diff options
author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-17 21:05:42 -0400 |
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committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-22 22:55:20 -0700 |
commit | bb8985586b7a906e116db835c64773b7a7d51663 (patch) | |
tree | de93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/dmi.h | |
parent | 8ede0bdb63305d3353efd97e9af6210afb05734e (diff) |
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/dmi.h')
-rw-r--r-- | arch/x86/include/asm/dmi.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h new file mode 100644 index 000000000000..1cff6fe81fa5 --- /dev/null +++ b/arch/x86/include/asm/dmi.h @@ -0,0 +1,26 @@ +#ifndef ASM_X86__DMI_H +#define ASM_X86__DMI_H + +#include <asm/io.h> + +#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; + dmi_alloc_index += len; + return dmi_alloc_data + idx; +} + +/* Use early IO mappings for DMI because it's initialized early */ +#define dmi_ioremap early_ioremap +#define dmi_iounmap early_iounmap + +#endif /* ASM_X86__DMI_H */ |