Subversion Repositories HelenOS

Rev

Rev 3743 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3743 Rev 4130
Line 31... Line 31...
31 
 */
 31 
 */
32 
/** @file
 32 
/** @file
33 
 */
 33 
 */
34 
 
 34 
 
35 
#include <arch.h>
 35 
#include <arch.h>
36 
#include <debug.h>
 - 
 
37 
#include <config.h>
 - 
 
38 
#include <arch/trap/trap.h>
 - 
 
39 
#include <arch/console.h>
 - 
 
40 
#include <proc/thread.h>
 - 
 
41 
#include <console/console.h>
 - 
 
42 
#include <arch/boot/boot.h>
 36 
#include <arch/boot/boot.h>
43 
#include <arch/arch.h>
 - 
 
44 
#include <arch/asm.h>
 - 
 
45 
#include <arch/mm/page.h>
 - 
 
46 
#include <arch/stack.h>
 - 
 
47 
#include <genarch/ofw/ofw_tree.h>
 37 
#include <genarch/ofw/ofw_tree.h>
48 
#include <userspace.h>
 - 
 
49 
#include <ddi/irq.h>
 - 
 
50 
#include <print.h>
 - 
 
51 
 
 - 
 
52 
#include <arch/drivers/niagara.h>
 - 
 
53 
 
 - 
 
54 
bootinfo_t bootinfo;
 - 
 
55 
 
 38 
 
56 
/** Perform sparc64 specific initialization before main_bsp() is called. */
 39 
/** Perform sparc64 specific initialization before main_bsp() is called. */
57 
void arch_pre_main(void)
 40 
void arch_pre_main(void)
58 
{
 41 
{
59 
    /* Copy init task info. */
 42 
    /* Copy init task info. */
Line 71... Line 54...
71 
    ballocs.size = bootinfo.ballocs.size;
 54 
    ballocs.size = bootinfo.ballocs.size;
72 
   
 55 
   
73 
    ofw_tree_init(bootinfo.ofw_root);
 56 
    ofw_tree_init(bootinfo.ofw_root);
74 
}
 57 
}
75 
 
 58 
 
76 
/** Perform sparc64 specific initialization before mm is initialized. */
 - 
 
77 
void arch_pre_mm_init(void)
 - 
 
78 
{
 - 
 
79 
    if (config.cpu_active == 1)
 - 
 
80 
        trap_init();
 - 
 
81 
}
 - 
 
82 
 
 - 
 
83 
/** Perform sparc64 specific initialization afterr mm is initialized. */
 - 
 
84 
void arch_post_mm_init(void)
 - 
 
85 
{
 - 
 
86 
    if (config.cpu_active == 1) {
 - 
 
87 
        /*
 - 
 
88 
         * We have 2^11 different interrupt vectors.
 - 
 
89 
         * But we only create 128 buckets.
 - 
 
90 
         */
 - 
 
91 
        irq_init(1 << 11, 128);
 - 
 
92 
 
 - 
 
93 
        standalone_sparc64_console_init();
 - 
 
94 
    }
 - 
 
95 
}
 - 
 
96 
 
 - 
 
97 
void arch_post_cpu_init(void)
 - 
 
98 
{
 - 
 
99 
}
 - 
 
100 
 
 - 
 
101 
void arch_pre_smp_init(void)
 - 
 
102 
{
 - 
 
103 
}
 - 
 
104 
 
 - 
 
105 
void arch_post_smp_init(void)
 - 
 
106 
{
 - 
 
107 
    static thread_t *t = NULL;
 - 
 
108 
 
 - 
 
109 
 
 - 
 
110 
    if (!t) {
 - 
 
111 
        /*
 - 
 
112 
             * Create thread that polls keyboard.
 - 
 
113 
             */
 - 
 
114 
        t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
 - 
 
115 
        if (!t)
 - 
 
116 
            panic("cannot create kkbdpoll\n");
 - 
 
117 
        thread_ready(t);
 - 
 
118 
    }
 - 
 
119 
}
 - 
 
120 
 
 - 
 
121 
/** Calibrate delay loop.
 - 
 
122 
 *
 - 
 
123 
 * On sparc64, we implement delay() by waiting for the TICK register to
 - 
 
124 
 * reach a pre-computed value, as opposed to performing some pre-computed
 - 
 
125 
 * amount of instructions of known duration. We set the delay_loop_const
 - 
 
126 
 * to 1 in order to neutralize the multiplication done by delay().
 - 
 
127 
 */
 - 
 
128 
void calibrate_delay_loop(void)
 - 
 
129 
{
 - 
 
130 
    CPU->delay_loop_const = 1;
 - 
 
131 
}
 - 
 
132 
 
 - 
 
133 
/** Wait several microseconds.
 - 
 
134 
 *
 - 
 
135 
 * We assume that interrupts are already disabled.
 - 
 
136 
 *
 - 
 
137 
 * @param t Microseconds to wait.
 - 
 
138 
 */
 - 
 
139 
void asm_delay_loop(const uint32_t usec)
 - 
 
140 
{
 - 
 
141 
    uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
 - 
 
142 
        CPU->arch.clock_frequency / 1000000;
 - 
 
143 
 
 - 
 
144 
    while (tick_read() < stop)
 - 
 
145 
        ;
 - 
 
146 
}
 - 
 
147 
 
 - 
 
148 
/** Switch to userspace. */
 - 
 
149 
void userspace(uspace_arg_t *kernel_uarg)
 - 
 
150 
{
 - 
 
151 
    switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
 - 
 
152 
        ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
 - 
 
153 
        - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
 - 
 
154 
        (uintptr_t) kernel_uarg->uspace_uarg);
 - 
 
155 
 
 - 
 
156 
    for (;;)
 - 
 
157 
        ;
 - 
 
158 
    /* not reached */
 - 
 
159 
}
 - 
 
160 
 
 - 
 
161 
void arch_reboot(void)
 - 
 
162 
{
 - 
 
163 
    // TODO
 - 
 
164 
    while (1);
 - 
 
165 
}
 - 
 
166 
 
 - 
 
167 
/** @}
 59 
/** @}
168 
 */
 60 
 */