void core1_high() {
printc("core %ld high prio thd %d running.\n", cos_cpuid(), cos_get_thd_id());
create_thd(0, HIGH_PRIO);
create_thd(1, LOW_PRIO);
/* Brand operations removed. Add acap creation here. */
int received_ipi = 0;
int param[4];
u64_t s, e;
int iter = 0;
while (1) {
int ret = 0;
/* printc("core %ld going to wait, thd %d\n", cos_cpuid(), cos_get_thd_id()); */
/* if (-1 == (ret = cos_ainv_wait(...))) BUG(); */
/* printc("core %ld, rec %d\n", cos_cpuid(), ++received_ipi); */
param[0] = shared_mem[0];
param[1] = shared_mem[1];
param[2] = shared_mem[2];
param[3] = shared_mem[3];
assert(param[0] == 2);
assert(param[1] == 4);
assert(param[2] == 6);
assert(param[3] == 8);
/* rdtscll(e); */
/* data[iter++] = e - c1_tsc; */
int i;
for (i = 0; i < n_wait; i++) {
delay(20);
/* printc("core %d triggering evt %d, i %d....\n", cos_cpuid(), evt, i); */
shared_ret = 10;
/* rdtscll(s); */
evt_trigger(cos_spd_id(), evt);
/* rdtscll(e); */
/* data[iter++] = e - s; */
/* printc("core %d triggerred evt %d, i %d....\n", cos_cpuid(), evt, i); */
}
}
}
void core0_high() {
printc("core %ld high prio thd %d running.\n", cos_cpuid(), cos_get_thd_id());
create_thd(0, LOW_PRIO); // creates low on core 0
int i = 0;
n_wait = 1;
delay(20);
evt = evt_create(cos_spd_id());
printc("core %ld created evt %d....\n", cos_cpuid(), evt);
int my_ret;
u64_t s, e;
while (i < ITER) {
/* rdtscll(s); */
shared_mem[0] = 2;
shared_mem[1] = 4;
shared_mem[2] = 6;
shared_mem[3] = 8;
/* add async inv here. */
/* rdtscll(e); */
/* data[i] = e - s; */
/* printc("core %d ipi sent, going to evt_wait....\n", cos_cpuid()); */
/* rdtscll(c0_high); */
int ret = evt_wait_n(cos_spd_id(), evt, n_wait);
my_ret = shared_ret;
rdtscll(e);
data[i] = e - c0_tsc;
assert(my_ret == 10);
/* printc("core %d up from evt_wait....\n", cos_cpuid()); */
i++;
}
printc("core %ld test done, going to output...\n", cos_cpuid());
output();
printc("core %ld output done.\n", cos_cpuid());
}
void cos_init(void) {
static int first = 1;
printc("thd %d, core %ld in pong\n", cos_get_thd_id(), cos_cpuid());
if (first) {
first = 0;
create_thd(1, HIGH_PRIO);
printc("thd %d, core %ld done init in pong\n", cos_get_thd_id(), cos_cpuid());
return;
}
//core 1
static int first_core1 = 1;
if (cos_cpuid() == 1) {
if (first_core1 == 1) {
first_core1 = 0;
core1_high();
} else {
core1_low();
}
return;
}
//core 0
static int first_core0 = 1;
if (cos_cpuid() == 0) {
if (first_core0 == 1) {
first_core0 = 0;
core0_high();
} else {
core0_low();
}
return;
}
return;
}
void cos_init(void *arg)
{
int start_time_in_ticks = 0;
int duration_time_in_ticks = 0;
int local_period = 0;
static int first = 0;
// static int pre_run = 0;
parse_initstr();
local_period = period;
unsigned long cyc_per_tick;
cyc_per_tick = sched_cyc_per_tick();
unsigned long exe_cycle;
exe_cycle = cyc_per_tick/US_PER_TICK;
exe_cycle = exe_cycle*exe_t;
start_time_in_ticks = start_time*100;
duration_time_in_ticks = duration_time*100;
printc("In spd %ld Thd %d, period %d ticks, execution time %d us in %lu cycles\n", cos_spd_id(),cos_get_thd_id(), local_period, exe_t, exe_cycle);
int event_thd = 0;
unsigned long pre_t_0 = 0;
if (local_period <= 0){/* Create all non-periodic tasks */
#ifdef BEST_EFF // for best effort sys now
int i;
if (first == 0){
for (i=0;i<5;i++) create_thd("r0");
pre_t_0 = sched_timestamp();
first = 1;
}
printc("<<<<1 thd %d in spd %ld\n",cos_get_thd_id(), cos_spd_id());
event_thd = cos_get_thd_id();
for (i = 0 ; i < 100; i++){
left(200000,200000,0,0);
}
unsigned long pre_run_remained = 0;
unsigned long numm = 10000*cyc_per_tick/US_PER_TICK;;
while(1) {
for (i = 0 ; i < 10; i++){
pre_run_remained = numm; /* refill */
pre_run_remained = left(20000,20000,0,0);
/* printc(" thd %d pre_t_0 %u pre_t %lu\n", cos_get_thd_id(), pre_t_0, pre_t); */
}
unsigned long pre_t = sched_timestamp();
if ( pre_t > pre_t_0 + 1*100) break;
}
printc("BF thd %d finish pre_run\n", cos_get_thd_id());
#endif
/* pub_duration_time_in_ticks = duration_time_in_ticks; */
timed_event_block(cos_spd_id(), start_time_in_ticks);
printc("<<<<2 thd %d in spd %ld\n",cos_get_thd_id(), cos_spd_id());
}
else {/* Create all periodic tasks */
if (local_period == 0 || (exe_t > local_period*US_PER_TICK)) BUG();
if (cos_get_thd_id() == 20) {
printc("pre allocating ...\n");
int mm;
for (mm = 0 ; mm < 3000; mm++)
left(70000, 70000, 0, 0);
printc("done.\n");
}
periodic_wake_create(cos_spd_id(), local_period);
int i = 0;
int waiting = 0;
if(start_time_in_ticks <= 0)
/* waiting = (50+100*10) / local_period; /\* use 50 before. Now change to let BF threads run first 10 seconds before 0 second *\/ */
waiting = (50) / local_period; /* use 50 before. Now change to let BF threads run first 10 seconds before 0 second */
else
waiting = start_time_in_ticks / local_period;
do {
periodic_wake_wait(cos_spd_id());
} while (i++ < waiting); /* wait 50 ticks */
}
/* Let all tasks run */
unsigned long exe_cyc_remained = 0;
// unsigned long long t;
// unsigned long val;
int refill_number = 0;
unsigned long exe_cyc_event_remained = 0;
while (1) {
if(local_period <= 0){ /* used for transient non-periodic tasks only */
exe_cyc_event_remained = exe_cycle; /* refill */
while(1) {
exe_cyc_event_remained = exe_cycle; /* refill */
/* rdtscll(t); */
/* val = (int)(t & (TOTAL_AMNT-1)); */
/* if (val >= 64){ */
exe_cyc_event_remained = left(exe_cyc_event_remained,exe_cycle,0,0);
/* } */
/* else{ */
/* exe_cyc_event_remained = right(exe_cyc_event_remained,exe_cycle,0,0); */
/* } */
unsigned long t = sched_timestamp();
/* if ( t > (unsigned long)(7*100 + start_time_in_ticks + duration_time_in_ticks)) { */
/* printc("thd %d left!!!\n",cos_get_thd_id()); */
if ( t > (unsigned long)( start_time_in_ticks + duration_time_in_ticks)) {
printc("thd %d left>>>\n",cos_get_thd_id());
timed_event_block(cos_spd_id(), 10000);
}
}
}
else{
/* rdtscll(start); */
/* used for transient periodic tasks only */
if (start_time_in_ticks > 0 && (local_period*refill_number > duration_time_in_ticks)){
for(;;) periodic_wake_wait(cos_spd_id());
}
exe_cyc_remained = exe_cycle; /* refill */
while(exe_cyc_remained) {
exe_cyc_remained = left(exe_cyc_remained,exe_cycle,0,0);
}
/* rdtscll(end); */
/* printc("%d, times : %d\n", cos_get_thd_id(), times); */
/* printc("\n @@thd %ld is sleeping in spd %d\n", cos_get_thd_id(), cos_spd_id()); */
periodic_wake_wait(cos_spd_id());
refill_number++;
/* printc("\n @@thd %ld is waking in spd %d\n", cos_get_thd_id(), cos_spd_id()); */
/* printc("\n thd %d refilled...%d\n", cos_get_thd_id(), refill_number); */
}
}
return;
}