example: kernel: update per_init

Wayne Ren · Wayne Ren · commit b0a3e6411684 · 2019-06-27T14:49:59.000+08:00
call timer_present to check whether perf timer present

Signed-off-by: Wayne Ren &lt;wei.ren@synopsys.com&gt;
diff --git a/example/freertos/kernel/main.c b/example/freertos/kernel/main.c
@@ -135,12 +135,13 @@ static int sample_count = 0;
 /** performance timer initialization */
 static void perf_init(unsigned int id)
 {
-	if (timer_start(id, TIMER_CTRL_NH, 0xFFFFFFFF) < 0) {
-		EMBARC_PRINTF("perf timer init failed\r\n");
-
+	if (timer_present(id) == 0) {
+		EMBARC_PRINTF("perf timer %d is not present\r\n", id);
 		while (1);
 	}
 
+	timer_start(id, TIMER_CTRL_NH, 0xFFFFFFFF);
+
 	perf_id = id;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -135,12 +135,13 @@ static int sample_count = 0;`
`135`	`135`	`/** performance timer initialization */`
`136`	`136`	`static void perf_init(unsigned int id)`
`137`	`137`	`{`
`138`		`- if (timer_start(id, TIMER_CTRL_NH, 0xFFFFFFFF) < 0) {`
`139`		`- EMBARC_PRINTF("perf timer init failed\r\n");`
`140`		`-`
	`138`	`+ if (timer_present(id) == 0) {`
	`139`	`+ EMBARC_PRINTF("perf timer %d is not present\r\n", id);`
`141`	`140`	`while (1);`
`142`	`141`	`}`
`143`	`142`
	`143`	`+ timer_start(id, TIMER_CTRL_NH, 0xFFFFFFFF);`
	`144`	`+`
`144`	`145`	`perf_id = id;`
`145`	`146`	`}`
`146`	`147`