/**
* Kernel state reset before syscall tests.
*/
void reset() {
initialize_memory();
initialize_tasks();
initialize_scheduling();
initialize_messaging();
t0 = task_create(0, 0, MEDIUM);
t1 = task_create(0, 0, MEDIUM);
t2 = task_create(0, 1, MEDIUM);
}
void initialize_kernel() {
bwsetfifo(COM2, OFF);
void (**syscall_handler)() = (void (**)())0x28;
*syscall_handler = &kernel_enter;
void (**irq_handler)() = (void (**)())0x38;
*irq_handler = &irq_enter;
initialize_cache();
initialize_memory();
initialize_fine_timer();
initialize_scheduling();
initialize_tasks();
initialize_messaging();
initialize_events();
initialize_waiting();
}
void start(uint32_t* modulep, void* physbase, void* physfree)
{
struct smap_t {
uint64_t base, length;
uint32_t type;
}__attribute__((packed)) *smap;
while(modulep[0] != 0x9001) modulep += modulep[1]+2;
for(smap = (struct smap_t*)(modulep+2); smap < (struct smap_t*)((char*)modulep+modulep[1]+2*4); ++smap) {
if (smap->type == 1 /* memory */ && smap->length != 0) {
//print_out("Available Physical Memory [%x-%x]\n", smap->base, smap->base + smap->length);
total = smap->base + smap->length;
}
}
//print_out("tarfs in [%p:%p]\n", &_binary_tarfs_start, &_binary_tarfs_end);
total = (total/1048576) +1;
//print_out(" The Highest memory is %d ",total);
//print_out("This is the address of physfree -- %p ", physfree);
initialize_free_pages();
initialize_tasks();
register_fs((uint64_t)&_binary_tarfs_start);
create_page_tables(physfree);
//print_out(" Successfully created page tables");
__asm__("cli;");
file = parse_elf("bin/shell");
load_file_list = file->load_list;
load_shell();
/*
file = parse_elf("bin/hello");
load_file_list = file->load_list;
load_file();
*/
file = parse_elf("bin/try");
load_file_list = file->load_list;
load_file();
switch_to(0);
// kernel starts here
while(1);
}
int main()
{
global_time = 0;
initialize_battery();
initialize_task_list();
initialize_tasks();
while (true) {
schedule();
global_time++;
// printf ("%d\t", global_time);
input_task();
// if (input_task() < 0) {
// printf ("No additional tasks at time %d!\n", global_time);
// }
if (global_time > 1500)
break;
}
printf ("\n-------------------------------\n");
printf ("HDRT : %d miss %d ratio %f\n", hdrt, hdrtmt, (double)hdrtmt/hdrt);
printf ("SFRT : %d miss %d ratio %f\n", sfrt, sfrtmt, (double)sfrtmt/sfrt);
printf ("NOML : %d miss %d ratio %f\n", nml, nmlmt, (double)nmlmt/nml);
return 0;
}
