forked from Minki/linux
a8433137ea
1. Move ioswab*() and __mem_ioswab*() to mangle-port.h. This gets rid
of CONFIG_SGI_IP22 from include/asm-mips/io.h.
2. Pass a virtual address to *ioswab*(). Then we can provide
mach-specific *ioswab*() and can do every evil thing based on its
argument. It could be useful on machines which have regions with
different endian conversion scheme.
3. Call __swizzle_addr*() _after_ adding mips_io_port_base. This
unifies the meaning of the argument of __swizzle_addr*() (always
virtual address). Then mach-specific __swizzle_addr*() can do every
evil thing based on the argument.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
27 lines
810 B
C
27 lines
810 B
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 Ladislav Michl
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* Copyright (C) 2004 Ralf Baechle
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*/
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#ifndef __ASM_MACH_IP32_MANGLE_PORT_H
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#define __ASM_MACH_IP32_MANGLE_PORT_H
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#define __swizzle_addr_b(port) ((port) ^ 3)
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#define __swizzle_addr_w(port) ((port) ^ 2)
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#define __swizzle_addr_l(port) (port)
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#define __swizzle_addr_q(port) (port)
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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) (x)
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# define __mem_ioswabw(a,x) cpu_to_le16(x)
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# define ioswabl(a,x) (x)
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# define __mem_ioswabl(a,x) cpu_to_le32(x)
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# define ioswabq(a,x) (x)
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# define __mem_ioswabq(a,x) cpu_to_le32(x)
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#endif /* __ASM_MACH_IP32_MANGLE_PORT_H */
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