diff options
Diffstat (limited to 'arch/arm/include/asm/memory.h')
| -rw-r--r-- | arch/arm/include/asm/memory.h | 46 |
1 files changed, 12 insertions, 34 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 1e070a2b561a..809ff9ab853a 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -13,30 +13,27 @@ #ifndef __ASM_ARM_MEMORY_H #define __ASM_ARM_MEMORY_H +#include <linux/compiler.h> +#include <linux/const.h> +#include <mach/memory.h> +#include <asm/sizes.h> + /* * Allow for constants defined here to be used from assembly code * by prepending the UL suffix only with actual C code compilation. */ -#ifndef __ASSEMBLY__ -#define UL(x) (x##UL) -#else -#define UL(x) (x) -#endif - -#include <linux/compiler.h> -#include <mach/memory.h> -#include <asm/sizes.h> +#define UL(x) _AC(x, UL) #ifdef CONFIG_MMU -#ifndef TASK_SIZE /* + * PAGE_OFFSET - the virtual address of the start of the kernel image * TASK_SIZE - the maximum size of a user space task. * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area */ -#define TASK_SIZE UL(0xbf000000) -#define TASK_UNMAPPED_BASE UL(0x40000000) -#endif +#define PAGE_OFFSET UL(CONFIG_PAGE_OFFSET) +#define TASK_SIZE (UL(CONFIG_PAGE_OFFSET) - UL(0x01000000)) +#define TASK_UNMAPPED_BASE (UL(CONFIG_PAGE_OFFSET) / 3) /* * The maximum size of a 26-bit user space task. @@ -44,13 +41,6 @@ #define TASK_SIZE_26 UL(0x04000000) /* - * Page offset: 3GB - */ -#ifndef PAGE_OFFSET -#define PAGE_OFFSET UL(0xc0000000) -#endif - -/* * The module space lives between the addresses given by TASK_SIZE * and PAGE_OFFSET - it must be within 32MB of the kernel text. */ @@ -147,6 +137,8 @@ #ifndef arch_adjust_zones #define arch_adjust_zones(node,size,holes) do { } while (0) +#elif !defined(CONFIG_ZONE_DMA) +#error "custom arch_adjust_zones() requires CONFIG_ZONE_DMA" #endif /* @@ -306,20 +298,6 @@ static inline __deprecated void *bus_to_virt(unsigned long x) #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT) /* - * Optional device DMA address remapping. Do _not_ use directly! - * We should really eliminate virt_to_bus() here - it's deprecated. - */ -#ifndef __arch_page_to_dma -#define page_to_dma(dev, page) ((dma_addr_t)__virt_to_bus((unsigned long)page_address(page))) -#define dma_to_virt(dev, addr) ((void *)__bus_to_virt(addr)) -#define virt_to_dma(dev, addr) ((dma_addr_t)__virt_to_bus((unsigned long)(addr))) -#else -#define page_to_dma(dev, page) (__arch_page_to_dma(dev, page)) -#define dma_to_virt(dev, addr) (__arch_dma_to_virt(dev, addr)) -#define virt_to_dma(dev, addr) (__arch_virt_to_dma(dev, addr)) -#endif - -/* * Optional coherency support. Currently used only by selected * Intel XSC3-based systems. */ |