4ae987894c
The arch/s390/boot directory is built with its own set of compiler options that does not include -Wno-pointer-sign like the rest of the kernel does, this causes a lot of harmless but correct warnings when building with clang. For the atomics, we can add type casts to avoid the warnings, for everything else the easiest way is to slightly adapt the types to be more consistent. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
48 lines
1.4 KiB
C
48 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* EBCDIC -> ASCII, ASCII -> EBCDIC conversion routines.
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*
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* S390 version
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* Copyright IBM Corp. 1999
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* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
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*/
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#ifndef _EBCDIC_H
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#define _EBCDIC_H
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#include <linux/types.h>
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extern __u8 _ascebc_500[256]; /* ASCII -> EBCDIC 500 conversion table */
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extern __u8 _ebcasc_500[256]; /* EBCDIC 500 -> ASCII conversion table */
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extern __u8 _ascebc[256]; /* ASCII -> EBCDIC conversion table */
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extern __u8 _ebcasc[256]; /* EBCDIC -> ASCII conversion table */
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extern __u8 _ebc_tolower[256]; /* EBCDIC -> lowercase */
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extern __u8 _ebc_toupper[256]; /* EBCDIC -> uppercase */
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static inline void
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codepage_convert(const __u8 *codepage, volatile char *addr, unsigned long nr)
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{
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if (nr-- <= 0)
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return;
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asm volatile(
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" bras 1,1f\n"
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" tr 0(1,%0),0(%2)\n"
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"0: tr 0(256,%0),0(%2)\n"
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" la %0,256(%0)\n"
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"1: ahi %1,-256\n"
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" jnm 0b\n"
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" ex %1,0(1)"
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: "+&a" (addr), "+&a" (nr)
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: "a" (codepage) : "cc", "memory", "1");
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}
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#define ASCEBC(addr,nr) codepage_convert(_ascebc, addr, nr)
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#define EBCASC(addr,nr) codepage_convert(_ebcasc, addr, nr)
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#define ASCEBC_500(addr,nr) codepage_convert(_ascebc_500, addr, nr)
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#define EBCASC_500(addr,nr) codepage_convert(_ebcasc_500, addr, nr)
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#define EBC_TOLOWER(addr,nr) codepage_convert(_ebc_tolower, addr, nr)
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#define EBC_TOUPPER(addr,nr) codepage_convert(_ebc_toupper, addr, nr)
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#endif
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