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Diffstat (limited to 'include/asm-arm26/uaccess-asm.h')
| -rw-r--r-- | include/asm-arm26/uaccess-asm.h | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/include/asm-arm26/uaccess-asm.h b/include/asm-arm26/uaccess-asm.h deleted file mode 100644 index ade76ec02995..000000000000 --- a/include/asm-arm26/uaccess-asm.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * linux/include/asm-arm/proc-armo/uaccess.h - * - * Copyright (C) 1996 Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * The fs functions are implemented on the ARM2 and ARM3 architectures - * manually. - * Use *_user functions to access user memory with faulting behaving - * as though the user is accessing the memory. - * Use set_fs(get_ds()) and then the *_user functions to allow them to - * access kernel memory. - */ - -/* - * These are the values used to represent the user `fs' and the kernel `ds' - * FIXME - the KERNEL_DS should end at 0x03000000 but we want to access ROM at - * 0x03400000. ideally we want to forbid access to the IO space inbetween. - */ -#define KERNEL_DS 0x03FFFFFF -#define USER_DS 0x02000000 - -extern uaccess_t uaccess_user, uaccess_kernel; - -static inline void set_fs (mm_segment_t fs) -{ - current_thread_info()->addr_limit = fs; - current->thread.uaccess = (fs == USER_DS ? &uaccess_user : &uaccess_kernel); -} - -#define __range_ok(addr,size) ({ \ - unsigned long flag, roksum; \ - __asm__ __volatile__("subs %1, %0, %3; cmpcs %1, %2; movcs %0, #0" \ - : "=&r" (flag), "=&r" (roksum) \ - : "r" (addr), "Ir" (size), "0" (current_thread_info()->addr_limit) \ - : "cc"); \ - flag; }) - -#define __addr_ok(addr) ({ \ - unsigned long flag; \ - __asm__ __volatile__("cmp %2, %0; movlo %0, #0" \ - : "=&r" (flag) \ - : "0" (current_thread_info()->addr_limit), "r" (addr) \ - : "cc"); \ - (flag == 0); }) - -#define __put_user_asm_byte(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %1\n" \ - " mov r1, %2\n" \ - " mov r2, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r2\n" \ - : "=r" (err) \ - : "r" (x), "r" (addr), "r" (current->thread.uaccess->put_byte), \ - "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __put_user_asm_half(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %1\n" \ - " mov r1, %2\n" \ - " mov r2, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r2\n" \ - : "=r" (err) \ - : "r" (x), "r" (addr), "r" (current->thread.uaccess->put_half), \ - "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __put_user_asm_word(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %1\n" \ - " mov r1, %2\n" \ - " mov r2, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r2\n" \ - : "=r" (err) \ - : "r" (x), "r" (addr), "r" (current->thread.uaccess->put_word), \ - "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __put_user_asm_dword(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %1\n" \ - " mov r1, %2\n" \ - " mov r2, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r2\n" \ - : "=r" (err) \ - : "r" (x), "r" (addr), "r" (current->thread.uaccess->put_dword), \ - "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __get_user_asm_byte(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %2\n" \ - " mov r1, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r1\n" \ - " mov %1, r0\n" \ - : "=r" (err), "=r" (x) \ - : "r" (addr), "r" (current->thread.uaccess->get_byte), "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __get_user_asm_half(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %2\n" \ - " mov r1, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r1\n" \ - " mov %1, r0\n" \ - : "=r" (err), "=r" (x) \ - : "r" (addr), "r" (current->thread.uaccess->get_half), "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __get_user_asm_word(x,addr,err) \ - __asm__ __volatile__( \ - " mov r0, %2\n" \ - " mov r1, %0\n" \ - " mov lr, pc\n" \ - " mov pc, %3\n" \ - " mov %0, r1\n" \ - " mov %1, r0\n" \ - : "=r" (err), "=r" (x) \ - : "r" (addr), "r" (current->thread.uaccess->get_word), "0" (err) \ - : "r0", "r1", "r2", "lr") - -#define __do_copy_from_user(to,from,n) \ - (n) = current->thread.uaccess->copy_from_user((to),(from),(n)) - -#define __do_copy_to_user(to,from,n) \ - (n) = current->thread.uaccess->copy_to_user((to),(from),(n)) - -#define __do_clear_user(addr,sz) \ - (sz) = current->thread.uaccess->clear_user((addr),(sz)) - -#define __do_strncpy_from_user(dst,src,count,res) \ - (res) = current->thread.uaccess->strncpy_from_user(dst,src,count) - -#define __do_strnlen_user(s,n,res) \ - (res) = current->thread.uaccess->strnlen_user(s,n) |