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Staging: sep: limit time to wait for reconfig shared area complete

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Signed-off-by: Mark Allyn <mark.a.allyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Mark Allyn 2010-12-09 09:32:13 -08:00 committed by Greg Kroah-Hartman
parent 8f9346a091
commit be38efe117
2 changed files with 10 additions and 1 deletions
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9
drivers/staging/sep/sep_driver.c
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@ -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
drivers/staging/sep/sep_driver_config.h
View File

@ -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 */