/*
* Copyright (c) 2007 Michal Kebrt
* 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_arm32
* @{
*/
/** @file
* @brief ARM32 architecture specific functions.
*/
#include <arch.h>
#include <arch/arch.h>
#include <config.h>
#include <genarch/fb/fb.h>
#include <abi/fb/visuals.h>
#include <console/console.h>
#include <ddi/irq.h>
#include <config.h>
#include <interrupt.h>
#include <arch/regutils.h>
#include <arch/machine_func.h>
#include <userspace.h>
#include <macros.h>
#include <str.h>
#include <arch/ras.h>
#include <sysinfo/sysinfo.h>
static void arm32_pre_mm_init(void);
static void arm32_post_mm_init(void);
static void arm32_post_smp_init(void);
arch_ops_t arm32_ops = {
.pre_mm_init = arm32_pre_mm_init,
.post_mm_init = arm32_post_mm_init,
.post_smp_init = arm32_post_smp_init,
};
arch_ops_t *arch_ops = &arm32_ops;
/** Performs arm32-specific initialization before main_bsp() is called. */
void arm32_pre_main(void *entry __attribute__((unused)), bootinfo_t *bootinfo)
{
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);
}
/* Initialize machine_ops pointer. */
machine_ops_init();
}
/** Performs arm32 specific initialization before mm is initialized. */
void arm32_pre_mm_init(void)
{
/* It is not assumed by default */
interrupts_disable();
}
/** Performs arm32 specific initialization afterr mm is initialized. */
void arm32_post_mm_init(void)
{
machine_init();
/* Initialize exception dispatch table */
exception_init();
interrupt_init();
/* Initialize Restartable Atomic Sequences support. */
ras_init();
machine_output_init();
}
/** Performs arm32 specific tasks needed after the multiprocessing is
* initialized.
*
* Currently the function is empty because SMP is not supported.
*/
void arm32_post_smp_init(void)
{
machine_input_init();
const char *platform = machine_get_platform_name();
sysinfo_set_item_data("platform", NULL, (void *) platform,
str_size(platform));
}
/** Performs arm32 specific tasks needed before the new task is run. */
void before_task_runs_arch(void)
{
}
/** Performs arm32 specific tasks needed before the new thread is scheduled.
*
* It sets supervisor_sp.
*/
void before_thread_runs_arch(void)
{
uint8_t *stck;
stck = &THREAD->kstack[STACK_SIZE];
supervisor_sp = (uintptr_t) stck;
}
/** Performs arm32 specific tasks before a thread stops running.
*
* Currently the function is empty.
*/
void after_thread_ran_arch(void)
{
}
/** Halts CPU. */
void cpu_halt(void)
{
while (true)
machine_cpu_halt();
}
/** Reboot. */
void arch_reboot(void)
{
/* not implemented */
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;
}
/** @}
*/