/*
* Copyright (c) 2005 Jakub Jermar
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup sparc64
* @{
*/
/** @file
*/
#include <arch.h>
#include <debug.h>
#include <config.h>
#include <arch/trap/trap.h>
#include <arch/console.h>
#include <proc/thread.h>
#include <console/console.h>
#include <arch/boot/boot.h>
#include <arch/arch.h>
#include <arch/asm.h>
#include <arch/mm/page.h>
#include <arch/stack.h>
#include <genarch/ofw/ofw_tree.h>
#include <userspace.h>
#include <ddi/irq.h>
bootinfo_t bootinfo;
/** Perform sparc64 specific initialization before main_bsp() is called. */
void arch_pre_main(void)
{
/* Copy init task info. */
init.cnt = bootinfo.taskmap.count;
uint32_t i;
for (i = 0; i < bootinfo.taskmap.count; i++) {
init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr;
init.tasks[i].size = bootinfo.taskmap.tasks[i].size;
}
/* Copy boot allocations info. */
ballocs.base = bootinfo.ballocs.base;
ballocs.size = bootinfo.ballocs.size;
ofw_tree_init(bootinfo.ofw_root);
}
/** Perform sparc64 specific initialization before mm is initialized. */
void arch_pre_mm_init(void)
{
if (config.cpu_active == 1)
trap_init();
}
/** Perform sparc64 specific initialization afterr mm is initialized. */
void arch_post_mm_init(void)
{
if (config.cpu_active == 1) {
/*
* We have 2^11 different interrupt vectors.
* But we only create 128 buckets.
*/
irq_init(1 << 11, 128);
standalone_sparc64_console_init();
}
}
void arch_post_cpu_init(void)
{
}
void arch_pre_smp_init(void)
{
}
void arch_post_smp_init(void)
{
static thread_t *t = NULL;
if (!t) {
/*
* Create thread that polls keyboard.
*/
t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true);
if (!t)
panic("Cannot create kkbdpoll.");
thread_ready(t);
}
}
/** Calibrate delay loop.
*
* On sparc64, we implement delay() by waiting for the TICK register to
* reach a pre-computed value, as opposed to performing some pre-computed
* amount of instructions of known duration. We set the delay_loop_const
* to 1 in order to neutralize the multiplication done by delay().
*/
void calibrate_delay_loop(void)
{
CPU->delay_loop_const = 1;
}
/** Wait several microseconds.
*
* We assume that interrupts are already disabled.
*
* @param t Microseconds to wait.
*/
void asm_delay_loop(const uint32_t usec)
{
uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t)
CPU->arch.clock_frequency / 1000000;
while (tick_read() < stop)
;
}
/** Switch to userspace. */
void userspace(uspace_arg_t *kernel_uarg)
{
switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry,
((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE
- (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS),
(uintptr_t) kernel_uarg->uspace_uarg);
for (;;)
;
/* not reached */
}
void arch_reboot(void)
{
// TODO
while (1);
}
/** Construct function pointer
*
* @param fptr function pointer structure
* @param addr function address
* @param caller calling function address
*
* @return address of the function pointer
*
*/
void *arch_construct_function(fncptr_t *fptr, void *addr, void *caller)
{
return addr;
}
/** @}
*/