linux/drivers/s390
Heiko Carstens cd4386a931 s390/cpcmd,vmcp: avoid GFP_DMA allocations
According to the CP Programming Services manual Diagnose Code 8
"Virtual Console Function" can be used in all addressing modes. Also
the input and output buffers do not have a limitation which specifies
they need to be below the 2GB line.

This is true at least since z/VM 5.4.

Therefore remove the sam31/64 instructions and allow for simple
GFP_KERNEL allocations. This makes it easier to allocate a 1MB page
if the user requested such a large return buffer.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-08-09 09:09:35 -04:00
..
block s390/dasd: constify attribute_group structures. 2017-07-26 08:25:17 +02:00
char s390/cpcmd,vmcp: avoid GFP_DMA allocations 2017-08-09 09:09:35 -04:00
cio s390/cio: add const to bin_attribute structures 2017-08-03 13:16:30 +02:00
crypto s390/zcrypt_card: constify attribute_group structures. 2017-07-26 08:25:17 +02:00
net s390/qeth: constify attribute_group structures. 2017-07-26 08:25:19 +02:00
scsi SCSI misc on 20170220 2017-02-21 11:51:42 -08:00
virtio Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-05-16 09:24:44 -07:00
Makefile