Subversion Repositories HelenOS

Rev

Rev 3386 | Rev 4263 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3386 Rev 4153
Line 31... Line 31...
31 
 */
 31 
 */
32 
/** @file
 32 
/** @file
33 
 */
 33 
 */
34 
 
 34 
 
35 
#include <arch.h>
 35 
#include <arch.h>
36 
#include <arch/boot.h>
 - 
 
37 
#include <arch/cp0.h>
 36 
#include <arch/cp0.h>
38 
#include <arch/exception.h>
 37 
#include <arch/exception.h>
39 
#include <mm/as.h>
 38 
#include <mm/as.h>
40 
 
 39 
 
41 
#include <userspace.h>
 40 
#include <userspace.h>
Line 51... Line 50...
51 
#include <console/chardev.h>
 50 
#include <console/chardev.h>
52 
#include <arch/barrier.h>
 51 
#include <arch/barrier.h>
53 
#include <arch/debugger.h>
 52 
#include <arch/debugger.h>
54 
#include <genarch/fb/fb.h>
 53 
#include <genarch/fb/fb.h>
55 
#include <genarch/fb/visuals.h>
 54 
#include <genarch/fb/visuals.h>
- 
 
 55 
#include <genarch/drivers/dsrln/dsrlnin.h>
- 
 
 56 
#include <genarch/drivers/dsrln/dsrlnout.h>
- 
 
 57 
#include <genarch/srln/srln.h>
56 
#include <macros.h>
 58 
#include <macros.h>
- 
 
 59 
#include <config.h>
57 
#include <ddi/device.h>
 60 
#include <string.h>
- 
 
 61 
#include <arch/drivers/msim.h>
58 
 
 62 
 
59 
#include <arch/asm/regname.h>
 63 
#include <arch/asm/regname.h>
60 
 
 64 
 
61 
/* Size of the code jumping to the exception handler code
 65 
/* Size of the code jumping to the exception handler code
62 
 * - J+NOP
 66 
 * - J+NOP
63 
 */
 67 
 */
64 
#define EXCEPTION_JUMP_SIZE    8
 68 
#define EXCEPTION_JUMP_SIZE  8
65 
 
 69 
 
66 
#define TLB_EXC ((char *) 0x80000000)
 70 
#define TLB_EXC    ((char *) 0x80000000)
67 
#define NORM_EXC ((char *) 0x80000180)
 71 
#define NORM_EXC   ((char *) 0x80000180)
68 
#define CACHE_EXC ((char *) 0x80000100)
 72 
#define CACHE_EXC  ((char *) 0x80000100)
69 
 
 73 
 
70 
 
 74 
 
71 
/* Why the linker moves the variable 64K away in assembler
 75 
/* Why the linker moves the variable 64K away in assembler
72 
 * when not in .text section ????????
 76 
 * when not in .text section?
73 
 */
 77 
 */
74 
uintptr_t supervisor_sp __attribute__ ((section (".text")));
 - 
 
- 
 
 78 
 
75 
/* Stack pointer saved when entering user mode */
 79 
/* Stack pointer saved when entering user mode */
76 
/* TODO: How do we do it on SMP system???? */
 - 
 
77 
bootinfo_t bootinfo __attribute__ ((section (".text")));
 80 
uintptr_t supervisor_sp __attribute__ ((section (".text")));
- 
 
 81 
 
- 
 
 82 
count_t cpu_count = 0;
78 
 
 83 
 
- 
 
 84 
/** Performs mips32-specific initialization before main_bsp() is called. */
79 
void arch_pre_main(void)
 85 
void arch_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
80 
{
 86 
{
81 
    /* Setup usermode */
 87 
    /* Setup usermode */
82 
    init.cnt = bootinfo.cnt;
 88 
    init.cnt = bootinfo->cnt;
83 
   
 89 
   
84 
    uint32_t i;
 90 
    count_t i;
- 
 
 91 
    for (i = 0; i < min3(bootinfo->cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS); i++) {
- 
 
 92 
        init.tasks[i].addr = bootinfo->tasks[i].addr;
- 
 
 93 
        init.tasks[i].size = bootinfo->tasks[i].size;
- 
 
 94 
        strncpy(init.tasks[i].name, bootinfo->tasks[i].name,
- 
 
 95 
            CONFIG_TASK_NAME_BUFLEN);
- 
 
 96 
    }
85 
   
 97 
   
86 
    for (i = 0; i < bootinfo.cnt; i++) {
 98 
    for (i = 0; i < CPUMAP_MAX_RECORDS; i++) {
87 
        init.tasks[i].addr = bootinfo.tasks[i].addr;
 99 
        if ((bootinfo->cpumap & (1 << i)) != 0)
88 
        init.tasks[i].size = bootinfo.tasks[i].size;
 100 
            cpu_count++;
89 
    }
 101 
    }
90 
}
 102 
}
91 
 
 103 
 
92 
void arch_pre_mm_init(void)
 104 
void arch_pre_mm_init(void)
93 
{
 105 
{
Line 109... Line 121...
109 
     * Switch to BEV normal level so that exception vectors point to the
 121 
     * Switch to BEV normal level so that exception vectors point to the
110 
     * kernel. Clear the error level.
 122 
     * kernel. Clear the error level.
111 
     */
 123 
     */
112 
    cp0_status_write(cp0_status_read() &
 124 
    cp0_status_write(cp0_status_read() &
113 
        ~(cp0_status_bev_bootstrap_bit | cp0_status_erl_error_bit));
 125 
        ~(cp0_status_bev_bootstrap_bit | cp0_status_erl_error_bit));
114 
 
 126 
   
115 
    /*
 127 
    /*
116 
     * Mask all interrupts
 128 
     * Mask all interrupts
117 
     */
 129 
     */
118 
    cp0_mask_all_int();
 130 
    cp0_mask_all_int();
119 
       
 131 
   
120 
    debugger_init();
 132 
    debugger_init();
121 
}
 133 
}
122 
 
 134 
 
123 
void arch_post_mm_init(void)
 135 
void arch_post_mm_init(void)
124 
{
 136 
{
125 
    interrupt_init();
 137 
    interrupt_init();
126 
    console_init(device_assign_devno());
 - 
 
- 
 
 138 
   
127 
#ifdef CONFIG_FB
 139 
#ifdef CONFIG_FB
128 
    /* GXemul framebuffer */
 140 
    /* GXemul framebuffer */
- 
 
 141 
    fb_properties_t gxemul_prop = {
- 
 
 142 
        .addr = 0x12000000,
- 
 
 143 
        .offset = 0,
- 
 
 144 
        .x = 640,
- 
 
 145 
        .y = 480,
- 
 
 146 
        .scan = 1920,
129 
    fb_init(0x12000000, 640, 480, 1920, VISUAL_RGB_8_8_8);
 147 
        .visual = VISUAL_BGR_8_8_8,
- 
 
 148 
    };
- 
 
 149 
    fb_init(&gxemul_prop);
130 
#endif
 150 
#else
- 
 
 151 
#ifdef CONFIG_MIPS_PRN
131 
    sysinfo_set_item_val("machine." STRING(MACHINE), NULL, 1);
 152 
    dsrlnout_init((ioport8_t *) MSIM_KBD_ADDRESS);
- 
 
 153 
#endif /* CONFIG_MIPS_PRN */
- 
 
 154 
#endif /* CONFIG_FB */
132 
}
 155 
}
133 
 
 156 
 
134 
void arch_post_cpu_init(void)
 157 
void arch_post_cpu_init(void)
135 
{
 158 
{
136 
}
 159 
}
Line 139... Line 162...
139 
{
 162 
{
140 
}
 163 
}
141 
 
 164 
 
142 
void arch_post_smp_init(void)
 165 
void arch_post_smp_init(void)
143 
{
 166 
{
- 
 
 167 
#ifdef CONFIG_MIPS_KBD
- 
 
 168 
    /*
- 
 
 169 
     * Initialize the msim/GXemul keyboard port. Then initialize the serial line
- 
 
 170 
     * module and connect it to the msim/GXemul keyboard. Enable keyboard interrupts.
- 
 
 171 
     */
- 
 
 172 
    indev_t *kbrdin = dsrlnin_init((dsrlnin_t *) MSIM_KBD_ADDRESS, MSIM_KBD_IRQ);
- 
 
 173 
    if (kbrdin) {
- 
 
 174 
        srln_init(kbrdin);
- 
 
 175 
        cp0_unmask_int(MSIM_KBD_IRQ);
- 
 
 176 
    }
- 
 
 177 
   
- 
 
 178 
    /*
- 
 
 179 
     * This is the necessary evil until the userspace driver is entirely
- 
 
 180 
     * self-sufficient.
- 
 
 181 
     */
- 
 
 182 
    sysinfo_set_item_val("kbd", NULL, true);
- 
 
 183 
    sysinfo_set_item_val("kbd.inr", NULL, MSIM_KBD_IRQ);
- 
 
 184 
    sysinfo_set_item_val("kbd.address.virtual", NULL, MSIM_KBD_ADDRESS);
- 
 
 185 
#endif
- 
 
 186 
}
- 
 
 187 
 
- 
 
 188 
void calibrate_delay_loop(void)
- 
 
 189 
{
144 
}
 190 
}
145 
 
 191 
 
146 
void userspace(uspace_arg_t *kernel_uarg)
 192 
void userspace(uspace_arg_t *kernel_uarg)
147 
{
 193 
{
148 
    /* EXL = 1, UM = 1, IE = 1 */
 194 
    /* EXL = 1, UM = 1, IE = 1 */
Line 151... Line 197...
151 
    cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry);
 197 
    cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry);
152 
    userspace_asm(((uintptr_t) kernel_uarg->uspace_stack + PAGE_SIZE),
 198 
    userspace_asm(((uintptr_t) kernel_uarg->uspace_stack + PAGE_SIZE),
153 
        (uintptr_t) kernel_uarg->uspace_uarg,
 199 
        (uintptr_t) kernel_uarg->uspace_uarg,
154 
        (uintptr_t) kernel_uarg->uspace_entry);
 200 
        (uintptr_t) kernel_uarg->uspace_entry);
155 
   
 201 
   
156 
    while (1)
 202 
    while (1);
157 
        ;
 - 
 
158 
}
 203 
}
159 
 
 204 
 
160 
/** Perform mips32 specific tasks needed before the new task is run. */
 205 
/** Perform mips32 specific tasks needed before the new task is run. */
161 
void before_task_runs_arch(void)
 206 
void before_task_runs_arch(void)
162 
{
 207 
{
Line 184... Line 229...
184 
}
 229 
}
185 
 
 230 
 
186 
void arch_reboot(void)
 231 
void arch_reboot(void)
187 
{
 232 
{
188 
    ___halt();
 233 
    ___halt();
- 
 
 234 
    while (1);
189 
   
 235 
}
- 
 
 236 
 
- 
 
 237 
/** Construct function pointer
- 
 
 238 
 *
- 
 
 239 
 * @param fptr   function pointer structure
- 
 
 240 
 * @param addr   function address
- 
 
 241 
 * @param caller calling function address
- 
 
 242 
 *
- 
 
 243 
 * @return address of the function pointer
190 
    while (1)
 244 
 *
191 
        ;
 245 
 */
- 
 
 246 
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
- 
 
 247 
{
- 
 
 248 
    return addr;
192 
}
 249 
}
193 
 
 250 
 
194 
/** @}
 251 
/** @}
195 
 */
 252 
 */