kernel-ark/include/asm-cris/arch-v10/page.h
David Woodhouse 62c4f0a2d5 Don't include linux/config.h from anywhere else in include/
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-26 12:56:16 +01:00

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881 B
C

#ifndef _CRIS_ARCH_PAGE_H
#define _CRIS_ARCH_PAGE_H
#ifdef __KERNEL__
/* This handles the memory map.. */
#ifdef CONFIG_CRIS_LOW_MAP
#define PAGE_OFFSET KSEG_6 /* kseg_6 is mapped to physical ram */
#else
#define PAGE_OFFSET KSEG_C /* kseg_c is mapped to physical ram */
#endif
/* macros to convert between really physical and virtual addresses
* by stripping a selected bit, we can convert between KSEG_x and 0x40000000 where
* the DRAM really resides
*/
#ifdef CONFIG_CRIS_LOW_MAP
/* we have DRAM virtually at 0x6 */
#define __pa(x) ((unsigned long)(x) & 0xdfffffff)
#define __va(x) ((void *)((unsigned long)(x) | 0x20000000))
#else
/* we have DRAM virtually at 0xc */
#define __pa(x) ((unsigned long)(x) & 0x7fffffff)
#define __va(x) ((void *)((unsigned long)(x) | 0x80000000))
#endif
#endif
#endif