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| Rev | Author | Line No. | Line |
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| 36 | jermar | 1 | /* |
| 2 | * Copyright (C) 2005 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 78 | jermar | 29 | #include <arch.h> |
| 30 | #include <arch/ski/ski.h> |
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| 435 | jermar | 31 | #include <arch/drivers/it.h> |
| 470 | jermar | 32 | #include <arch/interrupt.h> |
| 33 | #include <arch/barrier.h> |
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| 919 | jermar | 34 | #include <arch/asm.h> |
| 35 | #include <arch/register.h> |
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| 470 | jermar | 36 | #include <arch/types.h> |
| 919 | jermar | 37 | #include <arch/context.h> |
| 962 | jermar | 38 | #include <arch/stack.h> |
| 919 | jermar | 39 | #include <arch/mm/page.h> |
| 40 | #include <mm/as.h> |
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| 41 | #include <config.h> |
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| 42 | #include <userspace.h> |
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| 519 | vana | 43 | #include <console/console.h> |
| 1078 | jermar | 44 | #include <proc/uarg.h> |
| 1121 | jermar | 45 | #include <syscall/syscall.h> |
| 519 | vana | 46 | |
| 1548 | vana | 47 | static int kbd_release=0; |
| 48 | |||
| 1223 | jermar | 49 | void arch_pre_main(void) |
| 50 | { |
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| 51 | /* Setup usermode init tasks. */ |
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| 1601 | jermar | 52 | init.cnt = 8; |
| 1223 | jermar | 53 | init.tasks[0].addr = INIT0_ADDRESS; |
| 54 | init.tasks[0].size = INIT0_SIZE; |
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| 1495 | jermar | 55 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
| 56 | init.tasks[1].size = INIT0_SIZE; |
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| 57 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
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| 58 | init.tasks[2].size = INIT0_SIZE; |
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| 59 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
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| 60 | init.tasks[3].size = INIT0_SIZE; |
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| 61 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
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| 62 | init.tasks[4].size = INIT0_SIZE; |
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| 1541 | jermar | 63 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
| 64 | init.tasks[5].size = INIT0_SIZE; |
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| 1601 | jermar | 65 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
| 66 | init.tasks[6].size = INIT0_SIZE; |
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| 67 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
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| 68 | init.tasks[7].size = INIT0_SIZE; |
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| 1223 | jermar | 69 | } |
| 70 | |||
| 78 | jermar | 71 | void arch_pre_mm_init(void) |
| 72 | { |
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| 470 | jermar | 73 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
| 74 | iva_write((__address) &ivt); |
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| 75 | srlz_d(); |
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| 76 | |||
| 102 | jermar | 77 | ski_init_console(); |
| 1223 | jermar | 78 | it_init(); |
| 78 | jermar | 79 | } |
| 80 | |||
| 81 | void arch_post_mm_init(void) |
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| 82 | { |
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| 1507 | vana | 83 | ski_set_console_sysinfo(); |
| 78 | jermar | 84 | } |
| 503 | jermar | 85 | |
| 86 | void arch_pre_smp_init(void) |
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| 87 | { |
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| 88 | } |
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| 89 | |||
| 90 | void arch_post_smp_init(void) |
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| 91 | { |
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| 92 | } |
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| 919 | jermar | 93 | |
| 94 | /** Enter userspace and never return. */ |
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| 1078 | jermar | 95 | void userspace(uspace_arg_t *kernel_uarg) |
| 919 | jermar | 96 | { |
| 97 | psr_t psr; |
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| 98 | rsc_t rsc; |
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| 99 | |||
| 100 | psr.value = psr_read(); |
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| 101 | psr.cpl = PL_USER; |
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| 102 | psr.i = true; /* start with interrupts enabled */ |
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| 103 | psr.ic = true; |
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| 104 | psr.ri = 0; /* start with instruction #0 */ |
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| 993 | jermar | 105 | psr.bn = 1; /* start in bank 0 */ |
| 919 | jermar | 106 | |
| 107 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
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| 108 | rsc.loadrs = 0; |
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| 109 | rsc.be = false; |
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| 110 | rsc.pl = PL_USER; |
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| 111 | rsc.mode = 3; /* eager mode */ |
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| 112 | |||
| 1078 | jermar | 113 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
| 114 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
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| 1168 | vana | 115 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
| 1078 | jermar | 116 | (__address) kernel_uarg->uspace_uarg, |
| 117 | psr.value, rsc.value); |
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| 919 | jermar | 118 | |
| 119 | while (1) { |
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| 120 | ; |
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| 121 | } |
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| 122 | } |
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| 1121 | jermar | 123 | |
| 124 | /** Set thread-local-storage pointer. |
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| 125 | * |
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| 126 | * We use r13 (a.k.a. tp) for this purpose. |
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| 127 | */ |
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| 128 | __native sys_tls_set(__native addr) |
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| 129 | { |
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| 130 | return 0; |
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| 131 | } |
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| 1474 | palkovsky | 132 | |
| 133 | /** Acquire console back for kernel |
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| 134 | * |
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| 135 | */ |
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| 136 | void arch_grab_console(void) |
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| 137 | { |
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| 1548 | vana | 138 | kbd_release=kbd_uspace; |
| 139 | kbd_uspace=0; |
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| 1474 | palkovsky | 140 | } |
| 141 | /** Return console to userspace |
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| 142 | * |
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| 143 | */ |
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| 144 | void arch_release_console(void) |
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| 145 | { |
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| 1548 | vana | 146 | kbd_uspace=kbd_release; |
| 1474 | palkovsky | 147 | } |