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| Rev 1705 | Rev 1742 | ||
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| Line 65... | Line 65... | ||
| 65 | 65 | ||
| 66 | #define TLB_EXC ((char *) 0x80000000) |
66 | #define TLB_EXC ((char *) 0x80000000) |
| 67 | #define NORM_EXC ((char *) 0x80000180) |
67 | #define NORM_EXC ((char *) 0x80000180) |
| 68 | #define CACHE_EXC ((char *) 0x80000100) |
68 | #define CACHE_EXC ((char *) 0x80000100) |
| 69 | 69 | ||
| - | 70 | ||
| - | 71 | /* Why the linker moves the variable 64K away in assembler |
|
| - | 72 | * when not in .text section ???????? |
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| - | 73 | */ |
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| - | 74 | __address supervisor_sp __attribute__ ((section (".text"))); |
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| - | 75 | /* Stack pointer saved when entering user mode */ |
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| - | 76 | /* TODO: How do we do it on SMP system???? */ |
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| 70 | bootinfo_t bootinfo; |
77 | bootinfo_t bootinfo __attribute__ ((section (".text"))); |
| 71 | 78 | ||
| 72 | void arch_pre_main(void) |
79 | void arch_pre_main(void) |
| 73 | { |
80 | { |
| 74 | /* Setup usermode */ |
81 | /* Setup usermode */ |
| 75 | init.cnt = bootinfo.cnt; |
82 | init.cnt = bootinfo.cnt; |
| Line 118... | Line 125... | ||
| 118 | } |
125 | } |
| 119 | 126 | ||
| 120 | void arch_post_mm_init(void) |
127 | void arch_post_mm_init(void) |
| 121 | { |
128 | { |
| 122 | #ifdef CONFIG_FB |
129 | #ifdef CONFIG_FB |
| 123 | fb_init(0x12000000, 640, 480, 24, 1920); // gxemul framebuffer |
130 | fb_init(0x12000000, 640, 480, 24, 1920); // gxemul framebuffer |
| 124 | #endif |
131 | #endif |
| 125 | sysinfo_set_item_val("machine." STRING(MACHINE),NULL,1); |
132 | sysinfo_set_item_val("machine." STRING(MACHINE),NULL,1); |
| 126 | } |
133 | } |
| 127 | 134 | ||
| 128 | void arch_pre_smp_init(void) |
135 | void arch_pre_smp_init(void) |
| 129 | { |
136 | { |
| 130 | } |
137 | } |
| 131 | 138 | ||
| 132 | void arch_post_smp_init(void) |
139 | void arch_post_smp_init(void) |
| 133 | { |
140 | { |
| 134 | } |
141 | } |
| 135 | 142 | ||
| 136 | /* Stack pointer saved when entering user mode */ |
- | |
| 137 | /* TODO: How do we do it on SMP system???? */ |
- | |
| 138 | - | ||
| 139 | /* Why the linker moves the variable 64K away in assembler |
- | |
| 140 | * when not in .text section ???????? |
- | |
| 141 | */ |
- | |
| 142 | __address supervisor_sp __attribute__ ((section (".text"))); |
- | |
| 143 | - | ||
| 144 | void userspace(uspace_arg_t *kernel_uarg) |
143 | void userspace(uspace_arg_t *kernel_uarg) |
| 145 | { |
144 | { |
| 146 | /* EXL=1, UM=1, IE=1 */ |
145 | /* EXL=1, UM=1, IE=1 */ |
| 147 | cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit | |
146 | cp0_status_write(cp0_status_read() | (cp0_status_exl_exception_bit | |
| 148 | cp0_status_um_bit | |
147 | cp0_status_um_bit | |