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path: root/drivers/s390/cio/cio.c
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Diffstat (limited to 'drivers/s390/cio/cio.c')
-rw-r--r--drivers/s390/cio/cio.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 3a403f195cf8..b471ac4a1bf6 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -2,8 +2,7 @@
2 * drivers/s390/cio/cio.c 2 * drivers/s390/cio/cio.c
3 * S/390 common I/O routines -- low level i/o calls 3 * S/390 common I/O routines -- low level i/o calls
4 * 4 *
5 * Copyright (C) 1999-2002 IBM Deutschland Entwicklung GmbH, 5 * Copyright (C) IBM Corp. 1999,2006
6 * IBM Corporation
7 * Author(s): Ingo Adlung (adlung@de.ibm.com) 6 * Author(s): Ingo Adlung (adlung@de.ibm.com)
8 * Cornelia Huck (cornelia.huck@de.ibm.com) 7 * Cornelia Huck (cornelia.huck@de.ibm.com)
9 * Arnd Bergmann (arndb@de.ibm.com) 8 * Arnd Bergmann (arndb@de.ibm.com)
@@ -881,10 +880,18 @@ static void cio_reset_pgm_check_handler(void)
881static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr) 880static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr)
882{ 881{
883 int rc; 882 int rc;
883 register struct subchannel_id reg1 asm ("1") = schid;
884 884
885 pgm_check_occured = 0; 885 pgm_check_occured = 0;
886 s390_reset_pgm_handler = cio_reset_pgm_check_handler; 886 s390_reset_pgm_handler = cio_reset_pgm_check_handler;
887 rc = stsch(schid, addr); 887
888 asm volatile(
889 " stsch 0(%2)\n"
890 " ipm %0\n"
891 " srl %0,28"
892 : "=d" (rc)
893 : "d" (reg1), "a" (addr), "m" (*addr) : "memory", "cc");
894
888 s390_reset_pgm_handler = NULL; 895 s390_reset_pgm_handler = NULL;
889 if (pgm_check_occured) 896 if (pgm_check_occured)
890 return -EIO; 897 return -EIO;