/*
* Copyright ( c ) 2019 , Google , Inc . All rights reserved
*
* Permission is hereby granted , free of charge , to any person obtaining
* a copy of this software and associated documentation files
* ( the " Software " ) , to deal in the Software without restriction ,
* including without limitation the rights to use , copy , modify , merge ,
* publish , distribute , sublicense , and / or sell copies of the Software ,
* and to permit persons to whom the Software is furnished to do so ,
* subject to the following conditions :
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software .
*
* THE SOFTWARE IS PROVIDED " AS IS " , WITHOUT WARRANTY OF ANY KIND ,
* EXPRESS OR IMPLIED , INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY , FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT .
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM , DAMAGES OR OTHER LIABILITY , WHETHER IN AN ACTION OF CONTRACT ,
* TORT OR OTHERWISE , ARISING FROM , OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE .
*/
#include <assert.h>
#include <err.h>
#include <kernel/timer.h>
#include <lk/init.h>
#include <platform.h>
#include <trace.h>
#include <lib/trusty/event.h>
#include <lib/trusty/uirq.h>
#include <lib/trusty/uuid.h>
#define LOCAL_TRACE 0
#define MS_TO_NS(ms) ((ms)*1000 ULL * 1000 ULL)
struct timer_uirq {
struct uirq uirq;
struct timer tm;
struct handle* handle;
lk_time_ns_t delay;
};
static const struct uuid _test_app_uuid[] = {
/* UIRQ unittest app UUID : {e20af937-a4d0-4b95-b852-95ef21333cd1} */
{0 xe20af937,
0 xa4d0,
0 x4b95,
{0 xb8, 0 x52, 0 x95, 0 xef, 0 x21, 0 x33, 0 x3c, 0 xd1}},
};
static struct timer_uirq _tm_uirqs[] = {
{
.uirq = UIRQ_INITIALIZER("test-uirq-10ms" ,
&_test_app_uuid[0 ],
1 ,
0 ),
.tm = TIMER_INITIAL_VALUE(.tm),
.delay = MS_TO_NS(10 ),
},
{
.uirq = UIRQ_INITIALIZER("test-uirq-no-access" ,
&zero_uuid,
1 ,
0 ),
.tm = TIMER_INITIAL_VALUE(.tm),
.delay = MS_TO_NS(50 ),
},
};
static lk_time_ns_t ts_start;
static lk_time_ns_t ts_notified;
static lk_time_ns_t ts_handled;
static lk_time_ns_t ttl_elapsed1;
static lk_time_ns_t ttl_elapsed2;
static unsigned int ttl_count;
static enum handler_return test_tm_uirq_callback(struct timer* t,
lk_time_ns_t now,
void * arg) {
struct timer_uirq* u = arg;
ts_start = current_time_ns();
event_source_signal(u->handle);
ts_notified = current_time_ns();
return INT_RESCHEDULE;
};
static void tm_uirq_mask(const void * arg) {}
static void tm_uirq_unmask(const void * arg) {
ts_handled = current_time_ns();
if (ts_start) {
ttl_elapsed1 += ts_notified - ts_start;
ttl_elapsed2 += ts_handled - ts_start;
ttl_count++;
ts_start = 0 ;
}
struct timer_uirq* u = (struct timer_uirq*)arg;
timer_set_oneshot_ns(&u->tm, u->delay, test_tm_uirq_callback, u);
}
static void tm_uirq_open(const void * arg) {
ttl_count = 0 ;
ts_start = 0 ;
ts_notified = 0 ;
ts_handled = 0 ;
ttl_elapsed1 = 0 ;
ttl_elapsed2 = 0 ;
struct timer_uirq* u = (struct timer_uirq*)arg;
timer_set_oneshot_ns(&u->tm, u->delay, test_tm_uirq_callback, u);
}
static void tm_uirq_close(const void * arg) {
struct timer_uirq* u = (struct timer_uirq*)arg;
timer_cancel_sync(&u->tm);
if (ttl_count) {
LTRACEF("cnt=%u: %lld %lld\n" , ttl_count, ttl_elapsed1, ttl_elapsed2);
}
}
static const struct event_source_ops _tm_evt_ops = {
.open = tm_uirq_open,
.mask = tm_uirq_mask,
.unmask = tm_uirq_unmask,
.close = tm_uirq_close,
};
static void uirq_test_init(uint level) {
int rc;
/* register uirq interrupts */
for (uint i = 0 ; i < countof(_tm_uirqs); i++) {
struct timer_uirq* u = &_tm_uirqs[i];
rc = uirq_register_sw_irq(&u->uirq, &_tm_evt_ops, u, &u->handle);
if (rc < 0 ) {
TRACEF("Failed (%d) to initialize test uirq %s\n" , rc,
u->uirq.name);
}
}
}
LK_INIT_HOOK(uirq_test, uirq_test_init, LK_INIT_LEVEL_APPS - 2 );
Messung V0.5 in Prozent C=99 H=98 G=98
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-06-27)
¤
*© Formatika GbR, Deutschland