diff options
| -rw-r--r-- | arch/arm/Kconfig | 24 | ||||
| -rw-r--r-- | arch/arm/include/asm/memory.h | 30 | ||||
| -rw-r--r-- | arch/arm/mach-footbridge/include/mach/memory.h | 10 | ||||
| -rw-r--r-- | arch/arm/mach-iop13xx/include/mach/memory.h | 3 |
4 files changed, 34 insertions, 33 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index c6b248d19c7..4eb816c4df7 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -311,6 +311,7 @@ config ARCH_IOP13XX select PLAT_IOP select PCI select ARCH_SUPPORTS_MSI + select VMSPLIT_1G help Support for Intel's IOP13XX (XScale) family of processors. @@ -739,6 +740,29 @@ config SMP If you don't know what to do here, say N. +choice + prompt "Memory split" + default VMSPLIT_3G + help + Select the desired split between kernel and user memory. + + If you are not absolutely sure what you are doing, leave this + option alone! + + config VMSPLIT_3G + bool "3G/1G user/kernel split" + config VMSPLIT_2G + bool "2G/2G user/kernel split" + config VMSPLIT_1G + bool "1G/3G user/kernel split" +endchoice + +config PAGE_OFFSET + hex + default 0x40000000 if VMSPLIT_1G + default 0x80000000 if VMSPLIT_2G + default 0xC0000000 + config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index bf7c737c922..7e8d22fef29 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. */ diff --git a/arch/arm/mach-footbridge/include/mach/memory.h b/arch/arm/mach-footbridge/include/mach/memory.h index e9cae99dd1f..6ae2f1a07ab 100644 --- a/arch/arm/mach-footbridge/include/mach/memory.h +++ b/arch/arm/mach-footbridge/include/mach/memory.h @@ -42,10 +42,6 @@ extern unsigned long __bus_to_virt(unsigned long); #endif -/* Task size and page offset at 3GB */ -#define TASK_SIZE UL(0xbf000000) -#define PAGE_OFFSET UL(0xc0000000) - /* * Cache flushing area. */ @@ -56,12 +52,6 @@ extern unsigned long __bus_to_virt(unsigned long); */ #define PHYS_OFFSET UL(0x00000000) -/* - * This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ -#define TASK_UNMAPPED_BASE ((TASK_SIZE + 0x01000000) / 3) - #define FLUSH_BASE_PHYS 0x50000000 #endif diff --git a/arch/arm/mach-iop13xx/include/mach/memory.h b/arch/arm/mach-iop13xx/include/mach/memory.h index e8b59d8f1bb..a74b027432d 100644 --- a/arch/arm/mach-iop13xx/include/mach/memory.h +++ b/arch/arm/mach-iop13xx/include/mach/memory.h @@ -7,9 +7,6 @@ * Physical DRAM offset. */ #define PHYS_OFFSET UL(0x00000000) -#define TASK_SIZE UL(0x3f000000) -#define PAGE_OFFSET UL(0x40000000) -#define TASK_UNMAPPED_BASE ((TASK_SIZE + 0x01000000) / 3) #ifndef __ASSEMBLY__ |