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comparison src/main.c @ 0:83c23a36980d

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Init
author Tatsuki IHA <e125716@ie.u-ryukyu.ac.jp>
date Fri, 26 May 2017 23:11:05 +0900
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children 3d7e1c9a852e
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-1:000000000000 0:83c23a36980d
1 // BSP support routine
2 #include "types.h"
3 #include "defs.h"
4 #include "param.h"
5 #include "arm.h"
6 #include "proc.h"
7 #include "memlayout.h"
8 #include "mmu.h"
9
10 extern void* end;
11
12 struct cpu cpus[NCPU];
13 struct cpu *cpu;
14
15 #define MB (1024*1024)
16
17 void kmain (void)
18 {
19 uint vectbl;
20
21 cpu = &cpus[0];
22
23 uart_init (P2V(UART0));
24
25 // interrrupt vector table is in the middle of first 1MB. We use the left
26 // over for page tables
27 vectbl = P2V_WO (VEC_TBL & PDE_MASK);
28
29 init_vmm ();
30 kpt_freerange (align_up(&end, PT_SZ), vectbl);
31 kpt_freerange (vectbl + PT_SZ, P2V_WO(INIT_KERNMAP));
32 paging_init (INIT_KERNMAP, PHYSTOP);
33
34 kmem_init ();
35 kmem_init2(P2V(INIT_KERNMAP), P2V(PHYSTOP));
36
37 trap_init (); // vector table and stacks for models
38 pic_init (P2V(VIC_BASE)); // interrupt controller
39 uart_enable_rx (); // interrupt for uart
40 consoleinit (); // console
41 pinit (); // process (locks)
42
43 binit (); // buffer cache
44 fileinit (); // file table
45 iinit (); // inode cache
46 ideinit (); // ide (memory block device)
47 timer_init (HZ); // the timer (ticker)
48
49
50 sti ();
51
52 userinit(); // first user process
53 scheduler(); // start running processes
54 }