aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--arch/s390/kernel/swsusp_asm64.S3
-rw-r--r--drivers/s390/cio/css.c5
2 files changed, 8 insertions, 0 deletions
diff --git a/arch/s390/kernel/swsusp_asm64.S b/arch/s390/kernel/swsusp_asm64.S
index b354427e03b..c56d3f56d02 100644
--- a/arch/s390/kernel/swsusp_asm64.S
+++ b/arch/s390/kernel/swsusp_asm64.S
@@ -256,6 +256,9 @@ restore_registers:
lghi %r2,0
brasl %r14,arch_set_page_states
+ /* Reinitialize the channel subsystem */
+ brasl %r14,channel_subsystem_reinit
+
/* Return 0 */
lmg %r6,%r15,STACK_FRAME_OVERHEAD + __SF_GPRS(%r15)
lghi %r2,0
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 19635d47ded..511649115bd 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -1043,6 +1043,11 @@ static int __init channel_subsystem_init_sync(void)
}
subsys_initcall_sync(channel_subsystem_init_sync);
+void channel_subsystem_reinit(void)
+{
+ chsc_enable_facility(CHSC_SDA_OC_MSS);
+}
+
#ifdef CONFIG_PROC_FS
static ssize_t cio_settle_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)