38 lines
1.3 KiB
C
38 lines
1.3 KiB
C
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/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _ASM_FIXMAP_H
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#define _ASM_FIXMAP_H
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#include <linux/kernel.h>
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#include <asm/page.h>
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enum fixed_addresses {
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#define FIX_N_COLOURS 16
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FIX_CMAP_BEGIN,
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FIX_CMAP_END = FIX_CMAP_BEGIN + FIX_N_COLOURS,
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FIX_UNCACHED,
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__end_of_fixed_addresses
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};
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#define set_fixmap(idx, phys) __set_fixmap(idx, phys, PAGE_KERNEL)
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#define set_fixmap_nocache(idx, phys) __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
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#define FIXADDR_TOP (P4SEG - PAGE_SIZE)
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#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
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#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
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#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
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#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
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#endif
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