Annotation of prex-old/sys/arch/i386/pc/platform.h, Revision 1.1.1.1.2.1
1.1 nbrk 1: /*
2: * Copyright (c) 2007, Kohsuke Ohtani
3: * All rights reserved.
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
8: * 1. Redistributions of source code must retain the above copyright
9: * notice, this list of conditions and the following disclaimer.
10: * 2. Redistributions in binary form must reproduce the above copyright
11: * notice, this list of conditions and the following disclaimer in the
12: * documentation and/or other materials provided with the distribution.
13: * 3. Neither the name of the author nor the names of any co-contributors
14: * may be used to endorse or promote products derived from this software
15: * without specific prior written permission.
16: *
17: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27: * SUCH DAMAGE.
28: */
29:
30: #ifndef _PC_PLATFORM_H
31: #define _PC_PLATFORM_H
32:
33: /*
34: * Memory location
35: */
36:
37: #ifdef CONFIG_MMU
38: #define PAGE_OFFSET 0x80000000
39: #else
40: #define PAGE_OFFSET 0x00000000
41: #endif
42:
43: #define KERNEL_BASE PAGE_OFFSET
44: #define KERNEL_MAX 0xffffffff
45: #define USER_BASE 0x00000000
46: #define USER_MAX 0x80000000
47:
48: #define BOOT_PTE0 0x00001000
49: #define INT_STACK 0x00001000
50: #define BOOT_INFO 0x00002000
51: #define BOOT_STACK 0x00002800
52: #define KERNEL_PGD 0x00003000
53:
54: #ifdef CONFIG_MMU
55: #define RESERVED_BASE 0x00000000
56: #define RESERVED_MAX 0x00004000
57: #else
58: #define RESERVED_BASE 0x00000000
59: #define RESERVED_MAX 0x00003000
60: #endif
61:
62:
63: #ifndef __ASSEMBLY__
64:
65: /*
66: * Page mapping
67: */
1.1.1.1.2.1! nbrk 68: #define phys_to_virt(pa) (void *)((paddr_t)(pa) + PAGE_OFFSET)
! 69: #define virt_to_phys(va) (void *)((vaddr_t)(va) - PAGE_OFFSET)
1.1 nbrk 70:
71: /*
72: * Kernel/User Locations
73: */
74: #if KERNEL_BASE == 0
75: #define kern_area(addr) 1
76: #else
1.1.1.1.2.1! nbrk 77: #define kern_area(addr) ((vaddr_t)(addr) >= (vaddr_t)KERNEL_BASE)
1.1 nbrk 78: #endif
1.1.1.1.2.1! nbrk 79: #define user_area(addr) ((vaddr_t)(addr) < (vaddr_t)USER_MAX)
1.1 nbrk 80:
81: /*
82: * Interrupt
83: */
84: #define NIRQS 16 /* number of interrupt vectors */
85:
1.1.1.1.2.1! nbrk 86: extern void interrupt_enable(void);
! 87: extern void interrupt_disable(void);
! 88: extern void interrupt_save(int *);
! 89: extern void interrupt_restore(int);
1.1 nbrk 90: extern void interrupt_mask(int);
91: extern void interrupt_unmask(int, int);
92: extern void interrupt_setup(int, int);
1.1.1.1.2.1! nbrk 93: extern void interrupt_handler(struct cpu_regs *);
1.1 nbrk 94: extern void interrupt_init(void);
95:
96: /* Interrupt mode for interrupt_setup() */
97: #define IMODE_EDGE 0 /* edge trigger */
98: #define IMODE_LEVEL 1 /* level trigger */
99:
100: extern void clock_init(void);
101:
102: extern void diag_init(void);
103: extern void diag_print(char *);
104:
105: extern void machine_reset(void);
106: extern void machine_init(void);
1.1.1.1.2.1! nbrk 107: extern void machine_idle(void);
1.1 nbrk 108:
109: #endif /* !__ASSEMBLY__ */
110: #endif /* !_PC_PLATFORM_H */
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