__val_gu;				\
-	__ret_gu;							\
-})
-
-extern void __put_user_bad(void);
-
-/*
- * Strange magic calling convention: pointer in %ecx,
- * value in %eax(:%edx), return value in %eax, no clobbers.
- */
-extern void __put_user_1(void);
-extern void __put_user_2(void);
-extern void __put_user_4(void);
-extern void __put_user_8(void);
-
-#define __put_user_1(x, ptr) __asm__ __volatile__("call __put_user_1":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr))
-#define __put_user_2(x, ptr) __asm__ __volatile__("call __put_user_2":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr))
-#define __put_user_4(x, ptr) __asm__ __volatile__("call __put_user_4":"=a" (__ret_pu):"0" ((typeof(*(ptr)))(x)), "c" (ptr))
-#define __put_user_8(x, ptr) __asm__ __volatile__("call __put_user_8":"=a" (__ret_pu):"A" ((typeof(*(ptr)))(x)), "c" (ptr))
-#define __put_user_X(x, ptr) __asm__ __volatile__("call __put_user_X":"=a" (__ret_pu):"c" (ptr))
-
-/**
- * put_user: - Write a simple value into user space.
- * @x:   Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only.  This function may sleep.
- *
- * This macro copies a single simple value from kernel space to user
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#ifdef CONFIG_X86_WP_WORKS_OK
-
-#define put_user(x,ptr)						\
-({	int __ret_pu;						\
-	__typeof__(*(ptr)) __pu_val;				\
-	__chk_user_ptr(ptr);					\
-	__pu_val = x;						\
-	switch(sizeof(*(ptr))) {				\
-	case 1: __put_user_1(__pu_val, ptr); break;		\
-	case 2: __put_user_2(__pu_val, ptr); break;		\
-	case 4: __put_user_4(__pu_val, ptr); break;		\
-	case 8: __put_user_8(__pu_val, ptr); break;		\
-	default:__put_user_X(__pu_val, ptr); break;		\
-	}							\
-	__ret_pu;						\
-})
-
-#else
-#define put_user(x,ptr)						\
-({								\
- 	int __ret_pu;						\
-	__typeof__(*(ptr)) __pus_tmp = x;			\
-	__ret_pu=0;						\
-	if(unlikely(__copy_to_user_ll(ptr, &__pus_tmp,		\
-				sizeof(*(ptr))) != 0))		\
- 		__ret_pu=-EFAULT;				\
- 	__ret_pu;						\
- })
-
-
-#endif
-
-/**
- * __get_user: - Get a simple variable from user space, with less checking.
- * @x:   Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only.  This function may sleep.
- *
- * This macro copies a single simple variable from user space to kernel
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-#define __get_user(x,ptr) \
-  __get_user_nocheck((x),(ptr),sizeof(*(ptr)))
-
-
-/**
- * __put_user: - Write a simple value into user space, with less checking.
- * @x:   Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only.  This function may sleep.
- *
- * This macro copies a single simple value from kernel space to user
- * space.  It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- */
-#define __put_user(x,ptr) \
-  __put_user_nocheck((__typeof__(*(ptr)))(x),(ptr),sizeof(*(ptr)))
-
-#define __put_user_nocheck(x,ptr,size)				\
-({								\
-	long __pu_err;						\
-	__put_user_size((x),(ptr),(size),__pu_err,-EFAULT);	\
-	__pu_err;						\
-})
-
-
-#define __put_user_u64(x, addr, err)				\
-	__asm__ __volatile__(					\
-		"1:	movl %%eax,0(%2)\n"			\
-		"2:	movl %%edx,4(%2)\n"			\
-		"3:\n"						\
-		".section .fixup,\"ax\"\n"			\
-		"4:	movl %3,%0\n"				\
-		"	jmp 3b\n"				\
-		".previous\n"					\
-		".section __ex_table,\"a\"\n"			\
-		"	.align 4\n"				\
-		"	.long 1b,4b\n"				\
-		"	.long 2b,4b\n"				\
-		".previous"					\
-		: "=r"(err)					\
-		: "A" (x), "r" (addr), "i"(-EFAULT), "0"(err))
-
-#ifdef CONFIG_X86_WP_WORKS_OK
-
-#define __put_user_size(x,ptr,size,retval,errret)			\
-do {									\
-	retval = 0;							\
-	__chk_user_ptr(ptr);						\
-	switch (size) {							\
-	case 1: __put_user_asm(x,ptr,retval,"b","b","iq",errret);break;	\
-	case 2: __put_user_asm(x,ptr,retval,"w","w","ir",errret);break; \
-	case 4: __put_user_asm(x,ptr,retval,"l","","ir",errret); break;	\
-	case 8: __put_user_u64((__typeof__(*ptr))(x),ptr,retval); break;\
-	  default: __put_user_bad();					\
-	}								\
-} while (0)
-
-#else
-
-#define __put_user_size(x,ptr,size,retval,errret)			\
-do {									\
-	__typeof__(*(ptr)) __pus_tmp = x;				\
-	retval = 0;							\
-									\
-	if(unlikely(__copy_to_user_ll(ptr, &__pus_tmp, size) != 0))	\
-		retval = errret;					\
-} while (0)
-
-#endif
-struct __large_struct { unsigned long buf[100]; };
-#define __m(x) (*(struct __large_struct __user *)(x))
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
-	__asm__ __volatile__(						\
-		"1:	mov"itype" %"rtype"1,%2\n"			\
-		"2:\n"							\
-		".section .fixup,\"ax\"\n"				\
-		"3:	movl %3,%0\n"					\
-		"	jmp 2b\n"					\
-		".previous\n"						\
-		".section __ex_table,\"a\"\n"				\
-		"	.align 4\n"					\
-		"	.long 1b,3b\n"					\
-		".previous"						\
-		: "=r"(err)						\
-		: ltype (x), "m"(__m(addr)), "i"(errret), "0"(err))
-
-
-#define __get_user_nocheck(x,ptr,size)				\
-({								\
-	long __gu_err;						\
-	unsigned long __gu_val;					\
-	__get_user_size(__gu_val,(ptr),(size),__gu_err,-EFAULT);\
-	(x) = (__typeof__(*(ptr)))__gu_val;			\
-	__gu_err;						\
-})
-
-extern long __get_user_bad(void);
-
-#define __get_user_size(x,ptr,size,retval,errret)			\
-do {									\
-	retval = 0;							\
-	__chk_user_ptr(ptr);						\
-	switch (size) {							\
-	case 1: __get_user_asm(x,ptr,retval,"b","b","=q",errret);break;	\
-	case 2: __get_user_asm(x,ptr,retval,"w","w","=r",errret);break;	\
-	case 4: __get_user_asm(x,ptr,retval,"l","","=r",errret);break;	\
-	default: (x) = __get_user_bad();				\
-	}								\
-} while (0)
-
-#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret)	\
-	__asm__ __volatile__(						\
-		"1:	mov"itype" %2,%"rtype"1\n"			\
-		"2:\n"							\
-		".section .fixup,\"ax\"\n"				\
-		"3:	movl %3,%0\n"					\
-		"	xor"itype" %"rtype"1,%"rtype"1\n"		\
-		"	jmp 2b\n"					\
-		".previous\n"						\
-		".section __ex_table,\"a\"\n"				\
-		"	.align 4\n"					\
-		"	.long 1b,3b\n"					\
-		".previous"						\
-		: "=r"(err), ltype (x)					\
-		: "m"(__m(addr)), "i"(errret), "0"(err))
-
-
-unsigned long __must_check __copy_to_user_ll(void __user *to,
-				const void *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll(void *to,
-				const void __user *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll_nozero(void *to,
-				const void __user *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll_nocache(void *to,
-				const void __user *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll_nocache_nozero(void *to,
-				const void __user *from, unsigned long n);
-
-/**
- * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking.
- * @to:   Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only.
- *
- * Copy data from kernel space to user space.  Caller must check
- * the specified block with access_ok() before calling this function.
- * The caller should also make sure he pins the user space address
- * so that the we don't result in page fault and sleep.
- *
- * Here we special-case 1, 2 and 4-byte copy_*_user invocations.  On a fault
- * we return the initial request size (1, 2 or 4), as copy_*_user should do.
- * If a store crosses a page boundary and gets a fault, the x86 will not write
- * anything, so this is accurate.
- */
-
-static __always_inline unsigned long __must_check
-__copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
-{
-	if (__builtin_constant_p(n)) {
-		unsigned long ret;
-
-		switch (n) {
-		case 1:
-			__put_user_size(*(u8 *)from, (u8 __user *)to, 1, ret, 1);
-			return ret;
-		case 2:
-			__put_user_size(*(u16 *)from, (u16 __user *)to, 2, ret, 2);
-			return ret;
-		case 4:
-			__put_user_size(*(u32 *)from, (u32 __user *)to, 4, ret, 4);
-			return ret;
-		}
-	}
-	return __copy_to_user_ll(to, from, n);
-}
-
-/**
- * __copy_to_user: - Copy a block of data into user space, with less checking.
- * @to:   Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only.  This function may sleep.
- *
- * Copy data from kernel space to user space.  Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- */
-static __always_inline unsigned long __must_check
-__copy_to_user(void __user *to, const void *from, unsigned long n)
-{
-       might_sleep();
-       return __copy_to_user_inatomic(to, from, n);
-}
-
-static __always_inline unsigned long
-__copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
-{
-	/* Avoid zeroing the tail if the copy fails..
-	 * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
-	 * but as the zeroing behaviour is only significant when n is not
-	 * constant, that shouldn't be a problem.
-	 */
-	if (__builtin_constant_p(n)) {
-		unsigned long ret;
-
-		switch (n) {
-		case 1:
-			__get_user_size(*(u8 *)to, from, 1, ret, 1);
-			return ret;
-		case 2:
-			__get_user_size(*(u16 *)to, from, 2, ret, 2);
-			return ret;
-		case 4:
-			__get_user_size(*(u32 *)to, from, 4, ret, 4);
-			return ret;
-		}
-	}
-	return __copy_from_user_ll_nozero(to, from, n);
-}
-
-/**
- * __copy_from_user: - Copy a block of data from user space, with less checking.
- * @to:   Destination address, in kernel space.
- * @from: Source address, in user space.
- * @n:    Number of bytes to copy.
- *
- * Context: User context only.  This function may sleep.
- *
- * Copy data from user space to kernel space.  Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- *
- * If some data could not be copied, this function will pad the copied
- * data to the requested size using zero bytes.
- *
- * An alternate version - __copy_from_user_inatomic() - may be called from
- * atomic context and will fail rather than sleep.  In this case the
- * uncopied bytes will *NOT* be padded with zeros.  See fs/filemap.h
- * for explanation of why this is needed.
- */
-static __always_inline unsigned long
-__copy_from_user(void *to, const void __user *from, unsigned long n)
-{
-	might_sleep();
-	if (__builtin_constant_p(n)) {
-		unsigned long ret;
-
-		switch (n) {
-		case 1:
-			__get_user_size(*(u8 *)to, from, 1, ret, 1);
-			return ret;
-		case 2:
-			__get_user_size(*(u16 *)to, from, 2, ret, 2);
-			return ret;
-		case 4:
-			__get_user_size(*(u32 *)to, from, 4, ret, 4);
-			return ret;
-		}
-	}
-	return __copy_from_user_ll(to, from, n);
-}
-
-#define ARCH_HAS_NOCACHE_UACCESS
-
-static __always_inline unsigned long __copy_from_user_nocache(void *to,
-				const void __user *from, unsigned long n)
-{
-	might_sleep();
-	if (__builtin_constant_p(n)) {
-		unsigned long ret;
-
-		switch (n) {
-		case 1:
-			__get_user_size(*(u8 *)to, from, 1, ret, 1);
-			return ret;
-		case 2:
-			__get_user_size(*(u16 *)to, from, 2, ret, 2);
-			return ret;
-		case 4:
-			__get_user_size(*(u32 *)to, from, 4, ret, 4);
-			return ret;
-		}
-	}
-	return __copy_from_user_ll_nocache(to, from, n);
-}
-
-static __always_inline unsigned long
-__copy_from_user_inatomic_nocache(void *to, const void __user *from, unsigned long n)
-{
-       return __copy_from_user_ll_nocache_nozero(to, from, n);
-}
-
-unsigned long __must_check copy_to_user(void __user *to,
-				const void *from, unsigned long n);
-unsigned long __must_check copy_from_user(void *to,
-				const void __user *from, unsigned long n);
-long __must_check strncpy_from_user(char *dst, const char __user *src,
-				long count);
-long __must_check __strncpy_from_user(char *dst,
-				const char __user *src, long count);
-
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only.  This function may sleep.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str) strnlen_user(str, LONG_MAX)
-
-long strnlen_user(const char __user *str, long n);
-unsigned long __must_check clear_user(void __user *mem, unsigned long len);
-unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
-
-#endif /* __i386_UACCESS_H */