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  1. /*
  2.  * Copyright (c) 2005 Jakub Jermar
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29. /** @addtogroup sparc64
  30.  * @{
  31.  */
  32. /** @file
  33.  */
  34.  
  35. #include <arch.h>
  36. #include <debug.h>
  37. #include <config.h>
  38. #include <arch/trap/trap.h>
  39. #include <arch/console.h>
  40. #include <proc/thread.h>
  41. #include <arch/drivers/sgcn.h>
  42. #include <arch/drivers/simics_output.h>
  43. #include <console/console.h>
  44. #include <arch/boot/boot.h>
  45. #include <arch/arch.h>
  46. #include <arch/asm.h>
  47. #include <arch/mm/page.h>
  48. #include <arch/stack.h>
  49. #include <genarch/ofw/ofw_tree.h>
  50. #include <userspace.h>
  51. #include <ddi/irq.h>
  52.  
  53. bootinfo_t bootinfo;
  54.  
  55. /** Perform sparc64 specific initialization before main_bsp() is called. */
  56. void arch_pre_main(void)
  57. {
  58.     /* Copy init task info. */
  59.     init.cnt = bootinfo.taskmap.count;
  60.    
  61.     uint32_t i;
  62.  
  63.     for (i = 0; i < bootinfo.taskmap.count; i++) {
  64.         init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
  65.         init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
  66.     }
  67.    
  68.     /* Copy boot allocations info. */
  69.     ballocs.base = bootinfo.ballocs.base;
  70.     ballocs.size = bootinfo.ballocs.size;
  71.    
  72.     ofw_tree_init(bootinfo.ofw_root);
  73. }
  74.  
  75. /** Perform sparc64 specific initialization before mm is initialized. */
  76. void arch_pre_mm_init(void)
  77. {
  78.     if (config.cpu_active == 1)
  79.         trap_init();
  80. }
  81.  
  82. /** Perform sparc64 specific initialization afterr mm is initialized. */
  83. void arch_post_mm_init(void)
  84. {
  85.     if (config.cpu_active == 1) {
  86.         /*
  87.          * We have 2^11 different interrupt vectors.
  88.          * But we only create 128 buckets.
  89.          */
  90.         irq_init(1 << 11, 128);
  91.  
  92. #if defined (CONFIG_SIMICS_OUTPUT)
  93.         sgcn_init();
  94. #else
  95.         standalone_sparc64_console_init();
  96. #endif
  97.     }
  98. }
  99.  
  100. void arch_post_cpu_init(void)
  101. {
  102. }
  103.  
  104. void arch_pre_smp_init(void)
  105. {
  106. }
  107.  
  108. void arch_post_smp_init(void)
  109. {
  110.     static thread_t *t = NULL;
  111.  
  112.  
  113.     if (!t) {
  114.         /*
  115.              * Create thread that polls keyboard.
  116.              */
  117.         t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
  118.         if (!t)
  119.             panic("cannot create kkbdpoll\n");
  120.         thread_ready(t);
  121.     }
  122. }
  123.  
  124. /** Calibrate delay loop.
  125.  *
  126.  * On sparc64, we implement delay() by waiting for the TICK register to
  127.  * reach a pre-computed value, as opposed to performing some pre-computed
  128.  * amount of instructions of known duration. We set the delay_loop_const
  129.  * to 1 in order to neutralize the multiplication done by delay().
  130.  */
  131. void calibrate_delay_loop(void)
  132. {
  133.     CPU->delay_loop_const = 1;
  134. }
  135.  
  136. /** Wait several microseconds.
  137.  *
  138.  * We assume that interrupts are already disabled.
  139.  *
  140.  * @param t Microseconds to wait.
  141.  */
  142. void asm_delay_loop(const uint32_t usec)
  143. {
  144.     uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
  145.         CPU->arch.clock_frequency / 1000000;
  146.  
  147.     while (tick_read() < stop)
  148.         ;
  149. }
  150.  
  151. /** Switch to userspace. */
  152. void userspace(uspace_arg_t *kernel_uarg)
  153. {
  154.     switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
  155.         ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
  156.         - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
  157.         (uintptr_t) kernel_uarg->uspace_uarg);
  158.  
  159.     for (;;)
  160.         ;
  161.     /* not reached */
  162. }
  163.  
  164. void arch_reboot(void)
  165. {
  166.     // TODO
  167.     while (1);
  168. }
  169.  
  170. /** @}
  171.  */
  172.