Root/
| Source at commit 1270 created 12 years 8 months ago. By meklort, Add arm headers. update makefiles | |
|---|---|
| 1 | /*␊ |
| 2 | * Copyright (c) 2007 Apple Inc. All rights reserved.␊ |
| 3 | */␊ |
| 4 | /*␊ |
| 5 | * FILE_ID: vm_param.h␊ |
| 6 | */␊ |
| 7 | ␊ |
| 8 | /*␊ |
| 9 | *␉ARM machine dependent virtual memory parameters.␊ |
| 10 | */␊ |
| 11 | ␊ |
| 12 | #ifndef␉_MACH_ARM_VM_PARAM_H_␊ |
| 13 | #define _MACH_ARM_VM_PARAM_H_␊ |
| 14 | ␊ |
| 15 | #define BYTE_SIZE␉8␉/* byte size in bits */␊ |
| 16 | ␊ |
| 17 | #define ARM_PGBYTES␉4096␉/* bytes per ARM small page */␊ |
| 18 | #define ARM_PGSHIFT␉12␉/* number of bits to shift for pages */␊ |
| 19 | ␊ |
| 20 | #define PAGE_SIZE ARM_PGBYTES␊ |
| 21 | #define PAGE_SHIFT ARM_PGSHIFT␊ |
| 22 | #define PAGE_MASK (PAGE_SIZE-1)␊ |
| 23 | ␊ |
| 24 | #define VM_PAGE_SIZE␉ARM_PGBYTES␊ |
| 25 | ␊ |
| 26 | #define KERNEL_STACK_SIZE␉(4*ARM_PGBYTES)␊ |
| 27 | #define INTSTACK_SIZE␉␉(4*ARM_PGBYTES)␊ |
| 28 | ␉␉␉␉␉␉/* interrupt stack size */␊ |
| 29 | ␊ |
| 30 | #ifndef __ASSEMBLER__␊ |
| 31 | /*␊ |
| 32 | *␉Round off or truncate to the nearest page. These will work␊ |
| 33 | *␉for either addresses or counts. (i.e. 1 byte rounds to 1 page␊ |
| 34 | *␉bytes.␊ |
| 35 | */␊ |
| 36 | ␊ |
| 37 | ␊ |
| 38 | /*␊ |
| 39 | * ARMtodo: Make user address spaces small for now (to make␊ |
| 40 | * context switch more efficient). Since we don't have VM␊ |
| 41 | * pageout yet, just make it 1GB for now.␊ |
| 42 | */␊ |
| 43 | #define VM_MIN_ADDRESS␉␉((vm_address_t) 0x00000000)␊ |
| 44 | #define VM_MAX_ADDRESS␉␉((vm_address_t) 0x40000000)␊ |
| 45 | ␊ |
| 46 | #define HIGH_EXC_VECTORS␉((vm_address_t) 0xFFFF0000) /* exception vectors virt */␊ |
| 47 | ␊ |
| 48 | #define VM_MIN_KERNEL_ADDRESS␉((vm_address_t) 0x80000000)␊ |
| 49 | #define VM_MIN_KERNEL_AND_KEXT_ADDRESS VM_MIN_KERNEL_ADDRESS␊ |
| 50 | #define VM_MAX_KERNEL_ADDRESS␉((vm_address_t) 0xFFFEFFFF) /* end short of exc vecs */␊ |
| 51 | ␊ |
| 52 | #define VM_KERNEL_ADDRESS(va)␉((((vm_address_t)(va))>=VM_MIN_KERNEL_ADDRESS) && \␊ |
| 53 | (((vm_address_t)(va))<=VM_MAX_KERNEL_ADDRESS))␊ |
| 54 | ␊ |
| 55 | /* system-wide values */␊ |
| 56 | #define MACH_VM_MIN_ADDRESS␉␉((mach_vm_offset_t) 0)␊ |
| 57 | #define MACH_VM_MAX_ADDRESS␉␉((mach_vm_offset_t) VM_MAX_ADDRESS)␊ |
| 58 | ␊ |
| 59 | /*␊ |
| 60 | *␉Physical memory is mapped linearly at an offset virtual memory.␊ |
| 61 | */␊ |
| 62 | extern unsigned long gVirtBase, gPhysBase, gPhysSize;␊ |
| 63 | #define isphysmem(a) (((vm_address_t)(a) - gPhysBase) < gPhysSize)␊ |
| 64 | #define phystokv(a)␉((vm_address_t)(a) - gPhysBase + gVirtBase)␊ |
| 65 | #endif␊ |
| 66 | ␊ |
| 67 | #define SWI_SYSCALL␉0x80␊ |
| 68 | ␊ |
| 69 | #endif␉/* _MACH_ARM_VM_PARAM_H_ */␊ |
| 70 | ␊ |
| 71 | |
