/* * This file is subject to the terms and conditions of the GNU General Public * License . See the file " COPYING " in the main directory of this archive * for more details . * * Copyright ( C ) 2014 Imagination Technologies Ltd . #ifndef _ASM_MALTA_SPACES_H#define _ASM_MALTA_SPACES_H#ifdef CONFIG_EVA/* * Traditional Malta Board Memory Map for EVA * * 0 x00000000 - 0 x0fffffff : 1 st RAM region , 256 MB * 0 x10000000 - 0 x1bffffff : GIC and CPC Control Registers * 0 x1c000000 - 0 x1fffffff : I / O And Flash * 0 x20000000 - 0 x7fffffff : 2 nd RAM region , 1 . 5 GB * 0 x80000000 - 0 xffffffff : Physical memory aliases to 0 x0 ( 2 GB ) * * The kernel is still located in 0 x80000000 ( kseg0 ) . However , * the physical mask has been shifted to 0 x80000000 which exploits the alias * on the Malta board . As a result of which , we override the _ _ pa_symbol * to perform direct mapping from virtual to physical addresses . In other * words , the 0 x80000000 virtual address maps to 0 x80000000 physical address * which in turn aliases to 0 x0 . We do this in order to be able to use a flat * 2 GB of memory ( 0 x80000000 - 0 xffffffff ) so we can avoid the I / O hole in * 0 x10000000 - 0 x1fffffff . * The last 64 KB of physical memory are reserved for correct HIGHMEM * macros arithmetic . * #define PAGE_OFFSET _AC(0 x0, UL)#define PHYS_OFFSET _AC(0 x80000000, UL)#define HIGHMEM_START _AC(0 xffff0000, UL)#define __pa_symbol(x) (RELOC_HIDE((unsigned long )(x), 0 ))#endif /* CONFIG_EVA */ #include <asm /mach-generic/spaces.h>#endif /* _ASM_MALTA_SPACES_H */
Messung V0.5 in Prozent C=92 H=34 G=68
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