56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/****************************************************************************
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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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#define FIXADDR_USER_START __fix_to_virt(FIX_VDSO)
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#define FIXADDR_USER_END __fix_to_virt(FIX_VDSO - 1)
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#ifndef __ASSEMBLY__
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#include <linux/kernel.h>
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#include <asm/acpi.h>
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#include <asm/apicdef.h>
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#include <asm/page.h>
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enum fixed_addresses {
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FIX_HOLE,
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FIX_VDSO,
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FIX_DBGP_BASE,
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FIX_EARLYCON_MEM_BASE,
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__end_of_permanent_fixed_addresses,
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#define NR_FIX_BTMAPS 16
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FIX_BTMAP_END = __end_of_permanent_fixed_addresses,
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FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS - 1,
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FIX_WP_TEST,
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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 clear_fixmap(idx) __set_fixmap(idx, 0, __pgprot(0))
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#define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP)
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#define __FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
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#define __FIXADDR_BOOT_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
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#define FIXADDR_START (FIXADDR_TOP - __FIXADDR_SIZE)
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#define FIXADDR_BOOT_START (FIXADDR_TOP - __FIXADDR_BOOT_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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#endif
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