Staging: sep: limit time to wait for reconfig shared area complete (be38efe1) · Commits · 戴 / test

drivers/staging/sep/sep_driver.c

+8 −1

Original line number	Diff line number	Diff line
		@@ -53,6 +53,7 @@
		#include <asm/cacheflush.h>
		#include <linux/sched.h>
		#include <linux/delay.h>
		#include <linux/jiffies.h>
		#include <linux/rar_register.h>

		#include "../memrar/memrar.h"
		@@ -3244,6 +3245,9 @@ static int sep_reconfig_shared_area(struct sep_device *sep)
		{
		int ret_val;

		/* use to limit waiting for SEP */
		unsigned long end_time;

		dev_dbg(&sep->pdev->dev, "reconfig shared area start\n");

		/* Send the new SHARED MESSAGE AREA to the SEP */
		@@ -3255,7 +3259,10 @@ static int sep_reconfig_shared_area(struct sep_device *sep)
		/* Poll for SEP response */
		ret_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR);

		while (ret_val != 0xffffffff && ret_val != sep->shared_bus)
		end_time = jiffies + (WAIT_TIME * HZ);

		while ((time_before(jiffies, end_time)) && (ret_val != 0xffffffff) &&
		(ret_val != sep->shared_bus))
		ret_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR);

		/* Check the return value (register) */

+2 −0

Original line number	Diff line number	Diff line
		@@ -230,5 +230,7 @@ held by the proccess (struct file) */
		/* the token that defines the data pool pointers address */
		#define SEP_EXT_CACHE_ADDR_VAL_TOKEN 0xBABABABA

		/* Time limit for SEP to finish */
		#define WAIT_TIME 10

		#endif /* SEP DRIVER CONFIG */