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Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1#ifndef _ASM_X86_DMI_H
2#define _ASM_X86_DMI_H
3
4#include <asm/io.h>
5
6#define DMI_MAX_DATA 2048
7
8extern int dmi_alloc_index;
9extern char dmi_alloc_data[DMI_MAX_DATA];
10
11/* This is so early that there is no good way to allocate dynamic memory.
12 Allocate data in an BSS array. */
13static inline void *dmi_alloc(unsigned len)
14{
15 int idx = dmi_alloc_index;
16 if ((dmi_alloc_index + len) > DMI_MAX_DATA)
17 return NULL;
18 dmi_alloc_index += len;
19 return dmi_alloc_data + idx;
20}
21
22/* Use early IO mappings for DMI because it's initialized early */
23#define dmi_ioremap early_ioremap
24#define dmi_iounmap early_iounmap
25
26#endif