linux/drivers/s390
Halil Pasic bb99332a2b s390/cio: introduce DMA pools to cio
To support protected virtualization cio will need to make sure the
memory used for communication with the hypervisor is DMA memory.

Let us introduce one global pool for cio.

Our DMA pools are implemented as a gen_pool backed with DMA pages. The
idea is to avoid each allocation effectively wasting a page, as we
typically allocate much less than PAGE_SIZE.

Signed-off-by: Halil Pasic <pasic@linux.ibm.com>
Reviewed-by: Sebastian Ott <sebott@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael Mueller <mimu@linux.ibm.com>
Tested-by: Michael Mueller <mimu@linux.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2019-06-15 12:24:56 +02:00
..
block s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
char docs: s390: convert docs to ReST and rename to *.rst 2019-06-11 09:48:14 +02:00
cio s390/cio: introduce DMA pools to cio 2019-06-15 12:24:56 +02:00
crypto s390/pkey: Use -ENODEV instead of -EOPNOTSUPP 2019-06-15 12:24:36 +02:00
net s390/Kconfig: pedantic cleanups 2019-06-04 15:03:46 +02:00
scsi scsi: zfcp: fix to prevent port_remove with pure auto scan LUNs (only sdevs) 2019-05-29 21:52:31 -04:00
virtio virtio: fixes, features 2019-05-14 14:12:59 -07:00
Makefile kbuild: rename built-in.o to built-in.a 2018-03-26 02:01:19 +09:00