/*
* 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 kernel_sparc64
* @{
*/
/** @file
*/
#include <arch.h>
#include <arch/arch.h>
#include <debug.h>
#include <config.h>
#include <macros.h>
#include <arch/trap/trap.h>
#include <arch/console.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 <interrupt.h>
#include <genarch/ofw/ofw_tree.h>
#include <userspace.h>
#include <ddi/irq.h>
#include <stdbool.h>
#include <str.h>
#include <sysinfo/sysinfo.h>
static void sun4u_pre_mm_init(void);
static void sun4u_post_mm_init(void);
static void sun4u_post_smp_init(void);
arch_ops_t sun4u_ops = {
.pre_mm_init = sun4u_pre_mm_init,
.post_mm_init = sun4u_post_mm_init,
.post_smp_init = sun4u_post_smp_init,
};
arch_ops_t *sparc64_ops = &sun4u_ops;
memmap_t memmap;
/** Perform sparc64-specific initialization before main_bsp() is called. */
void sparc64_pre_main(bootinfo_t *bootinfo)
{
/* Copy init task info. */
init.cnt = min3(bootinfo->taskmap.cnt, TASKMAP_MAX_RECORDS, CONFIG_INIT_TASKS);
size_t i;
for (i = 0; i < init.cnt; i++) {
init.tasks[i].paddr = KA2PA(bootinfo->taskmap.tasks[i].addr);
init.tasks[i].size = bootinfo->taskmap.tasks[i].size;
str_cpy(init.tasks[i].name, CONFIG_TASK_NAME_BUFLEN,
bootinfo->taskmap.tasks[i].name);
}
/* Copy physical memory map. */
memmap.total = bootinfo->memmap.total;
memmap.cnt = min(bootinfo->memmap.cnt, MEMMAP_MAX_RECORDS);
for (i = 0; i < memmap.cnt; i++) {
memmap.zones[i].start = bootinfo->memmap.zones[i].start;
memmap.zones[i].size = bootinfo->memmap.zones[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 sun4u_pre_mm_init(void)
{
if (config.cpu_active == 1) {
trap_init();
exc_arch_init();
}
}
/** Perform sparc64 specific initialization afterr mm is initialized. */
void sun4u_post_mm_init(void)
{
if (config.cpu_active == 1) {
/* Map OFW information into sysinfo */
ofw_sysinfo_map();
/*
* We have 2^11 different interrupt vectors.
* But we only create 128 buckets.
*/
irq_init(1 << 11, 128);
}
}
void sun4u_post_smp_init(void)
{
/* Currently the only supported platform for sparc64/sun4u is 'sun4u'. */
static const char *platform = "sun4u";
sysinfo_set_item_data("platform", NULL, (void *) platform,
str_size(platform));
standalone_sparc64_console_init();
}
/** 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)
;
}
uintptr_t arch_get_initial_sp(uintptr_t stack_base, uintptr_t stack_size)
{
return ALIGN_DOWN(stack_base + stack_size - STACK_WINDOW_SAVE_AREA_SIZE - STACK_ARG_SAVE_AREA_SIZE, 16) - STACK_BIAS;
}
/** Switch to userspace. */
void userspace(uintptr_t pc, uintptr_t sp)
{
(void) interrupts_disable();
switch_to_userspace(pc, sp, 0);
/* Not reached */
while (true)
;
}
void arch_reboot(void)
{
// TODO
while (true)
;
}
/** 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;
}
void irq_initialize_arch(irq_t *irq)
{
(void) irq;
}
/** @}
*/