linux/include/asm-x86_64/dmi.h
Andi Kleen f2d3efedbe [PATCH] x86_64: Implement early DMI scanning
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>
2006-03-25 09:10:55 -08:00

28 lines
640 B
C

#ifndef _ASM_DMI_H
#define _ASM_DMI_H 1
#include <asm/io.h>
extern void *dmi_ioremap(unsigned long addr, unsigned long size);
extern void dmi_iounmap(void *addr, unsigned long size);
#define DMI_MAX_DATA 2048
extern int dmi_alloc_index;
extern char dmi_alloc_data[DMI_MAX_DATA];
/* This is so early that there is no good way to allocate dynamic memory.
Allocate data in an BSS array. */
static inline void *dmi_alloc(unsigned len)
{
int idx = dmi_alloc_index;
if ((dmi_alloc_index += len) > DMI_MAX_DATA)
return NULL;
return dmi_alloc_data + idx;
}
#define dmi_ioremap early_ioremap
#define dmi_iounmap early_iounmap
#endif