1 #ifndef _ASM_POWERPC_ABS_ADDR_H
2 #define _ASM_POWERPC_ABS_ADDR_H
7 * c 2001 PPC 64 Team, IBM Corp
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * as published by the Free Software Foundation; either version
12 * 2 of the License, or (at your option) any later version.
15 #include <linux/memblock.h>
17 #include <asm/types.h>
22 unsigned long num_chunks;
23 unsigned long chunk_size;
24 unsigned long chunk_shift;
25 unsigned long chunk_mask;
29 extern struct mschunks_map mschunks_map;
31 /* Chunks are 256 KB */
32 #define MSCHUNKS_CHUNK_SHIFT (18)
33 #define MSCHUNKS_CHUNK_SIZE (1UL << MSCHUNKS_CHUNK_SHIFT)
34 #define MSCHUNKS_OFFSET_MASK (MSCHUNKS_CHUNK_SIZE - 1)
36 static inline unsigned long chunk_to_addr(unsigned long chunk)
38 return chunk << MSCHUNKS_CHUNK_SHIFT;
41 static inline unsigned long addr_to_chunk(unsigned long addr)
43 return addr >> MSCHUNKS_CHUNK_SHIFT;
46 static inline unsigned long phys_to_abs(unsigned long pa)
51 /* Convenience macros */
52 #define virt_to_abs(va) phys_to_abs(__pa(va))
53 #define abs_to_virt(aa) __va(aa)
55 #endif /* __KERNEL__ */
56 #endif /* _ASM_POWERPC_ABS_ADDR_H */