/*
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/*
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* linux/include/asm-arm/proc-armv/segment.h
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* linux/include/asm-arm/proc-armv/segment.h
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*
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*
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* Copyright (C) 1996 Russell King
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* Copyright (C) 1996 Russell King
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*/
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*/
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#ifndef __ASM_PROC_SEGMENT_H
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#ifndef __ASM_PROC_SEGMENT_H
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#define __ASM_PROC_SEGMENT_H
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#define __ASM_PROC_SEGMENT_H
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static __inline__ void __put_user(unsigned long x, void * y, int size)
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static __inline__ void __put_user(unsigned long x, void * y, int size)
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{
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{
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switch (size) {
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switch (size) {
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case 1:
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case 1:
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__asm__(
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__asm__(
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"teq %2, #0\n"
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"teq %2, #0\n"
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"strnebt %0, [%1]\n"
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"strnebt %0, [%1]\n"
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"streqb %0, [%1]\n"
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"streqb %0, [%1]\n"
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: : "r" (x), "r" (y), "r" (current->tss.fs)
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: : "r" (x), "r" (y), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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break;
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break;
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case 2:
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case 2:
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{ register unsigned long tmp1 = x; void *tmp2 = y;
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{ register unsigned long tmp1 = x; void *tmp2 = y;
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__asm__ __volatile__(
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__asm__ __volatile__(
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"teq %4, #0\n"
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"teq %4, #0\n"
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"strnebt %0, [%1], #1\n"
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"strnebt %0, [%1], #1\n"
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"streqb %0, [%1], #1\n"
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"streqb %0, [%1], #1\n"
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"mov %0, %0, lsr #8\n"
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"mov %0, %0, lsr #8\n"
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"strnebt %0, [%1]\n"
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"strnebt %0, [%1]\n"
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"streqb %0, [%1]\n"
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"streqb %0, [%1]\n"
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: "=&r" (tmp1), "=&r" (tmp2)
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: "=&r" (tmp1), "=&r" (tmp2)
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: "0" (tmp1), "1" (tmp2), "r" (current->tss.fs)
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: "0" (tmp1), "1" (tmp2), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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}
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}
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break;
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break;
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case 4:
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case 4:
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__asm__(
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__asm__(
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"teq %2, #0\n"
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"teq %2, #0\n"
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"strnet %0, [%1]\n"
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"strnet %0, [%1]\n"
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"streq %0, [%1]\n"
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"streq %0, [%1]\n"
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: : "r" (x), "r" (y), "r" (current->tss.fs)
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: : "r" (x), "r" (y), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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break;
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break;
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default:
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default:
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bad_user_access_length ();
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bad_user_access_length ();
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}
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}
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}
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}
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static __inline__ unsigned long __get_user(const void *y, int size)
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static __inline__ unsigned long __get_user(const void *y, int size)
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{
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{
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unsigned long result;
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unsigned long result;
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switch (size) {
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switch (size) {
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case 1:
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case 1:
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__asm__(
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__asm__(
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"teq %2, #0\n"
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"teq %2, #0\n"
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"ldrnebt %0, [%1]\n"
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"ldrnebt %0, [%1]\n"
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"ldreqb %0, [%1]\n"
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"ldreqb %0, [%1]\n"
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: "=r" (result)
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: "=r" (result)
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: "r" (y), "r" (current->tss.fs)
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: "r" (y), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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return result;
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return result;
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case 2:
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case 2:
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__asm__(
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__asm__(
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"teq %2, #0\n"
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"teq %2, #0\n"
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"ldrnet %0, [%1]\n"
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"ldrnet %0, [%1]\n"
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"ldreq %0, [%1]\n"
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"ldreq %0, [%1]\n"
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"mov %0, %0, lsl #16\n"
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"mov %0, %0, lsl #16\n"
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"mov %0, %0, lsr #16\n"
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"mov %0, %0, lsr #16\n"
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: "=&r" (result)
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: "=&r" (result)
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: "r" (y), "r" (current->tss.fs)
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: "r" (y), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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return result;
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return result;
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case 4:
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case 4:
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__asm__(
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__asm__(
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"teq %2, #0\n"
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"teq %2, #0\n"
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"ldrnet %0, [%1]\n"
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"ldrnet %0, [%1]\n"
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"ldreq %0, [%1]\n"
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"ldreq %0, [%1]\n"
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: "=r" (result)
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: "=r" (result)
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: "r" (y), "r" (current->tss.fs)
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: "r" (y), "r" (current->tss.fs)
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: "lr", "cc");
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: "lr", "cc");
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return result;
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return result;
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default:
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default:
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return bad_user_access_length ();
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return bad_user_access_length ();
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}
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}
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}
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}
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#endif /* __ASM_PROC_SEGMENT_H */
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#endif /* __ASM_PROC_SEGMENT_H */
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