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linux/drivers/s390/cio
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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
..
airq.c s390/airq: provide cacheline aligned ivs 2019-04-29 10:47:01 +02:00
blacklist.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
blacklist.h s390: add a few more SPDX identifiers 2017-12-05 07:51:09 +01:00
ccwgroup.c s390/ccwgroup: add get_ccwgroupdev_by_busid() 2018-10-08 09:09:59 +02:00
ccwreq.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
chp.c s390/cio: ensure that a chpid is registered only once 2018-07-17 07:27:51 +02:00
chp.h s390/chsc: query utility strings via fmt3 channel path descriptor 2018-03-26 16:13:16 +02:00
chsc.c s390 update with improvements and bug fixes for 5.1-rc2 2019-03-28 08:35:32 -07:00
chsc.h s390/cio: add function chsc_sgib() 2019-02-05 14:29:23 +01:00
chsc_sch.c compat: Move compat_timespec/ timeval to compat_time.h 2018-04-19 13:29:54 +02:00
chsc_sch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
cio.c s390: show statistics for MSI IRQs 2019-04-29 10:47:01 +02:00
cio.h s390/airq: recognize directed interrupts 2019-04-29 10:47:01 +02:00
cio_debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
cmf.c mm: remove include/linux/bootmem.h 2018-10-31 08:54:16 -07:00
crw.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
css.c s390/cio: introduce DMA pools to cio 2019-06-15 12:24:56 +02:00
css.h s390/css: reduce stsch calls 2018-07-17 07:27:55 +02:00
device.c s390/cio: fix unbind of io_subchannel_driver 2018-03-26 16:13:06 +02:00
device.h s390/cio: Convert timers to use timer_setup() 2017-11-14 11:01:36 +01:00
device_fsm.c s390/cio: clear timer when terminating driver I/O 2018-02-22 10:09:27 +01:00
device_id.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
device_ops.c s390/cio: add helper to query utility strings per given ccw device 2018-05-23 08:06:56 +02:00
device_pgid.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
device_status.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
eadm_sch.c s390: cio: add SPDX identifiers to the remaining files 2017-11-24 14:28:41 +01:00
eadm_sch.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fcx.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idset.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
idset.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
io_sch.h s390/cio: fix return code after missing interrupt 2018-02-22 10:09:25 +01:00
ioasm.c s390/cio: export hsch to modules 2019-04-24 14:18:51 +02:00
ioasm.h s390: assume diag308 set always works 2018-04-10 07:38:59 +02:00
isc.c s390: cio: add SPDX identifiers to the remaining files 2017-11-24 14:28:41 +01:00
itcw.c s390/cio: fix kernel-doc usage 2018-02-05 07:34:52 +01:00
Makefile vfio-ccw: add handling for async channel instructions 2019-04-24 14:18:51 +02:00
orb.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
qdio.h s390/qdio: eliminate queue's last_move cursor 2019-04-10 17:47:26 +02:00
qdio_debug.c s390/qdio: eliminate queue's last_move cursor 2019-04-10 17:47:26 +02:00
qdio_debug.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2017-11-13 11:47:01 -08:00
qdio_main.c s390/qdio: handle PENDING state for QEBSM devices 2019-06-07 10:10:15 +02:00
qdio_setup.c s390/qdio: clean up pci_out_supported() 2019-03-29 07:23:49 +01:00
qdio_thinint.c s390/cio: fix kdoc for tiqdio_thinint_handler 2019-06-07 10:10:00 +02:00
scm.c s390: cio: add SPDX identifiers to the remaining files 2017-11-24 14:28:41 +01:00
trace.c s390/cio: Remove tracing for rchp instruction 2019-05-08 15:01:22 +02:00
trace.h s390/cio: Remove tracing for rchp instruction 2019-05-08 15:01:22 +02:00
vfio_ccw_async.c vfio-ccw: add handling for async channel instructions 2019-04-24 14:18:51 +02:00
vfio_ccw_cp.c s390/cio: Remove vfio-ccw checks of command codes 2019-06-03 12:02:55 +02:00
vfio_ccw_cp.h vfio-ccw: make it safe to access channel programs 2019-04-24 14:18:51 +02:00
vfio_ccw_drv.c s390/cio: Set vfio-ccw FSM state before ioeventfd 2019-06-03 12:02:55 +02:00
vfio_ccw_fsm.c vfio-ccw: add handling for async channel instructions 2019-04-24 14:18:51 +02:00
vfio_ccw_ops.c vfio-ccw: Release any channel program when releasing/removing vfio-ccw mdev 2019-04-24 14:18:51 +02:00
vfio_ccw_private.h vfio-ccw: add handling for async channel instructions 2019-04-24 14:18:51 +02:00
vfio_ccw_trace.h vfio: ccw: add tracepoints for interesting error paths 2018-05-29 09:27:42 +02:00