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cd4386a931
linux/drivers/s390/char
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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
..
con3215.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
con3270.c s390: use false/true when using bool 2017-01-16 07:27:54 +01:00
ctrlchar.c
ctrlchar.h
defkeymap.c
defkeymap.map
diag_ftp.c
diag_ftp.h
fs3270.c sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h> 2017-03-02 08:42:29 +01:00
hmcdrv_cache.c
hmcdrv_cache.h
hmcdrv_dev.c
hmcdrv_dev.h
hmcdrv_ftp.c s390/hmcdrv: constify hmcdrv_ftp_ops structs 2015-12-30 10:34:25 +01:00
hmcdrv_ftp.h
hmcdrv_mod.c
Kconfig s390/sclp: add open for business support 2015-11-27 09:24:18 +01:00
keyboard.c s390 keyboard.c: don't open-code strndup_user() 2017-05-15 23:41:50 -04:00
keyboard.h
Makefile s390/sclp: move early printk code to drivers 2017-02-08 14:13:17 +01:00
monreader.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
monwriter.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
raw3270.c s390/raw3270: constify attribute_group structures. 2017-07-26 08:25:20 +02:00
raw3270.h s390/3270: avoid endless I/O loop with disconnected 3270 terminals 2016-05-04 16:29:53 +02:00
sclp_async.c
sclp_cmd.c s390/sclp: single increment assignment control 2017-07-26 08:25:13 +02:00
sclp_con.c s390/console: Make preferred console handling more consistent 2016-07-13 10:58:07 +02:00
sclp_config.c s390/sclp: add const to bin_attribute structure 2017-08-03 13:16:29 +02:00
sclp_cpi_sys.c s390/sclp: event type macro cleanup 2016-04-15 18:16:39 +02:00
sclp_cpi_sys.h
sclp_ctl.c s390: char: make slp_ctl explicitly non-modular 2016-11-10 16:55:46 +01:00
sclp_diag.h
sclp_early_core.c s390/sclp: get rid of common response code handling 2017-02-08 14:13:21 +01:00
sclp_early.c s390/mm: add no-dat TLB flush optimization 2017-07-25 06:55:30 +02:00
sclp_ftp.c
sclp_ftp.h
sclp_ocf.c s390/sclp_ocf: constify attribute_group structures. 2017-07-26 08:25:23 +02:00
sclp_pci.c s390/sclp: avoid compile warning in sclp_pci_report 2016-04-21 09:51:17 +02:00
sclp_quiesce.c s390: char: make slcp_quiesce explicitly non-modular 2016-10-31 17:55:39 +01:00
sclp_rw.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sclp_rw.h
sclp_sdias.c
sclp_sdias.h
sclp_tty.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sclp_tty.h
sclp_vt220.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
sclp.c s390: drivers: convert to use DRIVER_ATTR_RO/WO 2017-06-12 16:14:31 +02:00
sclp.h s390/sclp: get rid of common response code handling 2017-02-08 14:13:21 +01:00
tape_34xx.c
tape_3590.c s390/tape: Use memdup_user() rather than duplicating its implementation 2016-08-24 09:23:57 +02:00
tape_3590.h
tape_char.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
tape_class.c
tape_class.h
tape_core.c s390/tape: constify attribute_group structures. 2017-07-26 08:25:21 +02:00
tape_proc.c
tape_std.c
tape_std.h
tape.h
tty3270.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
tty3270.h
vmcp.c s390/cpcmd,vmcp: avoid GFP_DMA allocations 2017-08-09 09:09:35 -04:00
vmcp.h
vmlogrdr.c s390: drivers: convert to use DRIVER_ATTR_RO/WO 2017-06-12 16:14:31 +02:00
vmur.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
vmur.h
zcore.c s390: proper type casts for csum_partial invocations 2017-01-16 07:27:53 +01:00