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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4130 | rimsky | 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 | |||
| 29 | /** @addtogroup sparc64 |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | /** @file |
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| 33 | */ |
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| 34 | |||
| 35 | #include <arch.h> |
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| 36 | #include <debug.h> |
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| 37 | #include <config.h> |
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| 38 | #include <arch/trap/trap.h> |
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| 39 | #include <arch/console.h> |
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| 40 | #include <proc/thread.h> |
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| 41 | #include <console/console.h> |
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| 42 | #include <arch/boot/boot.h> |
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| 43 | #include <arch/arch.h> |
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| 44 | #include <arch/asm.h> |
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| 45 | #include <arch/mm/page.h> |
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| 46 | #include <arch/stack.h> |
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| 47 | #include <userspace.h> |
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| 48 | #include <ddi/irq.h> |
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| 49 | #include <print.h> |
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| 50 | |||
| 51 | bootinfo_t bootinfo; |
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| 52 | |||
| 53 | /** Perform sparc64 specific initialization before mm is initialized. */ |
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| 54 | void arch_pre_mm_init(void) |
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| 55 | { |
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| 56 | if (config.cpu_active == 1) |
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| 57 | trap_init(); |
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| 58 | } |
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| 59 | |||
| 60 | /** Perform sparc64 specific initialization afterr mm is initialized. */ |
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| 61 | void arch_post_mm_init(void) |
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| 62 | { |
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| 63 | if (config.cpu_active == 1) { |
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| 64 | /* |
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| 65 | * We have 2^11 different interrupt vectors. |
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| 66 | * But we only create 128 buckets. |
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| 67 | */ |
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| 68 | irq_init(1 << 11, 128); |
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| 69 | |||
| 70 | standalone_sparc64_console_init(); |
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| 71 | } |
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| 72 | } |
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| 73 | |||
| 74 | void arch_post_cpu_init(void) |
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| 75 | { |
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| 76 | } |
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| 77 | |||
| 78 | void arch_pre_smp_init(void) |
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| 79 | { |
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| 80 | } |
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| 81 | |||
| 82 | void arch_post_smp_init(void) |
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| 83 | { |
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| 84 | static thread_t *t = NULL; |
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| 85 | |||
| 86 | |||
| 87 | if (!t) { |
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| 88 | /* |
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| 89 | * Create thread that polls keyboard. |
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| 90 | */ |
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| 91 | t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
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| 92 | if (!t) |
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| 93 | panic("cannot create kkbdpoll\n"); |
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| 94 | thread_ready(t); |
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| 95 | } |
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| 96 | } |
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| 97 | |||
| 98 | /** Calibrate delay loop. |
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| 99 | * |
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| 100 | * On sparc64, we implement delay() by waiting for the TICK register to |
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| 101 | * reach a pre-computed value, as opposed to performing some pre-computed |
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| 102 | * amount of instructions of known duration. We set the delay_loop_const |
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| 103 | * to 1 in order to neutralize the multiplication done by delay(). |
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| 104 | */ |
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| 105 | void calibrate_delay_loop(void) |
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| 106 | { |
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| 107 | CPU->delay_loop_const = 1; |
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| 108 | } |
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| 109 | |||
| 110 | /** Wait several microseconds. |
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| 111 | * |
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| 112 | * We assume that interrupts are already disabled. |
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| 113 | * |
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| 114 | * @param t Microseconds to wait. |
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| 115 | */ |
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| 116 | void asm_delay_loop(const uint32_t usec) |
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| 117 | { |
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| 118 | uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
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| 119 | CPU->arch.clock_frequency / 1000000; |
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| 120 | |||
| 121 | while (tick_read() < stop) |
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| 122 | ; |
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| 123 | } |
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| 124 | |||
| 125 | /** Switch to userspace. */ |
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| 126 | void userspace(uspace_arg_t *kernel_uarg) |
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| 127 | { |
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| 128 | switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
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| 129 | ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
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| 130 | - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
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| 131 | (uintptr_t) kernel_uarg->uspace_uarg); |
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| 132 | |||
| 133 | for (;;) |
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| 134 | ; |
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| 135 | /* not reached */ |
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| 136 | } |
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| 137 | |||
| 138 | void arch_reboot(void) |
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| 139 | { |
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| 140 | // TODO |
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| 141 | while (1); |
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| 142 | } |
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| 143 | |||
| 144 | /** @} |
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| 145 | */ |