f2d3efedbe
There are more and more cases where we need to know DMI information early to work around bugs. i386 already had early DMI scanning, but x86-64 didn't. Implement this now. This required some cleanup in the i386 code. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
27 lines
640 B
C
27 lines
640 B
C
#ifndef _ASM_DMI_H
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#define _ASM_DMI_H 1
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#include <asm/io.h>
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extern void *dmi_ioremap(unsigned long addr, unsigned long size);
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extern void dmi_iounmap(void *addr, unsigned long size);
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#define DMI_MAX_DATA 2048
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extern int dmi_alloc_index;
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extern char dmi_alloc_data[DMI_MAX_DATA];
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/* This is so early that there is no good way to allocate dynamic memory.
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Allocate data in an BSS array. */
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static inline void *dmi_alloc(unsigned len)
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{
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int idx = dmi_alloc_index;
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if ((dmi_alloc_index += len) > DMI_MAX_DATA)
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return NULL;
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return dmi_alloc_data + idx;
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}
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#define dmi_ioremap early_ioremap
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#define dmi_iounmap early_iounmap
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#endif
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