paccess.h File Reference

#include <linux/errno.h>

Go to the source code of this file.

Data Structures
struct	__large_pstruct

Macros
#define	put_dbe(x, ptr)   __put_dbe((x), (ptr), sizeof(*(ptr)))
#define	get_dbe(x, ptr)   __get_dbe((x), (ptr), sizeof(*(ptr)))
#define	__mp(x)   (*(struct __large_pstruct *)(x))
#define	__get_dbe(x, ptr, size)
#define	__get_dbe_asm(insn)
#define	__put_dbe(x, ptr, size)
#define	__put_dbe_asm(insn)

Functions
asmlinkage void	handle_ibe (void)
asmlinkage void	handle_dbe (void)
void	__get_dbe_unknown (void)
void	__put_dbe_unknown (void)
unsigned long	search_dbe_table (unsigned long addr)

Macro Definition Documentation

#define __get_dbe	(		x,
			ptr,
			size
	)

Value:

({                                  \
    long __gu_err;                          \
    __typeof__(*(ptr)) __gu_val;                    \
    unsigned long __gu_addr;                    \
    __asm__("":"=r" (__gu_val));                    \
    __gu_addr = (unsigned long) (ptr);              \
    __asm__("":"=r" (__gu_err));                    \
    switch (size) {                         \
    case 1: __get_dbe_asm("lb"); break;             \
    case 2: __get_dbe_asm("lh"); break;             \
    case 4: __get_dbe_asm("lw"); break;             \
    case 8:  __get_dbe_asm("ld"); break;                \
    default: __get_dbe_unknown(); break;                \
    }                               \
    x = (__typeof__(*(ptr))) __gu_val;              \
    __gu_err;                           \
})

Definition at line 34 of file paccess.h.

#define __get_dbe_asm

(

insn

)

Value:

{                                   \
    __asm__ __volatile__(                       \
    "1:\t" insn "\t%1,%2\n\t"                   \
    "move\t%0,$0\n"                         \
    "2:\n\t"                            \
    ".section\t.fixup,\"ax\"\n"                 \
    "3:\tli\t%0,%3\n\t"                     \
    "move\t%1,$0\n\t"                       \
    "j\t2b\n\t"                         \
    ".previous\n\t"                         \
    ".section\t__dbe_table,\"a\"\n\t"               \
    __PA_ADDR "\t1b, 3b\n\t"                    \
    ".previous"                         \
    :"=r" (__gu_err), "=r" (__gu_val)               \
    :"o" (__mp(__gu_addr)), "i" (-EFAULT));             \
}

Definition at line 53 of file paccess.h.

#define __mp

(

x

)

(*(struct __large_pstruct *)(x))

Definition at line 32 of file paccess.h.

#define __put_dbe	(		x,
			ptr,
			size
	)

Value:

({                                  \
    long __pu_err;                          \
    __typeof__(*(ptr)) __pu_val;                    \
    long __pu_addr;                         \
    __pu_val = (x);                         \
    __pu_addr = (long) (ptr);                   \
    __asm__("":"=r" (__pu_err));                    \
    switch (size) {                         \
    case 1: __put_dbe_asm("sb"); break;             \
    case 2: __put_dbe_asm("sh"); break;             \
    case 4: __put_dbe_asm("sw"); break;             \
    case 8: __put_dbe_asm("sd"); break;             \
    default: __put_dbe_unknown(); break;                \
    }                               \
    __pu_err;                           \
})

Definition at line 73 of file paccess.h.

#define __put_dbe_asm

(

insn

)

Value:

{                                   \
    __asm__ __volatile__(                       \
    "1:\t" insn "\t%1,%2\n\t"                   \
    "move\t%0,$0\n"                         \
    "2:\n\t"                            \
    ".section\t.fixup,\"ax\"\n"                 \
    "3:\tli\t%0,%3\n\t"                     \
    "j\t2b\n\t"                         \
    ".previous\n\t"                         \
    ".section\t__dbe_table,\"a\"\n\t"               \
    __PA_ADDR "\t1b, 3b\n\t"                    \
    ".previous"                         \
    : "=r" (__pu_err)                       \
    : "r" (__pu_val), "o" (__mp(__pu_addr)), "i" (-EFAULT));    \
}

Definition at line 91 of file paccess.h.

#define get_dbe	(		x,
			ptr
	)		__get_dbe((x), (ptr), sizeof(*(ptr)))

Definition at line 29 of file paccess.h.

#define put_dbe	(		x,
			ptr
	)		__put_dbe((x), (ptr), sizeof(*(ptr)))

Definition at line 28 of file paccess.h.

Function Documentation

void __get_dbe_unknown

(

void

)

void __put_dbe_unknown

(

void

)

asmlinkage void handle_dbe

(

void

)

asmlinkage void handle_ibe

(

void

)

unsigned long search_dbe_table

(

unsigned long

addr

)