1 #ifndef __LUNAIX_CONSTANTS_H
2 #define __LUNAIX_CONSTANTS_H
4 #define PG_SIZE_BITS 12
5 #define PG_SIZE (1 << PG_SIZE_BITS)
6 #define PG_INDEX_BITS 10
8 #define MEM_1MB 0x100000
9 #define MEM_4MB 0x400000
11 #define USER_START 0x400000
13 #define KSTACK_SIZE MEM_1MB
14 #define KSTACK_START (USER_START - KSTACK_SIZE)
15 #define KSTACK_TOP ((USER_START - 1) & ~0xf)
17 #define KERNEL_MM_BASE 0xC0000000
19 #define KCODE_MAX_SIZE MEM_4MB
20 // #define KHEAP_START (KERNEL_MM_BASE + KCODE_MAX_SIZE)
21 // #define KHEAP_SIZE_MB 256
23 #define VGA_FRAMEBUFFER 0xB8000
25 #define KCODE_SEG 0x08
26 #define KDATA_SEG 0x10
28 #define USTACK_SIZE MEM_4MB
29 #define USTACK_TOP 0x9ffffff0
30 #define USTACK_END (0x9fffffff - USTACK_SIZE + 1)
31 #define UMMAP_START 0x4D000000
32 #define UMMAP_END (USTACK_END - MEM_4MB)
36 // From Linux kernel v2.6.0 <kernel.h:194>
38 * container_of - cast a member of a structure out to the containing structure
40 * @ptr: the pointer to the member.
41 * @type: the type of the container struct this is embedded in.
42 * @member: the name of the member within the struct.
45 #define container_of(ptr, type, member) \
47 const typeof(((type*)0)->member)* __mptr = (ptr); \
48 (ptr) ? (type*)((char*)__mptr - offsetof(type, member)) : 0; \
52 #endif /* __LUNAIX_CONSTANTS_H */