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# Date Author Comment
38dd7cc7 03/08/2013 10:17 pm Christian Borntraeger

s390/css: Fix subchannel detection

We have to consider the m bit to find the real channel subsystem when
determining the last subchannel.

If we fail to take this into account, removal of a subchannel in
the middle of a big list of devices will stop device detection after...
50c8d9bf 01/29/2013 10:50 pm Cornelia Huck

s390: Use s390_cpu_physical_memory_map for tpi.

Map the I/O interruption code before calling into css.

Signed-off-by: Cornelia Huck <>
Signed-off-by: Alexander Graf <>
db1c8f53 01/29/2013 10:50 pm Cornelia Huck

s390: Channel I/O basic definitions.

Basic channel I/O structures and helper function.

Signed-off-by: Cornelia Huck <>
Signed-off-by: Alexander Graf <>
7b18aad5 01/29/2013 10:50 pm Cornelia Huck

s390: Add channel I/O instructions.

Provide handlers for (most) channel I/O instructions.

Signed-off-by: Cornelia Huck <>
Signed-off-by: Alexander Graf <>