source: mainline/kernel/arch/ppc32/src/ppc32.c@ 16d71f41

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 16d71f41 was f5e39a32, checked in by Martin Decky <martin@…>, 19 years ago

ppc32: update for new IRQ subsystem (there is still a bug left)

  • Property mode set to 100644
File size: 3.4 KB
Line 
1/*
2 * Copyright (C) 2005 Martin Decky
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 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup ppc32
30 * @{
31 */
32/** @file
33 */
34
35#include <arch.h>
36#include <arch/boot/boot.h>
37#include <arch/drivers/cuda.h>
38#include <arch/mm/memory_init.h>
39#include <arch/interrupt.h>
40#include <genarch/fb/fb.h>
41#include <userspace.h>
42#include <proc/uarg.h>
43#include <console/console.h>
44#include <ddi/device.h>
45#include <ddi/irq.h>
46#include <arch/drivers/pic.h>
47
48#define IRQ_COUNT 64
49
50bootinfo_t bootinfo;
51
52void arch_pre_main(void)
53{
54 /* Setup usermode */
55 init.cnt = bootinfo.taskmap.count;
56
57 uint32_t i;
58
59 for (i = 0; i < bootinfo.taskmap.count; i++) {
60 init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr);
61 init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
62 }
63}
64
65void arch_pre_mm_init(void)
66{
67 /* Initialize dispatch table */
68 interrupt_init();
69
70 /* Start decrementer */
71 start_decrementer();
72}
73
74void arch_post_mm_init(void)
75{
76 if (config.cpu_active == 1) {
77 /* Initialize framebuffer */
78 fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.bpp, bootinfo.screen.scanline, false);
79
80 /* Initialize IRQ routing */
81 irq_init(IRQ_COUNT, IRQ_COUNT);
82
83 /* Initialize PIC */
84 pic_init(bootinfo.keyboard.addr, PAGE_SIZE);
85
86 /* Initialize I/O controller */
87 cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE);
88
89 /* Merge all zones to 1 big zone */
90 zone_merge_all();
91 }
92}
93
94void arch_post_cpu_init(void)
95{
96}
97
98void arch_pre_smp_init(void)
99{
100 memory_print_map();
101}
102
103void arch_post_smp_init(void)
104{
105}
106
107void calibrate_delay_loop(void)
108{
109}
110
111void userspace(uspace_arg_t *kernel_uarg)
112{
113 userspace_asm((uintptr_t) kernel_uarg->uspace_uarg, (uintptr_t) kernel_uarg->uspace_stack + THREAD_STACK_SIZE - SP_DELTA, (uintptr_t) kernel_uarg->uspace_entry);
114
115 /* Unreachable */
116 for (;;)
117 ;
118}
119
120/** Acquire console back for kernel
121 *
122 */
123void arch_grab_console(void)
124{
125 cuda_grab();
126}
127
128/** Return console to userspace
129 *
130 */
131void arch_release_console(void)
132{
133 cuda_release();
134}
135
136/** @}
137 */
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