| #ifndef _ASM_CRIS_ARCH_PAGE_H |
| #define _ASM_CRIS_ARCH_PAGE_H |
| |
| |
| #ifdef __KERNEL__ |
| |
| #define PAGE_OFFSET KSEG_C /* kseg_c is mapped to physical ram. */ |
| |
| /* |
| * Macros to convert between physical and virtual addresses. By stripping a |
| * selected bit it's possible to convert between KSEG_x and 0x40000000 where the |
| * DRAM really resides. DRAM is virtually at 0xc. |
| */ |
| #ifndef CONFIG_ETRAX_VCS_SIM |
| #define __pa(x) ((unsigned long)(x) & 0x7fffffff) |
| #define __va(x) ((void *)((unsigned long)(x) | 0x80000000)) |
| #else |
| #define __pa(x) ((unsigned long)(x) & 0x3fffffff) |
| #define __va(x) ((void *)((unsigned long)(x) | 0xc0000000)) |
| #endif |
| |
| #define VM_STACK_DEFAULT_FLAGS (VM_READ | VM_WRITE | \ |
| VM_MAYREAD | VM_MAYWRITE) |
| |
| #endif /* __KERNEL__ */ |
| |
| #endif /* _ASM_CRIS_ARCH_PAGE_H */ |
