Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2003, 2004 Ralf Baechle
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*/
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#ifndef __ASM_MACH_GENERIC_MANGLE_PORT_H
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#define __ASM_MACH_GENERIC_MANGLE_PORT_H
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#include <asm/byteorder.h>
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#ifdef __BIG_ENDIAN
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static inline bool __should_swizzle_bits(volatile void *a)
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{
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extern const bool octeon_should_swizzle_table[];
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u64 did = ((u64)(uintptr_t)a >> 40) & 0xff;
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return octeon_should_swizzle_table[did];
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}
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# define __swizzle_addr_b(port) (port)
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# define __swizzle_addr_w(port) (port)
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# define __swizzle_addr_l(port) (port)
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# define __swizzle_addr_q(port) (port)
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#else /* __LITTLE_ENDIAN */
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#define __should_swizzle_bits(a) false
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static inline bool __should_swizzle_addr(u64 p)
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{
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/* boot bus? */
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return ((p >> 40) & 0xff) == 0;
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}
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# define __swizzle_addr_b(port) \
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(__should_swizzle_addr(port) ? (port) ^ 7 : (port))
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# define __swizzle_addr_w(port) \
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(__should_swizzle_addr(port) ? (port) ^ 6 : (port))
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# define __swizzle_addr_l(port) \
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(__should_swizzle_addr(port) ? (port) ^ 4 : (port))
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# define __swizzle_addr_q(port) (port)
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#endif /* __BIG_ENDIAN */
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# define ioswabb(a, x) (x)
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# define __mem_ioswabb(a, x) (x)
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# define ioswabw(a, x) (__should_swizzle_bits(a) ? \
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le16_to_cpu((__force __le16)(x)) : \
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(x))
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# define __mem_ioswabw(a, x) (x)
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# define ioswabl(a, x) (__should_swizzle_bits(a) ? \
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le32_to_cpu((__force __le32)(x)) : \
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(x))
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# define __mem_ioswabl(a, x) (x)
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# define ioswabq(a, x) (__should_swizzle_bits(a) ? \
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le64_to_cpu((__force __le64)(x)) : \
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(x))
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# define __mem_ioswabq(a, x) (x)
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#endif /* __ASM_MACH_GENERIC_MANGLE_PORT_H */
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