From bb8985586b7a906e116db835c64773b7a7d51663 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 21:05:42 -0400 Subject: x86, um: ... and asm-x86 move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/dmi.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 arch/x86/include/asm/dmi.h (limited to 'arch/x86/include/asm/dmi.h') diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h new file mode 100644 index 00000000000..1cff6fe81fa --- /dev/null +++ b/arch/x86/include/asm/dmi.h @@ -0,0 +1,26 @@ +#ifndef ASM_X86__DMI_H +#define ASM_X86__DMI_H + +#include + +#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 */ -- cgit v1.2.3