Subversion Repositories HelenOS

Rev

Rev 2722 | Rev 3228 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2722 Rev 3136
Line 48... Line 48...
48
#include <sysinfo/sysinfo.h>
48
#include <sysinfo/sysinfo.h>
49
 
49
 
50
#include <arch/interrupt.h>
50
#include <arch/interrupt.h>
51
#include <arch/drivers/arc.h>
51
#include <arch/drivers/arc.h>
52
#include <console/chardev.h>
52
#include <console/chardev.h>
-
 
53
#include <arch/barrier.h>
53
#include <arch/debugger.h>
54
#include <arch/debugger.h>
54
#include <genarch/fb/fb.h>
55
#include <genarch/fb/fb.h>
55
#include <genarch/fb/visuals.h>
56
#include <genarch/fb/visuals.h>
56
#include <macros.h>
57
#include <macros.h>
57
#include <ddi/device.h>
58
#include <ddi/device.h>
Line 98... Line 99...
98
    exception_init();
99
    exception_init();
99
    arc_init();
100
    arc_init();
100
 
101
 
101
    /* Copy the exception vectors to the right places */
102
    /* Copy the exception vectors to the right places */
102
    memcpy(TLB_EXC, (char *) tlb_refill_entry, EXCEPTION_JUMP_SIZE);
103
    memcpy(TLB_EXC, (char *) tlb_refill_entry, EXCEPTION_JUMP_SIZE);
-
 
104
    smc_coherence_block(TLB_EXC, EXCEPTION_JUMP_SIZE);
103
    memcpy(NORM_EXC, (char *) exception_entry, EXCEPTION_JUMP_SIZE);
105
    memcpy(NORM_EXC, (char *) exception_entry, EXCEPTION_JUMP_SIZE);
-
 
106
    smc_coherence_block(NORM_EXC, EXCEPTION_JUMP_SIZE);
104
    memcpy(CACHE_EXC, (char *) cache_error_entry, EXCEPTION_JUMP_SIZE);
107
    memcpy(CACHE_EXC, (char *) cache_error_entry, EXCEPTION_JUMP_SIZE);
-
 
108
    smc_coherence_block(CACHE_EXC, EXCEPTION_JUMP_SIZE);
105
   
109
   
106
    /*
110
    /*
107
     * Switch to BEV normal level so that exception vectors point to the kernel.
111
     * Switch to BEV normal level so that exception vectors point to the
108
     * Clear the error level.
112
     * kernel. Clear the error level.
109
     */
113
     */
-
 
114
    cp0_status_write(cp0_status_read() &
110
    cp0_status_write(cp0_status_read() & ~(cp0_status_bev_bootstrap_bit|cp0_status_erl_error_bit));
115
        ~(cp0_status_bev_bootstrap_bit | cp0_status_erl_error_bit));
111
 
116
 
112
    /*
117
    /*
113
     * Mask all interrupts
118
     * Mask all interrupts
114
     */
119
     */
115
    cp0_mask_all_int();
120
    cp0_mask_all_int();
Line 120... Line 125...
120
void arch_post_mm_init(void)
125
void arch_post_mm_init(void)
121
{
126
{
122
    interrupt_init();
127
    interrupt_init();
123
    console_init(device_assign_devno());
128
    console_init(device_assign_devno());
124
#ifdef CONFIG_FB
129
#ifdef CONFIG_FB
-
 
130
    /* GXemul framebuffer */
125
    fb_init(0x12000000, 640, 480, 1920, VISUAL_RGB_8_8_8); // gxemul framebuffer
131
    fb_init(0x12000000, 640, 480, 1920, VISUAL_RGB_8_8_8);
126
#endif
132
#endif
127
    sysinfo_set_item_val("machine." STRING(MACHINE), NULL, 1);
133
    sysinfo_set_item_val("machine." STRING(MACHINE), NULL, 1);
128
}
134
}
129
 
135
 
130
void arch_post_cpu_init(void)
136
void arch_post_cpu_init(void)
Line 141... Line 147...
141
 
147
 
142
void userspace(uspace_arg_t *kernel_uarg)
148
void userspace(uspace_arg_t *kernel_uarg)
143
{
149
{
144
    /* EXL = 1, UM = 1, IE = 1 */
150
    /* EXL = 1, UM = 1, IE = 1 */
145
    cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit |
151
    cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit |
146
        cp0_status_um_bit | cp0_status_ie_enabled_bit));
152
        cp0_status_um_bit | cp0_status_ie_enabled_bit));
147
    cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry);
153
    cp0_epc_write((uintptr_t) kernel_uarg->uspace_entry);
148
    userspace_asm(((uintptr_t) kernel_uarg->uspace_stack + PAGE_SIZE),
154
    userspace_asm(((uintptr_t) kernel_uarg->uspace_stack + PAGE_SIZE),
149
        (uintptr_t) kernel_uarg->uspace_uarg,
155
        (uintptr_t) kernel_uarg->uspace_uarg,
150
        (uintptr_t) kernel_uarg->uspace_entry);
156
        (uintptr_t) kernel_uarg->uspace_entry);
151
   
157
   
152
    while (1);
158
    while (1)
-
 
159
        ;
153
}
160
}
154
 
161
 
155
/** Perform mips32 specific tasks needed before the new task is run. */
162
/** Perform mips32 specific tasks needed before the new task is run. */
156
void before_task_runs_arch(void)
163
void before_task_runs_arch(void)
157
{
164
{
158
}
165
}
159
 
166
 
160
/** Perform mips32 specific tasks needed before the new thread is scheduled. */
167
/** Perform mips32 specific tasks needed before the new thread is scheduled. */
161
void before_thread_runs_arch(void)
168
void before_thread_runs_arch(void)
162
{
169
{
163
    supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE-SP_DELTA];
170
    supervisor_sp = (uintptr_t) &THREAD->kstack[THREAD_STACK_SIZE -
-
 
171
        SP_DELTA];
164
}
172
}
165
 
173
 
166
void after_thread_ran_arch(void)
174
void after_thread_ran_arch(void)
167
{
175
{
168
}
176
}
Line 180... Line 188...
180
void arch_reboot(void)
188
void arch_reboot(void)
181
{
189
{
182
    if (!arc_reboot())
190
    if (!arc_reboot())
183
        ___halt();
191
        ___halt();
184
   
192
   
185
    while (1);
193
    while (1)
-
 
194
        ;
186
}
195
}
187
 
196
 
188
/** @}
197
/** @}
189
 */
198
 */