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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 | |||
| 1704 | cejka | 29 | /** @addtogroup ia64 ia64 |
| 1702 | cejka | 30 | * @ingroup others |
| 31 | * @{ |
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| 32 | */ |
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| 33 | /** @file |
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| 34 | */ |
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| 35 | |||
| 78 | jermar | 36 | #include <arch.h> |
| 37 | #include <arch/ski/ski.h> |
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| 435 | jermar | 38 | #include <arch/drivers/it.h> |
| 470 | jermar | 39 | #include <arch/interrupt.h> |
| 40 | #include <arch/barrier.h> |
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| 919 | jermar | 41 | #include <arch/asm.h> |
| 42 | #include <arch/register.h> |
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| 470 | jermar | 43 | #include <arch/types.h> |
| 919 | jermar | 44 | #include <arch/context.h> |
| 962 | jermar | 45 | #include <arch/stack.h> |
| 919 | jermar | 46 | #include <arch/mm/page.h> |
| 47 | #include <mm/as.h> |
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| 48 | #include <config.h> |
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| 49 | #include <userspace.h> |
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| 519 | vana | 50 | #include <console/console.h> |
| 1078 | jermar | 51 | #include <proc/uarg.h> |
| 1121 | jermar | 52 | #include <syscall/syscall.h> |
| 519 | vana | 53 | |
| 1548 | vana | 54 | static int kbd_release=0; |
| 55 | |||
| 1223 | jermar | 56 | void arch_pre_main(void) |
| 57 | { |
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| 58 | /* Setup usermode init tasks. */ |
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| 1601 | jermar | 59 | init.cnt = 8; |
| 1223 | jermar | 60 | init.tasks[0].addr = INIT0_ADDRESS; |
| 61 | init.tasks[0].size = INIT0_SIZE; |
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| 1495 | jermar | 62 | init.tasks[1].addr = INIT0_ADDRESS + 0x400000; |
| 63 | init.tasks[1].size = INIT0_SIZE; |
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| 64 | init.tasks[2].addr = INIT0_ADDRESS + 0x800000; |
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| 65 | init.tasks[2].size = INIT0_SIZE; |
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| 66 | init.tasks[3].addr = INIT0_ADDRESS + 0xc00000; |
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| 67 | init.tasks[3].size = INIT0_SIZE; |
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| 68 | init.tasks[4].addr = INIT0_ADDRESS + 0x1000000; |
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| 69 | init.tasks[4].size = INIT0_SIZE; |
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| 1541 | jermar | 70 | init.tasks[5].addr = INIT0_ADDRESS + 0x1400000; |
| 71 | init.tasks[5].size = INIT0_SIZE; |
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| 1601 | jermar | 72 | init.tasks[6].addr = INIT0_ADDRESS + 0x1800000; |
| 73 | init.tasks[6].size = INIT0_SIZE; |
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| 74 | init.tasks[7].addr = INIT0_ADDRESS + 0x1c00000; |
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| 75 | init.tasks[7].size = INIT0_SIZE; |
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| 1223 | jermar | 76 | } |
| 77 | |||
| 78 | jermar | 78 | void arch_pre_mm_init(void) |
| 79 | { |
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| 470 | jermar | 80 | /* Set Interruption Vector Address (i.e. location of interruption vector table). */ |
| 81 | iva_write((__address) &ivt); |
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| 82 | srlz_d(); |
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| 83 | |||
| 102 | jermar | 84 | ski_init_console(); |
| 1223 | jermar | 85 | it_init(); |
| 78 | jermar | 86 | } |
| 87 | |||
| 88 | void arch_post_mm_init(void) |
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| 89 | { |
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| 1507 | vana | 90 | ski_set_console_sysinfo(); |
| 78 | jermar | 91 | } |
| 503 | jermar | 92 | |
| 93 | void arch_pre_smp_init(void) |
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| 94 | { |
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| 95 | } |
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| 96 | |||
| 97 | void arch_post_smp_init(void) |
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| 98 | { |
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| 99 | } |
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| 919 | jermar | 100 | |
| 101 | /** Enter userspace and never return. */ |
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| 1078 | jermar | 102 | void userspace(uspace_arg_t *kernel_uarg) |
| 919 | jermar | 103 | { |
| 104 | psr_t psr; |
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| 105 | rsc_t rsc; |
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| 106 | |||
| 107 | psr.value = psr_read(); |
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| 108 | psr.cpl = PL_USER; |
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| 109 | psr.i = true; /* start with interrupts enabled */ |
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| 110 | psr.ic = true; |
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| 111 | psr.ri = 0; /* start with instruction #0 */ |
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| 993 | jermar | 112 | psr.bn = 1; /* start in bank 0 */ |
| 919 | jermar | 113 | |
| 114 | __asm__ volatile ("mov %0 = ar.rsc\n" : "=r" (rsc.value)); |
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| 115 | rsc.loadrs = 0; |
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| 116 | rsc.be = false; |
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| 117 | rsc.pl = PL_USER; |
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| 118 | rsc.mode = 3; /* eager mode */ |
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| 119 | |||
| 1078 | jermar | 120 | switch_to_userspace((__address) kernel_uarg->uspace_entry, |
| 121 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE-ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT), |
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| 1168 | vana | 122 | ((__address) kernel_uarg->uspace_stack)+PAGE_SIZE, |
| 1078 | jermar | 123 | (__address) kernel_uarg->uspace_uarg, |
| 124 | psr.value, rsc.value); |
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| 919 | jermar | 125 | |
| 126 | while (1) { |
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| 127 | ; |
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| 128 | } |
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| 129 | } |
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| 1121 | jermar | 130 | |
| 131 | /** Set thread-local-storage pointer. |
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| 132 | * |
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| 133 | * We use r13 (a.k.a. tp) for this purpose. |
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| 134 | */ |
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| 135 | __native sys_tls_set(__native addr) |
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| 136 | { |
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| 137 | return 0; |
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| 138 | } |
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| 1474 | palkovsky | 139 | |
| 140 | /** Acquire console back for kernel |
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| 141 | * |
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| 142 | */ |
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| 143 | void arch_grab_console(void) |
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| 144 | { |
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| 1548 | vana | 145 | kbd_release=kbd_uspace; |
| 146 | kbd_uspace=0; |
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| 1474 | palkovsky | 147 | } |
| 148 | /** Return console to userspace |
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| 149 | * |
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| 150 | */ |
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| 151 | void arch_release_console(void) |
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| 152 | { |
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| 1548 | vana | 153 | kbd_uspace=kbd_release; |
| 1474 | palkovsky | 154 | } |
| 1702 | cejka | 155 | |
| 156 | /** @} |
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| 157 | */ |
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| 158 |