diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/include/asm/uaccess.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h index 56b7208da9a4..0f59fd9ca205 100644 --- a/arch/parisc/include/asm/uaccess.h +++ b/arch/parisc/include/asm/uaccess.h @@ -40,7 +40,7 @@ static inline long access_ok(int type, const void __user * addr, #define get_user __get_user #if !defined(CONFIG_64BIT) -#define LDD_USER(ptr) BUILD_BUG() +#define LDD_USER(ptr) __get_user_asm64(ptr) #define STD_USER(x, ptr) __put_user_asm64(x, ptr) #else #define LDD_USER(ptr) __get_user_asm("ldd", ptr) @@ -114,6 +114,20 @@ struct exception_data { : "r"(ptr), "1"(__gu_err) \ : "r1"); +#if !defined(CONFIG_64BIT) + +#define __get_user_asm64(ptr) \ + __asm__("\n1:\tldw 0(%%sr2,%2),%0" \ + "\n2:\tldw 4(%%sr2,%2),%R0\n\t" \ + ASM_EXCEPTIONTABLE_ENTRY(1b, fixup_get_user_skip_2)\ + ASM_EXCEPTIONTABLE_ENTRY(2b, fixup_get_user_skip_1)\ + : "=r"(__gu_val), "=r"(__gu_err) \ + : "r"(ptr), "1"(__gu_err) \ + : "r1"); + +#endif /* !defined(CONFIG_64BIT) */ + + #define __put_user(x, ptr) \ ({ \ register long __pu_err __asm__ ("r8") = 0; \ |