3 * ARM7 Virtual Memory Manager Header
10 #define USER_STACK_COMM 0x04000 // Pages to allocate up front
11 #define USER_STACK_SIZE 0x10000 // Stack space
12 #define USER_STACK_TOP 0x78000000
14 #define MM_USER_MIN 0x00001000
15 #define USER_LIB_MAX 0x70000000
16 #define MM_PPD_HANDLES 0x7F800000
17 #define MM_TABLE1USER 0x7FC00000 // 2 GiB - 4 MiB
18 #define MM_TABLE0USER 0x7FE00000 // 2 GiB - 2 MiB
19 #define MM_KSTACK_BASE 0x7FE00000
20 #define MM_KSTACK_END 0x80000000
22 // Page Blocks are 12-bits wide (12 address bits used)
23 // Hence, the table is 16KiB large (and must be so aligned)
24 // and each block addresses 1MiB of data
26 // First level table is aligned to 16KiB (restriction of TTBR reg)
27 // - VMSAv6 uses two TTBR regs, determined by bit 31
29 //#define KERNEL_BASE 0x80000000 // 2GiB
31 #define MM_KHEAP_BASE 0x80800000 // 8MiB of kernel code
32 #define MM_KHEAP_MAX 0xC0000000 // ~1GiB of kernel heap
34 #define MM_MODULE_MIN 0xC0000000 // - 0xD0000000
35 #define MM_MODULE_MAX 0xCF000000
37 #define MM_GLOBALSTACKS 0xCF000000 // Global stacks
38 #define MM_GLOBALSTACKS_END 0xD0000000
40 // PMM Data, giving it 256MiB is overkill, but it's unused atm
41 #define MM_MAXPHYSPAGE (1024*1024)
42 // 2^(32-12) max pages
43 // 8.125 bytes per page (for bitmap allocation)
45 #define MM_PMM_BASE 0xE0000000
46 #define MM_PMM_END 0xF0000000
48 #define MM_HWMAP_BASE 0xF0000000 // Ent 0xF00
49 #define MM_HWMAP_END 0xFE000000
50 #define MM_TMPMAP_BASE 0xFE000000
51 #define MM_TMPMAP_END 0xFF000000
53 #define MM_KERNEL_VFS 0xFF000000 //
54 #define MM_TABLE1KERN 0xFF800000 // - 0x???????? 4MiB
55 //#define MM_TABLE0KERN 0xFFC00000 // - 0xFFE04000 16KiB