mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 00:01:35 +00:00
42d226c724
Signed-off-by: Fuxin Zhang <zhangfx@lemote.com> Signed-off-by: Songmao Tian <tiansm@lemote.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
24 lines
706 B
C
24 lines
706 B
C
/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/fs.h>
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#include <linux/fcntl.h>
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#include <linux/mm.h>
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/* override of arch/mips/mm/cache.c: __uncached_access */
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int __uncached_access(struct file *file, unsigned long addr)
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{
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if (file->f_flags & O_SYNC)
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return 1;
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/*
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* On the Lemote Loongson 2e system, the peripheral registers
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* reside between 0x1000:0000 and 0x2000:0000.
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*/
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return addr >= __pa(high_memory) ||
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((addr >= 0x10000000) && (addr < 0x20000000));
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}
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